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CN105585122A - High-ammonia-nitrogen low-C/N-ratio wastewater treatment system and treatment technique - Google Patents

High-ammonia-nitrogen low-C/N-ratio wastewater treatment system and treatment technique Download PDF

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CN105585122A
CN105585122A CN201610111771.7A CN201610111771A CN105585122A CN 105585122 A CN105585122 A CN 105585122A CN 201610111771 A CN201610111771 A CN 201610111771A CN 105585122 A CN105585122 A CN 105585122A
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tank
pool
anoxic
aerobic
micro
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CN105585122B (en
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赵鸭美
谢柳
周俊利
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Chimey Environment Science & Technnology Co ltd
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Huzhou Zhimei Biotechnology Co Ltd
HUZHOU ENVIRONMENTAL SCIENCE AND TECHNOLOGY INNOVATION CENTER
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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
    • C02F3/305—Nitrification and denitrification treatment characterised by the denitrification

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  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention relates to a high-ammonia-nitrogen low-C/N-ratio wastewater treatment system and treatment technique, belonging to the technical field of wastewater treatment. The system comprises a hydrolysis acidification tank, an anoxic tank, a microaerobic nitrosification tank and an aerobic tank, wherein the hydrolysis acidification tank communicates with the anoxic tank; the anoxic tank is connected with the microaerobic nitrosification tank through a pipeline; the microaerobic nitrosification tank is connected with the aerobic tank through a pipeline; a nitrosification liquid reflux pipeline is arranged between the microaerobic nitrosification tank and the anoxic tank; and a nitrosification solution reflux pipeline is arranged between the aerobic tank and the anoxic tank. The treatment system and treatment technique have favorable enhancement effects on wastewater treatment and reconstruction of leather wastewater, synthetic ammonia and nitrogen fertilizer techniques, and are suitable for treating high-ammonia-nitrogen low-C/N-ratio wastewater. The treatment system and treatment technique have the advantages of favorable denitrification effect and low operating cost, and can achieve the goal of simultaneously removing ammonia nitrogen and total nitrogen.

Description

A kind of high-ammonia nitrogen low C/N is than Waste Water Treatment and treatment process
Technical field
The invention belongs to technical field of waste water processing, be particularly related to a kind of high-ammonia nitrogen low C/N than Waste Water Treatment and treatment process.
Background technology
Along with the shortage of water resource, the deterioration of quality of water environment become the obstacle of socio-economic development day by day, improve sewage treating efficiency and degree for the treatment of, strengthen the denitrogenation dephosphorizing usefulness of sewage treatment plant, the root of elimination body eutrophication, the cost that reduces sewage disposal becomes the task of top priority. State Environmental Protection Administration issues the raising of sewage drainage standard in recent years, and each sewage disposal plant effluent water quality is also improved accordingly, but still generally occurs carbon source deficiency, the phenomenon that denitrification effect is not good. How to improve the efficient utilization of sewage treatment process carbon source, effectively remove nitrogenous source pollutant in sewage and become a difficult problem of needing solution badly.
At present, normal biological denitrificaion method--the traditional nitration denitrification adopting, this processing procedure comprises the nitrification and denitrification stage, the techniques such as SBR, MBR, A/O, CASS, oxidation ditch just belong to traditional denitrification process. Traditional nitration denitrification has played certain effect in sewage water denitrification process, but still come with some shortcomings, for example 1. the denitrification stage needs certain organic matter to provide energy as carbon source and electron donor for denitrifying bacterium, but the COD in waste water is through aeration, most of organic matter is removed, and therefore conventionally need to additionally add carbon source when denitrification; 2. the nitrated stage completes under aerobic conditions, and energy consumption is large; 3. the nitrated stage produces a large amount of acid, affects the denitrification effect of whole technique, need add alkali neutralization, has increased wastewater treatment operating cost. Data shows according to statistics, and about You Jin240Zuo sewage treatment plant of China adopts A/O technique, and its overall design disposal ability approximately reaches 2,000 ten thousand m3/ d. But the denitrogenation in this conventional process flow is easily subject to the impact of entering organic matter of water impact load, cause denitrification effect unstable.
For the new biological denitrification process short-cut nitrification and denitrification of above-mentioned deficiency and drawback appearance, compared with traditional nitration denitrification: 1. reduced nitrite-oxidizing and become nitrate, nitrate to restore into the reaction of nitrite, improve reaction rate, Reaction time shorten; 2. reduce oxygen demand, organic dosage of denitrification stage, reduced energy consumption, operating cost.
In sum, according to the feature of waste water, how to distribute the running status of wastewater treatment process rationally, utilize limited carbon source, realizing effective removal of nitrogenous source pollutant in sewage is focus and the difficult point of sewage water denitrification technical research.
Summary of the invention
The object of the invention is to overcome the above-mentioned defect of mentioning and deficiency, and provide a kind of high-ammonia nitrogen low C/N than the treatment system of waste water.
Of the present invention separately have object to be to provide a kind of high-ammonia nitrogen low C/N to compare waste water treatment process.
The technical scheme that the present invention realizes its object employing is as follows.
A kind of high-ammonia nitrogen low C/N, than Waste Water Treatment, comprises hydrolysis acidification pool, anoxic pond, micro-oxygen nitrosation pond and Aerobic Pond; Described hydrolysis acidification pool is communicated with anoxic pond; Described anoxic pond is connected by pipeline with micro-oxygen nitrosation pond; Described micro-oxygen nitrosation pond is connected by pipeline with Aerobic Pond; Between described micro-oxygen nitrosation pond and anoxic pond, be provided with nitrosation liquid reflux line; Between described Aerobic Pond and anoxic pond, be provided with nitrosation liquid reflux line.
A kind of high-ammonia nitrogen low C/N, than Waste Water Treatment, also comprises preliminary sedimentation tank and intermediate sedimentation pond; Described preliminary sedimentation tank is connected by pipeline with hydrolysis acidification pool; Described intermediate sedimentation pond is arranged between hydrolysis acidification pool and anoxic pond, and intermediate sedimentation pond connects hydrolysis acidification pool and anoxic pond by pipeline, between described intermediate sedimentation pond and hydrolysis acidification pool, is provided with sludge return pipe.
A kind of high-ammonia nitrogen low C/N, than Waste Water Treatment, also comprises second pond; Described second pond is connected by pipeline with Aerobic Pond.
A kind ofly adopt above-mentioned high-ammonia nitrogen low C/N than the treatment process of Waste Water Treatment, adopt " hydrolysis acidification+A+O1+O2 " group technology to process than waste water high-ammonia nitrogen low C/N, wherein, hydrolysis acidification represents the hydrolysis acidification stage, A represents the anoxic stage, O1 represents micro-oxygen Nitrification Stage, and O2 represents aerobic stage; This technique comprises the following steps:
Step 1, in the hydrolysis acidification stage: waste water is hydrolysis acidification processing in hydrolysis acidification pool, the waste water inorganic ammonia nitrogen that effect is converted into the organic nitrogen in waste water through hydrolysising microorganism, is hydrolyzed the larger molecular organics in waste water to become small organic molecule simultaneously;
Step 2, in the A stage: waste water flows into anoxic pond from hydrolysis acidification pool, carries out denitrification denitrogenation processing;
Step 3, the O1 stage: waste water flows into micro-oxygen nitrosation pond from anoxic pond, carries out biological reinforced nitrosation processing, and the backflow of nitrosation liquid is set between micro-oxygen nitrosation pond and anoxic pond;
Step 4, the O2 stage: waste water flows into Aerobic Pond and carries out biochemical treatment from micro-oxygen nitrosation pond, remove remaining COD, ammonia nitrogen, nitre nitrogen and nitrite nitrogen, guarantees water outlet qualified discharge; And at Aerobic Pond and anoxic pond, the backflow of nitrosation liquid is set.
Further, in step 1, hydrolysis acidification pool HRT is controlled at 8-10h; In step 2, anoxic pond HRT is controlled at 3.5-4.5h; In step 3, micro-oxygen nitrosation pond HRT is controlled at 6.5-7.5h; In step 4, Aerobic Pond HRT is controlled at 3-5h; HRT represents hydraulic detention time.
Further, in step 2, anoxic pond DO is controlled at 0.5-1.0mg/L; In step 3, micro-oxygen nitrosation pond DO is controlled at 0.5-2.0mg/L; In step 4, be controlled at >=2.0mg/L of Aerobic Pond DO. Regulate the dissolved oxygen in each pond, form anoxic-micro-oxygen-aerobic process conditions, and by supplementing appropriate organic carbon source at anoxic water inlet leading portion, can improve denitrification usefulness in short distance nitration.
Further, in step 3, between micro-oxygen nitrosation pond and anoxic pond, reflux ratio is 200%; In step 4, between Aerobic Pond and anoxic pond, reflux ratio is 100%. The most of nitrosation liquid refluxing and a small amount of nitrification liquid utilize the carbon source of anoxic pond to carry out anti-nitration reaction, remove the total nitrogen in sewage. Reduce the COD entering in the waste water of micro-oxygen nitrosation pond simultaneously, thereby suppressed the generation of nitrification in micro-oxygen nitrosation pond, promoted the process of short distance nitration effect.
As preferably, in anoxic pond, micro-oxygen nitrosation pond and Aerobic Pond, all add polyurethane sponge filler; Described polyurethane sponge media-filling rate is 30%～60%; Described polyurethane sponge filler plays fixation of microbe effect; Described hydrolysis acidification pool inoculation hydrolysis compound bacteria, bacillus subtilis CM-A12, anoxic pond inoculation denitrifying bacteria CM-NRD3, micro-oxygen nitrosation pond inoculation ammonia oxidizing bacteria CM-NRO14; Aerobic Pond inoculation COD degraded compound bacteria, bacillus subtilis CM-A12.
As preferably, a kind of high-ammonia nitrogen low C/N, than waste water treatment process, also comprises preliminary sedimentation tank and intermediate sedimentation pond; Described preliminary sedimentation tank is connected by pipeline with hydrolysis acidification pool; Described intermediate sedimentation pond is arranged between hydrolysis acidification pool and anoxic pond, and intermediate sedimentation pond connects hydrolysis acidification pool and anoxic pond by pipeline; Flow through successively preliminary sedimentation tank, hydrolysis acidification pool, intermediate sedimentation of waste water flows into anoxic pond behind pond.
As preferably, a kind of high-ammonia nitrogen low C/N, than waste water treatment process, also comprises second pond; Described second pond is connected by pipeline with Aerobic Pond; Waste water flows into second pond from Aerobic Pond.
Further, ammonia nitrogen removal frank is 95%-99%, and nitrogen removal rate is 80%-85%.
This treatment system and treatment process have good lifting effect to leather waste water, synthetic ammonia and nitrogen fertilizer process wastewater treatment and transformation, are applicable to have high-ammonia nitrogen low C/N than the processing of feature waste water. It is good that this treatment system and treatment process have denitrification effect, and operating cost is low, can realize the object that ammonia nitrogen and total nitrogen are removed simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of native system;
Fig. 2 is the flow chart of this technique;
In figure: 1-preliminary sedimentation tank, 2-hydrolysis acidification pool, 3-intermediate sedimentation pond, 4-anoxic pond, the micro-oxygen nitrosation of 5-pond, 6-Aerobic Pond, 7-second pond.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, in figure: solid line represents water route, dotted line represents road.
A kind of high-ammonia nitrogen low C/N, than Waste Water Treatment, comprises preliminary sedimentation tank 1, hydrolysis acidification pool 2, intermediate sedimentation pond 3, anoxic pond 4, micro-oxygen nitrosation pond 5, Aerobic Pond 6 and second pond 7.
Described preliminary sedimentation tank 1 is connected by pipeline with hydrolysis acidification pool 2; Described hydrolysis acidification pool 2 is connected by pipeline with intermediate sedimentation pond 3; Described intermediate sedimentation pond 3 is connected by pipeline with anoxic pond 4; Described anoxic pond 4 is connected by pipeline with micro-oxygen nitrosation pond 5; Described micro-oxygen nitrosation pond 5 is connected by pipeline with Aerobic Pond 6; Described Aerobic Pond 6 is connected by pipeline with second pond 7.
Between described intermediate sedimentation pond 3 and hydrolysis acidification pool 2, be provided with sludge return pipe, the mud of backflow supplements the hydrolysising microorganism running off in time, improves hydrolysis efficiency.
Between described micro-oxygen nitrosation pond 5 and anoxic pond 4, be provided with nitrosation liquid reflux line; Between described Aerobic Pond 6 and anoxic pond 4, be provided with nitrosation liquid reflux line.
The most of nitrosation liquid refluxing and a small amount of nitrification liquid utilize the carbon source of anoxic pond 4 to carry out anti-nitration reaction, remove the total nitrogen in sewage. Reduce the COD entering in 5 waste water of micro-oxygen nitrosation pond simultaneously, thereby suppressed the generation of nitrification in micro-oxygen nitrosation pond 5, promoted the process of short distance nitration effect.
A kind of high-ammonia nitrogen low C/N, than Waste Water Treatment, adopts " hydrolysis acidification+A+O1+O2 " group technology to process than waste water high-ammonia nitrogen low C/N, wherein, hydrolysis acidification represents the hydrolysis acidification stage, A represents the anoxic stage, and O1 represents micro-oxygen Nitrification Stage, and O2 represents aerobic stage.
This technique comprises the following steps:
Step 1, the hydrolysis acidification stage: waste water is hydrolysis acidification processing in hydrolysis acidification pool 2, waste water is converted into and is beneficial to biodegradable inorganic ammonia nitrogen being difficult for bioavailable organic nitrogen in waste water through hydrolysising microorganism effect, strengthen nitric efficiency, the larger molecular organics of difficult degradation in waste water is hydrolyzed and becomes small organic molecule simultaneously, improve the B/C of waste water, the biodegradability of raising waste water; Hydrolysis acidification pool HRT is controlled at 8-10h; HRT represents hydraulic detention time.
Step 2, in the A stage: waste water flows into anoxic pond 4 from hydrolysis acidification pool 2, the denitrifying bacterium that anoxic pond is 4 li utilizes organic carbon source to carry out denitrogenation processing; Anoxic pond DO is controlled at 0.5-1.0mg/L; Anoxic pond HRT is controlled at 3.5-4.5h;
As preferably, waste water from hydrolysis acidification pool 2 after the precipitation in intermediate sedimentation pond 3 with nitrosation liquid reflux line in the nitrosation liquid that refluxes together enter anoxic pond 4. Anoxic pond 4 for reflux nitrosation liquid provide carbon source to carry out denitrification.
Step 3, the O1 stage: waste water flows into micro-oxygen nitrosation pond 5 from anoxic pond 4, carries out biological reinforced short-cut nitrification and denitrification processing, and the backflow of nitrosation liquid is set between micro-oxygen nitrosation pond 5 and anoxic pond 4; Micro-oxygen nitrosation pond DO is controlled at 0.5-2.0mg/L; Micro-oxygen nitrosation pond HRT is controlled at 6.5-7.5h;
After absorbing the ammonia nitrogen in waste water, micro-oxygen nitrosation pond 5 interior denitrification functions bacterium are converted into NO2 --N, being back to anoxic pond 4 is become nitrogen by denitrifying bacteria reduction and is diffused in air, thereby removes TN and the ammonia nitrogen in waste water.
Waste water carries out nitrosation reaction, NH in micro-oxygen nitrosation pond 54 +-N is oxidized to NO2 --N, the micro-oxygen surround inhibition in reaction tank the generation of nitrification, make ammoxidation mainly rest on the nitrite nitrogen stage, can significantly reduce the denitrification time of staying and energy consumption.
Between micro-oxygen nitrosation pond 5 and anoxic pond 4, reflux ratio is 200%, and most of nitrosation liquid of backflow and a small amount of nitrification liquid utilize the carbon source of anoxic pond 4 to carry out anti-nitration reaction, remove the total nitrogen in sewage. Reduce the COD entering in 5 waste water of micro-oxygen nitrosation pond simultaneously, thereby suppressed the generation of nitrification in micro-oxygen nitrosation pond 5, promoted the process of short distance nitration effect.
Step 4, the O2 stage: waste water flows into Aerobic Pond 6 from micro-oxygen nitrosation pond 5 and carries out biochemical treatment, and the interior a large amount of aerobic microbiological of Aerobic Pond 6, protozoan utilize the organic matter in waste water, removes COD, makes water outlet qualified discharge; And at Aerobic Pond 6 and anoxic pond 4, the backflow of nitrosation liquid is set; Between micro-Aerobic Pond 6 and anoxic pond 4, reflux ratio is 100%. Be controlled at >=2.0mg/L of Aerobic Pond DO, ammonia nitrogen removal frank is 95%-99%, nitrogen removal rate is 80%-85%; Aerobic Pond HRT is controlled at 3-5h.
Aerobic Pond 6 water outlets are qualified discharge after second pond 7 precipitations.
DO herein represents dissolved oxygen. Regulate the dissolved oxygen in each pond, form anoxic-micro-oxygen-aerobic process conditions, and by supplementing appropriate organic carbon source at anoxic water inlet leading portion, can improve denitrification usefulness in short distance nitration.
In anoxic pond 4, micro-oxygen nitrosation pond 5 and Aerobic Pond 6, all add polyurethane sponge filler. Polyurethane sponge filler has larger specific area, can provide enough and stable living environment for attached growth of microorganisms, and have that resistance to impact is strong, stable performance, biofilm rapidly and the advantage such as the system debug time is short.
Polyurethane sponge filler is easy to the microorganism such as denitrifying bacterium, ammonia oxidation bacteria and forms biomembrane, without add a large amount of activated sludge in reaction tank, has reduced the outer row of mud in water treatment, saves processing cost. As preferably, described polyurethane sponge media-filling rate is 30%～60%. Filling rate adopts volume ratio.
Adopt immobilized microorganism technique, with polyurethane sponge filler as Immohilized microorganism carrier, microorganism used is function bacterium, for example ammonia oxidizing bacteria CM-NRO14, denitrifying bacteria CM-NRD3, hydrolysis compound bacteria, Decolourization Bacteria CM-T1, COD degraded compound bacteria, bacillus subtilis CM-A12 etc. Feeding function microorganism in hydrolysis acidification pool 2, anoxic pond 4, micro-oxygen nitrosation pond 5 and Aerobic Pond 6. Functional microorganism is the efficient functional microorganism bacterial classification that laboratory screening obtains. Described hydrolysis acidification pool 2 inoculation hydrolysis compound bacteria, bacillus subtilis CM-A12, anoxic pond 4 is inoculated denitrifying bacteria CM-NRD3, and ammonia oxidizing bacteria CM-NRO14 is inoculated in micro-oxygen nitrosation pond 5; Aerobic Pond 6 is inoculated COD degraded compound bacteria, bacillus subtilis CM-A12.
This treatment process has good lifting effect to leather-making waste water, synthetic ammonia and nitrogen fertilizer process wastewater treatment and transformation, is applicable to have processing and the reuse of high-ammonia nitrogen low C/N feature waste water.
Embodiment 1
Certain sewage treatment plant, taking trade effluent as main, accounts for more than 80%, and trade effluent, taking chemical leather DMF waste water and textile waste as main, contains part pharmacy waste water, electroplating wastewater. Existing processing biochemical process is " fine fack+rotational flow grit chamber+adjusting, sedimentation basin+hydrolysis acidification pool+modified form SBR+ automatic reaction pond flocculation basin+fibre filter D type filter tank+ClO2Sterilization pool ". Main influent quality index CODCrAverage 250mg/L, NH4 +The average 51mg/L of-N, the average 71mg/L of total nitrogen. Water outlet COD after existing PROCESS FOR TREATMENTCrAverage 47mg/L, NH4 +The average 13mg/L of-N, the average 22mg/L of total nitrogen, NH4 +-N, total nitrogen cannot reach relevant water outlet discharge standard. Adopt " hydrolysis acidification pool+anoxic pond+micro-oxygen nitrosation pond+Aerobic Pond " group technology to carry out at the scene pilot experiment, pilot-plant treatment scale is 0.8m3/ h, i.e. this pilot process design sewage load is 20m3/ d. It is carrier that anoxic pond, micro-oxygen nitrosation pond and Aerobic Pond add polyurethane sponge filler, hydrolysis acidification pool inoculation hydrolysis compound bacteria, bacillus subtilis CM-A12, anoxic pond inoculation denitrifying bacteria CM-NRD3, micro-oxygen nitrosation pond inoculation ammonia oxidizing bacteria CM-NRO14, Aerobic Pond inoculation COD degraded compound bacteria, bacillus subtilis CM-A12. Water inlet is this sewage treatment plant's regulating reservoir water outlet, influent CODCrAverage 250mg/L, water outlet CODCrAverage 45mg/L, water inlet NH4 +The average 25mg/L of-N, water outlet NH4 +Below-N3mg/L, the average 45mg/L of water inlet total nitrogen, below water outlet total nitrogen 12mg/L, each index all reaches town sewage discharge standard.
Embodiment 2
Certain Chemical Co., Ltd. has the production capacity of producing 120000 tons of synthetic ammonia, 150,000 tons, urea, 30,000 tons of methyl alcohol per year, enterprise in process of production, the about 1700m of ammonia nitrogen waste water of discharge every day3. Adopt " hydrolysis acidification pool+anoxic pond+micro-oxygen nitrosation pond+Aerobic Pond " group technology to carry out at the scene pilot experiment, pilot-plant treatment scale is 0.875m3/ h, i.e. this pilot process design sewage load is 21m3/ d. It is carrier that anoxic pond, micro-oxygen nitrosation pond and Aerobic Pond add polyurethane sponge filler, hydrolysis acidification pool inoculation hydrolysis compound bacteria, bacillus subtilis CM-A12, anoxic pond inoculation denitrifying bacteria CM-NRD3, micro-oxygen nitrosation pond inoculation ammonia oxidizing bacteria CM-NRO14, Aerobic Pond inoculation COD degraded compound bacteria, bacillus subtilis CM-A12. Pilot experiment stable operation 3 months, influent CODCrAverage 850mg/L, water outlet CODCrAverage 89mg/L, water inlet NH4 +The average 600mg/L of-N, water outlet NH4 +The average 4.5mg/L of-N, reorganization is closed Process for Effluent and can be stablized and reach ammonia synthesizing industry Sewage Water Emissions.
Can find out by embodiment, waste water treatment process of the present invention than waste water, all has good treatment effect for high-ammonia nitrogen low C/N of different nature, and its water outlet can reach corresponding discharge standard.
The present invention is illustrated according to embodiment, is not departing under the prerequisite of present principles, and this device can also be made some distortion and improvement. It should be pointed out that all employings are equal to the technical scheme that the modes such as replacement or equivalent transformation obtain, and all drop in protection scope of the present invention.

Claims (10)

1.一种高氨氮低C/N比废水处理系统，其特征在于，包括水解酸化池（2）、缺氧池（4）、微氧亚硝化池（5）和好氧池（6）；所述水解酸化池（2）与缺氧池（4）连通；所述缺氧池（4）和微氧亚硝化池（5）通过管路连接；所述微氧亚硝化池（5）和好氧池（6）通过管路连接；所述微氧亚硝化池（5）和缺氧池（4）之间设置有亚硝化液回流管道；所述好氧池（6）和缺氧池（4）之间设置有亚硝化液回流管道。 1. A wastewater treatment system with high ammonia nitrogen and low C/N ratio, characterized in that it includes a hydrolytic acidification pool (2), an anoxic pool (4), a micro-oxygen nitrosation pool (5) and an aerobic pool (6); The hydrolytic acidification pool (2) communicates with the anoxic pool (4); the anoxic pool (4) and the micro-oxygen nitrosation pool (5) are connected by pipelines; the micro-oxygen nitrosation pool (5) and The aerobic pool (6) is connected by pipelines; a nitrosating liquid return pipeline is set between the micro-oxygen nitrosation pool (5) and the anoxic pool (4); the aerobic pool (6) and the anoxic pool (4) There is a nitrosating liquid return pipeline between them. 2.如权利要求1所述的一种高氨氮低C/N比废水处理系统，其特征在于，还包括初沉池（1）和中间沉淀池（3）；所述初沉池（1）和水解酸化池（2）通过管路连接；所述中间沉淀池（3）设置在水解酸化池（2）和缺氧池（4）之间，且中间沉淀池（3）通过管路连接水解酸化池（2）和缺氧池（4）；所述中间沉淀池（3）和水解酸化池（2）之间设置有污泥回流管道。 2. A high ammonia nitrogen low C/N ratio wastewater treatment system according to claim 1, characterized in that it also includes a primary sedimentation tank (1) and an intermediate sedimentation tank (3); the primary sedimentation tank (1) It is connected with the hydrolytic acidification tank (2) through a pipeline; the intermediate sedimentation tank (3) is set between the hydrolytic acidification tank (2) and the anoxic tank (4), and the intermediate sedimentation tank (3) is connected to the hydrolysis tank through a pipeline The acidification tank (2) and the anoxic tank (4); a sludge return pipeline is arranged between the intermediate sedimentation tank (3) and the hydrolytic acidification tank (2). 3.如权利要求1所述的一种高氨氮低C/N比废水处理系统，其特征在于，还包括二沉池（7）；所述二沉池（7）与好氧池（6）通过管路连接。 3. A high ammonia nitrogen low C/N ratio wastewater treatment system according to claim 1, characterized in that it also includes a secondary settling tank (7); the secondary settling tank (7) and the aerobic tank (6) Connected by tubing. 4.一种采用如权利要求1所述的高氨氮低C/N比废水处理系统的处理工艺，其特征在于，采用水解酸化+A+O1+O2的组合工艺对高氨氮低C/N比废水进行处理，其中，水解酸化代表水解酸化阶段，A代表缺氧阶段，O1代表微氧亚硝化阶段，O2代表好氧阶段；本工艺包括以下步骤： 4. A treatment process adopting the low C/N ratio waste water treatment system of high ammonia nitrogen as claimed in claim 1, is characterized in that, adopts hydrolytic acidification+A+O1+O2 The combined process is to high ammonia nitrogen low C/N ratio Wastewater is treated, wherein, hydrolytic acidification represents the hydrolytic acidification stage, A represents the anoxic stage, O1 represents the micro-oxygen nitrosation stage, and O2 represents the aerobic stage; this process includes the following steps: 步骤一，水解酸化阶段：废水在水解酸化池（2）中水解酸化处理，废水经过水解微生物作用将废水中的有机氮转化为的无机氨氮，同时将废水中的大分子有机物进行水解变成小分子有机物； Step 1, hydrolytic acidification stage: the wastewater is hydrolyzed and acidified in the hydrolytic acidification tank (2), and the organic nitrogen in the wastewater is converted into inorganic ammonia nitrogen through the action of hydrolyzing microorganisms, and the macromolecular organic matter in the wastewater is hydrolyzed into small Molecular organic matter; 步骤二，A阶段：废水从水解酸化池（2）流入缺氧池（4），进行反硝化脱氮处理； Step 2, stage A: the wastewater flows from the hydrolytic acidification tank (2) into the anoxic tank (4) for denitrification and denitrification treatment; 步骤三，O1阶段：废水从缺氧池（4）流入微氧亚硝化池（5），进行生物强化亚硝化处理，并在微氧亚硝化池（5）和缺氧池（4）之间设置亚硝化液回流； Step 3, O1 stage: Wastewater flows from the anoxic pool (4) into the micro-oxygen nitritation pool (5), undergoes biologically enhanced nitrosation treatment, and passes between the micro-oxygen nitritation pool (5) and the anoxic pool (4) Set the nitrous solution backflow; 步骤四，O2阶段：废水从微氧亚硝化池（5）流入好氧池（6）进行生化处理，除去剩余的COD、氨氮、硝氮及亚硝氮，确保出水达标排放；并在好氧池（6）和缺氧池（4）设置亚硝化液回流。 Step 4, O2 stage: Wastewater flows from the micro-oxygen nitrification pool (5) into the aerobic pool (6) for biochemical treatment to remove the remaining COD, ammonia nitrogen, nitrate nitrogen and nitrite nitrogen to ensure that the effluent discharges up to the standard; and in the aerobic The pool (6) and the anoxic pool (4) are provided with nitrosating liquid backflow. 5.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，步骤一中，水解酸化池HRT控制在8-10h；步骤二中，缺氧池HRT控制在3.5-4.5h；步骤三中，微氧亚硝化池HRT控制在6.5-7.5h；步骤四中，好氧池HRT控制在3-5h；HRT表示水力停留时间。 5. A kind of high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, is characterized in that, in step one, hydrolytic acidification tank HRT is controlled at 8-10h; In step two, anoxic tank HRT is controlled at 3.5-4.5h; in step 3, the HRT of the micro-oxygen nitrosation pool is controlled at 6.5-7.5h; in step 4, the HRT of the aerobic pool is controlled at 3-5h; HRT means hydraulic retention time. 6.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，步骤二中，缺氧池DO控制在0.5-1.0mg/L；步骤三中，微氧亚硝化池DO控制在0.5-2.0mg/L；步骤四中，好氧池DO控制在≥2.0mg/L。 6. A kind of high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, is characterized in that, in step 2, the DO of anoxic pond is controlled at 0.5-1.0mg/L; The DO in the nitrification pool is controlled at 0.5-2.0 mg/L; in step 4, the DO in the aerobic pool is controlled at ≥ 2.0 mg/L. 7.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，步骤三中，微氧亚硝化池（5）和缺氧池（4）之间回流比为200%；步骤四中，好氧池（6）和缺氧池（4）之间回流比为100%。 7. A high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, characterized in that, in step 3, the reflux ratio between the micro-oxygen nitritation tank (5) and the anoxic tank (4) is 200%; in step 4, the reflux ratio between the aerobic pool (6) and the anoxic pool (4) is 100%. 8.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，在缺氧池（4）、微氧亚硝化池（5）和好氧池（6）中，均投加聚氨酯海绵填料；所述聚氨酯海绵填料填充率为30%～60%；所述聚氨酯海绵填料固定微生物；所述水解酸化池（2）接种水解复合菌、枯草芽孢杆菌CM-A12，缺氧池（4）接种反硝化细菌CM-NRD3，微氧亚硝化池（5）接种氨氧化细菌CM-NRO14；好氧池（6）接种COD降解复合菌、枯草芽孢杆菌CM-A12。 8. A high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, characterized in that, in the anoxic pool (4), micro-oxygen nitrosation pool (5) and aerobic pool (6) , all add polyurethane sponge filler; the filling rate of the polyurethane sponge filler is 30% to 60%; the polyurethane sponge filler immobilizes microorganisms; the hydrolytic acidification pool (2) is inoculated with hydrolytic composite bacteria, Bacillus subtilis CM-A12, The anoxic pool (4) was inoculated with denitrifying bacteria CM-NRD3, the micro-oxygen nitrification pool (5) was inoculated with ammonia oxidizing bacteria CM-NRO14; the aerobic pool (6) was inoculated with COD degradation compound bacteria, Bacillus subtilis CM-A12. 9.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，还包括初沉池（1）和中间沉淀池（3）；所述初沉池（1）和水解酸化池（2）通过管路连接；所述中间沉淀池（3）设置在水解酸化池（2）和缺氧池（4）之间，且中间沉淀池（3）通过管路连接水解酸化池（2）和缺氧池（4）；废水依次流经初沉池（1）、水解酸化池（2）、中间沉淀池（3）后流入缺氧池（4）。 9. A high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, characterized in that it also includes a primary sedimentation tank (1) and an intermediate sedimentation tank (3); the primary sedimentation tank (1) It is connected with the hydrolytic acidification tank (2) through a pipeline; the intermediate sedimentation tank (3) is set between the hydrolytic acidification tank (2) and the anoxic tank (4), and the intermediate sedimentation tank (3) is connected to the hydrolysis tank through a pipeline Acidification tank (2) and anoxic tank (4); the waste water flows through the primary sedimentation tank (1), hydrolytic acidification tank (2), intermediate sedimentation tank (3) and then flows into the anoxic tank (4). 10.如权利要求4所述的一种高氨氮低C/N比废水处理工艺，其特征在于，还包括二沉池（7）；所述二沉池（7）与好氧池（6）通过管路连接；废水从好氧池（6）流入二沉池（7）；氨氮去除率为95%-99%，总氮去除率为80%-85%。 10. A high ammonia nitrogen low C/N ratio wastewater treatment process as claimed in claim 4, characterized in that it also includes a secondary settling tank (7); the secondary settling tank (7) and the aerobic tank (6) Connected by pipelines; waste water flows from the aerobic tank (6) into the secondary sedimentation tank (7); the removal rate of ammonia nitrogen is 95%-99%, and the removal rate of total nitrogen is 80%-85%.
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CN108975495A (en) * 2018-07-13 2018-12-11 北京工业大学 A kind of technique of strengthened denitrification and hardly degraded organic substance removal
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CN109182210A (en) * 2018-10-15 2019-01-11 青岛农业大学 A kind of bacterial strain for sewage treatment
CN109182210B (en) * 2018-10-15 2021-05-07 青岛农业大学 A strain used in sewage treatment
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CN110577327A (en) * 2019-08-29 2019-12-17 江苏江华水处理设备有限公司 High ammonia nitrogen and nitrate nitrogen inorganic wastewater treatment process
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CN117228835B (en) * 2022-12-26 2024-06-04 无锡博泛特工程设备有限公司 High-efficient biological denitrification device

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