CN105330108B - Utilize anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing unit - Google Patents

Utilize anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing unit Download PDF

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CN105330108B
CN105330108B CN201510808776.0A CN201510808776A CN105330108B CN 105330108 B CN105330108 B CN 105330108B CN 201510808776 A CN201510808776 A CN 201510808776A CN 105330108 B CN105330108 B CN 105330108B
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sewage
anaerobic
aerobic reactor
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reaction area
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CN105330108A (en
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陆立海
农斌
宋海农
周永信
杨崎峰
黄洪波
洪雷
曾添文
覃茜
陈永利
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Guangxi Bossco Environmental Protection Technology Co Ltd
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Abstract

The invention discloses a kind of using anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, and this method includes following processing step:1) the small towns sewage being collected into water is carried out in high level storage pond to regulate and store and preformed precipitate;2) sewage enters anaerobic reaction area by flow by gravity, and anaerobic reaction area is provided with anaerobic organism filler;3) sewage flows upwardly into aerobic reactor zone by hydraulic pressure, and aerobic reactor zone is provided with biological rotating disk, and the sewage after Anaerobic Treatment into aerobic reactor zone is reacted with biofilm contact, realizes the pollutant removal effect of higher efficiency;4) sewage is introduced into High-rate sedimentation area, hybrid reaction is carried out by dosing coagulant, mixed liquor is after mud-water separation is handled, supernatant qualified discharge, excess sludge extraction.Sanitary sewage is handled using the method for the present invention, the conventional index of effluent quality meets《Urban wastewater treatment firm pollutant emission standard》(GB 18918-2002) level-one emission standard A meets the demand that the denitrogenation dephosphorizing of efficient stable is carried out to waste water.

Description

Utilize anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing Device
Technical field
It is specifically a kind of to utilize anaerobism-catalytic oxidation biology the present invention relates to a kind of process for handling sanitary sewage Membrane reactor handles sanitary sewage method and processing unit.
Background technique
Samll cities and towns' water environment has gradually showed contaminated serious trend in the case where being lacked concern for a long time.By Economic or other factors influence, and many samll cities and towns of China are difficult to handle sanitary wastewater.A large amount of sanitary sewage is direct The water bodys such as rivers lake are discharged into, biggish pollution is caused to environment.
There is town domestic sewage discharge to disperse, sewage water is less than normal, change of water quality fluctuation is big, because using chemical fertilizer, pesticide And make containing a certain amount of nitrogen, phosphorus and other organic matter and biodegradabilities are strong the features such as, integrated wastewater treatment equipment is special Sanitary wastewater suitable for this dispersibility is handled.
In recent years China start gradually using integrated sewage treating apparatus technology to small town sewage into Row processing, these integration apparatus and its technique gradually develop to a variety of sides from original single activated sludge process or biofilm The combination process that method combines.It has the characteristics of occupied area is small, technique is complete, control is flexible and Integral movable.But it is existing Equipment and the technique applicability of use limit to that larger, technique setting is generally relatively simple, not to the final process effect of sewage Enough ideals, are especially difficult to reach requirement in terms of denitrogenation dephosphorizing, also do not have the ability of good reply influent quality fluctuation.
Summary of the invention
Anaerobism-catalytic oxidation biofilm reactor processing life is utilized technical problem to be solved by the invention is to provide a kind of Sewage method and processing unit living, this method and device can be improved sanitary sewage disposal efficiency, and intensified denitrification and dephosphorization acts on, and Ability is fluctuated with enough reply influent qualities.
The present invention solves above-mentioned technical problem with following technical solution:
Using anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and processing unit, it includes the present invention Following processing step:
1) the small towns sewage being collected into water is carried out in high level storage pond to regulate and store and preformed precipitate;
2) step 1) treated sewage is entered into anaerobic reaction area by flow by gravity, anaerobic reaction area is provided with anaerobism Biologic packing material is for anaerobe apposition growth;
3) step 2) treated sewage is flowed upwardly into aerobic reactor zone by hydraulic pressure, aerobic reactor zone is provided with biology and turns Disk, the sewage after Anaerobic Treatment into aerobic reactor zone are reacted with biofilm contact, realize that the pollutant of higher efficiency is gone Except effect;
4) after the biochemical treatment of step 3), sewage is introduced into High-rate sedimentation area, the entrance in High-rate sedimentation area is equipped with coagulation Agent adds mouth, carries out hybrid reaction by dosing coagulant, and mixed liquor is after mud-water separation is handled, supernatant qualified discharge, remains Remaining sludge extraction.
There are the differential water pressures of 1~3m between the high level storage pond of step 1) and the anaerobic reaction area of step 2).
The storage capacity in the high level storage pond is 6h inflow.
Anaerobic organism media-filling rate in the anaerobic reaction area of step 2) is that 50~80%, HRT is 4~6 hours.
The anaerobic reaction area dissolved oxygen concentration is in 0.5mg/L hereinafter, pH control is 6.5~7.2.
Biological rotating disk revolving speed in the step 3) aerobic reactor zone is 1.5~3 revs/min, the periphery linear speed of biological rotating disk Degree is set as 15 ms/min, and the HRT of aerobic reactor zone is 8~10 hours.
The dish axle of the biological rotating disk is higher by the water surface, and disk has 40% to soak in water, and 60% exposes in air, biomembrane Overall thickness reaches 0.5~1.0mm.
It is equipped with circulation loop channel between the aerobic reactor zone and anaerobic reaction area, makes the sewage backflow of aerobic reactor To anaerobic reaction area, the sewage of reflux, which cuts anaerobic organism filler, to be dispersed, and a wide range of turbulent flow is formed in anaerobic reaction area, Form concerted reaction.
The internal circulating load in the circulation loop channel controls between 50~200%, can take the circumstances into consideration to increase in the case where water quality situation is special Add interior internal circulating load and extends the reaction time 2~5 hours to promote treatment effect.
In step 4), the coagulant added is polyaluminum ferric chloride, and dosage is 5~10mg/L.
The method of the present invention use anaerobism-catalytic oxidation biofilm reactor include the anaerobic reaction area 2 successively to connect, it is good Oxygen reaction zone 6 and High-rate sedimentation area 13, anaerobic reaction area 2 is located at the lower section of reactor, and is equipped with water inlet 1, interior to be equipped with anaerobism Biologic packing material;Aerobic reactor zone 6 is connected and is located at the top of anaerobic reaction area 2 with aerobic reactor zone 6, and the interior biology that is equipped with turns Disk;The outlet of aerobic reactor zone 6 is connected with High-rate sedimentation area 13, and the entrance in High-rate sedimentation area 13 is equipped with coagulant dosage Mouth 10, the top in High-rate sedimentation area 13 are equipped with water outlet 14, and bottom is equipped with excess sludge discharge outlet 15.
Processing method of the present invention compared with prior art, has the advantages that:
(1) low energy consumption:Pass through the energy storage in high level storage pond first, system can realize ultralow power operation;Its subsystem without It needs to be aerated, is not required to returned sludge, minimize system operation energy consumption, ton water consume electricity is minimum can be down to 0.1kWh.
(2) tupe can flexible choice control:Ultralow power conventional operation mould is selected according to view demand the case where water inlet Formula, or the operational mode of the efficient decarburization dephosphorization of selection, there is circulation loop between aerobic reactor zone and anaerobic reaction area Channel achievees the purpose that intensified denitrification and dephosphorization efficiency by internal circulation system.
(3) anti impulsion load ability is strong:There is Regulation Function in high level storage pond first, if influent quality has fluctuation Situation, controllable adjustable handle water;Secondly it is furnished with light filler in Anaerobic Treatment area, in conjunction with the interior circulation formed with aerobic zone System has extremely strong adaptability and operation stability to the variation of influent quality, water.
(4) treatment process is to sanitary sewage disposal excellent effect, the five basic conventional indexs of water quality of sewage after processing (including pH, COD, ammonia nitrogen, SS, total phosphorus) meets《Urban wastewater treatment firm pollutant emission standard》(GB 18918-2002) one Grade emission standard A.
Detailed description of the invention
Fig. 1 is that the present invention is illustrated using anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method and process process Figure.
Fig. 2 is anaerobism-catalytic oxidation biofilm reactor structural schematic diagram that the method for the present invention uses.
In figure:1- water inlet, 3- anaerobic organism filler, the input end of the vertical water inlet pipe of 4-, follows in 5- 2- anaerobic reaction area Ring pump, the aerobic reactor zone 6-, 7- biological rotating disk, 8- check valve, the water inlet of 9- efficient settler, 10- coagulant dosage mouth, 11- pipe-line mixer, 12- water distributor, 13- High-rate sedimentation area, 14- water outlet, 15- excess sludge discharge outlet, 16- are vertically intake Pipe.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Fig. 2, anaerobism of the present invention-catalytic oxidation biofilm reactor is in vertical structure, it includes successively connecting Anaerobic reaction area 2, aerobic reactor zone 6 and High-rate sedimentation area 13, anaerobic reaction area 2 are located at the lower section of reactor, and left side is equipped with The water inlet 1 being connected with high level storage pond, there is the differential water pressures of 1-3m between high level storage pond and anaerobic reaction area 2, a high position is adjusted The storage capacity of reservoir is 6h inflow.Anaerobic organism filler 3 is provided in anaerobic reaction area 2, positioned at 1 other side of water inlet Internal circulation pump 5 is fixedly mounted by guide rod in water outlet, and is provided with vertical water inlet pipe 16, internal circulation pump 5 and vertical water inlet pipe 16 Outlet be connected with aerobic reactor zone 6, the input end 4 of vertical water inlet pipe is located in anaerobic reaction area 2, vertical water inlet pipe Outlet end is located at 6 top of aerobic reactor zone, and the sewage of aerobic reactor zone 6 enters aerobic reactor zone 6 by hydraulic pressure, thus hands-free liter Power reduces operation power source.
Aerobic reactor zone 6 is located at the top of anaerobic reaction area 2, and aerobic reactor zone 6 is provided with several biological rotating disks 7, biology 7 apposition growth biomembrane of turntable, 1.5~3 revs/min of biological rotating disk revolving speed, the periphery linear velocity of disk is set as 15 ms/min or so.Disk Axis is higher by the water surface, and disk 40% is under water, and 60% exposure is in air.When dish axle rotates, disk alternating and useless water and air Contact.Disk grows the membranoid substance to be formed for attached microbial and is covered, and adheres to liquid film, aerobe film, simultaneous from outside to inside Oxygen biomembrane, anaerobe film, biomembrane overall thickness can reach 0.5~1.0mm.The HRT of aerobic reactor zone is 8~10 small When.Sewage after Anaerobic Treatment into aerobic reactor zone reacts the pollutant, it can be achieved that higher efficiency with biofilm contact Removal effect.
Aerobic reactor zone 6 is equipped with the check valve 8 being connected with anaerobic reaction area 2 in its water outlet side, makes aerobic reactor zone 6 It can be formed between anaerobic reaction area 2 and communicate up and down and form circulation loop channel.High-rate sedimentation area 13 is located at aerobic reaction The side in area 6 is arranged partition and separates between the top and aerobic reactor zone 6 in High-rate sedimentation area 13, the middle part in High-rate sedimentation area 13 It is connected with the water outlet of aerobic reactor zone 6, the water outlet of aerobic reactor zone 6 flows into High-rate sedimentation area, can be gone out with some Water passes back into anaerobic reaction area 2 by check valve 8.13 top of High-rate sedimentation area is provided with the High-rate sedimentation of inclined plate or other structures Device makes mixed liquor carry out mud-water separation.The input end of pipe-line mixer 11 is connected with the water outlet of aerobic reactor zone 6, and sets There is coagulant dosage mouth 10, coagulant puts into pipe-line mixer 11 by coagulant dosage mouth 10.Pipe-line mixer 11 goes out Mouth end is connect with water distributor 12, and the outlet of water distributor 12 and the water inlet 9 of efficient settler connect.The top in High-rate sedimentation area 13 Equipped with water outlet 14, the supernatant in High-rate sedimentation area 13 is emitted through water outlet 14, and the bottom in High-rate sedimentation area 13 is equipped with surplus Remaining mud discharging mouth 15.
Depending on sewage quality situation, start internal circulation pump 5 when selection starting internal circulation system when sewerage nitrogen and phosphor concentration is higher, And check valve 4 is opened, the sewage of aerobic reactor zone effluent recycling to anaerobic reaction area, reflux divides the cutting of anaerobic organism filler It dissipates, forms a wide range of turbulent flow in anaerobic reaction area, being conducive to, which contacts sewage more uniformly with anaerobe, occurs a system Complicated and diversified biochemical reaction is arranged, phosphorus and generating unit are released in decomposition, aminating reaction, thermophilic phosphorus bacterium including larger molecular organics The anti-nitration reaction and Anammox of component react, the concerted reaction of formation.Internal circulating load and reaction time realize flexibly control, Control can be taken the circumstances into consideration to increase interior internal circulating load and be prolonged in the case where water quality situation is special between 50~200% under interior internal circulating load regular situation 2~5 hours long reaction time is to promote treatment effect.Both intensified denitrification and dephosphorization efficiency, and increase reactor assembly microbial species The complexity of class, when coping with different influent quality situations, the anti-fluctuation ability of system, i.e. stability is guaranteed.
Sewage enters aerobic reactor zone 6 automatically by vertical water inlet pipe 16 when selection does not start internal circulation system.
The method of the present invention is described further in conjunction with Fig. 1 and following instance:
Embodiment 1:
Certain township sanitary sewage, sewage original water quality situation are handled using the method for the present invention:pH:7.2,CODcr:280mg/L, BOD5:150mg/L,SS:58mg/L,NH4 +-N:28mg/L,TP:5.5mg/L.
Start the high-efficient denitrification and dephosphorization mode of internal circulation system:
1) the small towns sewage being collected into carries out water in high level storage pond and regulates and stores and preformed precipitate, with subsequent step 2) react The differential water pressures of device formation 3m.
2) sewage of the control Jing Guo step 1) preformed precipitate enters anaerobism-catalytic oxidation biofilm reactor by gravity stream. Sewage initially enters reactor anaerobic reaction area, and anaerobic organism filler is arranged for anaerobe apposition growth in anaerobic reaction area, It is 6 hours that anaerobic organism filler, which is 80%, HRT in anaerobic reaction area filling rate, and anaerobic reaction area dissolved oxygen concentration is 0.3mg/ L, pH control are 6.5;The sewage being recycled back in into the sewage mixing aerobic zone of anaerobic zone by biologic packing material cutting dispersion, from And a wide range of turbulent flow is formed in anaerobic reaction area, a series of complex occurs conducive to sewage is contacted more uniformly with anaerobe The biochemical reaction of multiplicity, decomposition, aminating reaction, thermophilic phosphorus bacterium including larger molecular organics release phosphorus and partial amount occur Anti-nitration reaction and Anammox reaction, the concerted reaction of formation.
The sewage of anaerobic reaction area enters aerobic reactor zone by the vertical water inlet pipe risen by hydraulic pressure.
Biological rotating disk is arranged in aerobic reactor zone, and 3 revs/min of biological rotating disk revolving speed, disk 40% is under water, and 60% is exposed to In air.When dish axle rotates, disk is alternately contacted with useless water and air.Disk grows the membranoid substance to be formed institute for attached microbial Covering, adheres to liquid film, aerobe film, facultative aerobic character biomembrane, anaerobe film from outside to inside, and biomembrane overall thickness reaches 1.0mm.The HRT of aerobic reactor zone is 10 hours.Enter the sewage and biofilm contact of aerobic reactor zone after Anaerobic Treatment Reaction is, it can be achieved that the pollutant removal of higher efficiency acts on.
It recycles in activation system, aerobic reactor zone effluent recycling to anaerobic reaction area, is controlled under interior internal circulating load regular situation Between 50%, and extend the reaction time 2 hours to promote treatment effect.Both intensified denitrification and dephosphorization efficiency, and increase reaction The complexity of device system microbe species, when coping with different influent quality situations, the anti-fluctuation ability of system, i.e. stability is obtained To guarantee.
After biochemical treatment, sewage enters anaerobism-catalytic oxidation biofilm reactor High-rate sedimentation area, settling zone into Coagulant dosage is arranged in water pipe section, adds medicament and selects novel coagulant polyaluminum ferric chloride, dosage 5mg/L, in pipeline Hybrid reaction in mixer, from settling zone, water distributor water distribution enters efficient sedimentation tank.Sedimentation basin fills inclined plate, and mixed liquor carries out mud After water separation, supernatant qualified discharge.
After processing, effluent quality is sewage:pH:7.0,CODcr:45mg/L,BOD5:10mg/L,SS:10mg/L,NH4 +- N:4.5mg/L,TP:0.5mg/L.Meet《Urban wastewater treatment firm pollutant emission standard》(GB 18918-2002) level-one A row Put standard.
Embodiment 2:
Certain township's sanitary sewage, sewage original water quality situation are handled using the method for the present invention:CODcr:160mg/L,BOD5: 100mg/L、NH4 +-N:16mg/L,TP:3mg/L.
Using super low energy consumption operational mode, i.e., do not start internal circulation system.
1) the small towns sewage being collected into carries out water in high level storage pond and regulates and stores and preformed precipitate, with subsequent step 2) react The differential water pressures of device formation 1m.
2) sewage of the control Jing Guo step 1) preformed precipitate enters anaerobism-catalytic oxidation biofilm reactor by gravity stream. Sewage initially enters reactor anaerobic reaction area, and anaerobic organism filler is arranged for anaerobe apposition growth in anaerobic reaction area, It is 4 hours that anaerobic organism filler, which is 50%, HRT in anaerobic reaction area filling rate, and anaerobic reaction area dissolved oxygen concentration is in 0.5mg/ L, pH 7.2;The sewage being recycled back in into the sewage mixing aerobic zone of anaerobic zone by biologic packing material cutting dispersion, to Anaerobic reaction area forms a wide range of turbulent flow, and a series of complex multiplicity occurs conducive to sewage is contacted more uniformly with anaerobe Biochemical reaction, decomposition, aminating reaction, thermophilic phosphorus bacterium including larger molecular organics release phosphorus and occur partial amount anti-nitre Change reaction and Anammox reaction, the concerted reaction of formation.
The sewage of anaerobic reaction area enters aerobic reactor zone by the vertical water inlet pipe risen by hydraulic pressure.Aerobic reactor zone is raw 1.5 revs/min of object rotary speed.When dish axle rotates, disk is alternately contacted with useless water and air.Disk grows shape for attached microbial At membranoid substance covered, from outside to inside adhere to liquid film, aerobe film, facultative aerobic character biomembrane, anaerobe film, biology Film overall thickness can reach 0.5mm.The HRT of aerobic reactor zone is 8 hours.Enter the sewage of aerobic reactor zone after Anaerobic Treatment It is reacted with biofilm contact, realizes the pollutant removal effect of higher efficiency.
After biochemical treatment, sewage enters anaerobism-catalytic oxidation biofilm reactor High-rate sedimentation area, from settling zone cloth Water pipe water distribution enters efficient sedimentation tank.Sedimentation basin fills inclined plate, after mixed liquor carries out mud-water separation, supernatant qualified discharge.
Sewage after processing, CODcr:35mg/L,BOD5:8mg/L,NH4 +-N:4.6mg/L,TP:0.45mg/L.Meet《City Town Wastewater Treatment discharge standard》(GB 18918-2002) level-one emission standard A.
Embodiment 3:
Certain urban wastewater treatment firm sanitary sewage, sewage original water quality situation are handled using the method for the present invention:pH:7.1, CODcr:350mg/L,BOD5:190mg/L,SS:70mg/L,NH4 +-N:35mg/L,TP:5mg/L.
Start the high-efficient denitrification and dephosphorization mode of internal circulation system:
1) the small towns sewage being collected into carries out water in high level storage pond and regulates and stores and preformed precipitate, with subsequent step 2) react The differential water pressures of device formation 2m.
2) sewage of the control Jing Guo step 1) preformed precipitate enters anaerobism-catalytic oxidation biofilm reactor by gravity stream. Sewage initially enters reactor anaerobic reaction area, and anaerobic organism filler is arranged for anaerobe apposition growth in anaerobic reaction area, It is 5 hours that anaerobic organism filler, which is 60%, HRT in anaerobic reaction area filling rate, and anaerobic reaction area dissolved oxygen concentration is 0.4mg/ L, pH control are 6.7;The sewage being recycled back in into the sewage mixing aerobic zone of anaerobic zone by biologic packing material cutting dispersion, from And a wide range of turbulent flow is formed in anaerobic reaction area, a series of complex occurs conducive to sewage is contacted more uniformly with anaerobe The biochemical reaction of multiplicity, decomposition, aminating reaction, thermophilic phosphorus bacterium including larger molecular organics release phosphorus and partial amount occur Anti-nitration reaction and Anammox reaction, the concerted reaction of formation.
The sewage of anaerobic reaction area enters aerobic reactor zone by the vertical water inlet pipe risen by hydraulic pressure.
Biological rotating disk is arranged in aerobic reactor zone, and 2.5 revs/min of biological rotating disk revolving speed, disk 40% is under water, 60% exposure In air.When dish axle rotates, disk is alternately contacted with useless water and air.Disk grows the membranoid substance to be formed for attached microbial It is covered, adheres to liquid film, aerobe film, facultative aerobic character biomembrane, anaerobe film from outside to inside, biomembrane overall thickness reaches To 0.8mm.The HRT of aerobic reactor zone is 9 hours.Enter the sewage and biofilm contact of aerobic reactor zone after Anaerobic Treatment Reaction is, it can be achieved that the pollutant removal of higher efficiency acts on.
It recycles in activation system, aerobic reactor zone effluent recycling to anaerobic reaction area, is controlled under interior internal circulating load regular situation It is 200%, and extends the reaction time 5 hours to promote treatment effect.Both intensified denitrification and dephosphorization efficiency, and increase reactor system The complexity of system microbe species, when coping with different influent quality situations, the anti-fluctuation ability of system, i.e. stability is protected Card.
After biochemical treatment, sewage enters anaerobism-catalytic oxidation biofilm reactor High-rate sedimentation area, settling zone into Coagulant dosage is arranged in water pipe section, adds medicament and selects novel coagulant polyaluminum ferric chloride, dosage 10mg/L, in pipeline Hybrid reaction in mixer, from settling zone, water distributor water distribution enters efficient sedimentation tank.Sedimentation basin fills inclined plate, and mixed liquor carries out mud After water separation, supernatant qualified discharge.
After processing, effluent quality is sewage:pH:7.0,CODcr:39mg/L,BOD5:8mg/L,SS:9mg/L,NH4 +-N: 3.5mg/L,TP:0.42mg/L.Meet《Urban wastewater treatment firm pollutant emission standard》(GB 18918-2002) level-one A row Put standard.
Embodiment 4:
Certain residential block sewage treatment plant sanitary sewage, sewage original water quality situation are handled using the method for the present invention:pH:6.8, CODcr:330mg/L,BOD5:200mg/L,SS:63mg/L,NH4 +-N:28mg/L,TP:4mg/L.
Start the high-efficient denitrification and dephosphorization mode of internal circulation system:
1) the small towns sewage being collected into carries out water in high level storage pond and regulates and stores and preformed precipitate, with subsequent step 2) react The differential water pressures of device formation 1m.
2) sewage of the control Jing Guo step 1) preformed precipitate enters anaerobism-catalytic oxidation biofilm reactor by gravity stream. Sewage initially enters reactor anaerobic reaction area, and anaerobic organism filler is arranged for anaerobe apposition growth in anaerobic reaction area, It is 5 hours that anaerobic organism filler, which is 60%, HRT in anaerobic reaction area filling rate, and anaerobic reaction area dissolved oxygen concentration is 0.4mg/ L, pH control are 6.8;The sewage being recycled back in into the sewage mixing aerobic zone of anaerobic zone by biologic packing material cutting dispersion, from And a wide range of turbulent flow is formed in anaerobic reaction area, a series of complex occurs conducive to sewage is contacted more uniformly with anaerobe The biochemical reaction of multiplicity, decomposition, aminating reaction, thermophilic phosphorus bacterium including larger molecular organics release phosphorus and partial amount occur Anti-nitration reaction and Anammox reaction, the concerted reaction of formation.
The sewage of anaerobic reaction area enters aerobic reactor zone by the vertical water inlet pipe risen by hydraulic pressure.
Biological rotating disk is arranged in aerobic reactor zone, and 3 revs/min of biological rotating disk revolving speed, disk 40% is under water, and 60% is exposed to In air.When dish axle rotates, disk is alternately contacted with useless water and air.Disk grows the membranoid substance to be formed institute for attached microbial Covering, adheres to liquid film, aerobe film, facultative aerobic character biomembrane, anaerobe film from outside to inside, and biomembrane overall thickness reaches 1.0mm.The HRT of aerobic reactor zone is 8 hours.Sewage and biofilm contact after Anaerobic Treatment into aerobic reactor zone is anti- It answers, it can be achieved that the pollutant removal of higher efficiency acts on.
It recycles in activation system, aerobic reactor zone effluent recycling to anaerobic reaction area, is controlled under interior internal circulating load regular situation It is 100%, and extends the reaction time 3 hours to promote treatment effect.Both intensified denitrification and dephosphorization efficiency, and increase reactor system The complexity of system microbe species, when coping with different influent quality situations, the anti-fluctuation ability of system, i.e. stability is protected Card.
After biochemical treatment, sewage enters anaerobism-catalytic oxidation biofilm reactor High-rate sedimentation area, settling zone into Coagulant dosage is arranged in water pipe section, adds medicament and selects novel coagulant polyaluminum ferric chloride, dosage 6mg/L, in pipeline Hybrid reaction in mixer, from settling zone, water distributor water distribution enters efficient sedimentation tank.Sedimentation basin fills inclined plate, and mixed liquor carries out mud After water separation, supernatant qualified discharge.
After processing, effluent quality is sewage:pH:7.1,CODcr:36mg/L,BOD5:10mg/L,SS:8mg/L,NH4 +- N:4mg/L,TP:0.46mg/L.Meet《Urban wastewater treatment firm pollutant emission standard》(GB 18918-2002) level-one A row Put standard.

Claims (7)

1. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, which is characterized in that it includes following place Manage step:
1) sanitary sewage being collected into water is carried out in high level storage pond to regulate and store and preformed precipitate;
2) step 1) treated sewage is entered into anaerobic reaction area by flow by gravity, anaerobic reaction area is provided with anaerobic organism Filler is for anaerobe apposition growth;Anaerobic organism media-filling rate in the anaerobic reaction area is that 50~80%, HRT is 4~6 hours;
3) step 2) treated sewage being flowed upwardly into aerobic reactor zone by hydraulic pressure, aerobic reactor zone is provided with biological rotating disk, Sewage after Anaerobic Treatment into aerobic reactor zone is reacted with biofilm contact, realizes that the pollutant removal of higher efficiency is made With;
4) after the biochemical treatment of step 3), sewage is introduced into High-rate sedimentation area, the entrance in High-rate sedimentation area is thrown equipped with coagulant Add mouth, hybrid reaction is carried out by dosing coagulant, mixed liquor is after mud-water separation is handled, supernatant qualified discharge, remaining dirty Mud extraction;
It is equipped with circulation loop channel between the aerobic reactor zone and anaerobic reaction area, makes the sewage backflow of aerobic reactor to detesting In oxygen reaction zone, the sewage of reflux, which cuts anaerobic organism filler, to be dispersed, and is formed a wide range of turbulent flow in anaerobic reaction area, is formed Concerted reaction;The internal circulating load in the circulation loop channel controls between 50~200%;The anaerobic reaction area dissolved oxygen concentration In 0.5mg/L hereinafter, pH control is 6.5~7.2.
2. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, feature according to claim 1 It is there are the differential water pressures of 1~3m between the high level storage pond of step 1) and the anaerobic reaction area of step 2).
3. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, feature according to claim 2 It is, the storage capacity in the high level storage pond is 6h inflow.
4. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, feature according to claim 1 It is, the biological rotating disk revolving speed in the step 3) aerobic reactor zone is 1.5~3 revs/min, and the periphery linear velocity of biological rotating disk is set It is 15 ms/min, the HRT of aerobic reactor zone is 8~10 hours.
5. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, feature according to claim 4 It is, the dish axle of the biological rotating disk is higher by the water surface, and disk has 40% to soak in water, and in air, biomembrane is total for 60% exposure Thickness reaches 0.5~1.0mm.
6. utilizing anaerobism-catalytic oxidation biofilm reactor processing sanitary sewage method, feature according to claim 1 It is, in step 4), the coagulant added is polyaluminum ferric chloride, and dosage is 5~10mg/L.
7. implementing anaerobism-catalytic oxidation biofilm reactor that claim 1 the method uses, which is characterized in that it includes The anaerobic reaction area (2) that successively connects, aerobic reactor zone (6) and High-rate sedimentation area (13), anaerobic reaction area (2) are located at reactor Lower section, and be equipped with water inlet (1), it is interior be equipped with anaerobic organism filler;It is set between aerobic reactor zone (6) and anaerobic reaction area (2) There is circulation loop channel, make in the sewage backflow to anaerobic reaction area of aerobic reactor, the sewage of reflux is by anaerobic organism filler Cutting dispersion forms a wide range of turbulent flow in anaerobic reaction area, forms concerted reaction;Aerobic reactor zone (6) is located at anaerobic reaction The top in area (2), it is interior to be equipped with biological rotating disk;The outlet of aerobic reactor zone (6) is connected with High-rate sedimentation area (13), efficiently heavy The entrance in shallow lake area (13) is equipped with coagulant dosage mouth (10), and the top of High-rate sedimentation area (13) is equipped with water outlet (14), bottom Portion is equipped with excess sludge discharge outlet (15).
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