CN111453842A - Vertical high-concentration ammonia nitrogen wastewater treatment equipment - Google Patents

Vertical high-concentration ammonia nitrogen wastewater treatment equipment Download PDF

Info

Publication number
CN111453842A
CN111453842A CN202010264875.8A CN202010264875A CN111453842A CN 111453842 A CN111453842 A CN 111453842A CN 202010264875 A CN202010264875 A CN 202010264875A CN 111453842 A CN111453842 A CN 111453842A
Authority
CN
China
Prior art keywords
nitrification
short
reaction section
aeration pipe
ultrafiltration membrane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010264875.8A
Other languages
Chinese (zh)
Inventor
陈泽枝
林春明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Zhongmeng Environmental Protection Technology Co ltd
Original Assignee
Fujian Zhongmeng Environmental Protection Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian Zhongmeng Environmental Protection Technology Co ltd filed Critical Fujian Zhongmeng Environmental Protection Technology Co ltd
Priority to CN202010264875.8A priority Critical patent/CN111453842A/en
Publication of CN111453842A publication Critical patent/CN111453842A/en
Priority to PCT/CN2021/073650 priority patent/WO2021203800A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
    • 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
    • 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
    • C02F2101/163—Nitrates
    • 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
    • C02F2101/166—Nitrites
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections

Abstract

The invention provides vertical high-concentration ammonia nitrogen wastewater treatment equipment, and particularly relates to the technical field of wastewater treatment, which comprises a vertical reaction tank, an anaerobic ammonia oxidation reaction section, a denitrification reaction section, a short-cut nitrification reaction section, a water inlet pump and a short-cut nitrification liquid reflux pump, wherein the anaerobic ammonia oxidation reaction section is sequentially arranged in the vertical reaction tank from bottom to top and comprises a bottom uniform water distribution device arranged at the bottom of the vertical reaction tank and an anaerobic ammonia oxidation filler arranged on the bottom uniform water distribution device and abutted against the bottom uniform water distribution device; the short-cut nitrification reaction section comprises a short-cut nitrification aeration pipe arranged on the denitrification reaction section and a short-cut nitrification filler arranged on the short-cut nitrification aeration pipe, and the nitrification reaction section comprises a middle uniform water receiving device, a nitrification aeration pipe and an aerobic nitrification filler which are arranged from bottom to top. The invention adopts the integrated vertical reactor, reduces reaction units, also reduces the occupied area, can shorten reaction steps and reduces the volume of the reaction tank.

Description

Vertical high-concentration ammonia nitrogen wastewater treatment equipment
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to vertical high-concentration ammonia nitrogen wastewater treatment equipment.
Background
The high-concentration ammonia nitrogen wastewater treatment generally adopts biological denitrification treatment, the current traditional biological denitrification process is a biological nitrification and denitrification method, and the mechanism is as follows: in the presence of oxygenUnder the condition that nitrite bacteria react with NH4 +Nitrifying into nitrite, and nitrifying the nitrite into nitrate by the nitrate bacteria; then, under the anoxic condition, the denitrifying bacteria reduce the nitrate or nitrite produced in the nitration process into nitrogen. The specific reaction chemical formula is as follows:
nitration reaction: 2NH4 ++3O2→2NO2 -+4H++2H2O；2NO2 -+O2→2NO3 -
And (3) denitrification reaction: 6NO3 -+2CH3OH→6NO2 -+2CO2+4H2O
6NO2 -+3CH3OH→3N2+3CO2+3H2O+6OH-
In the patent with publication number CN106186501A, a high-concentration ammonia nitrogen wastewater treatment system and a treatment method are disclosed, the treatment system comprises: a pretreatment adjusting unit: receiving high-concentration ammonia nitrogen wastewater, and adjusting the pH value of the high-concentration ammonia nitrogen wastewater to be alkaline; a triple effect evaporation unit: evaporating the alkalized high-concentration ammonia nitrogen wastewater into desalted high-concentration ammonia-containing wastewater and low-ammonia nitrogen high-salt wastewater; a rectification ammonia distillation unit: rectifying and distilling the desalted high-concentration ammonia-containing wastewater to generate ammonia water and biochemically treated tail water with low ammonia nitrogen; film scraper evaporation unit: evaporating the low ammonia nitrogen high-salinity wastewater into low ammonia nitrogen biochemically-processable tail water and high-concentration brine. By utilizing the wastewater treatment system, after high-concentration ammonia nitrogen wastewater is subjected to high-efficiency evaporation, rectification deamination and scraper film evaporation desalting, the ammonia recovery efficiency reaches over 95 percent, ammonia water can be effectively recovered, the economic benefit is increased, and inorganic salt components in the wastewater are removed. And by adopting the high-efficiency evaporation device, the heat energy is effectively saved, and the utilization efficiency of the energy is improved. However, each processing unit is independent, so that a large area is occupied during production, and land waste is caused.
Because the traditional biological denitrification adopts a nitrification-denitrification method, a carbon source is needed in the treatment process, the ratio of the carbon source to nitrogen (namely C/N) is more than 3, if the carbon source in the wastewater is insufficient, the carbon source needs to be added additionally, extra cost needs to be added, and the production and purification cost is increased. Biological denitrification adopts split type process to handle, leads to the processing unit more, and area is big, still need set up the device that is used for the sediment alone sometimes, leads to purifier's structure complicated, and the size is huge.
Disclosure of Invention
In view of the above, the invention provides a vertical high-concentration ammonia nitrogen wastewater treatment device, which is combined by adopting a vertical integrated structure, can save 75% of the occupied area, and simultaneously, the vertical structure realizes the purification of the water to be purified from bottom to top, and simultaneously, a built-in ultrafiltration membrane is used for replacing a sedimentation tank for sludge-water separation.
The invention relates to vertical high-concentration ammonia nitrogen wastewater treatment equipment which comprises a vertical reaction tank, an anaerobic ammonia oxidation reaction section, a denitrification reaction section, a short-cut nitrification reaction section and a nitrification reaction section which are sequentially arranged in the vertical reaction tank from bottom to top, a water inlet pump, and a short-cut nitrification liquid reflux pump, wherein one end of the short-cut nitrification liquid reflux pump is communicated with the water inlet pump, the other end of the short-cut nitrification liquid reflux pump is communicated with the bottom of the vertical reaction tank, and the anaerobic ammonia oxidation reaction section comprises a bottom uniform water distribution device arranged at the bottom of the vertical reaction tank and an anaerobic ammonia oxidation filler which is arranged on the bottom uniform water distribution device and is abutted. The denitrification reaction section comprises a middle uniform water distribution device and a denitrification filler, wherein the middle uniform water distribution device is abutted to the anaerobic ammonia oxidation filler. The short-cut nitrification reaction section comprises a short-cut nitrification aeration pipe arranged on the denitrification reaction section and a short-cut nitrification filler arranged on the short-cut nitrification aeration pipe, the nitrification reaction section comprises a middle uniform water receiving device, a nitrification aeration pipe and an aerobic nitrification filler which are arranged from bottom to top, the middle uniform water receiving device is communicated with the short-cut nitrification liquid reflux pump, and the nitrification reaction section is communicated with the ultrafiltration membrane tank.
The denitrification reaction section comprises a middle uniform water distribution device and a denitrification filler, wherein the middle uniform water distribution device is abutted to the anaerobic ammonia oxidation filler. The short-cut nitrification aeration pipe and the nitrification aeration pipe are communicated with the ultrafiltration membrane tank, a built-in ultrafiltration membrane group is arranged in the ultrafiltration membrane tank, and an ultrafiltration membrane scrubbing aeration pipe is arranged at the bottom of the ultrafiltration membrane group. The ultrafiltration membrane scrubbing aeration pipe is communicated with the short-cut nitrification aeration pipe and the nitrification aeration pipe. And the air blower is communicated with the ultrafiltration membrane scrubbing aeration pipe, the short-distance nitrification aeration pipe and the nitrification aeration pipe. And the sludge reflux pump is communicated with the middle uniform water distribution device at one end and the bottom of the ultrafiltration membrane tank at the other end. The spray nozzle of the short-distance nitrification aeration pipe is triangular.
The anaerobic ammoxidation reaction section is provided with a uniform water distribution device and an anaerobic ammoxidation filler, anaerobic ammoxidation bacteria adhere and grow on the anaerobic ammoxidation filler, ammonia nitrogen in inlet water and nitrite returning from the shortcut nitrification reaction section react under the action of anaerobic ammoxidation bacteria to generate nitrogen and nitrate, the denitrification reaction section is provided with a uniform water distribution device and a denitrification filler, denitrification bacteria adhere and grow on the denitrification bacteria filler, sludge-water mixture returning from an ultrafiltration membrane tank contains a large amount of denitrification bacteria and nitrate, the returning nitrate and the nitrate generated by the anaerobic ammoxidation reaction section are denitrified into nitrogen by the denitrification bacteria in the denitrification reaction section, the shortcut nitrification reaction section is provided with the shortcut nitrification filler, a shortcut nitrification aeration pipe and a uniform water collecting device, the nitrite is kept in a micro-nitrification reaction state in the shortcut nitrification reaction section, DO is controlled in a range of 0.7-1.0 mg/L, the nitrite is further inhibited in the aerobic denitrification reaction section by the anaerobic denitrification filler, the anaerobic denitrification aeration pipe and the uniform nitrification aeration pipe, the anaerobic denitrification aeration pipe is used for removing the nitrite in the shortcut nitrification reaction section, and the nitrite, and the anaerobic denitrification aeration pipe is used for aerobic denitrification reaction, and the anaerobic denitrification reaction section is further controlled by the anaerobic denitrification aeration pipe for removing the nitrite and the residual nitrite in the anaerobic denitrification reaction, the anaerobic denitrification reactor, the nitrite is controlled by the anaerobic denitrification reactor, the anaerobic denitrification reactor is controlled by the anaerobic denitrification reactor, the anaerobic denitrification reactor.
The blower and the blower pipeline provide air for the short distance nitration section and the nitration section of the vertical reaction tank for aeration, provide air for the ultrafiltration membrane group for scrubbing, and ensure the flux of the membrane.
The invention adopts an integrated vertical reactor, combines the short-cut nitrification, anaerobic ammonium oxidation and the traditional nitrification and denitrification reactor in an integrated vertical way, reduces reaction units, simplifies the process, reduces the occupied area, shortens the reaction steps, reduces the volume of a reaction tank, and simultaneously reduces oxygen supply, an external carbon source and alkalinity by utilizing the synergistic action of nitrosobacteria and anaerobic ammonium oxidation bacteria.
Drawings
FIG. 1 is a structural diagram of a vertical high-concentration ammonia-nitrogen wastewater treatment device provided in an embodiment of the invention.
Wherein: 1. a water inlet pipe of a water inlet pump; 2. a water inlet pump; 3. a water outlet pipe of the water inlet pump; 4. a water inlet pipe of a short-cut nitrifying liquid reflux pump; 5. a short-cut nitrifying liquid reflux pump; 6. a short-cut nitrifying liquid reflux flowmeter; 7. a water outlet pipe of the short-cut nitrifying liquid reflux pump; 8. a vertical reaction tank; 9. the bottom is provided with a water distribution device; 10. anaerobic ammonium oxidation filler; 11. the middle part is provided with a water distribution device; 12. a denitrification filler; 13. a short-cut nitrification aeration pipe; 14. short-cut nitrifying filler; 15. a middle uniform water collecting device; 16. a short-cut nitrifying liquid reflux pipe; 17. a nitrification aeration pipe; 18. aerobic nitrification filler; 19. an aerobic nitrification water outlet pipe; 20. an ultrafiltration membrane tank; 21. scrubbing the aeration pipe by using an ultrafiltration membrane; 22. an ultrafiltration membrane group; 23. a membrane scrubbing air inlet pipe; 24. a water outlet pipe of the ultrafiltration membrane group; 25. an ultrafiltration membrane water outlet header pipe; 26. an ultrafiltration membrane water outlet pump; 27. an outlet pipe of the ultrafiltration membrane water outlet pump; 28. a water inlet pipe of a sludge reflux pump; 29. a sludge reflux pump; 30. a sludge reflux flowmeter; 31. a water outlet pipe of the sludge reflux pump; 32. a blower; 33. an aeration main pipe; 34. a short-cut nitrification air inlet pipe; 35. nitrifying an air inlet pipe; 36. a surplus sludge discharge pipe; 37. and (4) emptying the vertical reaction tank.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
Referring to fig. 1, the vertical high-concentration ammonia-nitrogen wastewater treatment equipment comprises a vertical reaction tank 8, an anammox reaction section, a denitrification reaction section, a short-cut nitrification reaction section and a nitrification reaction section which are sequentially arranged in the vertical reaction tank 8 from bottom to top, a water inlet pump 2, a short-cut nitrification liquid reflux pump 5 with one end communicated with the water inlet pump 2 and the other end communicated with the bottom of the vertical reaction tank 8, wherein the anammox reaction section comprises a bottom uniform water distribution device 9 arranged at the bottom of the vertical reaction tank 8 and an anammox filler 10 arranged on the bottom uniform water distribution device 9 and abutted against the bottom uniform water distribution device, the short-cut nitrification reaction section comprises a short-cut nitrification aeration pipe 13 arranged on the denitrification reaction section and a short-cut nitrification filler 14 arranged on the short-cut nitrification aeration pipe 13, and the nitrification reaction section comprises a middle uniform water collection device 15, a short-cut nitrification filler 14 arranged from bottom to top, A nitrification aeration pipe 17 and an aerobic nitrification filler 18, wherein the middle uniform water collecting device 15 is communicated with the short-cut nitrification liquid reflux pump 5, and the nitrification reaction section is communicated with an ultrafiltration membrane tank 20. The denitrification reaction section comprises a middle uniform water distribution device 11 and a denitrification filler 12 which are abutted with the anaerobic ammonia oxidation filler 10.
The short-cut nitrification aeration pipe 13 and the nitrification aeration pipe 17 are communicated with the ultrafiltration membrane tank 20, a built-in ultrafiltration membrane group 22 is arranged in the ultrafiltration membrane tank 20, and an ultrafiltration membrane scrubbing aeration pipe 21 is arranged at the bottom of the ultrafiltration membrane group 22. The ultrafiltration membrane scrubbing aeration pipe 21 is communicated with the short-cut nitrification aeration pipe 13 and the nitrification aeration pipe 17. And the air blower is communicated with the ultrafiltration membrane scrubbing aeration pipe 21, the short-distance nitrification aeration pipe 13 and the nitrification aeration pipe 17. And the sludge reflux pump 29 is communicated with the middle uniform water distribution device 11 at one end and the bottom of the ultrafiltration membrane pool 20 at the other end.
The specific connection mode is as follows: the water inlet pipe 1 of the water inlet pump is connected with the water inlet of the water inlet pump 2, one end of the water outlet pipe 3 of the water inlet pump is connected with the water outlet of the water inlet pump 2, and the other end of the water outlet pipe of the water inlet pump is connected with the water inlet pipe 4 of the shortcut nitrification liquid reflux pump. One end of a water inlet pipe 4 of the shortcut nitrification liquid reflux pump is connected with a water outlet pipe 3 of the water pump, and the other end of the water inlet pipe is connected with a water inlet of a shortcut nitrification liquid reflux pump 5. One end of a water outlet pipe 7 of the short-cut nitrifying liquid reflux pump is connected with a water outlet of the short-cut nitrifying liquid reflux pump 5, and the other end of the water outlet pipe is connected with a bottom uniform water distribution device 9 arranged at the bottom of the vertical reaction tank 8. The short-cut nitrifying liquid reflux flowmeter 6 is arranged on a water outlet pipe 7 of the short-cut nitrifying liquid reflux pump. The anaerobic ammonia oxidation filler 10 is arranged on the bottom uniform water distribution device 9. The middle uniform water distribution device 11 is arranged above the anaerobic ammonia oxidation filler 10. The short-cut nitrification aeration pipe 13 is arranged above the denitrification filler 12. The short-cut nitrification filler 14 is arranged above the short-cut nitrification aeration pipe 13. The middle uniform water collecting device 15 is arranged above the short-distance nitrifying filler 14. One end of a short-cut nitrifying liquid reflux pipe 16 is connected with the middle uniform water collecting device 15, and the other end is connected with a water inlet pipe 4 of a short-cut nitrifying liquid reflux pump. The nitrification aeration pipe 17 is arranged above the middle uniform water collecting device 15. The aerobic nitrification filler 18 is arranged above the nitrification aeration pipe 17. One end of the aerobic nitrification water outlet pipe 19 is connected with the water outlet of the vertical reaction tank 8, and the other end is connected with the ultrafiltration membrane tank 20. The built-in ultrafiltration membrane group 22 is arranged in the ultrafiltration membrane pool 20, and the ultrafiltration membrane scrubbing aeration pipe 21 is arranged at the bottom of the built-in ultrafiltration membrane group 22. The blower 32 carries out micro-aeration on the sludge-water mixture in the short-cut nitrification reaction section through the aeration main pipe 33, the short-cut nitrification air inlet pipe 34 and the short-cut nitrification aeration pipe 13 by air, so that ammonia nitrogen in the wastewater is nitrified into nitrite under the action of nitrosobacteria. The blower 32 fully aerates the mud-water mixture in the nitrification reaction section through the aeration main pipe 33, the nitrification air inlet pipe 35 and the nitrification aeration pipe 17, so that the ammonia nitrogen or nitrite in the wastewater is nitrified into nitrate. The air blower 32 carries out aeration scrubbing on the ultrafiltration membrane group 22 by air through the aeration main pipe 33, the membrane scrubbing air inlet pipe 23 and the ultrafiltration membrane scrubbing aeration pipe 21, and scrubs sludge attached to the surface of the ultrafiltration membrane, thereby ensuring the flux of the membrane. The water outlet pipe 24 of the ultrafiltration membrane group is connected with one end of an ultrafiltration membrane outlet header pipe 25, the other end of the ultrafiltration membrane outlet header pipe 25 is connected with a water inlet of an ultrafiltration membrane outlet pump 26, and a water outlet of the ultrafiltration membrane outlet pump 26 is connected with a water outlet pipe 27 of the ultrafiltration membrane outlet pump. The sludge-water mixture in the ultrafiltration membrane pool 20 sequentially passes through a sludge reflux pump water inlet pipe 28, a sludge reflux pump 29, a sludge reflux pump water outlet pipe 31 and a denitrification reaction section in the middle uniform water distribution device 11 which are arranged at the bottom of the ultrafiltration membrane pool 20 and then flows back to the vertical reaction tank 8. The sludge reflux flowmeter 30 is arranged on a water outlet pipe 31 of the sludge reflux pump. The residual sludge is discharged through the residual sludge discharge pipe 36, and a vertical reaction tank emptying pipe 37 is arranged at one end of the bottom uniform water distribution device 9 arranged at the bottom of the vertical reaction tank 8 and is used for emptying, and air is emptied when the vertical reaction tank 8 is filled with water, so that the anaerobic ammonia oxidation reaction section can have no oxygen, and the anaerobic ammonia oxidation reaction can be carried out.
The high-concentration ammonia nitrogen wastewater is pumped into a water inlet pipe 4 of the shortcut nitrification liquid reflux pump through a water inlet pump 2, mixed with the refluxed shortcut nitrification liquid and pumped into the bottom of a vertical reaction tank 8 through a shortcut nitrification liquid reflux pump 5. The refluxed shortcut nitrification liquid contains a large amount of nitrite, and the nitrite reacts with ammonia nitrogen in the inlet water under the anaerobic condition under the action of anaerobic ammonia oxidizing bacteria attached to and growing on the anaerobic ammonia oxidizing filler 10 to generate nitrogen, so that the nitrogen is removed from the wastewater, and the specific reaction formula is as follows:
1NH4 ++1.32NO2 -+0.066HCO3 -+0.13H+→1.02N2+0.26NO3 -+0.066CH2O0.5N0.15+2.03H2O；
then the wastewater rises into a denitrification reaction section, simultaneously the sludge-water mixture in the ultrafiltration membrane tank 20 flows back to the denitrification reaction section through a sludge return pump 29 and a pipeline and is uniformly mixed with the effluent water of the anaerobic ammonia reaction section at the bottom of the denitrification reaction section, the returned sewage mixture contains nitrite and nitrate, the nitrite and the nitrate in the sludge water and the denitrifying bacteria attached to the denitrifying fillers denitrify the nitrite and the nitrate into nitrogen under the anoxic condition, so that the nitrogen is removed from the wastewater, carbon source required by the reaction is provided by organic matters in the wastewater, then the wastewater rises into a short-cut nitrification reaction section, the bottom of the short-cut nitrification reaction section is provided with a short-cut nitrification aeration pipe 13 which carries out micro-aeration on the sludge-water mixture in the short-cut nitrification reaction section, DO is controlled within the range of 0.5-1.0 mg/L, and under the micro-aeration condition, the nitrite attached to the short-cut nitrites 14 is grown on the short-cut nitrified fillersThe acid bacteria nitrify ammonia nitrogen in the wastewater into nitrite, and the specific reaction formula is as follows: 2NH4 ++3O2→2NO2 -+4H++2H2And the nitrite generated by the reaction returns to the bottom of the anaerobic ammonia oxidation reaction section through a short-cut nitrification reflux pump 5 to be mixed with inlet water, then the wastewater rises to enter a nitrification reaction section, a nitrification aeration pipe 17 is arranged at the bottom of the nitrification reaction section to fully aerate the muddy water mixture in the reactor, and DO is controlled within the range of 2-3 mg/L, under the aerobic condition, the nitrifying bacteria in the muddy water nitrify the residual ammonia nitrogen or nitrite in the wastewater into nitrate, and the specific reaction formula is as follows, 2NH4 ++3O2→2NO2 -+4H++2H2O；2NO2 -+O2→2NO3 -. And then the effluent of the nitration reaction section enters an ultrafiltration membrane tank 20 for sludge-water separation. When the built-in ultrafiltration membrane group 22 normally operates, water in the membrane pool is pumped out through the ultrafiltration membrane by the ultrafiltration membrane water outlet pump 26 and discharged after reaching standards under the suction action of the ultrafiltration membrane water outlet pump 26, sludge is intercepted by the ultrafiltration membrane and is left on the surface of the ultrafiltration membrane, the ultrafiltration membrane scrubbing aeration pipe 21 arranged at the bottom of the built-in ultrafiltration membrane group 22 carries out aeration scrubbing on the ultrafiltration membrane, the sludge intercepted by the ultrafiltration membrane and attached to the surface of the ultrafiltration membrane is scrubbed and falls into the ultrafiltration membrane pool, and the cleanliness of the surface of the ultrafiltration membrane is kept, so that a certain flux of the ultrafiltration membrane is ensured. The sludge intercepted by the ultrafiltration membrane flows back to the bottom of the denitrification reaction section in the integrated vertical reaction tank 8 through a sludge return pump 29, the return liquid contains nitrite and nitrate, and the nitrite and the nitrate are removed by denitrification in the denitrification reaction section.
The process realizes partial nitrification, anaerobic ammonia oxidation and traditional denitrification reaction in different reaction sections, can optimize the living environment of three types of bacteria, and has stable operation performance; the vertical integrated structure is adopted for combination, so that the occupied area can be saved by 75%; the built-in ultrafiltration membrane is used for replacing a sedimentation tank to carry out mud-water separation, so that the quality of the effluent is improved, the loss of sludge is prevented, and the concentration of the sludge in the bioreactor is improved. The invention adopts an integrated vertical reactor, combines the short-cut nitrification, anaerobic ammonium oxidation and the traditional nitrification and denitrification reactor in an integrated vertical way, reduces reaction units, simplifies the process, reduces the occupied area, shortens the reaction steps, reduces the volume of a reaction tank, and simultaneously reduces oxygen supply, an external carbon source and alkalinity by utilizing the synergistic action of nitrosobacteria and anaerobic ammonium oxidation bacteria.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.

Claims (7)

1. The vertical high-concentration ammonia nitrogen wastewater treatment equipment is characterized by comprising a vertical reaction tank, an anaerobic ammonia oxidation reaction section, a denitrification reaction section, a shortcut nitrification reaction section and a nitrification reaction section which are sequentially arranged in the vertical reaction tank from bottom to top, a water inlet pump and a shortcut nitrification liquid reflux pump, wherein one end of the shortcut nitrification liquid reflux pump is communicated with the water inlet pump, the other end of the shortcut nitrification liquid reflux pump is communicated with the bottom of the vertical reaction tank, the anaerobic ammonia oxidation reaction section comprises a bottom uniform water distribution device arranged at the bottom of the vertical reaction tank and an anaerobic ammonia oxidation filler arranged on the bottom uniform water distribution device, the shortcut nitrification reaction section comprises a shortcut nitrification aeration pipe arranged on the denitrification reaction section and a shortcut nitrification filler arranged on the shortcut nitrification aeration pipe, and the nitrification reaction section comprises a middle uniform water collecting device, a short-path nitrification filler and a short-path nitrification aeration pipe which are arranged from, The nitrification aeration pipe and the aerobic nitrification filler are arranged, the middle uniform water collecting device is communicated with the short-cut nitrification liquid reflux pump, and the nitrification reaction section is communicated with the ultrafiltration membrane tank.
2. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment according to claim 1, wherein the denitrification reaction section comprises a middle uniform water distribution device and a denitrification filler, wherein the middle uniform water distribution device is abutted with the anaerobic ammonia oxidation filler.
3. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment as claimed in claim 1, wherein the short-cut nitrification aeration pipe and the nitrification aeration pipe are communicated with the ultrafiltration membrane tank.
4. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment as claimed in claim 3, wherein a built-in ultrafiltration membrane group is arranged in the ultrafiltration membrane tank, and an ultrafiltration membrane scrubbing aeration pipe is arranged at the bottom of the ultrafiltration membrane group.
5. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment as claimed in claim 4, wherein the ultrafiltration membrane scrubbing aeration pipe is communicated with the short-cut nitrification aeration pipe and the nitrification aeration pipe.
6. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment according to claim 5, characterized by further comprising an air blower communicated with the ultrafiltration membrane scrubbing aeration pipe, the short-cut nitrification aeration pipe and the nitrification aeration pipe.
7. The vertical high-concentration ammonia-nitrogen wastewater treatment equipment according to claim 6, characterized by further comprising a sludge reflux pump, one end of which is communicated with the middle uniform water distribution device, and the other end of which is communicated with the bottom of the ultrafiltration membrane tank.
CN202010264875.8A 2020-04-07 2020-04-07 Vertical high-concentration ammonia nitrogen wastewater treatment equipment Pending CN111453842A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010264875.8A CN111453842A (en) 2020-04-07 2020-04-07 Vertical high-concentration ammonia nitrogen wastewater treatment equipment
PCT/CN2021/073650 WO2021203800A1 (en) 2020-04-07 2021-01-25 Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010264875.8A CN111453842A (en) 2020-04-07 2020-04-07 Vertical high-concentration ammonia nitrogen wastewater treatment equipment

Publications (1)

Publication Number Publication Date
CN111453842A true CN111453842A (en) 2020-07-28

Family

ID=71677035

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010264875.8A Pending CN111453842A (en) 2020-04-07 2020-04-07 Vertical high-concentration ammonia nitrogen wastewater treatment equipment

Country Status (2)

Country Link
CN (1) CN111453842A (en)
WO (1) WO2021203800A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021203800A1 (en) * 2020-04-07 2021-10-14 福建中盟环保有限公司 Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114314835B (en) * 2021-12-31 2024-03-12 佛山市绿能环保有限公司 Short-cut nitrification and denitrification coupling anaerobic ammonia oxidation denitrification reactor and integrated equipment
CN114853274A (en) * 2022-04-28 2022-08-05 南京神克隆科技有限公司 High-efficiency integrated treatment process for landfill leachate membrane concentrated solution
CN115093070A (en) * 2022-05-30 2022-09-23 中冶华天工程技术有限公司 Method for treating imidacloprid production wastewater
CN115043492B (en) * 2022-06-24 2023-05-23 江西省科学院能源研究所 Sewage denitrification device and method thereof
CN115385448B (en) * 2022-06-30 2023-11-21 光大环境科技（中国）有限公司 Device and method for treating high ammonia nitrogen wastewater through integrated anaerobic ammonia oxidation
CN115571974A (en) * 2022-10-31 2023-01-06 北京工业大学 Method for quickly realizing short-cut nitrification of domestic sewage under high dissolved oxygen condition

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106673192A (en) * 2016-11-17 2017-05-17 上海晶宇环境工程股份有限公司 Technology for removing total nitrogen in garbage leachate by anammox and special device thereof
CN107265641A (en) * 2017-03-16 2017-10-20 泉州华大环保科技有限公司 A kind of high-enriched organics, the biological treatment device of ammonia nitrogen waste water and its application method
CN109336325A (en) * 2018-10-16 2019-02-15 浙江伍特环保科技有限公司 A kind of apparatus and method of zero discharge treatment treatment of advanced stage landfill leachate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110104880A (en) * 2019-05-08 2019-08-09 哈尔滨工业大学（威海） A method of advanced nitrogen is realized using improvement AO biomembrane and ultrafiltration membrane
CN110723817B (en) * 2019-11-08 2022-03-25 南京高新工大生物技术研究院有限公司 Short-cut nitrification-anaerobic ammonia oxidation process for efficiently treating low-carbon high-ammonia-nitrogen wastewater
CN111056705A (en) * 2019-12-17 2020-04-24 福建中盟环保科技有限公司 Efficient biological denitrification MBR (membrane bioreactor) equipment for treating high-concentration ammonia-nitrogen wastewater
CN111453842A (en) * 2020-04-07 2020-07-28 福建中盟环保科技有限公司 Vertical high-concentration ammonia nitrogen wastewater treatment equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106673192A (en) * 2016-11-17 2017-05-17 上海晶宇环境工程股份有限公司 Technology for removing total nitrogen in garbage leachate by anammox and special device thereof
CN107265641A (en) * 2017-03-16 2017-10-20 泉州华大环保科技有限公司 A kind of high-enriched organics, the biological treatment device of ammonia nitrogen waste water and its application method
CN109336325A (en) * 2018-10-16 2019-02-15 浙江伍特环保科技有限公司 A kind of apparatus and method of zero discharge treatment treatment of advanced stage landfill leachate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021203800A1 (en) * 2020-04-07 2021-10-14 福建中盟环保有限公司 Vertical high-concentration ammonia nitrogen wastewater treatment device and treatment process

Also Published As

Publication number Publication date
WO2021203800A1 (en) 2021-10-14

Similar Documents

Publication Publication Date Title
CN111453842A (en) Vertical high-concentration ammonia nitrogen wastewater treatment equipment
CN108483655B (en) Method for deep denitrification by coupling shortcut nitrification and denitrification with anaerobic ammonia oxidation and sulfur autotrophic denitrification
US9708200B2 (en) Systems and methods for reducing ammonia emissions from liquid effluents and for recovering the ammonia
CA1307059C (en) Method of treating waste water and equipment therefor
CN100569669C (en) Anaerobic-anoxic oxidation pitch technique denitrification dephosphorization device and method thereof
CN109970200B (en) Device and method for treating urban domestic sewage based on coupling of short-cut denitrification dephosphorization and anaerobic ammonia oxidation
CN108046518B (en) Enhanced nitrogen and phosphorus removal device and method for low-carbon source sewage
CN110510739A (en) It is a kind of to realize that half short distance of continuous flow AOA biomembrane couples anaerobic ammonium oxidation apparatus and method by azanol
CN105110553A (en) Method for treating high-concentration starch wastewater
CN210595460U (en) Combined device of denitrification-nitrosation-anaerobic ammonia oxidation
CN111056705A (en) Efficient biological denitrification MBR (membrane bioreactor) equipment for treating high-concentration ammonia-nitrogen wastewater
CN108585199A (en) One kind is by introducing AMX（Anammox）Bacterium strengthens the integrated apparatus and method of A/O technique deep denitrifications
CN103601294B (en) Method and system for realization of autotrophic nitrogen removal of micro polluted water
CN107381958A (en) Carbon nitrogen divergence type denitrification process
CN109095612A (en) A kind of energy-saving consumption-reducing short-range nitration synchronous denitrifying phosphorus removal device and technique
CN110255812B (en) Biochemical and advanced oxidation combined method for retaining ammonia nitrogen and removing antibiotics in livestock and poultry breeding sewage treatment process
JP3958900B2 (en) How to remove nitrogen from wastewater
CN113697954B (en) Device and method for realizing short-cut denitrification dephosphorization coupling anaerobic ammonia oxidation deep denitrification through side flow reactor
CN214399974U (en) Baffling type activated sludge biological denitrification equipment without sludge backflow
CN109912026A (en) A kind of pair of low ratio of carbon to ammonium municipal sewage carries out the technique and device of high-efficient denitrification and dephosphorization
CN109179652A (en) A kind of low C/N is than organic wastewater denitrifying method
CN114477456A (en) Endogenous short-cut denitrification enhanced municipal sewage short-cut nitrification/anaerobic ammonia oxidation deep denitrification device and method
CN205398228U (en) High ammonia -nitrogen concentration is low, and CN compares effluent disposal system
CN107445297A (en) A kind of startup method for handling pig farm biogas slurry SNAD techniques
CN113443714A (en) Sewage deep denitrification treatment device and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200728

RJ01 Rejection of invention patent application after publication