CN202099163U - Combined layering biological filter for sewage treatment - Google Patents

Combined layering biological filter for sewage treatment Download PDF

Info

Publication number
CN202099163U
CN202099163U CN2011201716400U CN201120171640U CN202099163U CN 202099163 U CN202099163 U CN 202099163U CN 2011201716400 U CN2011201716400 U CN 2011201716400U CN 201120171640 U CN201120171640 U CN 201120171640U CN 202099163 U CN202099163 U CN 202099163U
Authority
CN
China
Prior art keywords
water
biological filter
pond
wwt
combined
Prior art date
Application number
CN2011201716400U
Other languages
Chinese (zh)
Inventor
邱江平
李旭东
纪婧
邱卫国
欧文幍
戴一琦
Original Assignee
上海交通大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海交通大学 filed Critical 上海交通大学
Priority to CN2011201716400U priority Critical patent/CN202099163U/en
Application granted granted Critical
Publication of CN202099163U publication Critical patent/CN202099163U/en

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

A combined layering biological filter for sewage treatment belongs to the technical field of sewage treatment and comprises a water storage tank, a combined layering biological filter body, an intermediate tank and a horizontal subsurface flow wetland, wherein the water storage tank, the biological filter body, the intermediate tank and the horizontal subsurface flow wetland are sequentially connected in series. By the aid of the combined layering biological filter for sewage treatment, organics, suspended matters, ammonia and nitrogen in sewage can be subjected to pretreatment, nitrogen, phosphorus and residual organics in the sewage can be further treated by the aid of the artificial wetland, and water purification can be realized under synthetically physical, chemical and biological actions. Quality of treated water can only accord with the secondary standard when the technology of a conventional biological filter is used separately, and various detected indexes of quality of water, of an application case, treated by the aid of the combined technology of the combined layering biological filter are superior to the primary standard B of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002), and the floor area per ton of water is about 3.5m2.

Description

The combined layering biological filter that is used for WWT
Technical field
The utility model relates to a kind of device of technical field of sewage, specifically is a kind of combined layering biological filter that is used for WWT that domestic sewage of villages and small towns is handled that is used for.
Background technology
Domestic sewage of villages and small towns is one of important source of vast Rural areas pollution of area source; China 95% above village and 90% above little market town all do not have perfect sewage collecting and treatment facility; The sewage and the part trade effluent that produce; Almost be directly to enter water body (river course, pond, underground water etc.) without any processing, cause the severe contamination of villages and small towns water body, the lake of black smelly river course, pond and eutrophication has become universal phenomenon.
Domestic sewage of villages and small towns is handled has following several characteristics: 1) wide, disperse, water quality, water yield fluctuation are big, network of drains is very unsound; 2) the villages and small towns economic force is weak, and sewage disposal technology or technology need reduced investment, energy consumption is low, working cost is few; 3) villages and small towns lack the WWT professional, and treatment facility meets the tendency the administration-management reason simply, and is easy to maintenance; 4) lack advanced and applicable targetedly sewage disposal technology, should not adopt comparatively sophisticated municipal effluent technology aspect the WWT of villages and small towns, and some so-called environmental technologies often can not satisfy processing requirements, or lack the condition of implementing (like land resources).Therefore need to adopt that some technologies are succinct, treatment effect good, take up an area of economize, energy consumption is low, operational management is easy, secondary pollution is few advanced and applicable technology, and use the dispersion treatment pattern.
At present, handle main three major types technology and the technology of adopting both at home and abroad to villages and small towns sewage distributing.One type is the successful experience of using for reference municipal sewage plant's secondary biochemical treatment, and municipal sewage plant's secondary biochemical treatment technology miniaturized that some are traditional is applied to the villages and small towns decentralized type sewage and handles.Like SBR, oxidation ditch, A/O, in addition A2/O, MBR or the like.Only from the angle of technology, these technology and technology is comparative maturity all, can satisfy the requirement of WWT.But these technology and technology is more complicated all usually, and the equipment of needs is also many.Therefore, invest that relatively large, system maintenance management is comparatively complicated, energy consumption and operational and administrative expenses be high, and possibly produce some secondary pollution problems.The socioeconomic practical situation of such treatment system and China villages and small towns are far from suitable.Consequently change and spent great amount of investment, the sewage work that builds up (station) is because high working cost, the normal maintenance management of shortage etc. are former thereby be in abnormal running or state out of service.
Second type is to adopt some relative simple ecological sewage disposal technologies, comprises artificial swamp, oxidation pond, land treatment system etc.The advantage of this type technology is that technology is simple, investment is little, less energy-consumption, easy maintenance, environmental friendliness etc.; Shortcoming is that processing efficiency is lower; Usually to just can obtain stable treated effect and the long-term normal operation of keeping system under certain conditions; As lower hydraulic load and organic loading and long HRT, this just requires bigger utilizable land area.
The 3rd type is the anaerobic treatment technology, is that main system for anaerobic treatment is a kind of wastewater processing technology cheaply with the anaerobic reactor, can recycle the energy again simultaneously.Handle for domestic sewage in rural areas by using; Can be people, animal ight soil; The organic waste water of agricultural crop straw, weeds, leaf and enterprises engaged in processing agricultural products etc. joins in the anaerobic biogas generating pit and carries out anaerobic treatment simultaneously with sewage, and the biogas of generation can be used as bathroom and home energy source.Anerobic sowage produces biogas technology and has obtained effective popularization and use in some places of China.But independent anaerobism sewage disposal technology can't make treat effluent satisfy emission request, must carry out subsequent disposal.
In addition, development integrates the middle-size and small-size WWT integrated apparatus of pre-treatment, second-stage treatment and advanced treatment, is a kind of trend of domestic and international sewage dispersion treatment development, in domestic sewage in rural areas by using is handled, has broad application prospects.The integrated apparatus of Japanology mainly adopts anaerobic-aerobic-second pond combination process, has the function of degradation of organic substances and denitrogenation concurrently, its water outlet BOD5<20mg/L, TN<20mg/L.The membrane technology of exploitation can carry out advanced treatment to BOD5 and TN in recent years.It is main that the many countries in Europe have developed with SBR, MBBR, blodisc and trickling filter technology, handles integrating device in conjunction with the small-scale sewage of chemical dephosphorization.But this type integrated apparatus equally also exists, and energy consumption is higher, operational management is than problems such as complicacies, and its scope of application awaits further to expand simultaneously.
Be used for the decentralized wastewater treatment process in the prior art and all can reach urban wastewater treatment firm pollutant emission standard (GB18918-2002) or national agricultural irrigation water quality standard (GB5084-2005).But these technology or technology exist following limitation and deficiency:
1. complex process, processing unit is too much, has increased construction, construction and management difficulty, and the repeatedly backflow between filter tank and anaerobic pond causes capital construction and operational and administrative expenses to increase.
2. mostly the wetland type is the surface current wetland, though be easy to build, sanitary condition is poor, and hydraulic detention time is long, causes the project occupation of land area big, on use is promoted, is prone to restricted.
3. added a large amount of earthworms in the Worm biological filter tank,, needed regularly earthworm to be replenished interpolation, be difficult to maintenance because earthworm is subject to the influence of environmental factors, sewage quality etc.
The utility model content
The above-mentioned deficiency that the utility model exists to prior art; A kind of combined layering biological filter that is used for WWT is provided; Utilize the layering biological filter that the organism in the sewage, suspended substance and ammonia nitrogen etc. are carried out pre-treatment, utilize artificial swamp that the nitrogen in the sewage, phosphorus and residual organic substances are further handled, reached the purpose that purifies water through physics, chemistry, biological synthesis effect.Treat effluent can reach secondary standard when traditional biological filtering tank process used separately, with conventional artificial wetland individual curing sewage, every processing 1m 3Sewage needs 10m approximately 2Above soil.And process integration application example effluent quality each item index that this device provides all is superior to " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard through detecting, the about 3.5m of ton water floor space 2
The utility model realizes that through following technical scheme the utility model comprises: the water collecting basin that is connected in series successively, biological filter, middle pond and horizontal drowned flow formula wetland.
The lower end in described middle pond is provided with refluxing opening and links to each other with water collecting basin.
Described water collecting basin is two form skeleton constructions, is 2: 1 along water (flow) direction volume integral mixing ratio.
Be provided with grid, automatic level controller and submersible sewage pump in the described water collecting basin, wherein: grid is on the barricade between water collecting basin two lattice, and automatic level controller and submersible sewage pump place in the water lattice behind the grid.
The grid of described grid is less than 10mm, and area is more than or equal to 1.0m 2
Described biological filter from top to bottom comprises successively: water-distributing device, by filter bed and water exhaust system that the first pond body and filtrate are formed, and wherein: filter bed is the layered framework structure, the high 40-50cm of individual layer, the interlayer spacing is more than or equal to 50mm.
Described filtrate is volcanics biologic packing material, haydite and dephosphorization filler.
The pond comprises in the middle of described: the second pond body, water distribution system and return line; Wherein: the available depth of the second pond body is more than or equal to 2.0m, and the water distribution system that has a V-notch weir is positioned at body water side, second pond and water is divided into some parts and flow into wetland respectively and be back to water collecting basin through return line.
Described horizontal drowned flow formula wetland from bottom to top comprises successively: impervious barrier, packing layer, pedosphere, water-fast layer of plants and water outlet cloth water channel.
Under artificial adjustment, physics, chemistry and biological comprehensive action are accomplished the denitrification of sewage nitrogen, the absorption of phosphorus and the removal of residual organic substances etc. in the ecosystem that is made up of matrix-mikrobe-plant, and artificial wetland effluent is discharged system through rising pipe.For improving the treatment effect of system, the part water outlet of middle pond can be back to water collecting basin.
This device carries out work in the following manner: sewage gets into water collecting basin behind grid, is promoted to the combined layering biological filter automatically by pump, fully contacts with wherein microbial film, and pollutent is by mikrobe absorption and degraded; The filter tank water outlet is partly refluxed to water collecting basin through post precipitation, and all the other get into artificial wet land system, under filler-soil-plant acting in conjunction, further removes organism, nitrogen and phosphorus, enters near water body after the water outlet standard up to standard.
This device compared with prior art has the following advantages and beneficial effect:
(1) adopt layering biological filter and artificial swamp to carry out process combination, each unit, combination back can have complementary functions at the performance self-acting simultaneously, thereby improves whole structure.
(2) layering biological filter ventilation condition is good; Oxygenation capacity is strong; As the wet pre-treatment of manual work, improved the impact resistance of whole technology to sewage, can effectively cut down organism, suspended substance in the sewage; And provide convenience for the nitrated of ammonia nitrogen, and reduced significantly follow-up artificial swamp pollution load and floor space (for traditional artificial swamp 1/3~1/2).
(3) aerated concrete of current wetland employing particle diameter 30~50mm is as filler; This filler with 70% flyash, 15% unslaked lime, 10% cement, 3% phosphogypsum and 2% other be raw material; The inflation compacting forms under HTHP; On the one hand phosphorus is had stronger absorption property, can effectively cut down total phosphorous in the sewage; The specific surface area that this filler is big on the other hand is easy to the microorganism colonization growth, can effectively remove organism and the nitrogen phosphorus in the sewage simultaneously; The 3rd, adopt large particle size filler to be beneficial to the discharge capacity of raising system, overcome the susceptible to plugging shortcoming of traditional wetland, can steady in a long-term move.System compared with prior art is significantly increased to the clearance of nitrogen, phosphorus, and nitrogen removal rate is 50~60%, and the clearance of total phosphorus is 70~80%, and less floor space and initial cost are arranged, and management is simple.
Description of drawings
Fig. 1 is this device vertical view;
Fig. 2 uses synoptic diagram for embodiment;
Fig. 3 is the filter tank sectional view.
Embodiment
Embodiment in the face of this device elaborates down, and present embodiment provided detailed embodiment and concrete operating process, but the protection domain of this device is not limited to following embodiment being to implement under the prerequisite with this device technique scheme.
Embodiment 1, Cao Jiabang village, town, calm lakelet port, Shanghai Songjiang district sewage treatment project
Engineering design treatment scale 60m 3/ d, floor space 250m 2, about 900 people of service population, the about 235 family villagers' of collection and treatment sewage.
Present embodiment comprises: the water collecting basin 1 that is connected in series successively, biological filter 2, middle pond 3 and horizontal drowned flow formula wetland 4, this instance is not established backflow.
The lower end in described middle pond 3 is provided with refluxing opening 5 and links to each other with water collecting basin 1.
Described water collecting basin 1 is two form skeleton constructions, is 2: 1 along water (flow) direction volume integral mixing ratio.
Be provided with grid 6, automatic level controller 7 and submersible sewage pump 8 in the described water collecting basin 1, wherein: grid 6 is on the barricade between 1 liang of lattice of water collecting basin, and automatic level controller 7 and submersible sewage pump 8 place in the water lattice behind the grid 6.
The grid of described grid 6 is less than 10mm, and area is more than or equal to 1.0m 2
Described biological filter 2 from top to bottom comprises successively: water-distributing device 9, by filter bed 12 and water exhaust system 13 that the first pond body 10 and filtrate 11 are formed, and wherein: filter bed 12 is the layered framework structure, the high 40-50cm of individual layer, the interlayer spacing is more than or equal to 50mm.
Described filtrate 11 is volcanics biologic packing material, haydite and dephosphorization filler.
Pond 3 comprises in the middle of described: water distribution system 14, return line 15 and the second pond body 16; Wherein: the available depth of the second pond body 16 is more than or equal to 2.0m, and the water distribution system 14 that has a V-notch weir is positioned at the second pond body, 16 water sides and water is divided into some parts and flow into wetland respectively and be back to water collecting basin 1 through return line 15.
Described horizontal drowned flow formula wetland 4 from bottom to top comprises successively: impervious barrier 17, packing layer 18, pedosphere 19, water-fast layer of plants 20, water inlet cloth water channel 21 and go out water channel 22.
Water collecting basin 1 useful volume is 15m 3, available depth 1.0m.The filter tank is divided into 6 layers, and hydraulic load is 4m 3/ m 3.d, volcanics, haydite and dephosphorization filtrate 11 composite filtering materials 11 are adopted in the filter tank.Middle pond 3 useful volumes are 7.5m 3, hydraulic detention time is 3h.Artificial swamp useful area 180m 2, hydraulic load is 0.33m 3/ m 2.d, packing layer 18 thick 0.6m adopt aerated concrete, pedosphere 19 thick 30cm, on plant rye grass.The engineering row that builds up in by the end of October, 2007 and put into operation in, steady running 3 years half so far.The engineering operation fully automated, management is simple, does not need staff on duty, only need make regular check on.Working cost is thought the master, and ton water running expense is no more than 0.1 yuan.
Cao family's creek sanitary sewage disposal engineering ammonia nitrogen, total nitrogen and total phosphorus average removal rate are 75%, 65%, 70%; Go out water concentration respectively at 60mg/L, 8mg/L and below the 0.8mg/L, water outlet has reached " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard.
Embodiment 2: Pudong New Area, Shanghai boat town's decorated archway village WWT demonstration project
Engineering design treatment scale 60m 3/ d, floor space 210m 2, power consumption 0.1kWh/m 3, 1 of service decorated archway 350 villagers in village and modern ecological farm.
Present embodiment comprises: water collecting basin 1, combined layering biological filter 2, middle pond 3 and horizontal drowned flow formula wetland 4; Wherein: water collecting basin 1, biological filter 2, middle pond 3 and horizontal drowned flow formula wetland 4 are connected in series successively, and the end in middle pond 3 is provided with refluxing opening and links to each other with water collecting basin 1.The water collecting basin useful volume is 20m 3, available depth 1.0m.The filter tank is divided into 6 layers, and hydraulic load is 4m 3/ m 3.d, adopt volcanics, haydite and dephosphorization filtrate composite filtering material.Middle pond useful volume is 7.5m 3, hydraulic detention time is 3h.Artificial swamp useful area 150m 2, hydraulic load is 0.4m 3/ m 2.d, filler bed thickness 0.8m adopts aerated concrete, soil bed thickness 30cm, last turfing and shrub.Formally put into operation in by the end of May, 2009.After combination process put into operation, after the system handles, can cut down COD 21.18t every year, ammonia nitrogen 1.24t, total phosphorus 0.22t.Water outlet COD, ammonia nitrogen, total phosphorus all can satisfy " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard.
Embodiment 3: Chongming, Shanghai City county Gang Yan town WWT demonstration project
Market town district, Gang Yan town, Chongming county sewage collection and treatment engineering design sewage collecting and treatment scale are 500m 3/ d, service population 4380 people, total floor space 1300m 2, 130m long from south to north, the wide about 10~11.5m of thing.
Present embodiment comprises: water collecting basin 1, combined layering biological filter 2, middle pond 3 and horizontal drowned flow formula wetland 4, wherein: water collecting basin 1, biological filter 2, middle pond 3 and horizontal drowned flow formula wetland 4 are connected in series successively, and this instance is not established backflow.The water collecting basin useful volume is 120m 3, available depth 1.0m.Filter tank floor space 100m 2, filter bed is divided into 7 layers, and hydraulic load is 4m 3/ m 3.d, adopt volcanics, haydite and dephosphorization filtrate composite filtering material.Middle pond useful volume is 62.5m 3, hydraulic detention time is 3h.Artificial swamp useful area 1100m 2, hydraulic load is 0.45m 3/ m 2.d, filler bed thickness 0.8m adopts aerated concrete, soil bed thickness 30cm, on plant rye grass.Engineering formally put into operation in October, 2009.Ton water running expense is no more than 0.15 yuan.
After combination process was handled, COD, ammonia nitrogen, total phosphorus went out water concentration respectively less than 56mg/L, 12mg/L, and 0.9mg/L has all reached " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard.

Claims (9)

1. a combined layering biological filter that is used for WWT is characterized in that, comprises the water collecting basin, biological filter, middle pond and the horizontal drowned flow formula wetland that are connected in series successively.
2. the combined layering biological filter that is used for WWT according to claim 1 is characterized in that, the lower end in described middle pond is provided with refluxing opening and links to each other with water collecting basin.
3. the combined layering biological filter that is used for WWT according to claim 1 is characterized in that, described water collecting basin is two form skeleton constructions, is 2: 1 along water (flow) direction volume integral mixing ratio.
4. according to claim 1 or the 2 or 3 described combined layering biological filters that are used for WWT; It is characterized in that; Be provided with grid, automatic level controller and submersible sewage pump in the described water collecting basin; Wherein: grid is on the barricade between water collecting basin two lattice, and automatic level controller and submersible sewage pump place in the water lattice behind the grid.
5. the combined layering biological filter that is used for WWT according to claim 4 is characterized in that the grid of described grid is less than 10mm, and area is more than or equal to 1.0m 2
6. the combined layering biological filter that is used for WWT according to claim 4; It is characterized in that; Described biological filter from top to bottom comprises successively: water-distributing device, filter bed and the water exhaust system be made up of the first pond body and filtrate; Wherein: filter bed is the layered framework structure, the high 40-50cm of individual layer, and the interlayer spacing is more than or equal to 50mm.
7. the combined layering biological filter that is used for WWT according to claim 6 is characterized in that, described filtrate is volcanics biologic packing material, haydite and dephosphorization filler.
8. the combined layering biological filter that is used for WWT according to claim 1; It is characterized in that; The pond comprises in the middle of described: the second pond body, water distribution system and return line; Wherein: the available depth of the second pond body is more than or equal to 2.0m, and the water distribution system that has a V-notch weir is positioned at body water side, second pond and water is divided into some parts and flow into wetland respectively and be back to water collecting basin through return line.
9. the combined layering biological filter that is used for WWT according to claim 1 and 2 is characterized in that, described horizontal drowned flow formula wetland from bottom to top comprises successively: impervious barrier, packing layer, pedosphere, water-fast layer of plants and water outlet cloth water channel.
CN2011201716400U 2011-05-26 2011-05-26 Combined layering biological filter for sewage treatment CN202099163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201716400U CN202099163U (en) 2011-05-26 2011-05-26 Combined layering biological filter for sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201716400U CN202099163U (en) 2011-05-26 2011-05-26 Combined layering biological filter for sewage treatment

Publications (1)

Publication Number Publication Date
CN202099163U true CN202099163U (en) 2012-01-04

Family

ID=45385188

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201716400U CN202099163U (en) 2011-05-26 2011-05-26 Combined layering biological filter for sewage treatment

Country Status (1)

Country Link
CN (1) CN202099163U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424472A (en) * 2011-10-28 2012-04-25 自贡大业高压容器有限责任公司 Anaerobic biofilter
CN103043867A (en) * 2013-01-09 2013-04-17 王洪臣 Low-energy self-circulation treatment method for rural sewage
CN103058358A (en) * 2013-01-29 2013-04-24 上海交通大学 Biological filter capable of improving sewage interception capacity of down-flow biological filter
CN104150706A (en) * 2014-07-25 2014-11-19 席北斗 Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor
CN104193087A (en) * 2014-07-25 2014-12-10 浩蓝环保股份有限公司 Catalytic oxidation slow percolation nitrogen and phosphorus removal device and method
CN105060460A (en) * 2015-07-17 2015-11-18 上海交通大学 Layered biological filter for removing nitrogen and phosphorus
CN105314797A (en) * 2015-11-23 2016-02-10 上海应用技术学院 Bacterial earthworm filter for synchronous treatment of sewage and sludge and application thereof
CN105399275A (en) * 2015-11-27 2016-03-16 中铁五局集团建筑工程有限责任公司 Wastewater treatment method
CN105985087A (en) * 2015-09-02 2016-10-05 重庆三峡环保(集团)有限公司 Phosphorus removal filler and method for preparing same
CN106336087A (en) * 2016-11-03 2017-01-18 湖北省农业科学院植保土肥研究所 Integrated household biological filter tower for treating rural domestic wastewater
CN106892535A (en) * 2017-02-27 2017-06-27 上海交通大学 A kind of decentralized type sewage processing equipment and method for being applicable rural area

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424472A (en) * 2011-10-28 2012-04-25 自贡大业高压容器有限责任公司 Anaerobic biofilter
CN103043867A (en) * 2013-01-09 2013-04-17 王洪臣 Low-energy self-circulation treatment method for rural sewage
CN103058358A (en) * 2013-01-29 2013-04-24 上海交通大学 Biological filter capable of improving sewage interception capacity of down-flow biological filter
CN103058358B (en) * 2013-01-29 2014-06-25 上海交通大学 Biological filter capable of improving sewage interception capacity of down-flow biological filter
CN104150706A (en) * 2014-07-25 2014-11-19 席北斗 Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor
CN104193087A (en) * 2014-07-25 2014-12-10 浩蓝环保股份有限公司 Catalytic oxidation slow percolation nitrogen and phosphorus removal device and method
CN104193087B (en) * 2014-07-25 2016-04-20 浩蓝环保股份有限公司 A kind of slow diafiltration denitrification dephosphorization apparatus of catalytic oxidation and method
CN104150706B (en) * 2014-07-25 2016-01-20 席北斗 Slowly system unpowered biological rotating disk water purifying device and method is oozed
CN105060460A (en) * 2015-07-17 2015-11-18 上海交通大学 Layered biological filter for removing nitrogen and phosphorus
CN105985087B (en) * 2015-09-02 2018-06-29 重庆三峡环保(集团)有限公司 A kind of dephosphorization filler and preparation method thereof
CN105985087A (en) * 2015-09-02 2016-10-05 重庆三峡环保(集团)有限公司 Phosphorus removal filler and method for preparing same
CN105314797A (en) * 2015-11-23 2016-02-10 上海应用技术学院 Bacterial earthworm filter for synchronous treatment of sewage and sludge and application thereof
CN105399275A (en) * 2015-11-27 2016-03-16 中铁五局集团建筑工程有限责任公司 Wastewater treatment method
CN106336087A (en) * 2016-11-03 2017-01-18 湖北省农业科学院植保土肥研究所 Integrated household biological filter tower for treating rural domestic wastewater
CN106892535A (en) * 2017-02-27 2017-06-27 上海交通大学 A kind of decentralized type sewage processing equipment and method for being applicable rural area

Similar Documents

Publication Publication Date Title
CN100378272C (en) Stereo in-situ ecological urban water system repairing process
CN201406359Y (en) Treatment device for black odor river
CN102701521B (en) Urbsewage treatment method
CN103523998B (en) A kind of purifying method controlling extraneous contamination source and the black smelly river course of restoration of the ecosystem
CN101948214B (en) Ecological greenbelt treatment process and system for treating rural domestic sewage
CN101397178B (en) Livestock and poultry raising sewage disposal process and disposal system thereof
CN101921042B (en) Alternate combined wetland system and method for efficiently removing nitrogen and phosphorus in urban wastewater
CN101671092B (en) Sewage treatment system and method for combined tidal flow artificial wetland
CN102351378B (en) Method and system for processing rural sewage in artificial wetlands
CN204454829U (en) A kind of integrated underground sewage treatment equipment efficiently
CN104496106B (en) A kind of campus rainwater ecological purification integrated processing method and ecological purification integrated system
CN102674631A (en) Method and system for advanced treatment of centralized rural domestic sewage
CN205189098U (en) A rainwater garden for building district
CN201999829U (en) Distributed sewage treatment system for rural life
CN103159383A (en) Rural domestic sewage biological treatment system
CN101928095B (en) Distributed domestic sewage treatment method
CN204125300U (en) A kind of purification tank for the treatment of dispersion type domestic wastewater
CN202576154U (en) Complex ecological system for treating domestic wastewater of rural community
CN101863584A (en) Biological contact oxidation and artificial wetland combined treatment system for grey water of residential area
CN103343569B (en) Ecological ditch for rural domestic sewage collection and pretreatment
CN101475284B (en) Domestic sewage treatment process and apparatus
CN204356190U (en) A kind of campus rainwater ecological purifying integral system
CN102874934A (en) Technology for direct in-situ treatment and ecological restoration of polluted water body
CN101284705A (en) Tower type earthworm and ecological filter for treating sewage
CN101121570A (en) Method and device for treating domestic sewage by earthworm strengthened artificial wet land

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180831

Address after: 202150 7953, room 2, No. 1800 Pan Yuan Road, Changxin Town, Chongming District, Shanghai.

Patentee after: Shanghai Aung Environmental Protection Development Co., Ltd.

Address before: 200240 No. 800, Dongchuan Road, Shanghai, Minhang District

Patentee before: Shanghai Jiao Tong University