CN102260023A - Apparatus for treating domestic sewage by utilizing anaerobic expanded granular sludge bed - Google Patents

Apparatus for treating domestic sewage by utilizing anaerobic expanded granular sludge bed Download PDF

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Publication number
CN102260023A
CN102260023A CN201110169243A CN201110169243A CN102260023A CN 102260023 A CN102260023 A CN 102260023A CN 201110169243 A CN201110169243 A CN 201110169243A CN 201110169243 A CN201110169243 A CN 201110169243A CN 102260023 A CN102260023 A CN 102260023A
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China
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communicated
active carbon
truncated cone
housed
drum
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CN201110169243A
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CN102260023B (en
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高大文
姚晨
陶彧
任南琪
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

The invention provides an apparatus for treating domestic sewage by utilizing an anaerobic expanded granular sludge bed, and relates to an apparatus for treating the domestic sewage. The apparatus is used for solving the problems that the biomass needs a long period, the sewage emission requirement is achieved by aerobic treatment, the degradation rate is low at a low temperature and odorous and corrosive substances are generated in existing anaerobic sewage treatment processes. The apparatus is characterized in that: a water inflow tank is communicated with the bottom of an outer drum holding sludge and granular activated carbon; the bottom of an upper drum is fixedly connected with the top of the outer drum holding the sludge and granular activated carbon; a hollow fiber membrane is located in an inner drum holding granular activated carbon; the small-diameter end of a first round-table-shaped drum is communicated with a middle drum; a second round-table-shaped drum is arranged outside the first round-table-shaped drum; the large-diameter end of the second round-table-shaped drum is fixedly connected with the inner wall of the upper drum; the top of the hollow fiber membrane is communicated with a membrane component through a first water outflow pump; both the top of the upper drum and the top of the membrane component are communicated with a gas collecting bottle; and the membrane component is communicated with a water outflow tank through a second water outflow pump. The apparatus provided by the invention is used to treat the domestic sewage.

Description

Utilize the device of anaerobic expanded granular sludge bed processing sanitary sewage
Technical field
The present invention relates to a kind of device of handling sanitary sewage.
Background technology
At present, the treatment process of China and world other countries sanitary sewage mainly adopts aerobic treatment (as activated sludge process etc.), anaerobic treatment (as USAB etc.), though can reach treatment effect preferably, but still have many problems.
The problem that aerobic treatment exists: 1, energy consumption height: aerobic process needs sewage is carried out oxygenation, need to consume a large amount of electric energy, it is estimated, a Sewage Plant that adopts traditional activated sludge process, 75% of overall running cost expends on electric energy, and the burden on still energy-conservation economically is all heavier; 2, sludge yield height: the productive rate of aerobic microbiological is generally up to 0.2-0.6kgVSS/kgCOD, therefore need dewater to mud, subsequent disposal such as security landfill or burning, increased the cost of sewage disposal; 3, add organic carbon source: for the insufficient waste water of some carbon sources, need additional carbon, increased operational and administrative expenses; 4, management is inconvenient: the infrastructure investment of aerobic process is bigger, and the operational management inconvenience, is not suitable for developing the cities and towns and the rural area that fall behind relatively and uses;
The problem that anaerobic treatment exists: it is long 1, to desire to reach the cycle that the ideal biomass needs; 2, often need further to reach emission request by aerobic treatment; 3, the speed of degraded is low under the cold condition; 4, produce stink and corrosives.
Summary of the invention
The purpose of this invention is to provide a kind of device that utilizes anaerobic expanded granular sludge bed processing sanitary sewage, the cycle that biomass needs when solving present anaerobic treatment sewage is long, the speed of degraded is low and produce the problem of stink and corrosives down need to reach emission request, cold condition by aerobic treatment.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: the device of described processing sanitary sewage comprises inlet chest; intake pump; reflux pump; first goes out water pump; air collector; membrane module; second goes out water pump; water tank; the device of described processing sanitary sewage also comprises reactor; reactor comprises the urceolus that mud and granulated active carbon are housed; middle tube; the inner core of granulated active carbon is housed; hollow-fibre membrane and triphase separator; triphase separator is made of the first truncated cone-shaped tube and the second truncated cone-shaped tube; the water outlet of inlet chest is communicated with the bottom of the urceolus that mud and granulated active carbon are housed by intake pump and reflux pump successively; the sidewall that the urceolus of mud and granulated active carbon is housed is provided with a row thief hatch; the bottom of top cylinder is affixed with the upper end of the urceolus that mud and granulated active carbon are housed; middle tube is located in the urceolus that mud and granulated active carbon are housed; the inner core that granulated active carbon is housed is located in the middle tube; be equipped with in the inner core of granulated active carbon and be provided with hollow-fibre membrane; the smaller diameter end of the first truncated cone-shaped tube is communicated with middle tube; the distance that the second truncated cone-shaped tube is located between the inwall at the outward flange of larger diameter end of the outside and first truncated cone-shaped tube of the first truncated cone-shaped tube and the second truncated cone-shaped tube opposite position place is 1-3mm; the larger diameter end of the second truncated cone-shaped tube and the inwall of top cylinder are affixed; and the outward flange of the larger diameter end of the second truncated cone-shaped tube and top cylinder opposite position place inwall between distance be 4-6mm; the upper end of hollow-fibre membrane goes out water pump by first and is communicated with membrane module; the upper end of top cylinder and the upper end of membrane module all are communicated with air collector; membrane module goes out water pump by second and is communicated with water tank, and the upper end closed of the inner core of granulated active carbon is housed.
The present invention has following beneficial effect: 1, this technology is compared with traditional aerobic technology, saves at least 70% oxygen-consumption; 2, this technology is compared with traditional anaerobism technology, does not need further to reach emission request by aerobic treatment, and organic removal rate can promote 20%-30%; 3, this technology is converted into methane to greatest extent with organism, the degradation rate height, thus realize energy, alleviate present energy starved present situation greatly; 4, can shorten hydraulic detention time by optimizing operating parameter, thereby improve processing efficiency, the cycle is short and do not produce stink and corrosives.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention, and Fig. 2 is the structural representation of triphase separator.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2; the device of the processing sanitary sewage of present embodiment comprises inlet chest 1; intake pump 2; reflux pump 3; first goes out water pump 4; air collector 5; membrane module 6; second goes out water pump 7; water tank 8; it is characterized in that: the device of described processing sanitary sewage also comprises reactor 9; reactor 9 comprises the urceolus 10 that mud and granulated active carbon are housed; middle tube 11; the inner core 12 of granulated active carbon is housed; hollow-fibre membrane 13; triphase separator 14 and top cylinder 17; triphase separator 14 is made of the first truncated cone-shaped tube 15 and the second truncated cone-shaped tube 16; the water outlet of inlet chest 1 is communicated with the bottom of the urceolus 10 that mud and granulated active carbon are housed by intake pump 2 and reflux pump 3 successively; the sidewall that the urceolus 10 of mud and granulated active carbon is housed is provided with a row thief hatch 10-1; the bottom of top cylinder 17 is affixed with the upper end of the urceolus 10 that mud and granulated active carbon are housed; middle tube 11 is located in the urceolus 10 that mud and granulated active carbon are housed; the inner core 12 that granulated active carbon is housed is located in the middle tube 11; be equipped with in the inner core 12 of granulated active carbon and be provided with hollow-fibre membrane 13; the smaller diameter end of the first truncated cone-shaped tube 15 is communicated with middle tube 11; the distance that the second truncated cone-shaped tube 16 is located between the inwall at the outward flange of larger diameter end of the outside and first truncated cone-shaped tube 15 of the first truncated cone-shaped tube 15 and the second truncated cone-shaped tube, 16 opposite position places is 1-3mm; the inwall of the larger diameter end of the second truncated cone-shaped tube 16 and top cylinder 17 is affixed; and the outward flange of the larger diameter end of the second truncated cone-shaped tube 16 and top cylinder 17 opposite position places inwall between distance be 4-6mm; the upper end of hollow-fibre membrane 13 goes out water pump 4 by first and is communicated with membrane module 6; the upper end of the upper end of top cylinder 17 and membrane module 6 all is communicated with air collector 5; membrane module 6 goes out water pump 7 by second and is communicated with water tank 8, and the upper end closed of the inner core 12 of granulated active carbon is housed.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, the top cylinder 17 of present embodiment is communicated with inlet chest 1 by intake pump 2, and this structure is used to control urceolus water inlet flow velocity.Other compositions and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 present embodiment is described, the membrane module 6 of present embodiment is the PE hollow-fibre membrane.This membrane module is used for trapped particles gac, mud and larger molecular organics.Other compositions and annexation are identical with embodiment one.
Embodiment four: in conjunction with Fig. 1 present embodiment is described, the device of present embodiment also comprises pressure transmitter 18, and pressure transmitter 18 is arranged on membrane module 6 and second and goes out between the water pump 7, and this pressure transmitter is used to measure transmembrane pressure.Other compositions and annexation are identical with embodiment one.
Principle of work: sewage enters the urceolus that mud and granulated active carbon are housed 10 reactor 9 from inlet chest 1 by intake pump 2 and reflux pump 3; the formation upflowing is expanded granular sludge bed; microorganism fully contacts with organism in the sewage; thereby degradation of organic substances; through behind the triphase separator 14; water and mud three phase separation after gaseous methane that decomposites and the processing; tube 11 during a water part after the processing enters; flow to downwards; another part enters the inner core 12 that granulated active carbon is housed by backflow; the urceolus 10 that mud refluxes mud and granulated active carbon into are housed; water outlet further reduces the pollution of film by the absorption of granulated active carbon when the inner core 12 of granulated active carbon is equipped with in inflow; by first effect that goes out water pump 4 water outlet is extracted from hollow-fibre membrane 13; reach further purification, enter into water tank 8 through membrane module 6 again.

Claims (4)

1. device that utilizes anaerobic expanded granular sludge bed processing sanitary sewage; the device of described processing sanitary sewage comprises inlet chest (1); intake pump (2); reflux pump (3); first goes out water pump (4); air collector (5); membrane module (6); second goes out water pump (7); water tank (8); it is characterized in that: the device of described processing sanitary sewage also comprises reactor (9); reactor (9) comprises the urceolus (10) that mud and granulated active carbon are housed; middle tube (11); the inner core (12) of granulated active carbon is housed; hollow-fibre membrane (13); triphase separator (14) and top cylinder (17); triphase separator (14) is made of the first truncated cone-shaped tube (15) and the second truncated cone-shaped tube (16); the water outlet of inlet chest (1) is communicated with the bottom of the urceolus that mud and granulated active carbon are housed (10) by intake pump (2) and reflux pump (3) successively; the sidewall that the urceolus (10) of mud and granulated active carbon is housed is provided with a row thief hatch (10-1); the bottom of top cylinder (17) is affixed with the upper end of the urceolus (10) that mud and granulated active carbon are housed; middle tube (11) is located in the urceolus (10) that mud and granulated active carbon are housed; the inner core (12) that granulated active carbon is housed is located in the middle tube (11); be equipped with in the inner core (12) of granulated active carbon and be provided with hollow-fibre membrane (13); the smaller diameter end of the first truncated cone-shaped tube (15) is communicated with middle tube (11); the distance that the second truncated cone-shaped tube (16) is located between the inwall at the outward flange of larger diameter end of the outside and first truncated cone-shaped tube (15) of the first truncated cone-shaped tube (15) and second truncated cone-shaped tube (16) the opposite position place is 1-3mm; the inwall of the larger diameter end of the second truncated cone-shaped tube (16) and top cylinder (17) is affixed; and the outward flange of the larger diameter end of the second truncated cone-shaped tube (16) and top cylinder (17) opposite position place inwall between distance be 4-6mm; the upper end of hollow-fibre membrane (13) goes out water pump (4) by first and is communicated with membrane module (6); the upper end of the upper end of top cylinder (17) and membrane module (6) all is communicated with air collector (5); membrane module (6) goes out water pump (7) by second and is communicated with water tank (8), and the upper end closed of the inner core (12) of granulated active carbon is housed.
2. according to the described a kind of device that utilizes anaerobic expanded granular sludge bed processing sanitary sewage of claim 1, it is characterized in that top cylinder (17) is communicated with inlet chest (1) by intake pump (2).
3. according to claim 1 or 2 described a kind of devices that utilize anaerobic expanded granular sludge bed processing sanitary sewage, it is characterized in that membrane module (6) is the PE hollow-fibre membrane.
4. according to the described a kind of device that utilizes anaerobic expanded granular sludge bed processing sanitary sewage of claim 3, it is characterized in that described device also comprises pressure transmitter (18), pressure transmitter (18) is arranged on membrane module (6) and second and goes out between the water pump (7).
CN 201110169243 2011-06-22 2011-06-22 Apparatus for treating domestic sewage by utilizing anaerobic expanded granular sludge bed Expired - Fee Related CN102260023B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310582A (en) * 2014-11-10 2015-01-28 哈尔滨工业大学 Integrated type anaerobic membrane bioreactor capable of effectively lowering membrane pollution
CN105600924A (en) * 2015-12-22 2016-05-25 浙江大学 Device and method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1128497A (en) * 1997-07-11 1999-02-02 Ishikawajima Harima Heavy Ind Co Ltd Startup method of upflow anaerobic sludge bed reactor and granule formation promoting device in upflow anaerobic sludge bed reactor
CN101028954A (en) * 2006-03-03 2007-09-05 同济大学 Anaerobic reactor
CN101113047A (en) * 2007-06-20 2008-01-30 江南大学 Method of treating hard-degrading high concentrated organic wastewater
CN101456651A (en) * 2009-01-04 2009-06-17 上海大学 Rubbish initial leachate treatment method
CN101792209A (en) * 2010-03-03 2010-08-04 陕西科技大学造纸环保研究所 Anaerobic expanded granular sludge bed reactor and use thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1128497A (en) * 1997-07-11 1999-02-02 Ishikawajima Harima Heavy Ind Co Ltd Startup method of upflow anaerobic sludge bed reactor and granule formation promoting device in upflow anaerobic sludge bed reactor
CN101028954A (en) * 2006-03-03 2007-09-05 同济大学 Anaerobic reactor
CN101113047A (en) * 2007-06-20 2008-01-30 江南大学 Method of treating hard-degrading high concentrated organic wastewater
CN101456651A (en) * 2009-01-04 2009-06-17 上海大学 Rubbish initial leachate treatment method
CN101792209A (en) * 2010-03-03 2010-08-04 陕西科技大学造纸环保研究所 Anaerobic expanded granular sludge bed reactor and use thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310582A (en) * 2014-11-10 2015-01-28 哈尔滨工业大学 Integrated type anaerobic membrane bioreactor capable of effectively lowering membrane pollution
CN104310582B (en) * 2014-11-10 2016-03-09 哈尔滨工业大学 A kind of integrated membrane coupled anaerobic bioreactor of effective reduction fouling membrane
CN105600924A (en) * 2015-12-22 2016-05-25 浙江大学 Device and method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles

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