CN106145354B - sewage treatment process - Google Patents

sewage treatment process Download PDF

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Publication number
CN106145354B
CN106145354B CN201610721613.3A CN201610721613A CN106145354B CN 106145354 B CN106145354 B CN 106145354B CN 201610721613 A CN201610721613 A CN 201610721613A CN 106145354 B CN106145354 B CN 106145354B
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CN
China
Prior art keywords
pond
raw
sludge
raw anti
sewage treatment
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.)
Expired - Fee Related
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CN201610721613.3A
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Chinese (zh)
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CN106145354A (en
Inventor
陈德章
于国涛
梁壘
蒋召立
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.)
TANGSHAN MUNICIPAL DRAINAGE Co Ltd
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TANGSHAN MUNICIPAL DRAINAGE Co Ltd
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Priority to CN201610721613.3A priority Critical patent/CN106145354B/en
Publication of CN106145354A publication Critical patent/CN106145354A/en
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Publication of CN106145354B publication Critical patent/CN106145354B/en
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Anticipated expiration legal-status Critical

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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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/29—Chlorine compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Activated Sludge Processes (AREA)

Abstract

The present invention relates to sewage treatment, especially a kind of sewage treatment production technology.It sequentially includes the following steps: and keeps inlet pumping station high liquid level, production equipment intermittent duty, control sludge concentration, dissolved oxygen, spoil disposal, desanding.Controllable salinity and chloride ion content can be produced normally during operation, in water bust, the period that jumps, and power consumption is lower, sludge output is few.

Description

Sewage treatment process
Technical field
The present invention relates to sewage treatment, especially a kind of sewage treatment process.
Background technique
The natural conditions of coastal area sewage treatment plant are that salinity is high, chloride ion is high, and underground water penetrates into system through pipe network and returns Cause processing difficult, it is less that water is handled between trial run period, while in school accumulation regions, water bust during school has a holiday or vacation, The new term begins the features such as jumping, and also to sewage treatment and can cause certain difficulty, will affect the normal of technique structures in winter Operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of controllable salinity and chloride ion content, between trial run period, In water bust, jump during the sewage treatment process of intermittent duty that can normally produce.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of sewage treatment process, sequentially includes the following steps:
A, inlet pumping station high liquid level is kept:
Inlet pumping station liquid level is maintained at 5.0 meters, makes full packages in outside network, treatment sewage salt be divided into 2000mg/l~ 3000mg/l, chlorine root are 1200mg/l；
B, production equipment intermittent duty:
A variable frequency pump is opened, frequency 36hz keeps inflow in 150 m3The m of/h~1553/ h, while opening one Frequency conversion fan, frequency 30hz keep the raw anti-pond air demand of 1#AA/O in 500m3/ h is opened in first outside reflux pump and first Reflux pump, variable frequency pump, frequency conversion fan, reflux pump and the first external reflux pump open 8 hours, opening time simultaneously daily in first Are as follows: 2:00~4:00,8:00~10:00,14:00~16:00,20:00~22:00, the driving of 1# secondary settling tank keep opening for 24 hours It opens, the raw anti-bottom of pond of 1#AA/O, which pushes away, to be all turned on；
C, sludge concentration, dissolved oxygen are controlled:
The raw anti-pond sludge concentration control of 1#AA/O is between 1200mg/l~1600mg/l, and dissolved oxygen control is on the left side 2mg/l It is right；
D, spoil disposal:
1# secondary settling tank weekly spoil disposal twice, each spoil disposal half an hour；Efficient sedimentation tank daily spoil disposal half an hour, the odd-numbered day, row was single Number pond, even-numbered days arrange even numbers pond；
E, desanding:
Desanding basin desanding is primary weekly, and 0.1 cubic metre of desanding amount.
By adopting the above technical scheme compared with prior art, the present invention beneficial effect is:
Controllable salinity and chloride ion content can be produced normally, electricity between trial run period, in water bust, the period that jumps Consume that lower, sludge output is few.
Further, prioritization scheme of the invention is:
Before having a holiday or vacation in winter, inflow is controlled at daily 1000 cubic metres, and inlet pumping station liquid level is at 5.0 meters, to 2#AA/O Raw anti-pond fills water, and from the raw anti-pond 2#AA/O to the raw anti-pond moisturizing of 1# when operation water is too low, sludge concentration control is existed Between 1400mg/l~1700mg/l；Spoil disposal is primary weekly, and the new term begins, and first half of the month gradually increases inflow, by inlet pumping station liquid level Control is at 4.0 meters or so.
Inflow is gradually reduced in first half of the month of having a holiday or vacation summer, reduces sludge concentration, inlet pumping station liquid level is made to be maintained at 4.0 Rice；The new term begins, first half of the month gradually increases inflow, reduces spoil disposal number and improves sludge concentration, inlet pumping station liquid level is kept to exist 3.0 rice.
In winter, anti-pond observation well raw to 1#AA/O and peep hole block, and it is small that air blower at night opens 4 every time When, anti-pond winter every afternoon 14:00 raw to 2#AA/O opens reflux pump and anaerobic pond bottom in second and pushes away one hour, makes an inspection tour every time Shi Kaiqi efficient sedimentation tank residual sludge pump 5 minutes, to sludge concentration tank spoil disposal.
Both the raw anti-pond 1#AA/O and the raw anti-pond 2#AA/O laid out in parallel, the raw anti-pond 1#AA/O and the raw anti-pond difference of 2#AA/O It is connect with air blast computer room.
Efficient sedimentation tank connects filtering cloth filtering pool, and filtering cloth filtering pool connect setting, filtering cloth filtering pool and disinfecting tank with chlorination house Connection, sewage is discharged into korneforos after disinfecting tank.
Chemical sludge in High-rate sedimentation hole crosses sludge concentration tank all, after reaching plate dehydration machine room, is pressed into mud cake Carry out outward transport processing.
After the excess sludge concentration basin of 1# secondary settling tank enters plate dehydration machine room, it is pressed into mud cake and carries out outward transport processing.
The sludge being discharged from the raw anti-pond 1#AA/O enters 1# secondary settling tank, and the sludge of 1# secondary settling tank discharge passes through the first exteenal reflux Pump is again introduced into the raw anti-pond 1#AA/O, and it is raw instead that sludge by reflux pump in first is back to 1#AA/O again by the raw anti-pond 1#AA/O In pond.
Sludge in the raw anti-pond 2#AA/O enters 2# secondary settling tank, and the sludge in 2# secondary settling tank passes through the second external reflux pump again Into the raw anti-pond 2#AA/O, sludge is back to 2#AA/O again by reflux pump in second and given birth in anti-pond by the raw anti-pond 2#AA/O.
Detailed description of the invention
Fig. 1 is processing technological flow figure of the invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and embodiments:
Operation branch company Tangshan gulf ecological city factory of the area Cao Feidian is located at Tangshan coast, and 4 ten thousand stere of design scale/ It, 95 mu of occupied area, using " pretreatment+AAO bioanalysis+advanced treating " technique, effluent quality executes country-level A row Standard is put, nearby there is university city.
Influent quality is severe between trial run period, table specific as follows:
Inflow ton/day BOD(mg/l) COD(mg/l) Chlorine root (mg/l) Salinity (mg/l) Other declaration of exception
2000 50 400 2000-5000 5000-8000 Water inlet contains a small amount of crude oil
By factual survey and analysis, it is judged as that underground water penetrates into system through pipe network and causes, is taken pair for this problem Leak source is blocked, and is kept 5.0 meters of higher inlet pumping station liquid level, is made full packages in outside network, prevents Groundwater infiltration, is passed through The implementation of this measure, makes that salinity is reduced to 2000mg/l~3000mg/l or so, chlorine root is reduced to 1200mg/l or so, effectively reduces Salinity chlorine root is influenced caused by technique.
About 1300 cubic metres -1700 cubic metres or so daily of inflow during operation, less water is unfavorable for microorganism Growth, the mode of intermittent duty is taken for this phenomenon:
A variable frequency pump is opened, frequency 36hz keeps inflow at 150 cubes ms/h, while opening a change Frequency blower, frequency 30hz keep the raw anti-pond air demand of 1#AA/O in 500m3/ h(to the raw anti-pond aeration of 2#AA/O by realizing The raw anti-pond aeration control of 1#AA/O is in specified range), open reflux pump and the first external reflux pump in first, the driving of 1# secondary settling tank It keeps opening for 24 hours, the raw anti-bottom of pond of 1#AA/O, which pushes away, to be all turned on；Above-mentioned all devices open 8 hours simultaneously daily, open Time are as follows: 2:00~4:00,8:00~10:00,14:00~16:00,20:00~22:00.
The raw anti-pond sludge concentration control of 1#AA/O is between 1200mg/l-1600mg/l, and dissolved oxygen control is on the left side 2mg/l It is right.
Twice, each spoil disposal half an hour, efficient sedimentation tank daily spoil disposal half an hour, the odd-numbered day, row was single for spoil disposal weekly for 1# secondary settling tank Number pond, even-numbered days arrange even numbers pond.
Simultaneously for water is small and factual survey, sand content is small in sewage, takes the desanding basin primary mode of desanding weekly, Each about 0.1 cubic metre of amount of desanding.
Before having a holiday or vacation in winter, inflow is controlled at daily 1000 cubic metres, and inlet pumping station liquid level is at 5.0 meters, to 2#AA/O Raw anti-pond fills water, and from the raw anti-pond 2#AA/O to the raw anti-pond moisturizing of 1# when operation water is too low, sludge concentration control is existed Between 1400mg/l~1700mg/l；Spoil disposal is primary weekly, and the new term begins, and first half of the month gradually increases inflow, by inlet pumping station liquid level Control is at 4.0 meters or so.
Inflow is gradually reduced in first half of the month of having a holiday or vacation summer, reduces sludge concentration, inlet pumping station liquid level is made to be maintained at 4.0 Rice；The new term begins, first half of the month gradually increases inflow, reduces spoil disposal number and improves sludge concentration, inlet pumping station liquid level is kept to exist 3.0 rice.
In winter, anti-pond observation well raw to 1#AA/O and peep hole block, and it is small that air blower at night opens 4 every time When, anti-pond winter every afternoon 14:00 raw to 2#AA/O opens reflux pump and anaerobic pond bottom in second and pushes away one hour, makes an inspection tour every time Shi Kaiqi efficient sedimentation tank residual sludge pump 5 minutes, to sludge concentration tank spoil disposal.
Both the raw anti-pond 1#AA/O and the raw anti-pond 2#AA/O laid out in parallel, the raw anti-pond 1#AA/O and the raw anti-pond difference of 2#AA/O It is connect with air blast computer room.
Efficient sedimentation tank connects filtering cloth filtering pool, and filtering cloth filtering pool connect setting, filtering cloth filtering pool and disinfecting tank with chlorination house Connection, sewage is discharged into korneforos after disinfecting tank.
Chemical sludge in High-rate sedimentation hole crosses sludge concentration tank all, after reaching plate dehydration machine room, is pressed into mud cake Carry out outward transport processing.
After the excess sludge concentration basin of 1# secondary settling tank enters plate dehydration machine room, it is pressed into mud cake and carries out outward transport processing.
The sludge being discharged from the raw anti-pond 1#AA/O enters 1# secondary settling tank, and the sludge of 1# secondary settling tank discharge passes through the first exteenal reflux Pump is again introduced into the raw anti-pond 1#AA/O, and it is raw instead that sludge by reflux pump in first is back to 1#AA/O again by the raw anti-pond 1#AA/O In pond.
Sludge in the raw anti-pond 2#AA/O enters 2# secondary settling tank, and the sludge in 2# secondary settling tank passes through the second external reflux pump again Into the raw anti-pond 2#AA/O, sludge is back to 2#AA/O again by reflux pump in second and given birth in anti-pond by the raw anti-pond 2#AA/O.
Pumping plant management:
5 pumping plants are maked an inspection tour daily, each pumping plant rubbish of periodic cleaning, daily pumping plant is opened by what liquidometer was pumped Stop and host computer fixed point starts grid, when on-the-spot make an inspection tour, manually opened each equipment checked whether its operation is normal；Simultaneously To in factory's outside ductwork rubbish and well lid quantity make an inspection tour weekly.
Since the sewage of processing is almost entirely from university city, the particularity that university city has a holiday or vacation twice is faced, for this Situation is taken measures on customs clearance in advance, it is ensured that the stabilization of technique, specific as follows:
Reasonable Regulation And Control water before having a holiday or vacation in winter fills water to 2# system, it is ensured that by 2# system when winter operation water is too low System discharges water, to 1# system water supplement, it is ensured that the normal table of technique is run；Spoil disposal number reduces, and spoil disposal is primary weekly, and sludge is dense Degree control is between 1400mg/l-1700mg/l；Inflow gradually reduces, control at daily 1000 cubic metres or so, keep into Pump house liquid level is at 5.0 meters；The new term begins, and first half of the month gradually increases inflow, by inlet pumping station Liquid level at 4.0 meters or so.
Inflow is gradually reduced in first half of the month of having a holiday or vacation summer, reduces sludge concentration, inlet pumping station liquid level is made to be maintained at 4.0 Rice or so, preventing liquid level from crossing, low wash water is few and the excessively high rainy season set water of liquid level greatly impacts technique；The new term begins first half of the month by Step increases inflow, reduces spoil disposal number and improves sludge concentration, keeps inlet pumping station liquid level at 3.0 meters or so, prevent university city Water that the new term begins uprushes and causes inlet pumping station liquid level excessively high and the impact caused by technique.
In winter, it to reduce the influence to system of low temperature and low wash water and preventing structures ice condition, takes with lower section Formula is controlled:
1, water intake mode still takes intermittent duty mode, and runing time is consistent with the above, but pump frequency of intaking is reduced to 33hz or so.
2, directly surmount fine fack system to reduce water temperature loss and taking, sewage is directly entered the raw anti-pond 1#AA/O, at this time Sand content is seldom in sewage, will not impact to process operation；Fine fack is vented simultaneously, to the exposed position such as blow-down pipe It sets and installs heat-preservation cotton and heating tape additional.
3, anti-pond observation well raw to 1#AA/O and peep hole block, and reduce heat losses.
4, night air blower is opening 4 hours every time, prevents nocturnal temperature rapid drawdown from microbial activity being caused to be affected.
5, the idle meter probe such as 2#AA/O system storehouse is put into save.
6, anti-pond winter every afternoon 14:00 raw to 2#AA/O opens reflux pump and anaerobic pond bottom in second and pushes away one hour, Preventing pond face from freezing causes structures to be affected.
7, it is remaining dirty that efficient sedimentation tank is opened while installing heat-preservation cotton and heating tape additional to each open piping, when making an inspection tour every time Dredge pump 5 minutes, to sludge concentration tank spoil disposal, prevent sludge concentration tank pond face from freezing.
The implementation of this series of measures has been effectively ensured the stable operation of the technique under water quality harsh conditions, has reduced University city's water of having a holiday or vacation in the summer in winter is mutated impact to technique, it is ensured that the qualified discharge of water outlet；Solves winter low temperature pond face knot The occurrence of ice.
The foregoing is merely preferably feasible embodiment of the invention, not thereby limiting the scope of the invention, It is all to use equivalence changes made by description of the invention and accompanying drawing content, it is intended to be included within the scope of the present invention.

Claims (7)

1. a kind of sewage treatment process, sequentially includes the following steps:
A, inlet pumping station high liquid level is kept:
Inlet pumping station liquid level is maintained at 5.0 meters, makes full packages in outside network, treatment sewage salt be divided into 2000mg/l~ 3000mg/l, chlorine root are 1200mg/l；
B, production equipment intermittent duty:
A variable frequency pump is opened, frequency 36hz keeps inflow in 150 m3The m of/h~1553/ h, while opening a frequency conversion Blower, frequency 30hz keep the raw anti-pond air demand of 1#AA/O in 500m3/ h opens reflux pump and the first exteenal reflux in first Pump, variable frequency pump, frequency conversion fan, reflux pump and the first external reflux pump open 8 hours, opening time simultaneously daily in first are as follows: 2:00~4:00,8:00~10:00,14:00~16:00,20:00~22:00, the driving of 1# secondary settling tank keep opening for 24 hours, The raw anti-bottom of pond of 1#AA/O, which pushes away, to be all turned on；
C, sludge concentration, dissolved oxygen are controlled:
Between 1200mg/l~1600mg/l, dissolved oxygen is controlled in 2mg/l or so the raw anti-pond sludge concentration control of 1#AA/O；
D, spoil disposal:
1# secondary settling tank weekly spoil disposal twice, each spoil disposal half an hour；Efficient sedimentation tank daily spoil disposal half an hour, odd-numbered day arrange odd numbers Pond, even-numbered days arrange even numbers pond；
E, desanding:
Desanding basin desanding is primary weekly, and 0.1 cubic metre of desanding amount；
Before having a holiday or vacation in winter, at daily 1000 cubic metres, inlet pumping station liquid level is raw to 2#AA/O anti-at 5.0 meters for inflow control Pond fills water, and from the raw anti-pond 2#AA/O to the raw anti-pond moisturizing of 1# when operation water is too low, sludge concentration is controlled in 1400mg/l Between~1700mg/l；Spoil disposal is primary weekly, and the new term begins, and first half of the month gradually increases inflow, and inlet pumping station Liquid level is existed 4.0 meters or so；
Inflow is gradually reduced in first half of the month of having a holiday or vacation summer, reduces sludge concentration, inlet pumping station liquid level is made to be maintained at 4.0 meters； The new term begins, first half of the month gradually increases inflow, reduces spoil disposal number and improves sludge concentration, keeps inlet pumping station liquid level 3.0 Rice；
Both the raw anti-pond 1#AA/O and the raw anti-pond 2#AA/O laid out in parallel, the raw anti-pond 1#AA/O and the raw anti-pond 2#AA/O respectively with drum Ventilator Room connection.
2. sewage treatment process according to claim 1, it is characterised in that: in winter, observe well to the raw anti-pond 1#AA/O And peep hole is blocked, air blower is opened 4 hours every time at night, and anti-pond winter every afternoon 14:00 raw to 2#AA/O is opened It opens reflux pump and anaerobic pond bottom in second to push away one hour, be opened efficient sedimentation tank residual sludge pump 5 minutes when making an inspection tour every time, to dirt Mud thickener spoil disposal.
3. sewage treatment process according to claim 1, it is characterised in that: efficient sedimentation tank connects filtering cloth filtering pool, filter cloth Filter tank connect setting with chlorination house, and filtering cloth filtering pool is connect with disinfecting tank, and sewage is discharged into korneforos after disinfecting tank.
4. sewage treatment process according to claim 1, it is characterised in that: the chemical sludge in High-rate sedimentation hole passes through dirt Mud thickener is pressed into mud cake and carries out outward transport processing after reaching plate dehydration machine room.
5. sewage treatment process according to claim 1, it is characterised in that: the excess sludge concentration basin of 1# secondary settling tank enters After plate dehydration machine room, it is pressed into mud cake and carries out outward transport processing.
6. sewage treatment process according to claim 1, it is characterised in that: the sludge being discharged from the raw anti-pond 1#AA/O enters The sludge of 1# secondary settling tank, the discharge of 1# secondary settling tank is again introduced into the raw anti-pond 1#AA/O, the raw anti-pond 1#AA/O by the first external reflux pump Sludge is back in the raw anti-pond 1#AA/O again by reflux pump in first.
7. sewage treatment process according to claim 1, it is characterised in that: the sludge in the raw anti-pond 2#AA/O enters 2# Secondary settling tank, the sludge in 2# secondary settling tank are again introduced into the raw anti-pond 2#AA/O by the second external reflux pump, and 2#AA/O is raw, and anti-pond passes through Sludge is back in the raw anti-pond 2#AA/O by reflux pump again in second.
CN201610721613.3A 2016-08-25 2016-08-25 sewage treatment process Expired - Fee Related CN106145354B (en)

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CN106145354B true CN106145354B (en) 2019-01-01

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Publication number Priority date Publication date Assignee Title
CN109626557B (en) * 2018-12-19 2023-07-18 深圳信息职业技术学院 Membrane bioreactor capable of automatically adjusting MLSS concentration

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774690A (en) * 2010-01-12 2010-07-14 东华大学 Device for improving AAO treated dyeing wastewater and method thereof
CN105152480A (en) * 2015-09-14 2015-12-16 柴建中 Municipal sewage treatment method
CN205398373U (en) * 2016-01-18 2016-07-27 温州博远工业设计有限公司 Municipal administration wastewater recovery processing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774690A (en) * 2010-01-12 2010-07-14 东华大学 Device for improving AAO treated dyeing wastewater and method thereof
CN105152480A (en) * 2015-09-14 2015-12-16 柴建中 Municipal sewage treatment method
CN205398373U (en) * 2016-01-18 2016-07-27 温州博远工业设计有限公司 Municipal administration wastewater recovery processing system

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