CN1603255A - Trench type sewage ecological engineering processing and reclamation technique - Google Patents

Trench type sewage ecological engineering processing and reclamation technique Download PDF

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Publication number
CN1603255A
CN1603255A CNA2004100401624A CN200410040162A CN1603255A CN 1603255 A CN1603255 A CN 1603255A CN A2004100401624 A CNA2004100401624 A CN A2004100401624A CN 200410040162 A CN200410040162 A CN 200410040162A CN 1603255 A CN1603255 A CN 1603255A
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CN
China
Prior art keywords
water
bed
packing layer
processed water
sewage
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Pending
Application number
CNA2004100401624A
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Chinese (zh)
Inventor
姜平
彭润芝
董泽琴
杨星宇
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Guizhou Province Environment Science Research & Design Institute
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Guizhou Province Environment Science Research & Design Institute
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Publication date
Application filed by Guizhou Province Environment Science Research & Design Institute filed Critical Guizhou Province Environment Science Research & Design Institute
Priority to CNA2004100401624A priority Critical patent/CN1603255A/en
Publication of CN1603255A publication Critical patent/CN1603255A/en
Pending legal-status Critical Current

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    • Y02W10/12

Abstract

The invention relates to a process and recycling technology for channel type sewage biology project. Its feature is that: first, separating the pretreated sewage into two parts according to a certain distribution ratio, one part is sent into first purifying bed to gain raw processed water after percolating through filler layer; second, the raw processed water influx with the other part of water to send into denitrification bed to control part of water to gain original processed water after taking circular and denitrifying denitrification under oxygen deficient condition; the original processed water is sent to the second purifying bed to gain anew processed water after percolating through filler layer; finally, the anew processed water is sent to undercurrent detritus bed to gain qualified processed water after percolating through filler layer. The output water after processing meets to the request of <living mixed water utilization quality standard>. And it is fit for separated small towns, residential quarter, villa zone and travel sites, as well as controlling eutrophication of water body.

Description

Trench formula sewerage ecological engineering is handled and reuse technology
Technical field
The present invention relates to a kind of sewage water treatment method.
Background technology
At present, for the processing that water pollutes, generally be to finish in cities and towns by building B-grade sewage treatment plant.But the output investment ratio of building B-grade sewage treatment plant is bigger, and working cost is also than higher.Area, particularly Xi Bu many areas for some Economic developments relatively lag behind solve the sanitary sewage problem by building B-grade sewage treatment plant, and present difficulty is still very big.In addition, for the sewage disposal of some samll cities and towns of fragmentary distribution, residential quarters, villa district, tourist attractions, also can not finish at present by setting up B-grade sewage treatment plant.Besides, present B-grade sewage treatment plant is all undesirable to the removal effect of nitrogen, phosphorus, still has a large amount of nitrogen, phosphorus to enter receiving water body with water outlet, makes the receiving water body eutrophication.
Summary of the invention
The purpose of this invention is to provide a kind of trench formula sewerage ecological engineering handles and reuse technology, it is to make pretreated sewage by being preset in the trench formula Sewage treatment systems below the face of land, treated system adsorbs, after the effects such as filtration, microbiological deterioration, denitrogenation, dephosphorization, makes water outlet be better than " integrated wastewater discharge standard " one-level (GB8978-1996) sewage.This technology is simple, cost is low, non-secondary pollution.
The present invention realizes like this.Trench formula sewerage ecological engineering is handled and reuse technology, it is characterized in that: carry out as follows;
A, will press A/B=6 through pretreated sewage: 5-7: 4 partition ratio is assigned as A, B two portions;
B, the A portion water is sent into the water distributor of first clean-up bed, after the packing layer diafiltration of its below, obtain bulk processing water by the effusive sewage of water distributor; The thickness of packing layer is that 0.4-0.7 rice, infiltration rate are that 5-20 centimetre/hour, organic content are that 2-10%, cation exchange capacity are 10-40mmol/100g;
C, the bulk processing water that B portion water and step b are obtained are sent into the denitrogenation bed after compiling, and control section water circulates under anoxic condition, and recycle ratio is 10-30%, obtains treating water just through denitrification denitrogenation;
Send into the water distributor of second clean-up bed after d, the first treating water that step c is obtained compile, after the packing layer diafiltration of its below, obtain treating water again by the effusive treating water just of water distributor; The thickness of packing layer is that 0.4-0.7 rice, infiltration rate are that 5-20 centimetre/hour, organic content are that 2-10%, cation exchange capacity are 10-40mmol/100g;
E, general treating water again send into undercurrent gravel bed, obtain qualified processed water after the packing layer diafiltration; Packing layer thickness is that 0.4-0.7 rice, infiltration rate are 20-35 centimetre/hour, filler to the adsorptive power of phosphorus greater than 1400 μ g/g.
On trench formula sewerage ecological engineering handle with reuse technology in, the described packing layer of step b and steps d is made up of yellow soil, limestone soil, surface cultivation soil, rubble, sandstone and cinder better, unit weight is 0.8-1.2 ton/cubic meter, and porosity is 40-68%.
In aforesaid trench formula sewerage ecological engineering processing and the reuse technology, the described packing layer of step e is made up of Wingdale, cinder and sand.
In aforesaid trench formula sewerage ecological engineering processing and the reuse technology, the casing that the described denitrogenation bed of step c is a sealing, intermediary dividing plate (1) is isolated into No. 1 pond and No. 2 ponds to casing, and the top of dividing plate (1) is provided with backwater hole (2); Be respectively equipped with the flow deflector (3,4,5,6) that is crisscross arranged up and down in No. 1 pond and No. 2 ponds.
Compared with prior art, the present invention makes pretreated sewage by being preset in the trench formula Sewage treatment systems below the face of land, treated system adsorbs, after the effects such as filtration, microbiological deterioration, denitrogenation, dephosphorization, makes water outlet reach miscellaneous domestic water quality standard sewage.The present invention can remove pollutants in sewage and bacterium efficiently, to the BOD of sanitary sewage 5Clearance reaches more than 94%, the COD clearance reaches more than 88%, NH 3-N clearance reaches more than 88%, the TP clearance reaches more than 96%, and the total plate count purification rate is greater than 99%.Water outlet after the processing can not only be satisfied " integrated wastewater discharge standard " one-level water outlet requirement (GB8978-1996), and can satisfy " miscellaneous domestic water quality standard " requirement (CJ25.1-89), can fully recovering.The present invention organism in effectively disposing of sewage and nitrogen, the phosphorus, also by effects such as physical and chemical adsorption, precipitations, has fixed a large amount of necessary for plant growth trace elements in the process of disposing of sewage, can promote that the plant growth of planting on the face of land is good; And the organism in the sewage can assimilate by soil under the effect of soil microorganisms and root system of plant, makes soil organic matter content increase, and the soil fertility situation is improved.That the present invention invests is little, working cost is low, be easy to construction and management maintenance, long service life, and a trench Sewage treatment systems can be used more than 20 years.The present invention is applicable to town domestic sewage and does not contain the processing of the organic industrial sewage of heavy metal and toxic substance.The present invention is particularly suitable for carrying out sewage disposal in zones such as some samll cities and towns of area that Economic development relatively lags behind and fragmentary distribution, residential quarters, villa district, tourist attractions, also being fit to the body eutrophication control to waters such as lake, reservoirs, is that B-grade sewage treatment plant is very well replenished.
Description of drawings
Accompanying drawing 1 is a process flow sheet of the present invention;
Accompanying drawing 2 is structural representations of nitrogenize bed;
Accompanying drawing 3 is A-A sectional views of accompanying drawing 2;
Accompanying drawing 4 is B-B sectional views of accompanying drawing 2;
Accompanying drawing 5 is structural representations of clean-up bed;
Accompanying drawing 6 is A-A sectional views of accompanying drawing 5.
Being labeled as in the accompanying drawing: 1-dividing plate, 2-backwater hole, 3-flow deflector, 4-flow deflector, 5-flow deflector, 6-flow deflector, 7-check valve, 8-water distributor, 9-packing layer, 10-face of land backfill soil, the permeable lapping of 11-, 12-water shoot, the permeable lapping of 13-.
Embodiment
Embodiment.Trench formula sewerage ecological engineering is handled and reuse technology, carries out as follows, and a day processing sanitary sewage ability is 60 cubic metres:
A, will press A/B=5 through pretreated sewage: 3 partition ratio is assigned as A, B two portions; The pretreated sewage of process is meant has removed floating matter and sedimentary sewage.
B, the A portion water is sent into the water distributor of first clean-up bed, after the packing layer diafiltration of its below, obtain bulk processing water by the effusive sewage of water distributor; The thickness of packing layer is that 0.6 meter, infiltration rate are that 10-15 centimetre/hour, organic content are that 6-8%, cation exchange capacity are 20-30mmol/100g; Packing layer is made up of yellow soil, limestone soil, surface cultivation soil, rubble, sandstone and cinder, and unit weight is 0.9-1.1 ton/cubic meter, and porosity is 50-60%.
C, the bulk processing water that B portion water and step b are obtained are sent into the denitrogenation bed after compiling, and control section water circulates under anoxic condition, and recycle ratio is 20%, promptly get 20% water and circulate; By the denitrification of denitrogenation bed, the denitrification effect highly significant obtains treating water just.Shown in accompanying drawing 2,3,4, the denitrogenation bed is the casing (accompanying drawing 2 is the vertical views after casing goes to cover) of a sealing, and intermediary dividing plate 1 is isolated into No. 1 pond and No. 2 ponds to casing, and the top of dividing plate 1 is provided with backwater hole 2; Be respectively equipped with the flow deflector 3,4,5,6 that is crisscross arranged up and down in No. 1 pond and No. 2 ponds.
Send into the water distributor of second clean-up bed after d, the first treating water that step c is obtained compile, after the packing layer diafiltration of its below, obtain treating water again by the effusive treating water just of water distributor; The thickness of packing layer is that 0.5 meter, infiltration rate are that 10-15 centimetre/hour, organic content are that 6-8%, cation exchange capacity are 20-30mmol/100g; Packing layer is made up of yellow soil, limestone soil, surface cultivation soil, rubble, sandstone and cinder, and unit weight is 0.9-1 ton/cubic meter, and porosity is 45-55%.
E, will be again send into the water distributor of undercurrent gravel bed after treating water compiles, after the packing layer diafiltration of its below, obtain qualified processed water by the effusive treating water again of water distributor; Packing layer thickness is that 0.5 meter, infiltration rate are 25-30 centimetre/hour; Packing layer is made up of sandstone, Wingdale and cinder, filler to the adsorptive power of phosphorus greater than 1400 μ g/g.
The structure of first clean-up bed, second clean-up bed and undercurrent gravel bed is identical, and shown in accompanying drawing 5,6, different is the formation of packing layer.Adding permeable lapping is for preventing water distributing pore, receiving the water hole by soil, filler obstruction.
Sewage treatment capacity of the present invention can realize by increasing trench quantity.After trench construction of the present invention is built up, original ground surface soil backfill can be planted plant then, be destitute of smell and overflow.Water outlet can be used for farmland, greening irrigation and carwash, flushes the toilet etc.Though the present invention's construction area area is bigger, in the application in zones such as area that Economic development relatively lags behind and fragmentary some samll cities and towns, residential quarters, villa district and the tourist attractions that distribute, lake, reservoir, there is no too big problem.Therefore, use the present invention, extraordinary environment protecting and significant social, economic benefit are arranged in these areas or zone.

Claims (4)

1, trench formula sewerage ecological engineering is handled and reuse technology, it is characterized in that: carry out as follows;
A, will press A/B=6 through pretreated sewage: 5-7: 4 partition ratio is assigned as A, B two portions;
B, the A portion water is sent into the water distributor of first clean-up bed, after the packing layer diafiltration of its below, obtain bulk processing water by the effusive sewage of water distributor; The thickness of packing layer is that 0.4-0.7 rice, infiltration rate are that 5-20 centimetre/hour, organic content are that 2-10%, cation exchange capacity are 10-40mmol/100g;
C, the bulk processing water that B portion water and step b are obtained are sent into the denitrogenation bed after compiling, and control section water circulates under anoxic condition, and recycle ratio is 10-30%, obtains treating water just through denitrification denitrogenation;
Send into the water distributor of second clean-up bed after d, the first treating water that step c is obtained compile, after the packing layer diafiltration of its below, obtain treating water again by the effusive treating water just of water distributor; The thickness of packing layer is that 0.4-0.7 rice, infiltration rate are that 5-20 centimetre/hour, organic content are that 2-10%, cation exchange capacity are 10-40mmol/100g;
E, general treating water again send into undercurrent gravel bed, obtain qualified processed water after the packing layer diafiltration; Packing layer thickness is that 0.4-0.7 rice, infiltration rate are 20-35 centimetre/hour, filler to the adsorptive power of phosphorus greater than 1400 μ g/g.
2, trench formula sewerage ecological engineering according to claim 1 is handled and reuse technology, it is characterized in that: the described packing layer of step b and steps d is made up of yellow soil, limestone soil, surface cultivation soil, rubble, sandstone and cinder, unit weight is 0.8-1.2 ton/cubic meter, and porosity is 40-68%.
3, trench formula sewerage ecological engineering according to claim 2 is handled and reuse technology, and it is characterized in that: the described packing layer of step e is made up of Wingdale, cinder and sand.
4, handle and reuse technology according to the described trench formula of arbitrary claim sewerage ecological engineering in the claim 1 to 3, it is characterized in that: the casing that the described denitrogenation bed of step c is a sealing, intermediary dividing plate (1) is isolated into No. 1 pond and No. 2 ponds to casing, and the top of dividing plate (1) is provided with backwater hole (2); Be respectively equipped with the flow deflector (3,4,5,6) that is crisscross arranged up and down in No. 1 pond and No. 2 ponds.
CNA2004100401624A 2004-07-08 2004-07-08 Trench type sewage ecological engineering processing and reclamation technique Pending CN1603255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2004100401624A CN1603255A (en) 2004-07-08 2004-07-08 Trench type sewage ecological engineering processing and reclamation technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2004100401624A CN1603255A (en) 2004-07-08 2004-07-08 Trench type sewage ecological engineering processing and reclamation technique

Publications (1)

Publication Number Publication Date
CN1603255A true CN1603255A (en) 2005-04-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1319881C (en) * 2005-10-24 2007-06-06 周有 Mineralization ecological systen of sludge biological treatment
CN100465104C (en) * 2005-08-15 2009-03-04 吕迎智 Method for reusing synthesized middle water
CN101691270B (en) * 2009-11-03 2012-05-30 何航 Assembled packing artificial vertical subsurface flow wetland unit, application thereof and sewage treatment process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100465104C (en) * 2005-08-15 2009-03-04 吕迎智 Method for reusing synthesized middle water
CN1319881C (en) * 2005-10-24 2007-06-06 周有 Mineralization ecological systen of sludge biological treatment
CN101691270B (en) * 2009-11-03 2012-05-30 何航 Assembled packing artificial vertical subsurface flow wetland unit, application thereof and sewage treatment process

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