CN102040316A - Method for purifying ecological compound sludge water body - Google Patents

Method for purifying ecological compound sludge water body Download PDF

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Publication number
CN102040316A
CN102040316A CN 201010534180 CN201010534180A CN102040316A CN 102040316 A CN102040316 A CN 102040316A CN 201010534180 CN201010534180 CN 201010534180 CN 201010534180 A CN201010534180 A CN 201010534180A CN 102040316 A CN102040316 A CN 102040316A
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sludge
ecological compound
filler
zone
ecological
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CN102040316B (en
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白少元
王敦球
张华�
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Guangxi Hengsheng Water Environment Control Co., Ltd.
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Guilin University of Technology
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Abstract

The invention discloses a method for purifying ecological compound sludge water body. An anaerobic pond, an intermediate settling pond, an ecological compound sludge system and a sludge reflowing system are sequentially arranged; sewage enters the anaerobic pond to remove organic matters and release phosphor and then enters the intermediate settling pond to generate solid-liquid separation; the separated supernate flows into from the upper part of the main ecological compound sludge reflowing system, sequentially flows through an ecological area, a nitration area, an activated sludge phosphor-removing area and a water collecting area and is then drained out of the main ecological compound sludge reflowing system; the activated sludge separated by the intermediate settling pond directly enters the activated sludge phosphor-removing area of the main ecological compound sludge system and is then subjected to the solid-liquid separation through the water collecting area; and the supernate is drained out of the main ecological compound sludge system. The sludge reflowing system is arranged between the activated sludge phosphor-removing area at the bottom of the ecological compound sludge system and the anaerobic pond and is convenient for the anaerobic phosphor-releasing function of the sludge. The invention has the advantages of stability for operation, low investment operation expanse, convenience for management, high-efficiency removing effect on pollutants and the like.

Description

Ecological compound mud water body purification method
Technical field
The present invention relates to a kind of method of administering sewage, the compound mud water body purification method of particularly a kind of ecology.
Background technology
Because country sewage and municipal wastewater water quality difference are bigger, domestic sewage in rural areas by using is mainly toilet-flushing sewage, kitchen sewage, the sewage etc. of having a bath, do washing, organic pollutant content in the sewage is lower than municipal effluent, and principal pollutant are COD, nitrogen and phosphorus, and water quality is more stable relatively.So processing can not be indiscriminately imitated the municipal wastewater treatment technology simply and is used for the rural area to country sewage.The selection of country sewage treatment process at present is generally in conjunction with the population size in rural area, generally adopt Ecological Disposal technology such as artificial swamp, oxidation pond, the plant pool in backward in economy, the less area of population, the sewage that septic tank is discharged is further handled, the capacity that makes full use of environment reaches the purpose of disposing of sewage, and then adopts SBR, A/O, A2/O technology for the bigger rural area of the density of population.But tradition build to concentrate the pattern of Sewage Plant and sewage disposal technology to have that floor space is wide, the pipe network investment is huge, working cost is expensive, sludge yield is high and problem such as subsequent disposal, the vast rural area that economic level is fallen behind relatively disperses blowdown point and inapplicable, is badly in need of the new core technology of exploitation.
Summary of the invention
Purpose of the present invention is exactly at the problems referred to above, ecological method, biomembrance process and activated sludge process three are combined closely in a reactor, a kind of low, saving energy of sludge yield that has is provided, the ecological compound mud water body purification method that has the denitrogenation dephosphorizing effect simultaneously, this method lacks the vast Rural areas sanitary sewage disposal of urban operating mechanism except that can be used for, and also can be used for the processing of trade effluents such as food-processing industry waste water, slaughterhouse wastewater.
The technical problem to be solved in the present invention provides a kind of ecological compound mud water purifying device of removing COD, nitrogen, phosphorus function that has, by effects such as physics, chemistry, plant and microorganisms water body is purified fully, overcome because of problems such as the traditional cities sewage disposal technology is used for that the sludge yield that the rural area exists is excessive, the large-scale aeration of denitrogenation dephosphorizing process and nitrification liquid backflow facility are brought high capital construction and running costs.
Technical scheme of the present invention is:
1, sets gradually anaerobic pond, intermediate sedimentation pond, ecological compound sludge system, mud return-flow system; Wherein anaerobic pond is used for removing the release of organism and returned sluge phosphorus, and the intermediate sedimentation pond is used for anaerobic pond water outlet solid-liquid separation;
2, dividing plate is set and is divided into main body reaction zone and catchment area about with system in the compound sludge system of ecology, bottom, two zones links to each other;
3, ecological compound sludge system main body reaction zone top setting is by the ecotope of framework and screen cloth enclosure, filling preferable particle size in the screen cloth is volcanics and/or biological ceramic particle and/or zeolite granular and/or the quartz sand particle filler of 1-20mm, plantation humidogene emergent on it.Root system of plant can be covered with whole particle filler zone and be distributed in the nitrated zone through screen cloth in process of growth, root system excretory organism and dissolved oxygen provide part carbon source and dissolved oxygen for nitration reaction, solved because of the low inhibition problem of domestic sewage in rural areas by using carbon source concentration nitrifying process, the while root system of plant is secreted oxygen and has been reduced the required artificial aeration's amount of nitrifying process, and then has reduced energy consumption;
4, ecological compound sludge system main body reaction zone middle part is provided with the nitrification zone of being made up of sparse filler that hangs and aerating system, and sparse filler provides the biofilm of nitrifier to grow for fibrous bundle filler and/or combined stuffing and/or elastic filler; The screen bottom of ecotope, the steel wire relative fixed that lower end and framework bottom are provided with are fixed in sparse filler upper end; Ecological compound sludge system is provided with redox potential on-line monitoring instrument, and link to each other with aerating system, cross when redox potential in the zone and to open aerating system when low, aerating system is closed automatically when redox potential reaches setting and requires, thereby plays the purpose that cuts down the consumption of energy;
5, ecological compound sludge system main body reaction zone bottom is provided with the activated sludge dephosphorizing district, the nitrate nitrogen that nitrification zone produces enters the dephosphorization district with current the removal that the denitrification phosphorus-collecting effect realizes phosphorus takes place, avoid the backflow of traditional denitrification process process nitrification liquid, and then reduced capital construction and running cost; Denitrification phosphorus-collecting has the dual-purpose advantage of a carbon, realize the removal of phosphorus synchronously in the process of denitrification denitrogenation, overcome in the country sewage carbon source deficiency to the restraining effect of decontamination effect improving, traditional relatively aerobic dephosphorization simultaneously, minimizing produces capital construction and running cost because of aeration, and plays the effect that reduces sludge yield;
6, bottom the ecological compound sludge system mud return-flow system is set, is back to the release that anaerobic pond carries out phosphorus;
7, the pollutent in the water in the ecological compound sludge system process of flowing through by adsorb with the ecotope granular filler, co-precipitation, absorbed by plant, the microorganism that is adhered on the filler and system bottom active sludge metabolism is removed.
The present invention handles trade effluents such as domestic sewage in rural areas by using and food-processing industry, butcheries, can obtain efficient pollutant removal, have simultaneously stable, the investment working cost is low, convenient management, advantage such as both artistic and practical.
Description of drawings
Fig. 1 is the ecological compound mud water body purification method synoptic diagram of the present invention.
Mark among the figure: A. feed-water end; B. water side; 1. anaerobic pond; 2. intermediate sedimentation pond; 3. ecological compound sludge system; 4. ecotope; 5. nitrification zone; 6. activated sludge dephosphorizing district; 7. catchment area; 8. framework; 9. dividing plate; 10. granular filler; 11. screen cloth; 12. steel wire; 13. sparse filler; 14. redox potential on-line monitoring instrument; 15. aerating system; 16. root system of plant; 17. agitator; 18. supernatant liquor water-in; 19. mud inlet; 20. mud return-flow system; 21. humidogene emergent; 22. main body reaction zone.
Embodiment
Embodiment:
As shown in Figure 1, be provided with anaerobic pond 1, intermediate sedimentation pond 2, ecological compound sludge system 3 three parts composition, agitator 17 wherein be set in the anaerobic pond 1 prevent sludge settling.Ecological compound sludge system 3 is the main body of this purifier, is made up of ecotope 4, nitrification zone 5, activated sludge dephosphorizing district 6 and catchment area 7, by dividing plate 9, framework 8 and screen cloth 11 each zone is separated.Wherein ecotope 4 filler particles fillers 10 are planted humidogene emergent 21 on it, and root system of plant 16 is covered with the packing area; Nitrification zone 5 hangs sparse filler 13, and sparse filler 13 upper ends are fixed on screen cloth 11 bottoms, and the lower end is fixed on the framework 8 bottom steel wires 12.Nitrification zone 5 is provided with aerating system 15 and coupled redox potential on-line monitoring system 14, by aerating system 15 to nitrification zone 5 oxygen supplys.
Anaerobic pond is of a size of: length * wide * height=20cm * 10cm * 50cm is provided with adjustable rotating speed agitator 17.Intermediate sedimentation pond 2 cross sections are circular, and diameter is: 15cm highly is 50cm.Ecological compound sludge system 3 is of a size of: length * wide * height=25cm * 20cm * 60cm, its median septum 9 is divided into main body reaction zone 22 and catchment area 74: 1, be that catchment area 7 is of a size of: length * wide * height=5cm * 20cm * 60cm, main body reaction zone 22 is of a size of: length * wide * height=20cm * 20cm * 60cm, it highly is 20cm that bottom, two zones is communicated with.Ecological compound sludge system 3 main body reaction zones 22 are followed successively by ecotope 4, nitrification zone 5 and activated sludge dephosphorizing district 6, three region height from top to bottom and are respectively 15cm, 25cm and 20cm.Wherein volcanics granular filler 10 is filled in ecotope 4, particle diameter is 3-8mm, plantation humidogene emergent (Canna generalis Bailey) 21 on it, planting density be 20~30 strains/square metre, root system of plant can deeply be covered with the whole particle packing area, and can further pass screen cloth 11 and be grown in nitrification zone 5 territories.The sparse filler 13 of nitrification zone 5 suspended fiber bundles, screen cloth 11 bottoms are fixed in the upper end, steel wire 12 relative fixed that lower end and framework 8 bottoms are provided with, the sparse filler 13 monolithic diameters of fibrous bundle are 15cm, the mounting center spacing is 20cm.
Sewage purification process is as follows: sewage at first enters the release that organic matter removal and phosphorus take place anaerobic pond 1, enter intermediate sedimentation pond 2 afterwards solid-liquid separation takes place, separated liquid supernatant is flowed into by the ecological compound sludge system 3 top supernatant liquor water-ins 18 of main body, successively by ecotope 4, nitrification zone 5, activated sludge dephosphorizing district 6 and catchment area 7 back discharge systems; Intermediate sedimentation pond 2 isolated active sludge 19 directly enter the activated sludge dephosphorizing district 6 of the ecological compound sludge system 3 of main body, carry out solid-liquid separation by catchment area 7 again, and supernatant liquor is discharged system.Between ecological compound sludge system activated sludge dephosphorizing district 6,3 bottom and the anaerobic pond 1 mud return-flow system 20 is set and is convenient to the generation that sludge anaerobic is released the phosphorus effect.
Utilize ecological compound sludge system 3 purifying domestic sewages, adopt continuous water intake mode, wherein the hydraulic detention time of anaerobic pond 1, intermediate sedimentation pond 2 and main body reaction zone 22 is respectively 6h, 1.5h and 7h, return sludge ratio 50%, through scheduling to last trimestral startup operation, each pollutent mean concns sees Table 1 in the effluent quality after raw water quality and process native system are handled.
Table 1: Inlet and outlet water water quality table
TP Nitrate nitrogen Ammonia nitrogen COD
Water inlet (mg/L) 11.43 20.16 17.61 107.52
Water outlet (mg/L) 7.39 0.58 5.88 13.44
Clearance (%) 35.35 97.12 60.61 87.50
As shown in table 1, ecological compound mud water body purification method can effectively be removed nitrate nitrogen, ammonia nitrogen and the organism in the water body, and phosphorus is had certain removal effect equally.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs to the protection domain of technical solution of the present invention to any simple modification, equivalent variations and modification that above embodiment did.

Claims (1)

1. compound mud water body purification method of ecology is characterized in that concrete steps are:
One, sets gradually anaerobic pond (1), intermediate sedimentation pond (2), ecological compound sludge system (3), mud return-flow system (20); Wherein anaerobic pond (1) is used for removing the release of organism and returned sluge phosphorus, and intermediate sedimentation pond (2) are used for anaerobic pond (1) water outlet solid-liquid separation;
Two, dividing plate (9) is set and is divided into main body reaction zone (22) and catchment area (7) about with system in the compound sludge system of ecology (3), bottom, two zones links to each other;
Three, ecological compound sludge system (3) main body reaction zone (22) top is provided with the ecotope (4) by framework (8) and screen cloth (11) enclosure, filling preferable particle size in the screen cloth (11) is volcanics and/or biological ceramic particle and/or zeolite granular and/or the quartz sand particle filler (10) of 1-20mm, plantation humidogene emergent (21) on it; Root system of plant (16) can be covered with whole particle filler zone and be distributed in the nitrification zone (5) through screen cloth (11) in process of growth, root system excretory organism and dissolved oxygen provide part carbon source and dissolved oxygen for nitration reaction, the while root system of plant is secreted oxygen and has been reduced the required artificial aeration's amount of nitrifying process, and then has reduced energy consumption;
Four, ecological compound sludge system (3) main body reaction zone (22) middle part is provided with the nitrification zone of being made up of sparse filler (13) that hangs and aerating system (15) (5), and sparse filler (13) provides the biofilm of nitrifier to grow for fibrous bundle filler and/or combined stuffing and/or elastic filler; Screen cloth (11) bottom of ecotope (4), steel wire (12) relative fixed that lower end and framework (8) bottom is provided with are fixed in sparse filler (13) upper end; Ecological compound sludge system (3) is provided with redox potential on-line monitoring instrument (14), and link to each other with aerating system (15), when redox potential in the zone is crossed unlatching aerating system (15) when low, set when requiring aerating system (15) and close automatically when redox potential reaches, thereby play the purpose that cuts down the consumption of energy;
Five, ecological compound sludge system (3) main body reaction zone (22) bottom is provided with activated sludge dephosphorizing district (6), the nitrate nitrogen that nitrification zone (5) produces enters activated sludge dephosphorizing district (6) with current the removal that the denitrification phosphorus-collecting effect realizes phosphorus takes place, and has avoided the backflow of traditional denitrification process process nitrification liquid;
Six, ecological compound sludge system (3) bottom is provided with mud return-flow system (20), is back to anaerobic pond (1) and carries out the release of phosphorus;
Seven, the pollutent in the water in ecological compound sludge system (3) process of flowing through by adsorb with ecotope (4) granular filler (10), co-precipitation, absorbed by plant, the microorganism that is adhered on the filler and system bottom active sludge metabolism is removed.
CN2010105341803A 2010-11-05 2010-11-05 Method for purifying ecological compound sludge water body Active CN102040316B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102701450A (en) * 2012-05-15 2012-10-03 上海师范大学 Method for restoring surface water by utilizing discarded plant leaves
CN103523925A (en) * 2013-11-04 2014-01-22 哈尔滨工业大学深圳研究生院 Plant-activated sludge combined wastewater treatment device free of stink release
CN104230125A (en) * 2014-10-14 2014-12-24 郑州同济环保工程有限公司 Sewage purifying system and sewage treating device
CN104891641A (en) * 2015-06-15 2015-09-09 武汉中科水生环境工程股份有限公司 Vegetation bed aeration tank sewage treatment device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100741019B1 (en) * 2006-06-28 2007-07-27 주식회사 에스디알앤디 Water treatment device and method by using a combination of wetland and contact oxidation filtration facilities
CN201125203Y (en) * 2007-10-25 2008-10-01 张文飞 Water environment biological, ecological high-efficiency restoring system
CN101628774A (en) * 2009-08-06 2010-01-20 北京师范大学 Up-flow filter layer-floating bed water purification device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100741019B1 (en) * 2006-06-28 2007-07-27 주식회사 에스디알앤디 Water treatment device and method by using a combination of wetland and contact oxidation filtration facilities
CN201125203Y (en) * 2007-10-25 2008-10-01 张文飞 Water environment biological, ecological high-efficiency restoring system
CN101628774A (en) * 2009-08-06 2010-01-20 北京师范大学 Up-flow filter layer-floating bed water purification device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102701450A (en) * 2012-05-15 2012-10-03 上海师范大学 Method for restoring surface water by utilizing discarded plant leaves
CN102701450B (en) * 2012-05-15 2014-09-10 上海师范大学 Method for restoring surface water by utilizing discarded plant leaves
CN103523925A (en) * 2013-11-04 2014-01-22 哈尔滨工业大学深圳研究生院 Plant-activated sludge combined wastewater treatment device free of stink release
CN104230125A (en) * 2014-10-14 2014-12-24 郑州同济环保工程有限公司 Sewage purifying system and sewage treating device
CN104891641A (en) * 2015-06-15 2015-09-09 武汉中科水生环境工程股份有限公司 Vegetation bed aeration tank sewage treatment device

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Inventor after: Wang Ronghua

Inventor after: Deng Zhengui

Inventor after: Bai Shaoyuan

Inventor before: Bai Shaoyuan

Inventor before: Wang Dunqiu

Inventor before: Zhang Hua

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Effective date of registration: 20171222

Address after: 541100 the Guangxi Zhuang Autonomous Region Guilin city Lingui District Lingui Town West City Avenue and the Century Avenue intersection flying international T6 building 12 floor 1210, 1212 room

Patentee after: Guangxi Hengsheng Water Environment Control Co., Ltd.

Address before: 541004 Guilin city of the Guangxi Zhuang Autonomous Region Road No. 12 building of Guilin University of Technology

Patentee before: Guilin University of Technology

TR01 Transfer of patent right