CN203639240U - Small town domestic sewage treatment system using composite biological constructed wetland - Google Patents

Small town domestic sewage treatment system using composite biological constructed wetland Download PDF

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Publication number
CN203639240U
CN203639240U CN201320482955.6U CN201320482955U CN203639240U CN 203639240 U CN203639240 U CN 203639240U CN 201320482955 U CN201320482955 U CN 201320482955U CN 203639240 U CN203639240 U CN 203639240U
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CN
China
Prior art keywords
constructed wetland
reactor
artificial swamp
anaerobic
pipe
Prior art date
Application number
CN201320482955.6U
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Chinese (zh)
Inventor
郭守令
苏朋
尹仲秋
苏迷红
侯素萍
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河南省德容环境工程有限公司
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Priority to CN201320482955.6U priority Critical patent/CN203639240U/en
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Publication of CN203639240U publication Critical patent/CN203639240U/en

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    • Y02W10/12

Abstract

The utility model discloses a small town domestic sewage treatment system using a composite biological constructed wetland. The system comprises a pretreatment facility and a constructed wetland, wherein an anaerobic reactor and an intermediate treatment facility are arranged in the front of the constructed wetland; a backwashing system is arranged in the constructed wetland; the backwashing system consists of horizontal pipes which are paved in parallel at the bottom of sandstones and vertical pipes which are perpendicular to the horizontal pipes and are communicated with the horizontal pipes; a plug is arranged at the top end of each vertical pipe. According to the small town domestic sewage treatment system disclosed by the utility model, the anaerobic reactor is arranged at the front section of the constructed wetland, and a spherical light-weight porous filler is filled in the anaerobic reactor; under the effect of anaerobic ammonium oxidation bacteria, nitrate nitrogen and ammonia nitrogen in water can be removed when sewage flows through the spherical light porous filler. The effluent of an anaerobic section enters a subsurface-flow section of the constructed wetland through drop-aeration, so that COD (chemical oxygen demand) and ammonia nitrogen are further removed, and the effluent can be discharged up to standards. A gas-water combined backwashing facility is arranged at the bottom of the constructed wetland, so that the problem of blockage of the constructed wetland is effectively solved. The backwashing water flows back to the bottom of the anaerobic section so as to reduce the production of sludge.

Description

Compound bio artificial swamp small town sewage treatment system
Technical field
The utility model belongs to sanitary sewage disposal technical field, is specifically related to a kind of compound bio artificial swamp small town sewage treatment system.
Background technology
The China's Small Towns sewage disposal ubiquity water yield, water quality are with seasonal variation and change round the clock greatly the problems such as maintenance management technician and operational management experience shortage.Traditional waste water treatment process is for samll cities and towns, and technical requirements is high, complicated operation, incompatible with its level of economic development and level of management.Compared with the sewage disposal technology of artificial swamp and standard machinery, there is obvious advantage at aspects such as running cost, operational management and landscape effects, but also have following shortcoming: 1) generally as second-stage treatment or advanced treatment, system water inlet needs pre-treatment; 2) floor space is large; 3) heavy-duty service is easily stopped up and is hardened; 4) affected greatly by seasonal climate.
Utility model content
The purpose of this utility model is to solve the above-mentioned technical problem existing in prior art, and a kind of compound bio artificial swamp small town sewage treatment system is provided.
For achieving the above object, the technical solution adopted in the utility model is as follows:
Compound bio artificial swamp small town sewage treatment system of the present utility model, this system comprises pre-treatment facility and artificial swamp, is provided with anaerobic reactor and intermediate treatment facility before artificial swamp.
The utility model is preferably provided with back-purge system in artificial swamp, described back-purge system by parallel laid the level pipe of sandstone bottom and perpendicular to level pipe and and the vertical pipe that is connected of level pipe form, vertical pipe top is provided with plug.
A kind of structure formation of described anaerobic reactor is: comprise reactor shell, reactor shell is provided with water-in and water outlet, between reactor shell, be provided with several dividing plates, between described dividing plate and dividing plate, between dividing plate and the two side of housing, form several baffling pools, in each baffling pool, be filled with Ball-type packing, a traverse baffle has all been installed in each baffling pool, between at the bottom of the wall of traverse baffle and housing, be provided with baffling passage, the cap between adjacent baffle is provided with production well.
The another kind of structure formation of described anaerobic reactor is: comprise reactor tank body, the roof of described reactor tank body is provided with vapor pipe, the top of reactor tank body is provided with triphase separator, triphase separator top is provided with rising pipe, triphase separator bottom is provided with Ball-type packing, Ball-type packing center is provided with blow-down pipe, and reactor tank body middle part is provided with water inlet pipe, and bottom is provided with manhole.
Anaerobic reactor in the utility model is not limited to above-mentioned two kinds of structures, can adopt according to actual needs the anaerobic reactor of various structures of the prior art.
The utility model arranges anaerobic reactor at artificial swamp leading portion, the many infillings of filling spherical light in anaerobic reactor, and effluent stream, in the time of the many infillings of the many lightweights of ball-type, under anaerobic ammonia oxidizing bacteria effect, is removed nitric nitrogen and ammonia nitrogen in water.The water outlet of anaerobism section enters artificial swamp undercurrent section by drop oxygenation, further removes COD, ammonia nitrogen, water outlet qualified discharge.Artificial swamp bottom arranges air water and combines recoil measure, effectively solves artificial swamp blockage problem.Back-flushing is back to anaerobism section bottom, has reduced the generation of mud.
The artificial swamp leading portion degree of depth is increased, anaerobism section is set; Artificial swamp increases air-water backwashing measure, and automatic desilting avoids artificial swamp to stop up and replacement; Not only ammonia nitrogen removal effect increases, and total nitrogen is also effectively removed; Ammonia nitrogen is reduced to 2mg/L clearance more than 94.28% by 35mg/L, and COD drops to 35mg/L by 260mg/L, and clearance reaches 86.53%.
Drowned flow artificial wet land is mainly removed water pollutant by effects such as microbiological deterioration, plant absorption, filtration, precipitation, absorption.Conventional plant: calamus, Pu La, wild rice stem, reed etc.
The design is used in anaerobic treatment in the low pollution concentration of processing samll cities and towns waste water well, and utilizes the many infillings of spherical light, creates an environment, and the processing to nitrogen has also been taken into account.
Increase back-purge system, need not change filler, because Traditional Man wetland needs 2 ~ 3 years renovation fillers.And bottom is provided with ventilation opening, guarantee that artificial swamp dissolved oxygen amount is everywhere even, there will not be local anoxic, cause anaerobic reaction, avoid traditional artificial swamp long-play can produce the disastrous effect of foul smell.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of a kind of anaerobic reactor in the utility model.
Fig. 3 is the pipeline of the back-purge system schematic diagram of arranging in the utility model.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the structural representation of another kind of anaerobic reactor in the utility model.
Embodiment
Compound bio artificial swamp small town sewage treatment system of the present utility model, this system comprises pre-treatment facility 1 and artificial swamp 4, is provided with anaerobic reactor 2 and intermediate treatment facility 3 before artificial swamp 4.
Artificial swamp is horizontal flow underflow type artificial wet land.Its filler material, packing material size and packed height can need to design according to practical situation.In artificial swamp, be provided with back-purge system, described back-purge system by parallel laid the level pipe 4-1 of sandstone bottom and perpendicular to level pipe and and the vertical pipe 4-2 that is connected of level pipe form, vertical pipe top is provided with plug 4-3, plug is pulled out, both water service hose can be inserted, steam hose can be inserted again.Can realize thus air-water backwashing.
A kind of structure formation of the anaerobic reactor in the present embodiment is: comprise reactor shell 2-4, reactor shell 2-4 is provided with water-in and water outlet, between reactor shell, be provided with several dividing plates 2-2, between described dividing plate and dividing plate, between dividing plate and the two side of housing, several baffling pools are formed, in each baffling pool, be filled with Ball-type packing 2-1, a traverse baffle 2-3 is all installed in each baffling pool, between at the bottom of the wall of traverse baffle and housing, be provided with baffling passage, the cap between adjacent baffle is provided with production well.
The another kind of structure formation of the anaerobic reactor in the present embodiment is: described anaerobic reactor comprises reactor tank body, the roof of described reactor tank body is provided with vapor pipe 201, the top of reactor tank body is provided with triphase separator 205, triphase separator top is provided with rising pipe 202, triphase separator bottom is provided with Ball-type packing 206, Ball-type packing center is provided with blow-down pipe 207, and reactor tank body middle part is provided with water inlet pipe 203, and bottom is provided with manhole 204.
Treatment facility described in the present embodiment is grid valve well, and concrete structure can adopt grille well of the prior art, and described intermediate treatment facility is settling tank.
The utility model arranges anaerobic reaction district at artificial swamp leading portion, the many infillings of filling spherical light in anaerobic reaction district, and effluent stream, in the time of the many infillings of the many lightweights of ball-type, under anaerobic ammonia oxidizing bacteria effect, is removed nitric nitrogen and ammonia nitrogen in water.The water outlet of anaerobism section enters artificial swamp undercurrent section by drop oxygenation, further removes COD, ammonia nitrogen, water outlet qualified discharge.Artificial swamp bottom arranges air water and combines recoil measure, effectively solves artificial swamp blockage problem.Back-flushing is back to anaerobism section bottom, has reduced the generation of mud.

Claims (3)

1. a compound bio artificial swamp small town sewage treatment system, is characterized in that: this system comprises pre-treatment facility and artificial swamp, is provided with anaerobic reactor and intermediate treatment facility before artificial swamp;
In artificial swamp, be provided with back-purge system, described back-purge system by parallel laid the level pipe of sandstone bottom and perpendicular to level pipe and and the vertical pipe that is connected of level pipe form, vertical pipe top is provided with plug.
2. compound bio artificial swamp small town sewage treatment system according to claim 1, it is characterized in that: described anaerobic reactor comprises reactor shell, reactor shell is provided with water-in and water outlet, between reactor shell, be provided with several dividing plates, between described dividing plate and dividing plate, between dividing plate and the two side of housing, several baffling pools are formed, in each baffling pool, be filled with Ball-type packing, a traverse baffle is all installed in each baffling pool, between at the bottom of the wall of traverse baffle and housing, be provided with baffling passage, cap between adjacent baffle is provided with production well.
3. compound bio artificial swamp small town sewage treatment system according to claim 1, it is characterized in that: described anaerobic reactor comprises reactor tank body, the roof of described reactor tank body is provided with vapor pipe, the top of reactor tank body is provided with triphase separator, triphase separator top is provided with rising pipe, and triphase separator bottom is provided with Ball-type packing, and Ball-type packing center is provided with blow-down pipe, reactor tank body middle part is provided with water inlet pipe, and bottom is provided with manhole.
CN201320482955.6U 2013-08-08 2013-08-08 Small town domestic sewage treatment system using composite biological constructed wetland CN203639240U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310708A (en) * 2014-10-22 2015-01-28 河南恒安环保科技有限公司 Application method of drop aeration-high depth composite undercurrent constructed wetland technology in rural domestic sewage treatment
CN106830545A (en) * 2017-03-02 2017-06-13 四川理工学院 A kind of combination type wetland drop water aeration sewage disposal system and method
CN107540094A (en) * 2017-10-26 2018-01-05 广西师范大学 Artificial marsh sewage treatment system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310708A (en) * 2014-10-22 2015-01-28 河南恒安环保科技有限公司 Application method of drop aeration-high depth composite undercurrent constructed wetland technology in rural domestic sewage treatment
CN104310708B (en) * 2014-10-22 2015-11-11 河南恒安环保科技有限公司 The application method of drop oxygenation-high depth composite under-current artificial wetland technology in rural domestic sewage treatment
CN106830545A (en) * 2017-03-02 2017-06-13 四川理工学院 A kind of combination type wetland drop water aeration sewage disposal system and method
CN107540094A (en) * 2017-10-26 2018-01-05 广西师范大学 Artificial marsh sewage treatment system
CN107540094B (en) * 2017-10-26 2020-09-29 广西师范大学 Constructed wetland sewage treatment system

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