CN1272261C - Integrated sewage treating apparatus combining biological fitler tower and underground percolation - Google Patents

Integrated sewage treating apparatus combining biological fitler tower and underground percolation Download PDF

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Publication number
CN1272261C
CN1272261C CNB2004100665798A CN200410066579A CN1272261C CN 1272261 C CN1272261 C CN 1272261C CN B2004100665798 A CNB2004100665798 A CN B2004100665798A CN 200410066579 A CN200410066579 A CN 200410066579A CN 1272261 C CN1272261 C CN 1272261C
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China
Prior art keywords
tower
filter tower
soil
underground
subsurface
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Expired - Fee Related
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CNB2004100665798A
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Chinese (zh)
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CN1587102A (en
Inventor
郑向勇
何圣兵
吴德意
孔海南
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • 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

The present invention relates to an integrated sewage treating apparatus combining a biological filter tower and underground percolation, and the integrated sewage treating apparatus is composed of a ground trickling filter tower and an underground percolation system. A filling which is used as a biological film growth carrier is filled in the trickling filter tower which is provided with a ventilation opening, a trickling filter tower water distribution tray is arranged above the trickling filter tower, the lower part of the trickling filter tower is provided with a grid net, and a water outlet pipe of the trickling filter tower is communicated with a water distribution pipe in the underground percolation system; a water outlet pipe of the underground percolation is embedded in a gravel stack at the bottom of the underground percolation system, the upper part of the underground percolation system is especially provided with an anaerobic groove embedded in soil, and an underground percolation water distribution pipe is embedded in a gravel stack at the upper part of the anaerobic groove. Most of ammoniacal nitrogen in sewage in the trickling filter tower is converted into nitrate nitrogen, most of BOD is degraded to enter the underground anaerobic groove, and the rest of suspended particles are intercepted. The nitrate nitrogen simultaneously completes denitrification in the groove, and then, dephosphorization, denitrification and BOD elimination are carried out further after the sewage is filtered by soil to reach a deep treatment effect. The present invention has the advantages of low cost, flexible application and convenient installation and maintenance.

Description

Integrated sewage treating apparatus combining biological fitler tower and underground percolation
Technical field
The present invention relates to a kind of waste disposal plant, relate in particular to a kind of integrated sewage treating apparatus that is composited by ground biological filtering tower combined working and subsurface wastewater infiltration system, belong to the environmental engineering technical field of sewage.
Background technology
China is the country of a water resources shortage, yet along with China's rapid economic development, water pollution problem becomes increasingly conspicuous, each metropolitan inland river all is subjected to pollution in various degree, black smelly, grey smelly phenomenon takes place frequently, and large-area poisonous blue-green algae wawter bloom has then appearred in basins such as Taihu Lake, Dian Chi year after year.
Traditional sewage work of the cities of secondary grade mostly adopts activated sludge process to dispose of sewage, this method is to causing main limiting factor nitrogen of body eutrophication and phosphorus removal effect limited, its disposable construction investment, supporting piping facility cost, working cost cause great burden to finance, and the technical requirement of management operating is than higher.Under the present national conditions of China, the peripheral Rural areas in large-size lake and river and remote mountain area and tourist attractions, it is not high to establish sewage work of cities of secondary grade feasibility.In the technology of present face source sanitary sewage disposal, the subsurface infiltration technology obtains people's attention day by day because its construction cost is low, operational management is simple, treatment effect good.The many Niemi type subsurface infiltration devices of China's application are at present established anaerobism groove (Niemi groove) and are held back organism below system's water inlet pipe, and sewage nitrated aerobic soil district around the groove realizes through entering under the effect of soil surface tension force behind the Niemi groove in effluent stream, thereby often there is the organic carbon source deficiency in the denitrification of sewage after nitrated and the problem of restriction system nitric efficiency, in addition the subsurface infiltration technology also ubiquity stop up easily, the oxygen supply deficiency, problems such as floor space is big, how improving aforesaid these deficiencies of subsurface infiltration becomes the focus that people pay close attention to.
Publication number is the diffusion way that the Chinese patent of CN2286176Y adopts diffusion rapidly and soaks into step by step, in treatment trough from top to bottom successively design pedosphere, diffusion layer, two soakage layers, pedosphere, gravels layer that catchments is arranged.The purpose of this invention is the anti-clogging plug performance that improves the water distribution effect, improves soil, but its structure is limited for the effect that improves system's oxygen delivery capacity.
Publication number is the clearance not high problem of the Chinese patent of CN1405096A at subsurface infiltration method nitrogen, diafiltration diffusion layer below water distributor is introduced a certain amount of raw waste water, provide competent organic carbon source to promote denitrification efficient, but this method has increased the operation easier of operation, the inconvenience management.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of integrated sewage treating apparatus combining biological fitler tower and underground percolation is provided, can effectively improves denitrogenation dephosphorizing degree of depth sewage disposal performance, with low cost, floor space is little, is suitable for the dispersed sewage disposal of community.
For realizing such purpose, waste disposal plant of the present invention drips filter tower by ground and subsurface wastewater infiltration system two portions are formed.The housing that filter tower is dripped on ground is made of materials such as glass reinforced plastic, plastics or concrete, is equipped with in the tower as fillers such as biofilm development carrier such as gravel, plastics or potteries, drips filter tower and has ventilation opening.The top of dripping filter tower arranges that drips a filter tower water distributing tray, and the bottom is provided with the grille network of being worked out by non-woven fabrics, plastics, metal etc., and a filter tower rising pipe of bottom communicates with the subsurface infiltration water distributor in the subsurface wastewater infiltration system.
The shell of subsurface wastewater infiltration system is made with glass reinforced plastic, plastics, concrete, and inside is equipped with the spy and is joined soil, and ruckle is laid in the bottom, and rising pipe is embedded in the ruckle of bottom and from the bottom of subsurface wastewater infiltration system and draws.The spy on bottom ruckle and its top joins soil and separates with fabric, bury an anaerobism groove that fillers such as sand are housed in the top soil of subsurface wastewater infiltration system underground, anaerobism groove top is for separating the last ruckle of soil with fabric, the subsurface infiltration water distributor is imbedded in the ruckle.
The sanitary sewage water distributing tray of flowing through after by the septic tank pre-treatment drops to the filling surface in the bio-trickling filter after the uniformly distributing, drip the natural ventilation effect of filter tower by ventilation opening and realize good reoxygenation situation in the tower.After sewage is handled through the microbial film that drips the filter tower filling surface, enter the subsurface wastewater infiltration system water distributor through grille network by dripping the collection of filter tower rising pipe, distribute by water distributor, through the surface is long the anaerobism groove that enters subsurface wastewater infiltration system behind the biomembranous ruckle arranged, and in the anaerobism groove, reach after enough residence time to join under the effect of soil surface tensile and climb the spy, to lower floor's pedosphere infiltration, in pedosphere, further carry out collecting the discharge system by rising pipe after the Ecological Disposal continuously.
Subsurface wastewater infiltration system among the present invention can be placed in the shell made from glass reinforced plastic, plastics, concrete, constitute with extraneous relatively independent system and place into the soil, can the floriculture turf on system's table soil etc. the greening crop, realize the combination of ecological decontamination and landscape construction.The whole above and below ground of the present invention integrated sewage treating apparatus can be installed in the greening place of house garden or sub-district, regulate corresponding size according to the sewage payload, the filler and the soil in the subsurface wastewater infiltration system that drip in the filter tower can be changed at any time according to the operation needs.
The present invention utilizes the good advantage of biological filtering tower combined working oxygen supply to finish the nitrated of most of organic degraded and ammonia nitrogen dexterously, make ammonia nitrogen nitrated occur in before the rejection to organics of subsurface infiltration device, utilize the anaerobism groove of subsurface wastewater infiltration system to hold back remaining organism simultaneously as denitrifying carbon source, realize the raising of denitrification efficient, simultaneously the anaerobism groove is held back liquefaction and has been solved the sludge treatment problem that the biological filtering tower combined working biofilm detachment causes again organic, subsurface infiltration possesses the dephosphorization ability and can further handle the water outlet of biological filtering tower combined working in addition, makes water outlet reach the requirement of advanced treatment.The present invention adopts ground biological filtering tower combined working and the compound integral structure of subsurface wastewater infiltration system, water outlet after the efficient processing of filter tower is introduced in the subsurface wastewater infiltration system, underground diafiltration influent load is reduced, thereby can reduce filter tower height and the required processing area of subsurface wastewater infiltration system, volume reduce minimizing with floor space, can be designed to integral structure and suite of equipment easily, be convenient to produce, transport and install, filter tower filler and soil can be changed as required, are suitable for the dispersed sewage disposal of single household or community.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1 for dripping the filter tower water distributing tray, and 2 for dripping filter tower, and 3 for dripping the filter tower filler, and 4 is grille network, 5 for dripping the filter tower rising pipe, and 6 is the subsurface infiltration water distributor, and 7 is last ruckle, and 8 is subsurface wastewater infiltration system, 9 is the anaerobism groove, and 10 for the spy joins soil, and 11 is the bottom ruckle, and 12 is system's rising pipe
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is further described.
Waste disposal plant of the present invention drips filter tower 2 by ground and subsurface wastewater infiltration system 8 two portions are formed, and structure as shown in Figure 1.The housing that filter tower 2 is dripped on ground is made of materials such as glass reinforced plastic, plastics or concrete, and the filler 3 as the biofilm development carrier is housed in the tower, drips filter tower 2 and has ventilation opening.The top of dripping filter tower 2 arranges that drips a filter tower water distributing tray 1, and the bottom is provided with grille network 4, and a filter tower rising pipe 5 of bottom communicates with the subsurface infiltration water distributor 6 in the subsurface wastewater infiltration system 8.
The shell of subsurface wastewater infiltration system 8 is made with glass reinforced plastic, plastics, concrete, and inside is equipped with the spy and is joined soil 10, and ruckle 11 is laid in the bottom, and rising pipe 12 is embedded in the ruckle 11 of bottom and from the bottom of subsurface wastewater infiltration system 8 and draws.The spy on bottom ruckle 11 and its top joins soil 10 usefulness fabrics and separates, bury an anaerobism groove 9 that fillers such as sand are housed in the top soil of subsurface wastewater infiltration system 8 underground, anaerobism groove 9 tops are for separating the last ruckle 7 of soil with fabric, subsurface infiltration water distributor 6 is imbedded in the ruckle 7.
Sanitary sewage enters after by the septic tank pre-treatment and drips a filter tower water distributing tray 1, and sewage drops to bio-trickling filter 2 after the uniformly distributing in dripping filter tower water distributing tray 1, and sewage directly contacts with air in this process, realizes good reoxygenation.Drip filter tower 2 inside and can form by gravel, plastic filler, pottery etc., it is characterized in that specific surface is easy to microorganism growth greatly as the filler 3 of biofilm development carrier.Drip filter tower 2 and have ventilation opening, utilize the natural ventilation effect to realize good reoxygenation situation in the tower, effluent stream is degraded to the most of BOD (biochemical oxygen demand (BOD)) in the sewage by microbial film when filtrate, in this process, the most ammonia-nitrogen in the sewage is converted into nitric nitrogen under the competent characteristics of this device oxygen supply simultaneously.Sewage enters a filter tower rising pipe 5 through grille network 4 after handling through the microbial film of filtrate, grille network 4 is formed by braidings such as non-woven fabrics, plastics, metals, and its effect is to stop that bulk suspended substance in the sewage and the bulk microbial film that comes off directly enter subsurface wastewater infiltration system and cause obstruction.The sewage that drips filter tower of flowing through enters subsurface infiltration water distributor 6 by dripping the collection of filter tower rising pipe, subsurface infiltration water distributor 6 is imbedded with fabric and is separated in the ruckle 7 of soil, sewage is further handled the anaerobism groove 9 that the back uniform distribution enters subsurface wastewater infiltration system by microbial film in ruckle, anaerobism groove 9 is equipped with fillers such as sand, sewage is held back, the microbial film that most suspended substances and said process come off stops acidifying liquefaction in anaerobism groove 9, and the nitric nitrogen in the sewage carries out denitrification under the competent condition of carbon source in anaerobism groove 9, sewage reach a certain height to stop after the enough time to join under the soil 10 capillary effects the spy in anaerobism groove 9 and climbs, continuously to lower floor's pedosphere infiltration, there are a large amount of air in the edaphic gap, sewage is in diafiltration process, remaining organic pollutant and ammonia nitrogen are by aerobic microbiological mineralising or degraded in the soil, and the phosphorus in the sewage is then removed by adsorption by soil.Sewage enters system's rising pipe 12 after through the biological and ecological two-step purification, rising pipe 12 is embedded in fabric and separates in the bottom ruckle 11 of soil.Whole subsurface wastewater infiltration system 8 can be placed in the shell made from glass reinforced plastic, plastics, concrete, constitute with extraneous relatively independent system and place into the soil, can the floriculture turf on system's table soil etc. the greening crop, realize the combination of ecological decontamination and landscape construction.The whole above and below ground of the present invention integrated sewage treating apparatus can be installed in the greening place of house garden or sub-district, regulate corresponding size according to the sewage payload, the filler and the soil in the subsurface wastewater infiltration system 8 that drip in the filter tower 2 can be changed at any time according to the operation needs.
Below be a specific embodiment of the present invention:
At family, villa district, Jin Jiang River paradise, Shanghai City other, amount to population 5 people, day sewage generating capacity is about 1 ton, utilize the greening place of the garden 3m * 5m of family, placing the cross section is the high 1 meter glass steel bio-trickling filter of 0.5m * 0.5m, the gravel filling that diameter is 3cm~8cm is housed in the tower, and outside kind of bio-trickling filter is implanted with parthenocissus rattan class green plants, and appearance is covered, reach and beautify effect, the subsurface wastewater infiltration system area is 2m * 2m, high 60cm, and shell is made with glass reinforced plastic, all imbed in the soil, the surface Turf Culture recovers original appearance, and it is the soil that is added with phosphorus adsorbent such as flyash that the used spy of subsurface wastewater infiltration system joins soil.Sewage promotes the system, the COD in the water inlet, NH of entering by sump pump after through the septic tank pre-treatment 4 +-N, TN, TP concentration is average out to 110.5mg/L respectively, 18.1mg/L, 34.6mg/L, 10.5mg/L, going out water concentration after system handles is 10.2mg/L, 0.9mg/L, 3.1mg/L, 0.2mg/L, clearance is respectively 90.8%, 95.0%, 91.0%, 98.1%, " miscellaneous domestic water quality standard " that treat effluent satisfies promulgated by the ministries or commissions of the Central Government of nation-building (CJ25.1-89).

Claims (4)

1, a kind of integrated sewage treating apparatus combining biological fitler tower and underground percolation, it is characterized in that dripping filter tower (2) and subsurface wastewater infiltration system (8) two portions are formed by ground, have the filler (3) that is equipped with in filter tower (2) tower as the biofilm development carrier that drips of ventilation opening, the top of dripping filter tower (2) arranges that drips a filter tower water distributing tray (1), the bottom is provided with grille network (4), and a filter tower rising pipe (5) of bottom communicates with the subsurface infiltration water distributor (6) in the subsurface wastewater infiltration system (8); Subsurface wastewater infiltration system (8) inside is equipped with the spy who is added with phosphorus adsorbent flyash and is joined soil (10), ruckle (11) is laid in the bottom, rising pipe (12) is embedded in the bottom ruckle (11) and from the bottom of subsurface wastewater infiltration system (8) and draws, the spy on bottom ruckle (11) and its top joins soil (10) and separates with fabric, bury an anaerobism groove (9) that the sand filler is housed in the top soil of subsurface wastewater infiltration system (8) underground, anaerobism groove (9) top is for separating the last ruckle (7) of soil with fabric, subsurface infiltration water distributor (6) is imbedded in the ruckle (7).
2, the integrated sewage treating apparatus combining biological fitler tower and underground percolation of claim 1, the housing that it is characterized in that described filter tower (2) is made of glass reinforced plastic, plastics or concrete, and inner filler (3) adopts big gravel, plastic filler or the pottery of specific surface.
3, the integrated sewage treating apparatus combining biological fitler tower and underground percolation of claim 1 is characterized in that described grille network (4) is by non-woven fabrics, plastics or metal knitted forming.
4, the integrated sewage treating apparatus combining biological fitler tower and underground percolation of claim 1, it is characterized in that described subsurface wastewater infiltration system (8) is whole is placed in the shell made from glass reinforced plastic, plastics or concrete, constitutes with extraneous relatively independent system to place into the soil.
CNB2004100665798A 2004-09-23 2004-09-23 Integrated sewage treating apparatus combining biological fitler tower and underground percolation Expired - Fee Related CN1272261C (en)

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CN1272261C true CN1272261C (en) 2006-08-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708682A (en) * 2013-12-30 2014-04-09 北京工业大学 Method for coupling denitrifying dephosphatation and partial nitrification

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103601291B (en) * 2013-11-26 2015-12-30 深圳市深港产学研环保工程技术股份有限公司 A kind of method for the treatment of low carbon-nitrogen ratio sewage and denitrification filtration system
CN104556384A (en) * 2015-01-26 2015-04-29 上海交通大学 Device for improving sewage denitrification effect of soil infiltration treatment system
CN105621790A (en) * 2015-12-25 2016-06-01 常州大学 Method for processing high-concentration ammonia-nitrogen wastewater through soil infiltration
CN107500468B (en) * 2017-07-20 2020-11-06 安徽师范大学 Rural dispersion-centralized artificial sponge iron sewage treatment device
CN109205966A (en) * 2018-11-20 2019-01-15 景德镇陶瓷大学 A kind of integrated A based on linker mode/O membrane bioreactor and sewage water treatment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103708682A (en) * 2013-12-30 2014-04-09 北京工业大学 Method for coupling denitrifying dephosphatation and partial nitrification
CN103708682B (en) * 2013-12-30 2015-05-20 北京工业大学 Method for coupling denitrifying dephosphatation and partial nitrification

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