CN203238141U - Sewage biological treatment membrane filtration system - Google Patents

Sewage biological treatment membrane filtration system Download PDF

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Publication number
CN203238141U
CN203238141U CN2013202674724U CN201320267472U CN203238141U CN 203238141 U CN203238141 U CN 203238141U CN 2013202674724 U CN2013202674724 U CN 2013202674724U CN 201320267472 U CN201320267472 U CN 201320267472U CN 203238141 U CN203238141 U CN 203238141U
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China
Prior art keywords
membrane filtration
pond
sewage
pool
pipeline
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Expired - Fee Related
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CN2013202674724U
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Chinese (zh)
Inventor
张琦东
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Sichuan College of Architectural Technology
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Sichuan College of Architectural Technology
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Priority to CN2013202674724U priority Critical patent/CN203238141U/en
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Publication of CN203238141U publication Critical patent/CN203238141U/en
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Abstract

The utility model discloses a sewage biological treatment membrane filtration system which comprises a grating well, an adjustment pool, an anoxic pool, an aerobic pool, a membrane filtration pool and a clean water pool, wherein a membrane component is arranged in the membrane filtration pool; an upper part water collection pipe of the membrane component is connected with a suction pump through a pipeline; the lower part of the membrane component is connected with a cleaning air blower through a pipeline; an aeration disk is arranged at the bottom of the membrane filtration pool and is connected with the aeration air blower through a pipeline; an axial flow pump is arranged at the bottom of a barrier wall between the aerobic pool and the membrane filtration pool. According to the sewage biological treatment membrane filtration system, a sewage treatment technology is optimized; the sewage biological treatment membrane filtration system has a small number of reactors, a small number of steps and high efficiency; moreover, sewage can be denitrified and dephosphorized through an internal circulation denitrification technology; the membrane component is directly used for filtering discharged water in the water pool, and a sedimentation basin is not needed; the sewage biological treatment membrane filtration system occupies a small area.

Description

A kind of biological sewage treatment membrane filtration system
Technical field
The utility model relates to technical field of sewage, is specifically related to a kind of biological sewage treatment membrane filtration system.
Background technology
Biological sewage treatment is the general name of disposing of sewage with biological method, one of technology the most widely in biological sewage treatment is used, biological sewage treatment mainly is converted into simple inorganics to organism in the sewage by the Decomposition of microorganism, sewage is purified, by can be divided into anaerobic biological treatment and aerobic biological treatment two large classes to the oxygen demand situation.
In sewage treatment process, remove particularly important to nitrogen phosphorus, the Eutrophication of the water body that nitrogen phosphorus excessive emissions has caused, still be that water pollutes the significant problem that exists, sewage disposal is no longer only to remove organism (COD etc.) as purpose, but should remove again denitrogenation dephosphorizing of organism, reduce the water body Eutrophication, traditional Biological Nitrogen Removal Processe, comprise A/0, improvement A/0, the techniques such as oxidation ditch, though generally have Nitrogen/Phosphorus Removal, but reactor is many, complex process, and energy consumption is high, in order to obtain simultaneously preferably Nitrogen/Phosphorus Removal, needing increases sludge reflux or additional carbon, has not only increased the process operation expense, and has produced a large amount of excess sludges.The denitrification nitrogen and phosphorus removal technology is existing certain development in recent years, electron acceptor(EA) when it replaces oxygen as dephosphorization with nitrate radical, by Denitrifying Phosphate Accumulating Organisms denitrogenation and dephosphorization process are united two into one, can overcome the contradiction between the traditional technology denitrogenation dephosphorizing, reduce aeration rate, the reduce mud discharge capacity is the denitrification dephosphorization technique of energy-efficient and Sustainable development, and this is focus and the inexorable trend of present municipal effluent denitrification dephosphorization technique research.About the denitrification nitrogen and phosphorus removal Technology, a lot of researchs are also arranged now, although method can both obtain preferably treatment effect greatly at present, but ubiquity will carry out precipitate and separate to Denitrifying Phosphate Accumulating Organisms with a plurality of settling tanks in the technique, exist reactor many, many weak points such as step is many, and the reactor useful volume is little, and efficient is low, be awkward.
Sewage needs precipitation and filtration treatment through after carrying out a biological disposal upon, and the existing technology that adopts is settling tank, and still the settlement of sewage poor effect after the biological treatment usually need to add medicament, and floor space is larger.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of biological sewage treatment membrane filtration system is provided, optimize the technique of sewage disposal, this is the sewage disposal biochemical reaction cell system that a kind of reactor is few, step is few, efficient is high, utilizing simultaneously the internal circulation denitrification technology that sewage is carried out denitrogenation dephosphorizing processes, directly adopt membrane module to filter water outlet in the pond, need not settling tank, floor space is little.
The purpose of this utility model is achieved through the following technical solutions: a kind of biological sewage treatment membrane filtration system comprises grille well, equalizing tank, anoxic pond, Aerobic Pond, membrane filtration pond and the clean water basin connected successively; Described membrane filtration is provided with membrane module in the pond, and the upper-part centralized water pipe of membrane module is connected with suction pump by pipeline, and the bottom of membrane module is connected with cleaning blower by pipeline; The bottom in described membrane filtration pond is provided with aeration plate, and aeration plate is connected with aeration blower by pipeline; Partition wall bottom between described Aerobic Pond and the membrane filtration pond is provided with propeller pump.
Be provided with the elastic biological filler in the described anoxic pond, the bottom of anoxic pond is provided with water distributor, and water distributor is connected by the lift pump of pipeline with the equalizing tank bottom.
Be provided with the combination biologic packing material in the described Aerobic Pond, the bottom of Aerobic Pond is provided with aeration tube, and aeration tube is connected with aeration blower by pipeline.
Be provided with dissolved oxygen instrument in the described Aerobic Pond.
Further, described clean water basin inner bottom part is provided with scavenging pump, and scavenging pump is connected with the top of membrane module by wash tube.
Principle of work of the present utility model: need at first enter grille well from water inlet pipe by sewage to be processed, grid maker is with larger suspended substance removal in the sewage, then enter equalizing tank, with water quality, the inhomogeneous sewage of the water yield stops the regular hour in equalizing tank, sewage is fully mixed in equalizing tank, even to guarantee the subsequent disposal structures, steady running, the sewage of processing through equalizing tank passes through lift pump suction anoxic pond, sewage is evenly distributed in the anoxic pond by water distributor, remove portion suspended substance and reduce the SS of sewage in anoxic pond, BOD, the load indexs such as COD, anoxic pond is converted into small-molecule substance with macromolecular substance, ring texture is converted into chain-like structure, further improved the BOD/COD ratio of waste water, increased the biodegradability of waste water, for follow-up aerobic treatment creates conditions, the elastic biological filler is conducive to microorganism growth.
Then sewage enters Aerobic Pond and membrane filtration pond, be provided with the combination biologic packing material in the Aerobic Pond, the bottom of Aerobic Pond is provided with aeration tube, and aeration tube is connected with aeration blower by pipeline, blast air in Aerobic Pond and membrane filtration pond, aeration tube and aeration plate are micro-bubble with air dispersion, have increased the dissolved oxygen in the water, dissolved oxygen instrument can detect oxygen in water in real time, and control blasts air capacity.Utilize in the Aerobic Pond and perch in it that the metabolism of biomembranous adsorption and microorganism reaches the purpose of purifying waste water on combination biologic packing material surface, microorganism in the microbial film under the condition of aerobic with a part of organism in the sewage for the synthesis of new cell, another part organism is carried out katabolism in order to obtain the synthetic required energy of cell, and its final product is the stable materials such as carbonic acid gas and water.To Aerobic Pond, simultaneously reflux pump is the base section sludge reflux with the sewage backflow in the membrane filtration pond for propeller pump, thereby improved the Nitrogen/Phosphorus Removal of biological sewage treatment.
Sewage behind the biochemistry in the membrane filtration pond, membrane module by suction pump with clear water from membrane filtration pond suction clean water basin, finish the biological treatment to sewage, the normal pore size of membrane module is 0.1 micron.When membrane module need to clean, start scavenging pump and cleaning blower membrane module is carried out the air water cleaning, chemicals dosing plant adds cleaning agent, recovers the filter effect of membrane module.
Compared with prior art, the utlity model has following beneficial effect: the utility model biological sewage treatment membrane filter appts is optimized the technique of sewage disposal, can shorten the technical process of sewage disposal, this is the sewage disposal biochemical reaction cell system that a kind of reactor is few, step is few, efficient is high; Utilize simultaneously the internal circulation denitrification technology that sewage is carried out denitrogenation dephosphorizing and process, reduce traditional sludge and reflux, reduced aeration rate; Be provided with independent membrane filtration pond, directly adopt membrane module to filter water outlet in the pond, need not settling tank, floor space is little, reduces post precipitation pond medicament and uses; Anti impulsion load is strong, and is stable.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is vertical view of the present utility model.
The corresponding name of Reference numeral is called in the accompanying drawing: 1, water inlet pipe, 2, grille well, 3, grid maker, 4, equalizing tank, 5, lift pump, 6, under meter, 7, anoxic pond, 8, Aerobic Pond, 9, dissolved oxygen instrument, 10, water distributor, 11, the elastic biological filler, 12, the combination biologic packing material, 13, aeration tube, 14, reflux pump, 15, the membrane filtration pond, 16, propeller pump, 17, aeration plate, 18, aeration blower, 19, membrane module, 20, cleaning blower, 21, suction pump, 22, clean water basin, 23, rising pipe, 24, scavenging pump, 25, wash tube, 26, chemicals dosing plant.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiment of the present utility model is not limited to this.
Embodiment: as shown in Figure 1 and Figure 2, a kind of biological sewage treatment membrane filtration system comprises grille well 2, equalizing tank 4, anoxic pond 7, Aerobic Pond 8, membrane filtration pond 15 and the clean water basin 22 connected successively; Be provided with membrane module 19 in the described membrane filtration pond 15, the upper-part centralized water pipe of membrane module 19 is connected with suction pump 21 by pipeline, and the bottom of membrane module 19 is connected with cleaning blower 20 by pipeline; The bottom in described membrane filtration pond 15 is provided with aeration plate 17, and aeration plate 17 is connected with aeration blower 18 by pipeline; Partition wall bottom between described Aerobic Pond 8 and the membrane filtration pond 15 is provided with propeller pump 16.
Be provided with elastic biological filler 11 in the described anoxic pond 7, the bottom of anoxic pond 7 is provided with water distributor 10, and water distributor 10 is connected by the lift pump 5 of pipeline with equalizing tank 4 bottoms.
Be provided with combination biologic packing material 12 in the described Aerobic Pond 8, the bottom of Aerobic Pond 8 is provided with aeration tube 13, and aeration tube 13 is connected with aeration blower 18 by pipeline.
Be provided with dissolved oxygen instrument 9 in the described Aerobic Pond 8.
Further, described clean water basin 22 inner bottom parts are provided with scavenging pump 24, and scavenging pump 24 is connected with the top of membrane module 19 by wash tube 25.
The utility model is when work, need at first enter grille well 2 from water inlet pipe 1 by sewage to be processed, grid maker 3 is with larger suspended substance removal in the sewage, then enter equalizing tank 4, with water quality, the inhomogeneous sewage of the water yield stops the regular hour in equalizing tank 4, make sewage in equalizing tank 4 interior abundant mixing, even to guarantee the subsequent disposal structures, steady running, the sewage of processing through equalizing tank 4 passes through lift pump 5 suction anoxic pond 7, sewage is evenly distributed in the anoxic pond 7 by water distributor 10, remove portion suspended substance and reduce the SS of sewage in anoxic pond 7, BOD, the load indexs such as COD, anoxic pond 7 is converted into small-molecule substance with macromolecular substance, ring texture is converted into chain-like structure, further improved the BOD/COD ratio of waste water, increased the biodegradability of waste water, for follow-up aerobic treatment creates conditions, elastic biological filler 11 is conducive to microorganism growth.
Then sewage enters Aerobic Pond 8 and membrane filtration pond 15, be provided with combination biologic packing material 12 in the Aerobic Pond 8, the bottom of Aerobic Pond 8 is provided with aeration tube 13, and aeration tube 13 is connected with aeration blower 18 by pipeline, blast air in Aerobic Pond 8 and membrane filtration pond 15, aeration tube 13 and aeration plate 17 are micro-bubble with air dispersion, have increased the dissolved oxygen in the water, dissolved oxygen instrument 9 can detect oxygen in water in real time, and control blasts air capacity.Aerobic Pond 8 interior utilizations are perched the metabolism that makes up the upper biomembranous adsorptions in biologic packing material 12 surfaces and microorganism in it and are reached the purpose of purifying waste water, microorganism in the microbial film under the condition of aerobic with a part of organism in the sewage for the synthesis of new cell, another part organism is carried out katabolism in order to obtain the synthetic required energy of cell, and its final product is the stable materials such as carbonic acid gas and water.To Aerobic Pond 8, while reflux pump 14 is the base section sludge reflux with the sewage backflow in the membrane filtration pond 15 for propeller pump 16, thereby improved the Nitrogen/Phosphorus Removal of biological sewage treatment.
Sewage behind the biochemistry in membrane filtration pond 15, membrane module 19 by suction pump 21 with clear water from the 15 suction clean water basin 22 of membrane filtration pond, finish the biological treatment to sewage, the normal pore size of membrane module 19 is 0.1 micron.When membrane module 19 needs to clean, start scavenging pump 24 and 20 pairs of membrane modules of cleaning blower 19 and carry out the air water cleaning, chemicals dosing plant 26 adds cleaning agents, recovers the filter effect of membrane module 19.
As mentioned above, then can well realize the utility model.

Claims (5)

1. a biological sewage treatment membrane filtration system is characterized in that: comprise grille well (2), equalizing tank (4), anoxic pond (7), Aerobic Pond (8), membrane filtration pond (15) and the clean water basin (22) connected successively; Be provided with membrane module (19) in the described membrane filtration pond (15), the upper-part centralized water pipe of membrane module (19) is connected with suction pump (21) by pipeline, and the bottom of membrane module (19) is connected with cleaning blower (20) by pipeline; The bottom in described membrane filtration pond (15) is provided with aeration plate (17), and aeration plate (17) is connected with aeration blower (18) by pipeline; Partition wall bottom between described Aerobic Pond (8) and membrane filtration pond (15) is provided with propeller pump (16).
2. a kind of biological sewage treatment membrane filtration system according to claim 1, it is characterized in that: be provided with elastic biological filler (11) in the described anoxic pond (7), the bottom of anoxic pond (7) is provided with water distributor (10), and water distributor (10) is connected by the lift pump (5) of pipeline with equalizing tank (4) bottom.
3. a kind of biological sewage treatment membrane filtration system according to claim 1, it is characterized in that: be provided with combination biologic packing material (12) in the described Aerobic Pond (8), the bottom of Aerobic Pond (8) is provided with aeration tube (13), and aeration tube (13) is connected with aeration blower (18) by pipeline.
4. a kind of biological sewage treatment membrane filtration system according to claim 1 is characterized in that: be provided with dissolved oxygen instrument (9) in the described Aerobic Pond (8).
5. a kind of biological sewage treatment membrane filtration system according to claim 1, it is characterized in that: described clean water basin (22) inner bottom part is provided with scavenging pump (24), and scavenging pump (24) is connected with the top of membrane module (19) by wash tube (25).
CN2013202674724U 2013-05-16 2013-05-16 Sewage biological treatment membrane filtration system Expired - Fee Related CN203238141U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964632A (en) * 2014-03-28 2014-08-06 宁波埃克钛能源科技有限公司 Integrated sewage treatment device
CN104211207A (en) * 2014-08-18 2014-12-17 山东每美食品有限公司 Cyclic utilization apparatus for fermentation sewage
CN105036472A (en) * 2015-07-30 2015-11-11 巨化集团技术中心 Mixed chemical industrial wastewater enhanced biochemical treatment device and method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103964632A (en) * 2014-03-28 2014-08-06 宁波埃克钛能源科技有限公司 Integrated sewage treatment device
CN103964632B (en) * 2014-03-28 2016-02-10 浙江埃克钛环境科技有限公司 Sewage integrated treatment device
CN104211207A (en) * 2014-08-18 2014-12-17 山东每美食品有限公司 Cyclic utilization apparatus for fermentation sewage
CN104211207B (en) * 2014-08-18 2016-01-20 山东每美生物科技有限公司 A kind of fermentation sewage recycling device
CN105036472A (en) * 2015-07-30 2015-11-11 巨化集团技术中心 Mixed chemical industrial wastewater enhanced biochemical treatment device and method thereof

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131016

Termination date: 20140516