CN109354341A - A kind of sewage denitrification and dephosphorization biological treatment system and its application - Google Patents
A kind of sewage denitrification and dephosphorization biological treatment system and its application Download PDFInfo
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- CN109354341A CN109354341A CN201811545933.3A CN201811545933A CN109354341A CN 109354341 A CN109354341 A CN 109354341A CN 201811545933 A CN201811545933 A CN 201811545933A CN 109354341 A CN109354341 A CN 109354341A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention belongs to technical field of sewage.The Nitrogen/Phosphorus Removal of traditional biological denitrification dephosphorization system is undesirable.For the problems of the prior art, the invention discloses a kind of sewage denitrification and dephosphorization biological treatment systems, including precipitating preprocessing module, anaerobism stirring module and basicity to add aerobic aeration module；Precipitating preprocessing module includes preformed precipitate room and the automatic medicine adding apparatus for adding medicament to preformed precipitate room, and grid and precipitating collecting tank are respectively equipped at the top and bottom of preformed precipitate room；It includes anaerobic room and blender that anaerobism, which stirs module,；It includes the interior aerobic room for setting basicity throwing device and aerator, return pipe and the pH on-line detector for monitoring aerobic room's water body pH that basicity, which adds aerobic aeration module,；Basicity throwing device includes several cordage, and cordage is equipped with the interior filling ball for being placed with modified mussel filler；The both ends of return pipe are connected with aerobic room's side wall and anaerobic room respectively.Present system is applied to good denitrogenation and dephosphorization effect when sewage treatment.
Description
Technical field
The present invention relates to a kind of biological treatment systems, and in particular to a kind of sewage denitrification and dephosphorization biological treatment system belongs to
In technical field of sewage.
Background technique
Since the 1970s, the water eutrophication of global range has become the water environment pollution to catch people's attention and asks
Topic.Although the mechanism that water eutrophication phenomenon occurs is complicated, the excessively high holophytic nutritions substance such as nitrogenous, phosphorus of water body institute is to lead
The direct inducement of generation eutrophication is caused, it is to solve the problems, such as water eutrophication that the nutritional substances such as control nitrogen, phosphorus, which enter water body,
Fundamental way, sewage denitrification and dephosphorization processing technique mainly includes bio-denitrifying sewage dephosphorization and two class of physical chemistry denitrogenation dephosphorizing
Method, wherein biological carbon and phosphorous removal is widely used due to becoming mainstream technology with practicability with preferable economy.
Current bio-denitrifying sewage dephosphorization technique is usually directly to add one in the water body of biological carbon and phosphorous removal system
Quantitative sodium carbonate or sodium bicarbonate, since oxidation 1g ammonia nitrogen every during nitration reaction needs to consume a large amount of alkali, with
The progress of reaction, the pH in water body can reduce rapidly.For the stability for maintaining biological carbon and phosphorous removal system to run, need not
Break and add sodium carbonate or sodium bicarbonate in water body, it is troublesome in poeration, and in reaction process pH fluctuation it is larger, dephosphorization efficiency compared with
Low, in addition, microorganism is more sensitive to pH, such basicity dosing method is unfavorable for the progress of nitration reaction, and denitrification effect is not yet
Enough ideals.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of sewage denitrification and dephosphorization biological treatment system and its answers
With to improve the Nitrogen/Phosphorus Removal to sewage.
To realize the above technical purpose, the technical scheme is that
A kind of sewage denitrification and dephosphorization biological treatment system, including precipitating preprocessing module, anaerobism stirring module and basicity
Add aerobic aeration module；The precipitating preprocessing module includes preformed precipitate room, grid, precipitating collecting tank and Automatic Dosing dress
It sets, the top of the preformed precipitate room is equipped with water inlet pipe, and water inlet pipe is equipped with inlet valve, and the top of preformed precipitate room is used equipped with several layers
It is equipped in the bottom of the grid of removal large-scale water surface floating material, preformed precipitate room for collecting the bulky grain wadding body deposited after flocculation
Collecting tank is precipitated, the automatic medicine adding apparatus is 45wt.%~70wt.%'s for adding medicament, medicament into preformed precipitate room
The confection of the polyacrylamide of polyaluminium chloride and 30wt.%~55wt.%, automatic medicine adding apparatus be located at grid and precipitating
Preformed precipitate pond side wall between collecting tank is connected；The anaerobism stirring module stirs mould for anti-nitration reaction, anaerobism to occur
Block includes anaerobic room and blender, and anaerobic room is connected by being located at first flow ports on anaerobic room top with preformed precipitate room；Institute
Stating basicity and adding aerobic aeration module includes aerobic room, return pipe and pH on-line detector；The aerobic room is aerobic by being located at
Second flow ports of room lower part are connected with anaerobic room, and basicity throwing device and aerator are equipped in aerobic room, and basicity adds
Device includes several cordage, several filling balls are equipped at intervals in cordage, and modified mussel is placed in each filling ball and is filled out
Material, aerator are located at aerobic room bottom；Aerobic room's side wall is equipped with discharge outlet, and discharge outlet is located at below return pipe, aerobic room bottom
Portion is equipped with sludge pipe, and sludge pipe is equipped with mud valve；Described return pipe one end is connected with aerobic room's side wall, the other end and anaerobism
Room is connected；The probe of the pH on-line detector is located in the water body of aerobic room, the pH for real-time monitoring aerobic room water body.
The configuration of the present invention is simple, it is anti-as the carrier of biomembrane and nitration reaction dephosphorization by placing modified mussel filler in filling ball
Biological high-efficiency denitrogenation dephosphorizing may be implemented in the alkalinity source answered, and improves the Nitrogen/Phosphorus Removal of system；By the way that return pipe is arranged,
The water body after aerobic room completes nitrification can be made to flow back into anaerobic room to carry out denitrification denitrification process and be again introduced into
Aerobic room's circulation, so as to further increase the Nitrogen/Phosphorus Removal of system.In addition, by setting precipitating preprocessing module,
Impurity, suspended matter and a small amount of P elements in water body can also be pre-processed, mitigate the subsequent processing pressure to water body.
Preferably, the grid is set as upper layer and lower layer, and the grid interval of lower layer's grid is less than the grid of upper layer grid
Interval.By the way that double-layer grating is arranged, the removal effect to the large-scale water surfaces floating material such as rubbish leaf can be enhanced.
Preferably, the filling ball is porous rotary spherical floating stuffing hollow sphere.The filler spherical structure of such setting is vertical
Body, large specific surface area, porosity is high, chemical and Biostatic performance is good, easy to be filmed, while having the effect of retention suspended matter concurrently.
Preferably, the aerator is aeration tube, and aeration tube is connected with air compressor air blower.
The application of above-mentioned sewage denitrification and dephosphorization biological treatment system, steps are as follows: (1) preformed precipitate handle: sewage pass through into
Water valve flows into preformed precipitate pond from water inlet pipe, and automatic medicine adding apparatus is by the polyaluminium chloride and 30wt.% of 45wt.%~70wt.%
The confection of the polyacrylamide of~55wt.% is put into preformed precipitate, through grid filtration removal large-scale water surface floating material
Sewage mixes in preformed precipitate pond with confection occurs flocculation reaction, so that the suspended matter and a small amount of P elements in sewage are formed
Wadding body is deposited in precipitating collecting tank, and precipitating collecting tank is periodically aspirated using slush pump and carries out dredging；(2) denitrification is handled: warp
It crosses preformed precipitate treated sewage and enter anaerobic room by the first flow ports, sodium acetate is periodically launched in anaerobic room as anti-nitre
The carbon source of change effect, nitrite nitrogen and nitrate nitrogen under the uniform stirring of blender, in the indoor denitrifying bacteria of anaerobism and sewage
Anti-nitration reaction occurs to remove the N element in water body；(3) nitrification and dephosphorization processing: logical by denitrification treated sewage
It crosses the second flow ports and enters aerobic room, the ammonia under the lasting aeration of aerator, in aerobic indoor nitrobacteria and sewage
Nitration reaction occurs for nitrogen, and the OH- in P elements and sewage in sewage, which reacts, to be generated Ca5 (PO4) 3OH and be deposited on water body
It is continuously replenished in water body and is disappeared by the interior filling ball for being placed with modified mussel filler in bottom, nitration reaction and dephosphorization reaction process
The basicity of consumption is so that the pH of aerobic indoor sewage is reacted with respect to being stably maintained in the suitable alkalinity ranges of nitrifying microorganisms
The pH value of sewage water body is observed by pH on-line detector real-time online in aerobic room in the process；(4) after nitrification processing
Sewage is back to anaerobic room progress denitrification denitrification process by return pipe and is again introduced into aerobic room's circulation, and aerobic room bottom is heavy
Long-pending sludge is periodically excluded by sludge pipe.
Preferably, the modified mussel filler is placed in Muffle furnace after being crushed by the fresh mussel shell that will be air-dried and carries out
High temperature is fumed to be obtained.
It is further preferred that spacing of each filling ball in cordage is 5~10cm, it is placed in each filling ball
5~8g is modified mussel filler.
It is further preferred that the sparse degree in each cordage between the number or each cordage of filling ball is according to good
The pH value variation of sewage water body is adjusted in oxygen room.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the filling ball in the present invention；
Appended drawing reference:
Specific embodiment
The specific embodiment that the present invention will be described in detail combined with Figure 1 and Figure 2, but claim of the invention is not done
Any restriction.
As depicted in figs. 1 and 2, a kind of sewage denitrification and dephosphorization biological treatment system, including precipitating preprocessing module, anaerobism
Stirring module and basicity add aerobic aeration module；
The precipitating preprocessing module includes preformed precipitate room 210, grid 220, precipitating collecting tank 230 and automatic medicine adding apparatus
240, the top of the preformed precipitate room 210 is equipped with water inlet pipe 100, and water inlet pipe 100 is equipped with inlet valve 110, preformed precipitate room 210
Top is equipped with two layers for removing the grid 220 of the large-scale water surfaces floating material such as rubbish leaf, wherein the grid interval of lower layer's grid
It can be 3mm less than the grid interval of upper layer grid, such as the grid interval of lower layer's grid, the grid interval of lower layer's grid can be
10mm, the bottom of preformed precipitate room 210 are equipped with the precipitating collecting tank 230 for collecting the bulky grain wadding body deposited after flocculation, precipitating
Collecting tank 230 is periodically aspirated using slush pump carries out dredging, and the automatic medicine adding apparatus 240 is received with positioned at grid 220 and precipitating
Preformed precipitate pond side wall between collection slot 230 is connected, and automatic medicine adding apparatus 240 is used to add medicament into preformed precipitate room 210,
Wherein, medicament can for 45wt.%~70wt.% polyaluminium chloride (making coagulant) and the wt.% of 30wt.%~55 poly- third
The mixing of acrylamide (making flocculation aid), the dosage of medicament are adjusted according to water quality；
For the anaerobism stirring module for anti-nitration reaction to occur, it includes anaerobic room 310 and blender that anaerobism, which stirs module,
320, anaerobic room 310 is connected by being located at first flow ports 311 on 310 top of anaerobic room with preformed precipitate room 210；In anaerobism
Carbon source of the sodium acetate as denitrification, under the uniform stirring of blender 320, anaerobic room 310 are periodically launched in room 310
Anti-nitration reaction occurs for nitrite nitrogen and nitrate nitrogen in interior denitrifying bacteria and sewage to remove the N element in water body；
The basicity add aerobic aeration module include aerobic room 410, return pipe 420 and pH on-line detector (in figure not
It shows)；The aerobic room 410 is connected by being located at the second flow ports 411 of 410 lower part of aerobic room with anaerobic room 310, good
Basicity throwing device and aerator 414 are equipped in oxygen room 410, basicity throwing device includes several cordage 412, cordage
Several filling balls 413 are equipped at intervals on 412, filling ball in the sparse degree or each cordage 412 between each cordage 412
413 number according in aerobic room sewage water body pH value variation is adjusted, the spacing between each filling ball 413 be 5~
10cm, wherein filling ball 413 is porous rotary spherical floating stuffing hollow sphere, is placed with 5~8g in each filling ball 413 and changes
Property mussel filler, modified mussel filler is placed in Muffle furnace that carry out high temperature fumed after crushing by the fresh mussel shell that will be air-dried
It obtains, the main component of modified mussel filler is calcium oxide, and calcium oxide enters water body, and can generate calcium hydroxide releases OH- later
To promote the basicity of water body, aerator 414 is located at 410 bottom of aerobic room and is connected with air compressor air blower, wherein
Aerator 414 can be aeration tube；410 side wall of aerobic room is equipped with discharge outlet 415, and discharge outlet 415 is located under return pipe 420
Side, 410 bottom of aerobic room are equipped with sludge pipe 416, and sludge pipe 416 is equipped with mud valve；Described return pipe one end and aerobic room side
Wall is connected, and the other end is connected with anaerobic room；The probe of the pH on-line detector is located in the water body of aerobic room, for real
When monitor aerobic room's water body pH.
The application of above-mentioned sewage denitrification and dephosphorization biological treatment system, steps are as follows: (1) preformed precipitate handle: sewage pass through into
Water valve flows into preformed precipitate pond from water inlet pipe, and automatic medicine adding apparatus is by the polyaluminium chloride and 30wt.% of 45wt.%~70wt.%
The confection of the polyacrylamide of~55wt.% is put into preformed precipitate, through grid filtration removal large-scale water surface floating material
Sewage mixes in preformed precipitate pond with confection occurs flocculation reaction, so that the suspended matter and a small amount of P elements in sewage are formed
Wadding body is deposited in precipitating collecting tank, and precipitating collecting tank is periodically aspirated using slush pump and carries out dredging；(2) denitrification is handled: warp
It crosses preformed precipitate treated sewage and enter anaerobic room by the first flow ports, sodium acetate is periodically launched in anaerobic room as anti-nitre
The carbon source of change effect, nitrite nitrogen and nitrate nitrogen under the uniform stirring of blender, in the indoor denitrifying bacteria of anaerobism and sewage
Anti-nitration reaction occurs to remove the N element in water body；(3) nitrification and dephosphorization processing: logical by denitrification treated sewage
It crosses the second flow ports and enters aerobic room, the ammonia under the lasting aeration of aerator, in aerobic indoor nitrobacteria and sewage
Nitration reaction, the OH in P elements and sewage in sewage occur for nitrogen-It reacts and generates Ca5(PO4)3OH is deposited on water body bottom
It is continuously replenished in water body and is consumed by the interior filling ball for being placed with modified mussel filler in portion, nitration reaction and dephosphorization reaction process
Basicity so that the pH of aerobic indoor sewage is opposite is stably maintained in the suitable alkalinity ranges of nitrifying microorganisms, reacted
The pH value of sewage water body is observed by pH on-line detector real-time online in Cheng Zhong aerobic room；(4) dirt after nitrification processing
Water is back to anaerobic room progress denitrification denitrification process by return pipe and is again introduced into aerobic room's circulation, aerobic room's bottom deposit
Sludge periodically excluded by sludge pipe.
In conclusion the invention has the following advantages that
1. the configuration of the present invention is simple, by placing carrier and nitrification of the modified mussel filler as biomembrane in filling ball
Biological high-efficiency denitrogenation dephosphorizing may be implemented in the alkalinity source of reaction, improves the Nitrogen/Phosphorus Removal of system；Wherein, it on the one hand fills out
Pellet and mussel filler can realize the biofilm of microorganism, on the other hand, modified mussel filler by huge specific surface area
Main component is calcium oxide, and calcium oxide, which enters after water body, can generate the calcium hydroxide of microsolubility and slowly release OH-To high
Effect enduringly promotes the basicity of water body, makes the pH of water body is opposite to be stably maintained in the suitable alkalinity ranges of nitrifying microorganisms,
To improve the efficiencies of nitrogen removal of microorganism；In addition, the P elements in water body have HPO4 2-、 H2PO4-And PO4 3-Three kinds of existence forms,
By modified mussel filler promoted basicity add the basicity in aerobic aeration module be conducive to P elements in water body mainly with
PO4 3-Form exists, and and OH-It reacts and generates Ca5(PO4)3OH precipitating is deposited on so that P elements be made to be detached from water body environment
The bottom, to improve the removal effect to P element in water body.
2. the present invention by setting return pipe, can make the water body after aerobic room completes nitrification flow back into anaerobism
Room carries out denitrification denitrification process and is again introduced into aerobic room's circulation, so as to further increase the denitrogenation dephosphorizing effect of system
Fruit.
3. the present invention by setting pH on-line detector can in aerobic room water body pH value carry out real-time online observation,
The sparse degree between the number or each cordage of filling ball in every cordage is adjusted by the pH value variation of water body
Section is so as to realize the control accurate to water body pH.
4. filling ball is arranged to porous rotary spherical floating stuffing hollow sphere by the present invention, it may make that filler spherical structure is vertical
Body, large specific surface area, porosity is high, chemical and Biostatic performance is good, easy to be filmed, while having the effect of retention suspended matter concurrently.
5. the present invention, can also be to impurity, suspended matter and a small amount of phosphorus member in water body by setting precipitating preprocessing module
Element is pre-processed, and the subsequent processing pressure to water body is mitigated.Grid interval by the way that grid to be arranged to lower layer's grid is less than
The structure of upper layer grid can be enhanced precipitating preprocessing module to the removal effect of the large-scale water surfaces floating material such as rubbish leaf, lead to
The confection that dosing coagulant and flocculation aid are used cooperatively is crossed, the flocculating effect of contaminant particle in water body is can be improved, makes
The colloidal solid for being difficult to precipitate in water body is obtained to be easy to mutually polymerize and then precipitate.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of sewage denitrification and dephosphorization biological treatment system, which is characterized in that stir mould including precipitating preprocessing module, anaerobism
Block and basicity add aerobic aeration module；The precipitating preprocessing module includes preformed precipitate room, grid, precipitating collecting tank and automatic
Chemicals dosing plant, the top of the preformed precipitate room are equipped with water inlet pipe, and water inlet pipe is equipped with inlet valve, if the top of preformed precipitate room is equipped with
Dried layer is used to remove the grid of large-scale water surface floating material, and the bottom of preformed precipitate room is equipped with for collecting the bulky grain deposited after flocculation
The precipitating collecting tank of wadding body, the automatic medicine adding apparatus for adding medicament into preformed precipitate room, medicament be 45wt.%~
The confection of the polyacrylamide of the polyaluminium chloride and 30wt.%~55wt.% of 70wt.%, automatic medicine adding apparatus be located at
Preformed precipitate pond side wall between grid and precipitating collecting tank is connected；The anaerobism stirring module is used to that anti-nitration reaction to occur,
Anaerobism stirring module includes anaerobic room and blender, and anaerobic room is by being located at the first flow ports and the preformed precipitate room on anaerobic room top
It is connected；It includes aerobic room, return pipe and pH on-line detector that the basicity, which adds aerobic aeration module,；The aerobic room passes through
The second flow ports positioned at aerobic room lower part are connected with anaerobic room, and basicity throwing device and aerator are equipped in aerobic room,
Basicity throwing device includes several cordage, several filling balls are equipped at intervals in cordage, is placed with and changes in each filling ball
Property mussel filler, aerator are located at aerobic room bottom；Aerobic room's side wall is equipped with discharge outlet, and discharge outlet is located at below return pipe,
Aerobic room bottom is equipped with sludge pipe, and sludge pipe is equipped with mud valve；Described return pipe one end is connected with aerobic room's side wall, another
End is connected with anaerobic room；The probe of the pH on-line detector is located in the water body of aerobic room, is used for real-time monitoring aerobic room
The pH of water body.
2. sewage denitrification and dephosphorization biological treatment system as described in claim 1, which is characterized in that the grid is set as
It is two layers lower, and the grid interval of lower layer's grid is less than the grid interval of upper layer grid.
3. sewage denitrification and dephosphorization biological treatment system as described in claim 1, which is characterized in that the filling ball is porous
Rotary spherical floating stuffing hollow sphere.
4. sewage denitrification and dephosphorization biological treatment system as described in claim 1, which is characterized in that the aerator is to expose
Tracheae, aeration tube are connected with air compressor air blower.
5. the application of the sewage denitrification and dephosphorization biological treatment system as described in Claims 1 to 4 is any, which is characterized in that step
Rapid as follows: (1) preformed precipitate is handled: sewage is through inlet valve from water inlet pipe inflow preformed precipitate pond, and automatic medicine adding apparatus is by 45wt.%
The confection of the polyacrylamide of the polyaluminium chloride and 30wt.%~55wt.% of~70wt.% is put into preformed precipitate, warp
The sewage of grid filtration removal large-scale water surface floating material mixes in preformed precipitate pond with confection occurs flocculation reaction, so that dirty
Suspended matter and a small amount of P elements in water form wadding body and are deposited in precipitating collecting tank, and precipitating collecting tank is periodically taken out using slush pump
Inspiration row dredging；(2) denitrification is handled: being entered anaerobic room by the first flow ports by preformed precipitate treated sewage, is being detested
Carbon source of the sodium acetate as denitrification is periodically launched in oxygen room, under the uniform stirring of blender, the indoor anti-nitre of anaerobism
Anti-nitration reaction occurs for the nitrite nitrogen and nitrate nitrogen changed in bacterium and sewage to remove the N element in water body；(3) nitrification and dephosphorization at
Reason: entering aerobic room by the second flow ports by denitrification treated sewage, aerobic under the lasting aeration of aerator
Nitration reaction, the OH in P elements and sewage in sewage occur for the ammonia nitrogen in indoor nitrobacteria and sewage-It reacts
Generate Ca5(PO4)3OH is deposited on water bottom, is placed with modified mussel filler in nitration reaction and dephosphorization reaction process
Filling ball the basicity consumed in water body is continuously replenished so that the pH of aerobic indoor sewage opposite to be stably maintained at nitrification micro-
In the suitable alkalinity ranges of biology, the pH value of sewage water body passes through pH on-line detector real-time online in aerobic room in reaction process
Observation；(4) sewage after nitrification processing by return pipe be back to anaerobic room carry out denitrification denitrification process and again into
Enter aerobic room's circulation, the sludge of aerobic room's bottom deposit is periodically excluded by sludge pipe.
6. the application of sewage denitrification and dephosphorization biological treatment system as claimed in claim 5, which is characterized in that the modification is made a gift of
Shellfish filler by will the fresh mussel shell that air-dry crush after be placed in Muffle furnace and carry out that high temperature is fumed to be obtained.
7. the application of sewage denitrification and dephosphorization biological treatment system as claimed in claim 6, which is characterized in that each filler
Spacing of the ball in cordage is 5~10cm, and the modified mussel filler of 5~8g is placed in each filling ball.
8. the application of sewage denitrification and dephosphorization biological treatment system as claimed in claim 7, which is characterized in that each fiber
Sparse degree on rope between the number of filling ball or each cordage changes according to the pH value of sewage water body in aerobic room to be carried out
It adjusts.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316906A (en) * | 2019-06-21 | 2019-10-11 | 广西博世科环保科技股份有限公司 | A kind of rural domestic sewage treatment equipment |
| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
| CN113321356A (en) * | 2021-06-15 | 2021-08-31 | 武汉永清环保科技工程有限公司 | Automatic monitoring and dosing sewage treatment process for lake fixed sewage treatment plant |
| CN117819721A (en) * | 2024-01-17 | 2024-04-05 | 福州市规划设计研究院集团有限公司 | Sewage treatment process combining compound diatomite and ICEAS process |
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| CN110713256A (en) * | 2019-10-14 | 2020-01-21 | 上海理工大学 | Biological pipe culvert reaction unit |
| CN113321356A (en) * | 2021-06-15 | 2021-08-31 | 武汉永清环保科技工程有限公司 | Automatic monitoring and dosing sewage treatment process for lake fixed sewage treatment plant |
| CN117819721A (en) * | 2024-01-17 | 2024-04-05 | 福州市规划设计研究院集团有限公司 | Sewage treatment process combining compound diatomite and ICEAS process |
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