CN203319768U - Process control-based device for collecting N2O gas in SBR (Sequencing Batch Reactor) reaction process - Google Patents
Process control-based device for collecting N2O gas in SBR (Sequencing Batch Reactor) reaction process Download PDFInfo
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- CN203319768U CN203319768U CN2013200558998U CN201320055899U CN203319768U CN 203319768 U CN203319768 U CN 203319768U CN 2013200558998 U CN2013200558998 U CN 2013200558998U CN 201320055899 U CN201320055899 U CN 201320055899U CN 203319768 U CN203319768 U CN 203319768U
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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 utility model relates to a process control-based device for collecting an N2O gas in an SBR (Sequencing Batch Reactor) reaction process. A sewage treatment SBR comprises a reactor body (1), a sewage inlet pump (2), an aeration pump (3), a gas flow meter (4), a cementing sand core aeration head (5), a mechanical stirrer (6), a sewage sampling hole (12), a mud drain pipe (13), a sewage drain pipe (14), an emptying pipe (15) and a stirring paddle (17). A gas collecting system comprises a reactor sealing cover and a collecting pipeline. A single-pipeline collecting system and a two-pipeline collecting system are switched through switching an adjustable tee joint (22) and a switch auxiliary support. A constant-temperature control device comprises a temperature controller (7) and a heating rod (8). A pressure regulating and metering device comprises a pressure metering bottle (34), a scale mark (35), a pressure regulating liner (36), a pressure meter connector (37) and a pressure meter connecting hole (30). Compared with similar equipment, the process control-based device has the characteristics of stability in running, simple structure of required equipment, flexibility in operation and low cost.
Description
Technical field
The utility model relates to technique and the N of SBR method biological treatment
2The O gas collector, SBR technique and the device that especially can carry out denitrogenation and process control, be applicable to the biological treatment process of industrial sewage and Small Town Wastewater.
Background technology
Since 20 century 70s, worldwide body eutrophication problem is day by day appeared suddenly, biologic treating technique becomes the effective way that solves body eutrophication, but the gas produced in sewage treatment process, especially greenhouse gases (carbonic acid gas, methane and oxynitride) problem, be worth arousing attention.Wherein, carbonic acid gas is mainly produced under aerobic and anoxic condition by heterotrophic bacterium; Methane is mainly to produce in the anaerobic biological treatment process; And Nitrous Oxide mainly results from biological denitrification process.Carbonic acid gas, methane and Nitrous Oxide are to be subject at present the obvious three kinds of main greenhouse gas of the effect of human activity, although these gases account for less than 0.04% of atmosphere total amount, the increase of its concentration is the major reason that causes Global climate change.Up to the present, a large amount of Test And Research Works has been carried out to the Yuan Hehui of greenhouse gases in the whole world, but, due to the restriction of research method and study condition, some ecosystem is still lacked to careful, quantitative research.
The SBR method, be that a kind of structure formation is simple, operation scheme is flexible and changeable, mix fully on space, the biologic process for treating sewage of time coideal plug-flow.Tradition generally comprises five-stage a SBR cycle of operation of method, intakes, reacts, precipitation, draining and idle stage.The reaction times of SBR method is generally controlled by setting the set time.For reducing the energy expenditure of process operation, the control parameter that the reaction times of SBR method can be applicable to the line detection changes control accurately according to the water quality and quantity of raw waste water.Can further improve the processing efficiency of SBR method by the operation scheme that changes the SBR method simultaneously.
When SBR method treatment process is studied, to the N produced in biochemical reaction process
2O gas is collected and is detected, and especially the generation of greenhouse gases is studied, and not only has certain theory significance, and has important practical significance.The further optimization of sbr reactor device and improvement are to solve biochemical reaction process is produced to prerequisite and the basis that gas is analyzed.
The utility model content
The purpose of this utility model is, by a kind of SBR method reaction process N based on process control is provided
2The O gas collector, solve the problem that collection and confinement of gases process, SBR method sewage treatment process and online process control thereof are carried out simultaneously effectively.
The utility model is to adopt following technique means to realize:
SBR method reaction process N based on process control
2The O gas collector, this device comprises sewage disposal sbr reactor device, gas gathering system, thermostatically-controlled equipment, pressure adjusting measuring apparatus and on-line detecting system; Sewage disposal sbr reactor device is comprised of reactor 1, intake pump 2, aeration pump 3, gas meter 4, cementing core aeration head 5, mechanical stirrer 6, water sampling mouth 12, shore pipe 13, water shoot 14, blow-down pipe 15, stirring arm 17; Gas gathering system is comprised of reactor sealing cover and gas-collecting pipe road; The gas-collecting pipe route can be regulated threeway 22, drying tube 23, gas sampling bag 24, auxiliary Support gas gas cylinder 25, dividing potential drop table 26 composition; Conversion can be regulated threeway 22 and the auxiliary conversion of supporting to realize single-pipeline and dual circuit gathering system of switch; Thermostatically-controlled equipment is comprised of temperature regulator 7 and heating rod 8; Pressure is regulated measuring apparatus and is regulated courage 36, pressure warning unit Link Port 37 and pressure warning unit access port 30 and formed by pressure warning unit measuring bottle 34, scale sign 35, pressure; On-line detecting system is comprised of on-line sensor, determinator and data transmission line.
Aforesaid reactor sealing cover is comprised of air hatch, auxiliary support gas access port 20, collection and confinement of gases pipeline access port 21, ring flange 27, rubber cushion 28, nut 29, pressure warning unit access port 30, water seal outer sleeve 31, water seal inner sleeve 32 and inner sleeve sleeve post 33.
The utility model compared with prior art, has following obvious advantage and beneficial effect:
A kind of SBR method reaction process N based on process control of the utility model
2O gas collector and method, sewage treatment process and collection and confinement of gases process complete simultaneously.The piping system of collection and confinement of gases and pressure regulating system are not subject to the impact of SBR method operation scheme.Any operation scheme of SBR method all can be used this gathering system.With same category of device, compare, this device has stable, and required equipment is simple, flexible operation, cheap characteristics.The utility model can be widely used in the collection that various wastewater treatment process produce gas, is specially adapted to the sterile culture of laboratory scale sewage disposal and microorganism etc.
The accompanying drawing explanation
Fig. 1 is based on the SBR method reaction process N of process control
2O gas collector schematic diagram;
Fig. 2 is device top A-A sectional view;
Fig. 3 is device top B-B sectional view;
Fig. 4 is that pressure is regulated the metering setting drawing;
Fig. 5 is probe insert port vertical view on the real reaction device;
Fig. 6 is probe insert port sectional view;
Fig. 7 is probe connection cover orthographic plan;
Fig. 8 is the process operation schematic diagram.
In figure: the 1-reactor; The 2-intake pump; The 3-aeration pump; The 4-gas meter; The cementing core aeration head of 5-; The 6-mechanical stirrer; The 7-temperature regulator; The 8-heating rod; The 9-pH probe; The 10-DO probe; The 11-ORP probe; 12-water sampling mouth; The 13-shore pipe; The 14-water shoot; The 15-blow-down pipe; The 16-water seal; The 17-stirring arm; 18-pressure accommodometer; The 19-air hatch; The auxiliary gas access port of supporting of 20-; 21-collection and confinement of gases pipeline access port; 22-can regulate threeway; The 23-drying tube; The 24-gas sampling bag; 25-assists the Support gas gas cylinder; 26-dividing potential drop table; The 27-ring flange; The 28-rubber cushion; The 29-nut; 30-pressure warning unit access port b; 31-water seal outer sleeve; 32-water seal inner sleeve; 33-inner sleeve sleeve post; 34-pressure warning unit measuring bottle; The 35-scale indicates; 36-pressure is regulated courage; 37-pressure warning unit Link Port a; The 38-pH insert port of popping one's head in; The 39-DO insert port of popping one's head in; The 40-ORP insert port of popping one's head in; The 41-cushion rubber; The 42-probe.
Embodiment
Below in conjunction with Figure of description, embodiment of the present utility model is illustrated.To solve following problem by the present embodiment;
Referring to shown in Fig. 1, is the SBR method reaction process N based on process control
2O gas collector schematic diagram; As can be seen from the figure, this device comprises sewage disposal sbr reactor device, gas gathering system, thermostatically-controlled equipment, pressure adjusting measuring apparatus and on-line detecting system;
Sewage disposal sbr reactor device is comprised of reactor 1, intake pump 2, aeration pump 3, gas meter 4, cementing core aeration head 5, mechanical stirrer 6, water sampling mouth 12, shore pipe 13, water shoot 14, blow-down pipe 15, stirring arm 17;
Concrete mode of connection is: the cementing core aeration head 5(of reactor 1 bottom is at inside reactor) pass through gas meter 4 by aerating pipelines and be connected with aeration pump 3, gas meter and aeration pump are in the reactor outside; Reactor bottom is established blow-down pipe 15, sidewall arranges 12 3, water sampling mouth, 14 1, water shoot, 13 1 of shore pipes, in a side relative with water shoot with the water sampling pipe; For guaranteeing to mix, reactor is established agitator, and stirring rake 17 is at inside reactor, and above cementing core aeration head, agitator motor 6, in the outside of reactor, is arranged on reactor head; Intake pump, in the reactor outside, provides water source by suction culvert for reactor.
Gas gathering system is comprised of reactor sealing cover and gas-collecting pipe road;
Concrete mode of connection is as follows: air hatch 19 adopts the Jiao Gai sealing that can take off at any time replacing; Getting the gas process discharged in pore collects the threeway regulated 22 of pipeline, process drying tube 23 dryings, enters gas sampling bag 24; Adopt auxiliary Support gas gas cylinder 25, dividing potential drop table 26 to control the air pressure balance in reactor; Conversion can be regulated threeway 22 and the auxiliary conversion of supporting to realize single-pipeline and dual circuit gathering system of switch; When pipeline connects, should use inner wall smooth without adsorbing flexible pipe or steel pipe.
Thermostatically-controlled equipment is comprised of temperature regulator 7 and heating rod 8; Heating rod 8, in the inside of reactor, near sidewall of reactor, but does not contact sidewall, and temperature regulator 7 is in the reactor outside.
Pressure is regulated measuring apparatus and is regulated courage 36, pressure warning unit Link Port 37 and pressure warning unit access port 30 and formed by pressure warning unit measuring bottle 34, scale sign 35, pressure;
Concrete mode of connection is as Fig. 2,3,4, in reactor head, pressure warning unit access port 30 is set, is connected with pressure warning unit Link Port 37 by flexible pipe, pressure warning unit Link Port 37 bottoms are regulated courage with pressure and are connected, and be connected with pressure warning unit measuring bottle 34 by flexible pipe, pressure warning unit measuring bottle 34 is marked with scale and indicates 35.
On-line detecting system is comprised of on-line sensor, determinator and data transmission line.As the sidewall of Fig. 5 reactor sets gradually from top to bottom pH probe insert port 38, DO probe insert port 39, ORP probe insert port, inserts pH probe, DO probe 10, ORP probe 11 respectively, with pH value, dissolved oxygen and redox potential in the detection reaction process; As Fig. 6,7, establish cushion rubber 41 in probe inlet and make to pop one's head in 42 fixing.
As Fig. 2,3, the reactor sealing cover is in reactor head, by rubber cushion 28, with reactor, be connected, fixing by ring flange 27 and nut 29, reactor sealing cover top arranges air hatch, auxiliary gas access port 20, collection and confinement of gases pipeline access port 21, the pressure warning unit access port 30 supported; For guaranteeing stirrer seal, on the reactor sealing cover, water seal is set, water seal inner sleeve 32 is in water seal outer sleeve 31 inside, inner sleeve sleeve post 33 water seal inner sleeve 32 inside, fixedly stirring rakes.
Using the real life sewage of certain university dependents' district discharge as experimental subjects, and the process operation mode of SBR method is shown in Fig. 5.Selected sbr reactor device useful volume 15L, working volume 14L, in reactor, the COD concentration of mixed solution maintains 200～300mg/L, NH
4 +-N concentration is at 55～60mg/L, and sludge concentration initial in reactor is at 2200～2400mg.L-1, and aeration rate is constant in 100L/h, and mud maintains about 13d age, 29 ℃ of temperature of reaction.Additional carbon adopts sewage ethanol.The N mainly produced collecting gas
2O is measured.SBR method process operation and collection and confinement of gases process detailed process are as follows:
The water inlet application SBR method reaction process N based on process control provided by the utility model
2The O gas collector, at first open inlet valve, starts intake pump pending waste water is injected to the sbr reactor device, and setting flooding time by the process real-time control system is 3 minutes, and the flow of intake pump is 4L/min.After reaching flooding time, close intake pump and inlet valve, open thermostatically-controlled equipment.Enter aeration and gas collection phase, carry out on-line data acquisition simultaneously, the on-line parameter of measuring is pH, DO and ORP.The collection and confinement of gases pipeline adopts dual circuit.
Aerobic aeration is opened air intake valve, starts aeration pump, and aeration rate is constant in 100L/h, and uneven for preventing that muddy water from mixing, aeration is opened stirring simultaneously, and whole process is implemented to control by the process real-time control system.Collect at times gas therebetween, and gather the water determination water quality parameter.This stage is removed the organism in raw waste water, and ammonia nitrogen and organonitrogen are converted into to nitrite and nitrate, completes nitrification.After reaching aeration time, close aeration pump and intake valve, stop aeration and change that to collect gas circuit be single gas circuit, open the auxiliary gas of supporting, get rid of certain excess sludge, then system enters the anoxic section.
After anoxia stirring is closed aeration, add appropriate ethanol and carry out denitrification.Collect at times gas therebetween, and gather the water determination water quality parameter.After reaching churning time, close agitator, system enters precipitate phase.Stop collection and confinement of gases, the closing temperature controller.
Precipitation, draining and idle stage, in the quiescent setting stage, sedimentation time was 1 hour when agitating procedure finishes.After reaching setting-up time, open water discharging valve, enter bleeding stage, water discharge time is set as 10 minutes.Be 6 minutes idle mixing time.Next cycle starts.
Utilize SBR method biochemical reaction process gas collector, sanitary sewage finally processes that in water outlet, COD is less than 50mg/L, total nitrogen is less than 5mg/L, N
2O content accounts for into water TN amount 5%.
Claims (3)
1. the SBR method reaction process N based on process control
2The O gas collector, this device comprises sewage disposal sbr reactor device, gas gathering system, thermostatically-controlled equipment, pressure adjusting measuring apparatus and on-line detecting system; It is characterized in that: described sewage disposal sbr reactor device is comprised of reactor (1), intake pump (2), aeration pump (3), gas meter (4), cementing core aeration head (5), mechanical stirrer (6), water sampling mouth (12), shore pipe (13), water shoot (14), blow-down pipe (15), stirring arm (17);
Described gas gathering system is comprised of reactor sealing cover and gas-collecting pipe road; Described gas-collecting pipe route can be regulated threeway (22), drying tube (23), gas sampling bag (24), auxiliary Support gas gas cylinder (25), dividing potential drop table (26) composition;
Conversion can be regulated threeway (22) and the auxiliary conversion of supporting to realize single-pipeline and dual circuit gathering system of switch;
Thermostatically-controlled equipment is comprised of temperature regulator (7) and heating rod (8);
Described pressure is regulated measuring apparatus and is comprised of pressure warning unit measuring bottle (34), scale sign (35), pressure adjusting courage (36), pressure warning unit Link Port (37) and pressure warning unit access port (30);
Described on-line detecting system is comprised of on-line sensor, determinator and data transmission line; The sidewall of reactor sets gradually pH probe insert port (38), DO probe insert port (39), ORP probe insert port from top to bottom, insert pH probe (9), DO probe (10), ORP respectively pops one's head in (11), with pH value, dissolved oxygen and redox potential in the detection reaction process;
The cementing core aeration head (5) of reactor (1) bottom passes through gas meter (4) by aerating pipelines and is connected with aeration pump (3), and cementing core aeration head (5) is at inside reactor, and gas meter and aeration pump are in the reactor outside; Reactor bottom is established blow-down pipe (15), and sidewall arranges water sampling mouth (12), water shoot (14), shore pipe (13), and shore pipe (13) is in a side relative with water shoot with the water sampling mouth; Reactor is established agitator, and stirring rake (17) is at inside reactor, and above cementing core aeration head; Mechanical stirrer (6), in the outside of reactor, is arranged on reactor head and is connected with stirring rake; Intake pump (2) is in the reactor outside;
Get the gas that discharges in pore through the threeway regulated (22) of collection and confinement of gases pipeline, dry through drying tube (23), enter gas sampling bag (24); Adopt auxiliary Support gas gas cylinder (25), dividing potential drop table (26) to control the air pressure balance in reactor; Conversion can be regulated threeway (22) and the auxiliary conversion of supporting to realize single-pipeline and dual circuit gathering system of switch;
Heating rod (8), in the inside of reactor, near sidewall of reactor, but does not contact sidewall, and temperature regulator (7) is in the reactor outside;
In reactor head, pressure warning unit access port (30) is set, by flexible pipe, with pressure warning unit Link Port (37), be connected, pressure warning unit Link Port (37) bottom is regulated courage (36) with pressure and is connected, and be connected with pressure warning unit measuring bottle (34) by flexible pipe, pressure warning unit measuring bottle (34) is marked with scale and indicates (35).
2. a kind of SBR method reaction process N based on process control according to claim 1
2The O gas collector is characterized in that: described reactor sealing cover is comprised of air hatch (19), auxiliary support gas access port (20), collection and confinement of gases pipeline access port (21), ring flange (27), rubber cushion (28), nut (29), pressure warning unit access port (30), water seal outer sleeve (31), water seal inner sleeve (32) and inner sleeve sleeve post (33); The reactor sealing cover is in reactor head, by rubber cushion (28), with reactor, be connected, fixing by ring flange (27) and nut (29), reactor sealing cover top arranges air hatch, auxiliary gas access port (20), collection and confinement of gases pipeline access port (21), the pressure warning unit access port (30) supported; On the reactor sealing cover, water seal is set, water seal inner sleeve (32) is in water seal outer sleeve (31) inside, inner sleeve sleeve post (33) water seal inner sleeve (32) inside, fixedly stirring rake.
3. a kind of SBR method reaction process N based on process control according to claim 2
2The O gas collector is characterized in that: described air hatch (19) adopts the Jiao Gai sealing that can take off at any time replacing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200558998U CN203319768U (en) | 2013-01-31 | 2013-01-31 | Process control-based device for collecting N2O gas in SBR (Sequencing Batch Reactor) reaction process |
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| CN2013200558998U CN203319768U (en) | 2013-01-31 | 2013-01-31 | Process control-based device for collecting N2O gas in SBR (Sequencing Batch Reactor) reaction process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007235A (en) * | 2014-05-22 | 2014-08-27 | 河南师范大学 | Simulator for monitoring generation of nitrous oxide in process of aerobic biological treatment of sewage |
| CN104817157A (en) * | 2015-05-14 | 2015-08-05 | 四川润雅环境工程有限公司 | Chemical wastewater pretreatment method and sequencing-batch alkaline hydrolysis reactor |
| CN105776523A (en) * | 2016-05-04 | 2016-07-20 | 安徽工程大学 | Experimental apparatus for sewage treatment |
-
2013
- 2013-01-31 CN CN2013200558998U patent/CN203319768U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007235A (en) * | 2014-05-22 | 2014-08-27 | 河南师范大学 | Simulator for monitoring generation of nitrous oxide in process of aerobic biological treatment of sewage |
| CN104817157A (en) * | 2015-05-14 | 2015-08-05 | 四川润雅环境工程有限公司 | Chemical wastewater pretreatment method and sequencing-batch alkaline hydrolysis reactor |
| CN105776523A (en) * | 2016-05-04 | 2016-07-20 | 安徽工程大学 | Experimental apparatus for sewage treatment |
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Granted publication date: 20131204 Termination date: 20140131 |