CN1736907A - Deep cleaning treatment process for city effluent - Google Patents
Deep cleaning treatment process for city effluent Download PDFInfo
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- CN1736907A CN1736907A CN 200510019107 CN200510019107A CN1736907A CN 1736907 A CN1736907 A CN 1736907A CN 200510019107 CN200510019107 CN 200510019107 CN 200510019107 A CN200510019107 A CN 200510019107A CN 1736907 A CN1736907 A CN 1736907A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004140 cleaning Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title claims description 37
- 239000010865 sewage Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000003610 charcoal Substances 0.000 claims abstract description 28
- 238000005273 aeration Methods 0.000 claims abstract description 24
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 238000004332 deodorization Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 230000000035 biogenic effect Effects 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000002352 surface water Substances 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 19
- 239000003921 oil Substances 0.000 description 16
- 238000000746 purification Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000010802 sludge Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 244000005700 microbiome Species 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000002906 microbiologic effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 241000256113 Culicidae Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
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- 238000012851 eutrophication Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
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- 150000003384 small molecules Chemical class 0.000 description 1
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- 235000013311 vegetables Nutrition 0.000 description 1
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Images
Abstract
The invention provides a deep cleaning treatment technique for urban sewage. Wherein, the deoiled waste water enters anaerobic pond and oxidation pond, then is deep cleared past the micropore ceramics pond, biological deposition pond, charcoal aeration tank, charcoal decolouration and deozonization pond. The out water achieves natonal III-grade water quality standard for surface water. This invention can prolong effectively the biological chain length and has well treatment ability.
Description
Affiliated technical field
The present invention relates to the treatment process of a kind of eutrophication water, trade effluent or sanitary sewage, specifically be meant a kind of treatment process of low concentration wastewater, mainly be meant a kind of city domestic sewage process for deeper purifying.
Background technology
Conventional municipal effluent second-stage treatment technology mainly contains: A
2/ O technology, oxidation Ditch Technology, SBR process sequence, biomembrance process, biological treatment+artificial wetland process etc.A
2/ O technology, the dephosphorization denitrogenation function is better, but technology controlling and process point is many, the management expectancy height, and investment is big; Oxidation Ditch Technology, stable, treatment effect is good, and sludge yield is little, but it is low to load, and floor space is bigger, easily grows mosquitos and flies, and the lake and the environment of periphery also easily polluted in mismanagement; The SBR process sequence comprises cyclic activated sludge system, IDEAS (should change ICEAS into) technology, UNITANK technology and MSBR technology etc., and its technical process is simple, floor space is little, can realize the requirement of dephosphorization denitrogenation, but complicated automatic control requirement is arranged, one-time investment is bigger, and the system maintenance expense is higher; Biomembrance process, dwell time of sewage is short, and decontamination effect improving is better, and floor space is less, but equipment energy consumption is higher, the working cost height; Biological treatment+artificial wetland process, working cost is low, and operational administrative is easy, can coordinate layout with surrounding environment, but processing efficiency is lower, and floor space is bigger, and bigger limitation is arranged in the application.Above technology can only satisfy national composite wastewater emission standard to domestic sewage treating, at the many rivers and lakes water quality deteriorations of China, and the today of losing self-purification capacity gradually, this class sewage emissions will increase the weight of the burden of rivers and lakes, causes the further decline of ambient water quality.Therefore, urban sewage treatment system is proposed higher controlling index, strengthen purifying treatment, make the water quality that enters rivers and lakes reach national surface water III class water quality standard, become the certainty of national requirements for environmental protection sewage.Also there are treatment unit such as simple employing membrane reactor or gac that purifying domestic sewage is handled and reached national surface water III class water quality standard, but its complex process equipment, the sewage disposal cycle is long, processing output is little, and facility investment is big, the energy consumption height, the operation and maintenance cost height is difficult to promote the use of.
Summary of the invention
The objective of the invention is to overcome the existing in prior technology deficiency, and then a kind of deep cleaning treatment process for city effluent is provided.This method operational path is simple, invests lessly, and running maintenance is convenient.
Technical solution of the present invention is a kind of deep cleaning treatment process for city effluent, may further comprise the steps:
1) treatment sewage is introduced separated greasy dirt in the oil trap;
2) will separate that smeary sewage introduces successively that equalizing tank, anaerobic pond and oxidation pond decompose, oxidation and degraded;
3) will introduce micropore ceramics filter tank separate solid and liquid through the sewage of anaerobism and oxide treatment;
4) the isolated sewage of step 3) is introduced further oxygenolysis in biogenic sediment pond and precipitated impurities, with the isolated mud of step 3) with pump suction mud concentration tank or the anaerobic pond that is communicated with the mud concentration tank;
5) it is the aeration tank that the sewage of step 4) being handled is introduced charcoal, behind organic impurity in the absorption water of decomposition, discharges to outside atmosphere again;
The mode of flowing automatically is taked in the introducing of sewage and discharge in the above step.
Treatment sewage in the step 1) of the present invention is earlier through grid filtration.
Adopt biological activated carbon to carry out aeration in step 5) of the present invention, it is upward flow chamber in the aeration tank that biological activated carbon places charcoal.
The present invention is filled with Wingdale in charcoal is the top liquid level of upward flow chamber, aeration tank.Phosphorus in the sewage acts on the generation calcium phosphate precipitation with it, removes the phosphorus in the sewage.。
Charcoal of the present invention is to add charcoal decoloration and deodorization pond behind the aeration tank in addition, after step 5) treated water introducing charcoal decoloration and deodorization pond is filtered, discharges to outside atmosphere again.
The present invention can introduce oil reservoir with the clc layer on oil trap top.
The mud of suction mud concentration tank transports after delivering to the pressure filter compression in the step 4) of the present invention.
Theoretically, adopting existing hi-tech means is no problem with municipal sewage treatment to the emission standard that satisfies national surface water quality, but investment is big often, and treatment capacity is little, and the operation and maintenance cost height is difficult to use on actual engineering.As adopt the effect of active carbon purifying sewage extensively to be approved, but use the active carbon purifying device to handle city domestic sewage merely, the pollutent of its high density can quicken the saturated of gac, makes it lose detergent power very soon.Active carbon purifying device and anaerobism, oxidation (changing into aerobic better herein) and micropore ceramics filter tank organically combine in the technology of the present invention, optimize the configuration of process combination and equipment as much as possible, to prolong the time limit of service of gac, this has directly reduced the cost that sewage purification is handled undoubtedly, improve processing efficiency, can satisfy the actual needs that the city domestic sewage deep purifying is handled.
Beneficial effect of the present invention: 1, analyze the composition and the composition of existing city domestic sewage, design purification process technique targetedly, isolate bigger organic pollutant of volume and the grease in the sewage, alleviated the difficulty of subsequent handling purifying treatment, not only the technology cost is lower, has also improved purification efficiency.And in time adopt micropore ceramics filter tank and active carbon purifying device, and both guaranteed the quality of water outlet, the time limit of service of micropore ceramics and biological activated carbon is prolonged, prolonged the cycle of operation of above device.2, further investigate the technical characterstic of various urban sewage treatment process, carry out process combination by its advantage, different steps in the sewage purification processing, the process that corresponding selection is different, farthest bring into play the biological purification that various microorganisms cooperatively interact, bring into play the purification function of microorganism advantage group in different ponds and the different depths environment, prolonged biologic chain length in the pond (hydrobiont, protozoon, microorganism etc.), effluent characteristics improves, reach national surface water III class water quality standard, realized the target that deep purification of waste water is handled preferably.3, sewage carries out the deep purifying processing of water quality substantially in the whole technological process in the mode of gravity flow, is equipped with perfect semi-automatic pipe blow-through and mud reclamation set, and used power is less, and technology controlling and process is simple.4, processing method and equipment used are simple, and processing power is higher, and anti-portative power is strong, stable and reliable operation, and maintenance management is convenient.5, floor space is less, and terrain environment adaptability is strong, both can focus on a large scale, also can be made into decentralized, in the work, handle on a small scale, one-time investment is lower, the purifying treatment power consumption is little, and efficient is higher, and running cost is significantly less than the purification process of similar effluent characteristics and ability.
Description of drawings
Fig. 1 is a process flow diagram of the present invention
Embodiment
The present invention is described in further detail below in conjunction with description of drawings and embodiment:
1. grille well
Sewage is concentrated by the community life sewage network of drains, contains the suspended substance and the floating matter of a large amount of larger particles in the sewage, is cut and is in time removed by the grid hurdle, is placed with sump pump in the grille well, will be through the sewage extracting of grid filtration to oil trap.The grate opening lattice are of a size of 10 * 10 millimeters to 30 * 30 millimeters.
Being provided with of grille well one is to have removed all kinds of solid matters of comparatively large vol in the sewage, reduces the burden of subsequent processing; The 2nd, can guarantee that sump pump can normally move, and can not stop up pumping hole; The 3rd, by sump pump sewage is promoted in the highest oil trap of level height (physical features) in this treatment process, make sewage in gravity flow environment from high to low, finish the process of deep purifying.
3. oil trap
It also is the equal of a settling tank, utilize oil to be lighter than the characteristic of water, by leaving standstill of water parked, make oil fly at the water surface upper strata of sewage, near the oil trap liquid level, be provided with the oil-collecting mouth of pipe, the special sump oil of collecting in the sanitary sewage flow in the oil reservoir sump oil, and can carry out pre-treatment to vegetable and animals oils.Sewage is through removing greasy dirt, and its Chemical Composition improves, and the polymer pollutent reduces, the COD in the sewage, BOD
5Obviously descend etc. index.The setting of oil trap makes follow-up deep purifying treatment process more simple, and processing cost descends, and has guaranteed the normal operation of biochemical processing process.The sewage gravity flow of oil trap liquid level below enters equalizing tank.
3. equalizing tank
Adopt the existing conventional equalizing tank, sewage is carried out the adjusting of water quality and quantity, so that the subsequent disposal serialization.The sewage gravity flow of equalizing tank enters anaerobic pond.
4. anaerobic pond
Adopt the existing conventional anaerobic pond, anaerobic pond is made up of anaerobic digester and anaerobic biofilter, and sewage is degraded to small-molecule substance with partial organic substances under the anaerobion effect, and the sewage after the processing is discharged from top, pond, and gravity flow enters oxidation pond.
5. oxidation pond
Oxidation pond is divided into one section bio-oxidation pond, two sections bio-oxidation ponds.The aerobic microbiological film of under aerobic condition, growing on the filler with in the sanitary sewage in (ghost word, changed into) machine thing absorption, absorb then, decomposition, oxidation, organism is degraded, the biofilm detachment of weather aging is along with the water outlet gravity flow enters the micropore ceramics filter tank.
Through one, the purifying treatment of two-stage bio-contact oxidation, organism obtains decomposing comparatively completely under the effect of aerobic bacteria, finally forms CO
2, H
2O, NH
3, SO
4 2Etc. various inorganicss, NH wherein
4-N (changes NH into
3-N) issue the caliche reaction to change into nitric nitrogen in effects such as nitrifiers.
6. micropore ceramics filter tank
Form by capillary ceramic plate and tubing, establish air water combination back-purge system in the pond, under the effect of pressed gas, air water combined dredging micropore.Carry out solid-liquid separation in this filter tank, mud is separated in the pond, and to anaerobic pond, excess sludge enters the mud concentration tank to a part by the sludge pump pump.This section effluent quality is better than the primary standard in country's " integrated wastewater discharge standard ".The micropore ceramics film is under water, with regular recoil, can keep good purification separation function for a long time.There are two outlets in the filter tank, and near the liquid level of an outlet in the filter tank, it is communicated with the biogenic sediment pond.Another outlet generally is located at the bottom in filter tank, and it is connected with the mud concentration tank through sludge pump and pipeline, and mud is isolated in the main micropore ceramics filter tank of regularly discharging.
The mud concentration tank is used for thickened sludge to reduce sludge volume.There is pipeline to be communicated with anaerobic pond on the mud concentration tank, so just between anaerobic pond, oxidation pond, micropore ceramics filter tank and mud concentration tank, constituted a circulation loop.
Being equipped with perfect semi-automatic pipe blow-through and mud reclamation set on the mud concentration tank can clean each pipeline in the whole process flow, and with spissated mud injection pressure filter, to the mud processed compressed of dewatering,, be convenient to outward transport by pressure filter to reduce sludge volume and weight.
7. biogenic sediment pond
Be divided into settling bath 1 and settling bath 2.In settling bath 2, be filled with tailormadepiston ball filler, its surface-area is very big, and breeding has a large amount of microorganisms on contact material, gives full play to the Decomposition of aerobic microbiological, organism with in the further reduction waste water continues to be oxidized to nitric nitrogen with unconverted ammonia-state nitrogen simultaneously.
The existing conventional design all can be adopted in equalizing tank, anaerobic pond, oxidation pond, micropore ceramics filter tank and biogenic sediment pond, and this link can be handled the organic concentration height, the sewage that biodegradability is relatively poor.The big portion of its pollutants in sewage of processing through preceding series of processes is removed, and effluent quality obviously improves, and then carries out deep purifying and handle.
8. charcoal is the aeration tank
Be divided into aeration tank 1 and aeration tank 2, all can adopt existing gac aerating apparatus structure.The further remaining ammonia-state nitrogen of oxidation in aeration tank 1, and the oxygen content in the raising water.Aeration tank 2 belongs to the upward flow chamber that charcoal is the aeration tank, and promptly the water-in in this pond is located at the bottom in pond, and water outlet is located at the top in pond, makes in current the flowing from bottom to top to carry out aeration.In aeration tank 2, be filled with biological activated carbon.Under little aeration condition, organism is broken down into H
2, CO
2, N
2, the various polymeric anion tensio-active agents of washing composition class in biological activated carbon also by digest and decompose.Biological activated carbon has special structure and organotrophy composition, can make the harmonious orderly a large amount of breedings of microorganism and protozoon.Simultaneously also help protozoic vegetative activity, form good biological chain group, the organic substance in long-term digestion and the water of decomposition makes the purification of water quality clarification.For domestic sewage treating, the time limit of service of biological activated carbon is more than 10 years in the technology of the present invention.2 the top in the aeration tank, promptly the upper strata of biological activated carbon is filled with Wingdale.When sewage passed through the Wingdale of filling on top, upward flow chamber, the phosphorus in the sewage acted on the generation calcium phosphate precipitation with it, removed the phosphorus in the sewage.
Be significantly improved through water quality after the gac aeration treatment process, can meet or exceed the quality standard of national surface water III class water quality.
In charcoal is the aeration tank, also can fill common gac etc., equally also can carry out the deep purifying of water and handle, obtain national surface water III class water quality, but since common gac easily because of adsorbing saturated loss of activity, so should often change.
9. charcoal decoloration and deodorization pond
In order further to improve the impression index of handling the back water outlet, also can carry out decolouring and deodorizing and handle water, existing charcoal filtering pool structure is adopted in charcoal decoloration and deodorization pond, is divided into leading annotating groove and charcoal decoloration and deodorization groove.Diversion trench guiding water flows into charcoal decoloration and deodorization groove from the bottom up, prevents to stop up.Charcoal decoloration and deodorization groove is by the charcoal filling.From charcoal is that effusive micro-SS is removed in last charcoal decoloration and deodorization groove the aeration tank, after the decoloration and deodorization of charcoal is handled, obtains highly limpid clean water matter simultaneously.
The present invention in design can be according to different terrain environment arrangement technology flow processs, from oil trap until charcoal decoloration and deodorization pond, making sewage is to finish the deep purifying treating processes with the form of gravity flow basically, obtain limpid clean water matter, used like this power is less, technology controlling and process is convenient, and operation and maintenance cost is lower.
Main economic and technical indices (the 2000m of this technological design
3/ d scale is calculated)
| Project | Index | Remarks |
| Processing power (m 3/d) | 2000 | |
| Floor space (m 2) | 1200 | 0.6m 2/t |
| Total installation of generating capacity (Km) | 109.8 | |
| Normal power (kw) | 55.5 | |
| Unit power consumption (unit/m 3) | 0.33 | |
| Unit dose is taken (unit/m 3) | 0.05 | |
| Labour cost (unit/m 3) | 0.01 | 1 people (600 yuan/month) |
| Processing costs (unit/m 3) | 0.39 | Handle sewage running cost per ton |
Technology of the present invention is applied to sewage treatment project in the campus, the new school district of Hubei College Of Traditional Chinese Medicine.COD and BOD are respectively 200-300mg/L and 120-200mg/L in the preceding sewage of processing, and the effluent characteristics after the processing reaches III class water quality standard among " water environment quality standard " GB3838-2002 of country.
Claims (4)
1. deep cleaning treatment process for city effluent is characterized in that may further comprise the steps:
1) treatment sewage is introduced separated greasy dirt in the oil trap;
2) will separate that smeary sewage introduces successively that equalizing tank, anaerobic pond and oxidation pond decompose, oxidation and degraded;
3) will introduce micropore ceramics filter tank separate solid and liquid through the sewage of anaerobism and oxide treatment;
4) the isolated sewage of step 3) is introduced further oxygenolysis in biogenic sediment pond and precipitated impurities, with the isolated mud of step 3) with pump suction mud concentration tank or the anaerobic pond that is communicated with the mud concentration tank;
5) it is the aeration tank that the sewage of step 4) being handled is introduced charcoal, behind organic impurity in the absorption water of decomposition, discharges to outside atmosphere again;
The mode of flowing automatically is all taked in the introducing of sewage and discharge in the above step.
2. a kind of deep cleaning treatment process for city effluent according to claim 1 is characterized in that: adopt biological activated carbon to carry out aeration in step 5), it is upward flow chamber in the aeration tank that biological activated carbon places charcoal.
3. a kind of deep cleaning treatment process for city effluent according to claim 1 is characterized in that: be filled with Wingdale in charcoal is the top liquid level of upward flow chamber, aeration tank.
4. a kind of deep cleaning treatment process for city effluent according to claim 1 is characterized in that: charcoal is to add charcoal decoloration and deodorization pond behind the aeration tank in addition, after step 5) treated water introducing charcoal decoloration and deodorization pond is filtered, discharges to outside atmosphere again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100191071A CN1296297C (en) | 2005-07-18 | 2005-07-18 | Deep cleaning treatment process for city effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100191071A CN1296297C (en) | 2005-07-18 | 2005-07-18 | Deep cleaning treatment process for city effluent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1736907A true CN1736907A (en) | 2006-02-22 |
| CN1296297C CN1296297C (en) | 2007-01-24 |
Family
ID=36079897
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100191071A Active CN1296297C (en) | 2005-07-18 | 2005-07-18 | Deep cleaning treatment process for city effluent |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395945A (en) * | 2013-08-15 | 2013-11-20 | 武汉新天达美环境科技有限公司 | Carbon-system carrier biological filtering pond system |
| CN103771666A (en) * | 2014-02-17 | 2014-05-07 | 新乡学院 | Energy-saving slaughter wastewater treatment method |
| WO2020220410A1 (en) * | 2019-04-30 | 2020-11-05 | 贵州民族大学 | Integrated treatment apparatus for domestic waste |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2149389Y (en) * | 1992-10-26 | 1993-12-15 | 徐冬利 | Composition equipment for wastewater treatment |
| CN1382648A (en) * | 2002-06-17 | 2002-12-04 | 深圳市龙岗区平湖污水处理厂 | Process for treating city sewage by hydrolysis-anaerobic-anoxic-aerobic method |
| CN100467405C (en) * | 2004-07-02 | 2009-03-11 | 哈尔滨工业大学 | Water treatment method for recycling bath sewage using biological active carbon |
-
2005
- 2005-07-18 CN CNB2005100191071A patent/CN1296297C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395945A (en) * | 2013-08-15 | 2013-11-20 | 武汉新天达美环境科技有限公司 | Carbon-system carrier biological filtering pond system |
| CN103771666A (en) * | 2014-02-17 | 2014-05-07 | 新乡学院 | Energy-saving slaughter wastewater treatment method |
| CN103771666B (en) * | 2014-02-17 | 2014-11-19 | 新乡学院 | Energy-saving slaughter wastewater treatment method |
| WO2020220410A1 (en) * | 2019-04-30 | 2020-11-05 | 贵州民族大学 | Integrated treatment apparatus for domestic waste |
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| Publication number | Publication date |
|---|---|
| CN1296297C (en) | 2007-01-24 |
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