CN101597121B - Distributed domestic sewage treatment reactor and treatment method thereof - Google Patents
Distributed domestic sewage treatment reactor and treatment method thereof Download PDFInfo
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- CN101597121B CN101597121B CN2009100336878A CN200910033687A CN101597121B CN 101597121 B CN101597121 B CN 101597121B CN 2009100336878 A CN2009100336878 A CN 2009100336878A CN 200910033687 A CN200910033687 A CN 200910033687A CN 101597121 B CN101597121 B CN 101597121B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a distributed domestic sewage treatment reactor and a treatment method thereof; wherein, the reactor mainly comprises an outer shell, a gas-guide tube, an anaerobic chamber, an aerobic chamber, a catchment chamber and a water inlet tube; the bottom is provided with a water outlet, and the anaerobic chamber, the aerobic chamber and the catchment chamber are arranged from top to bottom, wherein the shell belonging to the aerobic chamber is provided with air inlet holes, filler in the anaerobic chamber is anthracite or lignite with a grain diameter less than 10mm, the filler in the aerobic chamber is humification rubbish which goes through more than 8 years of closure of domestic sewage landfill with a grain diameter less than 20mm, the gas-guide tube is arranged on the symmetrical centerline of the reactor. The water outlet is connected with a water seal well, a circumfluence tube is arranged between the water seal well and the water inlet tube. The sewage treatment method has the following steps: treating a septic tank; carrying out anaerobic reaction, facilitating the sewage resulting from the anaerobic reaction to enter the underneath aerobic chamber to be subjected to aerobic reaction; finally, refluxing the effluent according to the proportion of 10-30%. The reactor and the method of the invention can effectively eliminate COD, NH3-N, TN and TP and realize discharge after reaching standards.
Description
One, technical field
The present invention relates to a kind of distributed domestic sewage treatment reactor and treatment process thereof, a kind of specifically integrated form biochemical reactor, it can be used for the processing of dispersant type domestic wastewaters such as rural area, sub-district, also can be used for the processing of the sanitary sewage in places such as hotel, Expressway Service, boats and ships.
Two, background technology
In recent years, along with China's rapid development of economy, a large amount of dischargings of sanitary sewage, especially in the rural area of China, sanitary sewage seldom can obtain the comprehensive regulation.With the TAI HU AREA is example, and Taihu Lake basin is economically developed, and is populous, and sanitary sewage quantity discharged along the lake in recent years increases sharply.Advance under the situation that industrial pollution source improvement " is proposed the mark upgrading " and urban wastewater treatment firm is built extensive, the Taihu Lake basin point-source pollution has obtained effective control, domestic sewage in rural areas by using, agricultural run-off and aquaculture wastewater then become the principal pollutant source of Taihu Lake body eutrophication, effectively handle the life in the countryside source of pollution and have just become the task of top priority.At present, most of villages along the lake and farm dwelling all are dispersion state, make that domestic sewage in rural areas by using is difficult to focus on.Have 4.6 ten thousand natural villages as Taihu Lake basin, population only has 830 more than 800 people, only accounts for 1.8% of sum.Except that the small part village being included in the sewage collecting pipe network by sanitary sewage, most sanitary sewages are extensive discharging, without any processing or only after the septic tank simple process, be disposed to nearby water body along road ditch or road surface, this becomes one of major reason of Taihu Lake water system water quality deterioration, also is the hidden danger of groundwater pollution simultaneously." TAIHU LAKE Pollution abatement programme of work " according to the issue of Jiangsu Province government; the processing rate of (5km along the lake and lake inlet mouth trace back each 1km scope of 10km both sides) interior domestic sewage in rural areas by using reaches 70% to first class of protection district, Taihu Lake in 2010, and other regional domestic sewage in rural areas by using processing rates reach 40%.
It is carrier that the domestic sewage treatment process of being studied at present mostly needs expensive equipment, and related device type is various, cost has high input, the working cost height, and power consumption is also big.And technology exists technical requirements height, defective that the complex management difficulty is big.
Therefore, at the characteristics of domestic sewage in rural areas by using, in conjunction with the practical situation in China rural area, research and development are fit to China's vast Rural areas domestic sewage dispersant type Ecological Disposal Technology and have realistic meaning.
Three, summary of the invention
For having high input of solving that prior art exists, shortcoming that cost is high, the invention provides a kind of distributed domestic sewage treatment reactor and treatment process thereof, have simple in structurely, operational management is easy and invest less advantage.
Technical scheme of the present invention is: a kind of distributed domestic sewage treatment reactor, mainly comprise shell, airway, anaerobic room, aerobic room, collecting chamber, water inlet pipe, cover top portion is provided with water inlet pipe, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Outer casing bottom is provided with water outlet, be divided into anaerobic room, 1～4 aerobic room with metalling successively from top to bottom in the shell, have collecting chamber in aerobic room, that part of shell of corresponding aerobic room is provided with some air inlet ports, anaerobic room and the aerobic indoor filler that is provided with, filler in the anaerobic room is hard coal or the brown coal of particle diameter less than 10mm, and the filler in the aerobic room is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.The thickness of filler is 800～1000mm in the anaerobic room, and the thickness of filler is 400～600mm in the aerobic room, and aerobic room's total height is 2000～2800mm, is generally to be divided into 3 aerobic room.Reactor cross section can be for square or circular, on the symmetrical center line of reactor, be provided with airway, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with the three phase separation chamber outward, the outlet of airway is provided with electric contact vacuum pressure gauge and centrifugal blower, and the electric contact vacuum pressure gauge is controlled blower fan and opened and closed under setting pressure.Water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and reflux by a certain percentage, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule.
Filler in the aerobic room is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then; And the filler of anaerobic room is a duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
The method that described distributed domestic sewage treatment reactor is disposed of sewage may further comprise the steps:
The first step, septic tank are handled: sanitary sewage enters septic tank and removes bigger impurity, even after, the sanitary sewage water quality that goes out septic tank satisfies: COD
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L;
Second step, the sanitary sewage that goes out septic tank is by the water inlet pipe of water pump lifting to reactor top, the multitube water distribution is adopted in water inlet, and the anaerobic room of sewage uniformly distributing last layer to the reactor is carried out anaerobic reaction, and the sewage that anaerobic reaction is good enters following aerobic room and carries out aerobic reaction; After collecting chamber is collected the laggard trapped well of going into; This step adopts the intermittent operation mode, and be one-period every day, and flooding time 8-14 hour, the time of doing that falls was 10-14 hour, and the water inlet surface load is 1.5-2.0m
3/ (m
2D);
In the 3rd step, the water outlet that enters trapped well after second step handled enters water inlet pipe in 10%～30% ratio through return line and refluxes, and the gas that produces in the whole process is discharged through airway.Water outlet after the processing refluxes by a certain percentage, promptly reduces the into impact load of water, can be into water inoculation aerobic, hold concurrently oxygen, anaerobion again.Sewage has experienced anaerobism, anoxic and aerobic environment conversion in the process of each section layer of flowing through, can effectively remove COD, NH
3-N, TN and TP can realize qualified discharge.
Beneficial effect:
1. the fast and anti-shock loading of reactor start-up
Select for use the soil ulmin filler of hard coal or brown coal preparation to have good hydraulic characteristic, abundant microporous gap structure and absorption property in the anaerobic room, can provide splendid existence and propagation environment, the blockage problem of simultaneously effective resolution system for anaerobion.
Select the inertia biologic packing material of humic rubbish preparation in the aerobic room for use, not only can realize waste recycling, for a new road is opened up in the storage humic garbage as resource utilization of billions of tons in China, and can utilize the abundant biophase of humic rubbish, good ydrodynamics characteristic and physics-chem characteristic, realize that treatment system starts fast, and it is strong to possess capacity of resisting impact load, high treating effect.
2. do not produce excess sludge
The present invention adopts biological activity strong, humic rubbish that organic content is high and hard coal, brown coal are as the chief component of inertia biologic packing material, in conjunction with the intermittent operation mode, make newly-increased microorganism stop falling to doing in the period and being dissolved of water into by endogenous respiration and humification process, therefore do not produce excess sludge, can save a large amount of sludge treatment and dispose investment and processing costs.
3. technology constitutes simply, and operational management is convenient
Do not need complicated water distribution system and triphase separator, it is simple that technology of the present invention is constituted, and operational management is easy.
4. can adopt buried structures as required, help keeping the anaerobic reaction temperature of winter operation, improve the processing efficiency of winter operation.
5. system is stable and processing efficiency is higher
Operate according to processing condition and processing parameter that the present invention provides in the technical scheme, handle the back stable effluent quality, the COD clearance can reach 80-95%, NH
3-N clearance can reach 85-99%, and the clearance of TP can reach 70-90%.
Four, description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is the structural representation of reactor among the present invention;
Wherein, 1 is anaerobic room, and 2 is metalling, and 3 is the three phase separation chamber, and 4 is air inlet port, and 5 is supporting layer, and 6 is collecting chamber, and 7 is water inlet pipe, and 8 is the sewage import, and 9 are the airway outlet, and 10 is airway, 11 aerobic room, 12 water outlets.
Fig. 3 is the structural representation of the top water inlet pipe of reactor among the present invention.
Five, embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail with embodiment:
Embodiment 1:
(1) preparation of filler: a, aerobic room are the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm with the main component of inertia biologic packing material.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.B, anaerobic room filler are duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
(2) construct reactor: as shown in Figure 2, reactor mainly comprises shell, airway 10, anaerobic room 1, aerobic room 11, collecting chamber 6, water inlet pipe 7, cover top portion is provided with water inlet pipe 7, outer casing bottom is provided with water outlet 12, be divided into anaerobic room 1 with metalling successively from top to bottom in the shell, 1～4 aerobic room 11, have collecting chamber 6 in aerobic room 11, corresponding aerobic room 11 that part of shells are provided with some air inlet ports 4, be provided with filler in anaerobic room 1 and the aerobic room 11, on the symmetrical center line of reactor, be provided with airway 10, water outlet 12 is connected with trapped well, trapped well and water inlet pipe 7 be provided with return line.Utilize glass reinforced plastic or steel or Steel Concrete to construct the containment structure of semitight, shell of reactor can be designed to circular or square, the diameter or the length of side can be determined according to water yield size, with metalling 2 space is divided into anaerobic room 1 and aerobic room 11 in the shell, aerobic room 11 has 3, wherein the filler of anaerobic room 1 is the duff filler, thickness is to change between the 800-1000mm, the depth of packing of aerobic room 11 can change between 400-600mm as required, quantity is determined as required, be generally 3, total height changes between 2000-2800mm, separate with metalling 2 between each chamber, so that collect the gas of anaerobic room 1 reaction generation and the good oxygen condition that keeps aerobic room 11.Airway 10 is positioned at the symmetry centre of reactor, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with three phase separation chamber 3 outward, 3 separation enter airway 10 by gas port to the gas that produces in the reactor through the three phase separation chamber, and aspirate with centrifugal blower in the exit of airway 10, and blower fan is controlled by the electric contact vacuum pressure gauge, keep the oxygen concn of each chamber in the reactor, the specification of airway 10 is determined by reactor diameter and air quantity size; Water inlet pipe 7 adopts the multitube water distribution, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Water outlet is collected by collecting chamber 6 and is discharged by rising pipe through trapped well, and water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and be back to water inlet pipe, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule by 30% reflux ratio.Below aerobic room 11, be provided with collecting chamber 6, be provided with metalling and supporting layer 5 between aerobic room 11 and the collecting chamber 6 successively.
Present embodiment utilizes the DN200 plastics tubing as cladding, makes the anaerobism of inertia biologic packing material layered arrangement, aerobic combined reactor.The depth of packing of anaerobic room 1 and 3 aerobic room is followed successively by 800,400,400,400mm, and total height is 2800mm; Separate with metalling 2 between chamber and the chamber, metalling 2 is also arranged at the bottom of the top of anaerobic room 1 and aerobic room 11, and the gas that anaerobic reaction produces is collected by outwards discharging of blower fan suction through rubble separate layer and the airway that is positioned at the reactor symmetry centre; The blower fan start-stop is by the tensimeter control (the setting vacuum values is 0-2kPa) energetically of electric contact vacuum; 4 pipe water distributions are adopted in water inlet, and water outlet is collected through collecting chamber and discharged by trapped well.
(3) technical process: as shown in Figure 1, the first step, septic tank is handled: sanitary sewage enters septic tank and removes bigger impurity, even after, the sanitary sewage that goes out septic tank satisfies after the even water quality of equalizing tank: COD
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L;
Second step, the sanitary sewage that goes out septic tank carries out anaerobic reaction through water inlet pipe 7 with sewage uniformly distributing anaerobic room 1 of last layer to the reactor to the sewage import 8 on reactor top by water pump lifting, and the sewage that anaerobic reaction is good enters following aerobic room 11 and carries out aerobic reaction; After collecting chamber 6 is collected the laggard trapped well of going into; This step adopts the intermittent operation mode, and be one-period every day, and flooding time 8-14 hour, the time of doing that falls was 10-14 hour, and the water inlet surface load is 1.5-2.0m
3/ (m
2D);
In the 3rd step, the water outlet that enters trapped well after second step handled enters water inlet pipe 7 in 30% ratio through return line and refluxes, and the gas that produces in the whole process is discharged through airway 10.
The present embodiment testing data is as follows: water outlet COD
Cr＜70mg/L, NH
3-N＜5mg/L, TP＜1mg/L.
Embodiment 2:
(1) preparation of filler: a, aerobic room are the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm with the main component of inertia biologic packing material.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.B, anaerobic room filler are duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
(2) construct reactor: as shown in Figure 2, utilize glass reinforced plastic or steel or Steel Concrete to construct the containment structure of semitight, shell of reactor can be designed to circular or square, the diameter or the length of side can be determined according to water yield size, with metalling 2 space is divided into anaerobic room 1 and aerobic room 11 in the shell, aerobic room 11 has 3, wherein the filler of anaerobic room 1 is the duff filler, thickness is to change between the 800-1000mm, the depth of packing of aerobic room 11 can change between 400-600mm as required, quantity is determined as required, be generally 3, total height changes between 2000-2800mm, separates with metalling 2 between each chamber, so that collect the gas of anaerobic room 1 reaction generation and the good oxygen condition that keeps aerobic room 11.Airway 10 is positioned at the symmetry centre of reactor, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with three phase separation chamber 3 outward, 3 separation enter airway 10 by gas port to the gas that produces in the reactor through the three phase separation chamber, and aspirate with centrifugal blower in the exit of airway 10, and blower fan is controlled by the electric contact vacuum pressure gauge, keep the oxygen concn of each chamber in the reactor, the specification of airway 10 is determined by reactor diameter and air quantity size; Water inlet pipe 7 adopts the multitube water distribution, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Water outlet is collected by collecting chamber 6 and is discharged by rising pipe through trapped well, and water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and be back to water inlet pipe, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule by 30% reflux ratio.Below aerobic room 11, be provided with collecting chamber 6, be provided with metalling and supporting layer 5 between aerobic room 11 and the collecting chamber 6 successively.
Present embodiment utilizes the DN200 plastics tubing as cladding, makes the anaerobism of inertia biologic packing material layered arrangement, aerobic combined reactor.The depth of packing of anaerobic room 1 and 3 aerobic room is followed successively by 800,400,400,400mm, and total height is 2800mm; Separate with metalling 2 between chamber and the chamber, metalling 2 is also arranged at the bottom of the top of anaerobic room 1 and aerobic room 11, and the gas that anaerobic reaction produces is collected by outwards discharging of blower fan suction through rubble separate layer and the airway that is positioned at the reactor symmetry centre; The blower fan start-stop is by the tensimeter control (the setting vacuum values is 0-2kPa) energetically of electric contact vacuum; 4 pipe water distributions are adopted in water inlet, and water outlet is collected through collecting chamber and discharged by trapped well.
(3) technical process: as shown in Figure 1, septic tank effluent enters the reactor head water distributing pipe by water pump lifting behind the even water quality and quantity of equalizing tank, pass through each filler successively, is discharged by trapped well through the collecting chamber collection in the bottom; Water outlet refluxes in 30% ratio.
(4) processing condition and processing parameter: adopt the intermittent operation mode, sanitary sewage is (average water-quality COD after the even water quality of equalizing tank
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L) handle.Envrionment temperature is 15.0 ℃, and be one-period every day, flooding time 12 hours, and the time of doing that falls is 12 hours, the water inlet surface load is 1.5m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD
Cr＜70mg/L, NH
3-N＜5mg/L, TP＜1mg/L.
Embodiment 3:
(1) preparation of filler: a, aerobic room are the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm with the main component of inertia biologic packing material.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.B, anaerobic room filler are duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
(2) construct reactor: as shown in Figure 2, utilize glass reinforced plastic or steel or Steel Concrete to construct the containment structure of semitight, shell of reactor can be designed to circular or square, the diameter or the length of side can be determined according to water yield size, with metalling 2 space is divided into anaerobic room 1 and aerobic room 11 in the shell, aerobic room 11 has 3, wherein the filler of anaerobic room 1 is the duff filler, thickness is to change between the 800-1000mm, the depth of packing of aerobic room 11 can change between 400-600mm as required, quantity is determined as required, be generally 3, total height changes between 2000-2800mm, separates with metalling 2 between each chamber, so that collect the gas of anaerobic room 1 reaction generation and the good oxygen condition that keeps aerobic room 11.Airway 10 is positioned at the symmetry centre of reactor, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with three phase separation chamber 3 outward, 3 separation enter airway 10 by gas port to the gas that produces in the reactor through the three phase separation chamber, and aspirate with centrifugal blower in the exit of airway 10, and blower fan is controlled by the electric contact vacuum pressure gauge, keep the oxygen concn of each chamber in the reactor, the specification of airway 10 is determined by reactor diameter and air quantity size; Water inlet pipe 7 adopts the multitube water distribution, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Water outlet is collected by collecting chamber 6 and is discharged by rising pipe through trapped well, and water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and be back to water inlet pipe, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule by 30% reflux ratio.Below aerobic room 11, be provided with collecting chamber 6, be provided with metalling and supporting layer 5 between aerobic room 11 and the collecting chamber 6 successively.
Present embodiment utilizes the DN200 plastics tubing as cladding, makes the anaerobism of inertia biologic packing material layered arrangement, aerobic combined reactor.The depth of packing of anaerobic room 1 and 3 aerobic room is followed successively by 800,400,400,400mm, and total height is 2800mm; Separate with metalling 2 between chamber and the chamber, metalling 2 is also arranged at the bottom of the top of anaerobic room 1 and aerobic room 11, and the gas that anaerobic reaction produces is collected by outwards discharging of blower fan suction through rubble separate layer and the airway that is positioned at the reactor symmetry centre; The blower fan start-stop is by the tensimeter control (the setting vacuum values is 0-2kPa) energetically of electric contact vacuum; 4 pipe water distributions are adopted in water inlet, and water outlet is collected through collecting chamber and discharged by trapped well.
(3) technical process: as shown in Figure 1, septic tank effluent enters the reactor head water distributing pipe by water pump lifting behind the even water quality and quantity of equalizing tank, pass through each layer filler successively, is discharged by trapped well through the collecting chamber collection in the bottom; Water outlet refluxes in 30% ratio.
(4) processing condition and processing parameter: adopt the intermittent operation mode, sanitary sewage is (average water-quality COD after the even water quality of equalizing tank
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L) handle.Envrionment temperature is 32.5 ℃, and be one-period every day, flooding time 12 hours, and the time of doing that falls is 12 hours, the water inlet surface load is 1.5m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD
Cr＜70mg/L, NH
3-N＜5mg/L, TP＜1mg/L.
Embodiment 4:
(1) preparation of filler: a, aerobic room are the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm with the main component of inertia biologic packing material.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.B, anaerobic room filler are duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
(2) construct reactor: as shown in Figure 2, utilize glass reinforced plastic or steel or Steel Concrete to construct the containment structure of semitight, shell of reactor can be designed to circular or square, the diameter or the length of side can be determined according to water yield size, with metalling 2 space is divided into anaerobic room 1 and aerobic room 11 in the shell, aerobic room 11 has 3, wherein the filler of anaerobic room 1 is the duff filler, thickness is to change between the 800-1000mm, the depth of packing of aerobic room 11 can change between 400-600mm as required, quantity is determined as required, be generally 3, total height changes between 2000-2800mm, separates with metalling 2 between each chamber, so that collect the gas of anaerobic room 1 reaction generation and the good oxygen condition that keeps aerobic room 11.Airway 10 is positioned at the symmetry centre of reactor, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with three phase separation chamber 3 outward, 3 separation enter airway 10 by gas port to the gas that produces in the reactor through the three phase separation chamber, and aspirate with centrifugal blower in the exit of airway 10, and blower fan is controlled by the electric contact vacuum pressure gauge, keep the oxygen concn of each chamber in the reactor, the specification of airway 10 is determined by reactor diameter and air quantity size; Water inlet pipe 7 adopts the multitube water distribution, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Water outlet is collected by collecting chamber 6 and is discharged by rising pipe through trapped well, and water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and be back to water inlet pipe, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule by 30% reflux ratio.Below aerobic room 11, be provided with collecting chamber 6, be provided with metalling and supporting layer 5 between aerobic room 11 and the collecting chamber 6 successively.
Present embodiment utilizes the DN200 plastics tubing as cladding, makes the anaerobism of inertia biologic packing material layered arrangement, aerobic combined reactor.The depth of packing of anaerobic room 1 and 3 aerobic room is followed successively by 800,400,400,400mm, and total height is 2800mm; Separate with metalling 2 between chamber and the chamber, metalling 2 is also arranged at the bottom of the top of anaerobic room 1 and aerobic room 11, and the gas that anaerobic reaction produces is collected by outwards discharging of blower fan suction through rubble separate layer and the airway that is positioned at the reactor symmetry centre; The blower fan start-stop is by the tensimeter control (the setting vacuum values is 0-2kPa) energetically of electric contact vacuum; 4 pipe water distributions are adopted in water inlet, and water outlet is collected through collecting chamber and discharged by trapped well.
(3) technical process: as shown in Figure 1, septic tank effluent enters the reactor head water distributing pipe by water pump lifting behind the even water quality and quantity of equalizing tank, pass through each layer filler successively, is discharged by trapped well through the collecting chamber collection in the bottom; Water outlet refluxes in 30% ratio.
(4) processing condition and processing parameter: adopt the intermittent operation mode, sanitary sewage is (average water-quality COD after the even water quality of equalizing tank
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L) handle.Envrionment temperature is 23.5 ℃, and be one-period every day, flooding time 12 hours, and the time of doing that falls is 12 hours, the water inlet surface load is 2.0m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD
Cr＜70mg/L, NH
3-N＜5mg/L, TP＜1mg/L.
Embodiment 5:
(1) preparation of filler: a, aerobic room are the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm with the main component of inertia biologic packing material.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.B, anaerobic room filler are duff, and used coal is hard coal or brown coal.Utilize the trommel screen of 10mm to make the duff of required particle diameter during preparation.
(2) construct reactor: as shown in Figure 2, utilize glass reinforced plastic or steel or Steel Concrete to construct the containment structure of semitight, shell of reactor can be designed to circular or square, the diameter or the length of side can be determined according to water yield size, with metalling 2 space is divided into anaerobic room 1 and aerobic room 11 in the shell, aerobic room 11 has 3, wherein the filler of anaerobic room 1 is the duff filler, thickness is to change between the 800-1000mm, the depth of packing of aerobic room 11 can change between 400-600mm as required, quantity is determined as required, be generally 3, total height changes between 2000-2800mm, separates with metalling 2 between each chamber, so that collect the gas of anaerobic room 1 reaction generation and the good oxygen condition that keeps aerobic room 11.Airway 10 is positioned at the symmetry centre of reactor, extend the top from outer casing bottom, the body of airway is provided with gas port, gas port is coated with three phase separation chamber 3 outward, 3 separation enter airway 10 by gas port to the gas that produces in the reactor through the three phase separation chamber, and aspirate with centrifugal blower in the exit of airway 10, and blower fan is controlled by the electric contact vacuum pressure gauge, keep the oxygen concn of each chamber in the reactor, the specification of airway 10 is determined by reactor diameter and air quantity size; Water inlet pipe 7 adopts the multitube water distribution, and water inlet pipe is the water distributor that is cross, is provided with water outlet in four cross ends.Water outlet is collected by collecting chamber 6 and is discharged by rising pipe through trapped well, and water outlet is connected with trapped well, trapped well and water inlet pipe be provided with return line, on return line, be provided with reflux pump.Handle the back water outlet and be back to water inlet pipe, reducing the into impact load of water, and inoculate aerobic, anaerobism and double oxygen animalcule by 30% reflux ratio.Below aerobic room 11, be provided with collecting chamber 6, be provided with metalling and supporting layer 5 between aerobic room 11 and the collecting chamber 6 successively.
Present embodiment utilizes the DN200 plastics tubing as cladding, makes the anaerobism of inertia biologic packing material layered arrangement, aerobic combined reactor.The depth of packing of anaerobic room 1 and 3 aerobic room is followed successively by 800,400,400,400mm, and total height is 2800mm; Separate with metalling 2 between chamber and the chamber, metalling 2 is also arranged at the bottom of the top of anaerobic room 1 and aerobic room 11, and the gas that anaerobic reaction produces is collected by outwards discharging of blower fan suction through rubble separate layer and the airway that is positioned at the reactor symmetry centre; The blower fan start-stop is by the tensimeter control (the setting vacuum values is 0-2kPa) energetically of electric contact vacuum; 4 pipe water distributions are adopted in water inlet, and water outlet is collected through collecting chamber and discharged by trapped well.
(3) technical process: as shown in Figure 1, septic tank effluent enters the reactor head water distributing pipe by water pump lifting behind the even water quality and quantity of equalizing tank, pass through each layer filler successively, is discharged by trapped well through the collecting chamber collection in the bottom; Water outlet refluxes in 30% ratio.
(4) processing condition and processing parameter: adopt the intermittent operation mode, sanitary sewage is (average water-quality COD after the even water quality of equalizing tank
Cr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L) handle.Envrionment temperature is 25.0 ℃, and be one-period every day, flooding time 12 hours, and the time of doing that falls is 12 hours, the water inlet surface load is 2.0m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD
Cr＜70mg/L, NH
3-N＜5mg/L, TP＜1mg/L.
Claims (6)
1. distributed domestic sewage treatment reactor, it is characterized in that, mainly comprise shell, airway (10), anaerobic room (1), aerobic room (11), collecting chamber (6), water inlet pipe (7), cover top portion is provided with water inlet pipe (7), outer casing bottom is provided with water outlet (12), be divided into anaerobic room (1) with metalling successively from top to bottom in the shell, 1～4 aerobic room (11), have collecting chamber (6) in aerobic room (11), that part of shell of corresponding aerobic room (11) is provided with some air inlet ports (4), be provided with filler in anaerobic room (1) and the aerobic room (11), on the symmetrical center line of reactor, be provided with airway (10), water outlet (12) is connected with trapped well, trapped well and water inlet pipe (7) be provided with return line;
Filler in the anaerobic room is hard coal or the brown coal of particle diameter less than 10mm, and the filler in the aerobic room is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.
2. distributed domestic sewage treatment reactor as claimed in claim 1 is characterized in that the thickness of filler is 800～1000mm in the anaerobic room, and the thickness of filler is 400～600mm in the aerobic room, and aerobic room's total height is 2000～2800mm.
3. distributed domestic sewage treatment reactor as claimed in claim 1 is characterized in that, described water inlet pipe (7) for to be cross water distributor, is provided with water outlet in four cross ends.
4. distributed domestic sewage treatment reactor as claimed in claim 1 is characterized in that, the outlet of described airway (10) is provided with electric contact vacuum pressure gauge and centrifugal blower.
5. the method that distributed domestic sewage treatment reactor as claimed in claim 1 is disposed of sewage is characterized in that, may further comprise the steps:
The first step, septic tank are handled: sanitary sewage enters septic tank and removes bigger impurity, even after, the sanitary sewage water quality that goes out septic tank satisfies: CODCr＜600mg/L, NH
3-N＜60mg/L, TP＜10mg/L;
Second step, the sanitary sewage that goes out septic tank is by the water inlet pipe (7) of water pump lifting to reactor top, sewage uniformly distributing anaerobic room (1) of last layer to the reactor is carried out anaerobic reaction, and the sewage that anaerobic reaction is good enters following aerobic room (11) and carries out aerobic reaction; After collecting chamber (6) is collected the laggard trapped well of going into; This step adopts the intermittent operation mode, and be one-period every day, and flooding time 8-14 hour, the time of doing that falls was 10-14 hour, and the water inlet surface load is 1.5-2.0m
3/ (m
2D);
In the 3rd step, the water outlet that enters trapped well after second step handled enters water inlet pipe (7) in 10%～30% ratio through return line and refluxes, and the gas that produces in the whole process is discharged through airway (10).
6. the method that distributed domestic sewage treatment reactor as claimed in claim 6 is disposed of sewage is characterized in that, the multitube water distribution is adopted in water inlet.
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|---|---|---|---|
| CN2009100336878A CN101597121B (en) | 2009-06-25 | 2009-06-25 | Distributed domestic sewage treatment reactor and treatment method thereof |
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|---|---|---|---|
| CN2009100336878A CN101597121B (en) | 2009-06-25 | 2009-06-25 | Distributed domestic sewage treatment reactor and treatment method thereof |
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|---|---|
| CN101597121A CN101597121A (en) | 2009-12-09 |
| CN101597121B true CN101597121B (en) | 2011-05-18 |
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|---|---|---|---|---|
| CN101928097B (en) * | 2010-07-30 | 2012-05-02 | 嘉兴市环科环境工程有限公司 | Ecological community domestic sewage treatment system |
| CN102001788B (en) * | 2010-11-02 | 2012-08-22 | 无锡金鑫集团股份有限公司 | Combined application method for carrier units of fecal sewage biological treatment device |
| CN109542150B (en) * | 2018-12-03 | 2020-01-31 | 浙江清华长三角研究院 | Method for adjusting water inlet load of rural domestic sewage treatment facilities |
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