CN101693584B - Water recycling device in artificial wetland organic industrial water with high concentration - Google Patents
Water recycling device in artificial wetland organic industrial water with high concentration Download PDFInfo
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- CN101693584B CN101693584B CN2009102363742A CN200910236374A CN101693584B CN 101693584 B CN101693584 B CN 101693584B CN 2009102363742 A CN2009102363742 A CN 2009102363742A CN 200910236374 A CN200910236374 A CN 200910236374A CN 101693584 B CN101693584 B CN 101693584B
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Abstract
A water recycling device in artificial wetland organic industrial water with high concentration comprises a grit settling tank, a grid, a collected water neutralization tank, an immersible stirrer, a first-stage sewage pump, a hydrolysis equalizing tank, a second-stage sewage pump, a UASB reactor, a three-phase separator, a water distributor, an anaerobic filter chamber, anaerobic filler, a blower, aerobic filler, an aerator, a biological contact oxidation tank, a secondary settlement tank, a travelling type sludge scraping machine, a sledge tank, a sledge pump, a sledge condensed tank, an underflow pump, a belt type filter press, electrolytic filler, a sterilizing tank, a chlorine adding pump, a chlorine adding device, a chlorine dioxide generator, a monitor and an artificial wetland. The invention can be widely applied in water recycling systems in different organic waste water with high concentration, and has the characteristics of less investment, stable operation, resource utilization, low operation cost and the like.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to water recycling device in a kind of artificial swamp organic industrial water.
Background technology
China is a country that drought and water shortage is serious.The Freshwater resources total amount is 28000 billion cubic meters, account for 6% of water globe resource, be only second to Brazil, Russia and Canadian, occupy the 4th in the world, but have only 2300 cubic metres per capita, only be world average level 1/4, the U.S. 1/5, rank 121 in the world, be one of 13 countries that water resources is the poorest per capita in the whole world, and water resources is inhomogeneous at regional distributed pole, the water imbalance between supply and demand is very outstanding.Middle water reuse is one of main path of sewage recycling of water resource utilization.The water reuse is at the early-stage in China at present, and treatment technology is backward relatively, and running cost is bigger.Particularly the reclamation rate of the organism water of high density is very low, almost just effluxes after the simple process.
Summary of the invention
The object of the present invention is to provide water recycling device in a kind of artificial wetland organic industrial water with high concentration, after organic industrial water with high concentration was carried out deep purifying, water water quality requirement in reaching carried out reuse simultaneously, has saved water resources greatly.
The said organic industrial water with high concentration of the present invention is meant the Organic pollutants substrate concentration (organic waste water of CODcr＞5000mg/L).
For achieving the above object, water recycling device in the artificial wetland organic industrial water with high concentration provided by the invention mainly comprises:
Settling pit connects grid, and the supernatant liquor of settling pit flows into grid, by grid the organism in the supernatant liquor is filtered; The neutralization tank that catchments, the sewage that the plaid matching grid current is gone into are made potential of hydrogen and are regulated; Catchment in the sewage in the neutralization tank and the back flows into the hydrolyzing regulation pond that is filled with hydrolysis filling (polyethylene software filler), it is the small-particle organism that the larger molecular organics in the sewage is carried out anaerobic digestion; Sewage is made further anaerobic digestion to organism in hydrolyzing regulation pond flow to UASB (reaction of flow lifting type sludge anaerobic) reactor; Sewage behind further anaerobic digestion organism flows into the anaerobic filter that is filled with the anaerobism filler, with further removal organism, then flow to the biological contact oxidation pond that is filled with aerobic filler and aerator, the organism of difficult degradation is removed (aerobic filler of the present invention and anaerobism filler all adopt polyethylene software filler); The sewage of biological contact oxidation pond flows into second pond, and particulate matter is sunken to the second pond bottom and forms mud; Second pond top is provided with mud scraper, collects second pond bottom mud, and is delivered to first sludge sump and carries out preliminary mud-water separation, concentrates to second sludge sump again; Mud after concentrating is squeezed into pressure filter and is carried out mud-water separation; After sewage inflow sterilization pool in the second pond behind the removal mud carries out disinfection, flow into artificial swamp.
In the water recycling device, be provided with diving mixer in the neutralization tank that catchments in the artificial wetland organic industrial water with high concentration of the present invention, and be used for the sump pump of sewage transport to hydrolyzing regulation pond.
In the water recycling device, be provided with triphase separator and water distributor in the UASB reactor in the artificial wetland organic industrial water with high concentration of the present invention; Wherein: three separators are that water, gas, machine solid waste are separated, and water distributor makes the water distribution in three separators even.
In the water recycling device, the aerator of installing in the biological contact oxidation pond is by the pipe connection gas blower in the artificial wetland organic industrial water with high concentration of the present invention.
In the water recycling device, the mud scraper that second pond top is provided with is the running type mud scraper in the artificial wetland organic industrial water with high concentration of the present invention, and the mud of collection is delivered to sludge sump by sludge pipe.
In the artificial wetland organic industrial water with high concentration of the present invention water recycling device wherein, the pressure filter that carries out mud-water separation is a belt filter press.
In the water recycling device, the sterilizing agent in the sterilization pool is to be prepared by chlorine dioxide generator in the artificial wetland organic industrial water with high concentration of the present invention.
Pre-treatment ability of the present invention is strong, and the wetland floor space is little, to the purification efficiency height of pollutent.
But in the organic waste water intermediate water reuse system of the present invention's widespread use and various high densitys, has reduced investment, stable, recycling, characteristics such as working cost is low
Description of drawings
Fig. 1 is a water recycling device synoptic diagram in the artificial swamp organic industrial water of the present invention.
Main mark symbol in the accompanying drawing:
Settling pit 1, grid 2, neutralization tank 3 catchments, diving mixer 4, one-level sump pump 5, hydrolyzing regulation pond 6, B-grade sewage pump 7, UASB reactor 8, triphase separator 9, water distributor 10, anaerobic filter 11, anaerobism filler 12, gas blower 13, aerobic filler 14, aerator 15, biological contact oxidation pond 16, second pond 17, running type mud scraper 18, sludge sump 19, sludge pump 20, sludge thickener 21, underflow pump 22, belt filter press 23, hydrolysis filling 24, sterilization pool 25, throw chlorine pump 26, throw chlorine device 27, chlorine dioxide generator 28, monitor 29, artificial swamp 30.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Water is the organic sewage of high density in the organic industrial water of the present invention, and the coarseparticulate in the sewage is through settling pit 1 post precipitation, and supernatant liquor flows into grid 2, will further filter at this fine grain organism.Then sewage flows into the neutralization tank 3 that catchments, and regulates in the potential of hydrogen of this sewage, for follow-up biochemical reaction provides the basis.Catchment and be provided with diving mixer 4, one-level sump pump 5 in the neutralization tank 3.After sewage neutralizes in the neutralization tank 3 that catchments, flow into hydrolyzing regulation pond 6, it is the small-particle organism that the larger molecular organics in sewage carries out anaerobic digestion, produces part methane simultaneously.Hydrolysis filling 24 is installed in the hydrolyzing regulation pond.Sewage is after hydrolyzing regulation pond flows out, in B-grade sewage pump 7 is promoted to UASB reactor 8.Be provided with triphase separator 9, water distributor 10 in the UASB reactor 8.Wherein three separators 9 mainly are that water, gas, machine solid waste separate.Water distributor 10 guarantees that water distribution is even in three separators 9.In UASB reactor 8, a large amount of organism are discharged in UASB reactor 8 with the methane gas form by anaerobic digestion.Organism through degraded flows into anaerobic filter 11 subsequently, and anaerobism filler 12 (polyethylene software earthfill rockfill concrete riprap RCC) is installed in the anaerobic filter 11.Organism is further removed in anaerobic filter 11, then flow to biological contact oxidation pond 16, and at this, the organism of difficult degradation is removed.Aerobic filler 14 (polyethylene software filler), aerator 15 are installed in the biological contact oxidation pond 16.Aerator is by pipe connection gas blower 13.Sewage flows into second pond 17 and clarifies after handling through biological contact oxidation pond 16.Particulate matter is sunken to second pond 17 bottoms and forms mud.Mud is delivered to sludge sump 19 by sludge pipe after collecting by running type mud scraper 18, and mud is delivered to sludge sump 21 through sludge pump 20 and further concentrates after this carries out preliminary mud-water separation.Mud after concentrating is squeezed into belt filter press 23 through underflow pump 22 and is carried out mud-water separation.Sewage flows into sterilization pool 25 and carries out disinfection after biological contact oxidation pond 16 is handled.Sterilization reagent carries out on-site preparation by chlorine dioxide generator 28.Reagent adds by throwing chlorine pump 26 and throwing chlorine device 27.Monitor 29 main monitorings flow into the water quality situation in the wetland.30 pairs of water quality of artificial swamp are further handled, and the water outlet after the processing can be used as flushing supply, greenery patches irrigation water etc.
The organic concentration of the processing that the present invention is the highest (CODcr) reaches 50000mg/L, and processing rate is up to 99.9%, and effluent quality only is 10mg/L.Wherein the design variable of settling pit 1 is that available depth is 3-5 rice (m), and the residence time is 8-10 hour (h).The design variable of neutralization tank 3 of catchmenting is 2.5-3m, and hydraulic detention time is 9h.Hydrolyzing regulation pond 6 available depths are 5-7m, and the residence time is 20-30h.UASB reactor 8 available depths are 5-8m, and the residence time is 30-50h.Biological contact oxidation pond 16 available depths are 4-5m, and the residence time is 30-40h.The design available depth of anaerobic filter 11 is 5-7m, and the residence time is 20-30h.The available depth of second pond 17 is 2.5-3m, and the residence time is 8-10h.The available depth of sludge thickener 21 is 2.5-3m.The design variable of artificial swamp is for handling 1m
3Sewage need 15m
2, the wetland clear height is 0.3-0.5m.
A specific examples is as follows:
Be designed to the water body of industrial water factory, water inlet organic contamination substrate concentration is 6000mg/L, and the design effluent quality is 20mg/L, and design discharge is 400m
3Each operation stage of/d is respectively organic removal efficient, in and the equalizing tank clearance be 25%, effluent quality is 4500mg/L.The hydrolyzing regulation pond organic removal rate is 30%, and the effluent quality index is 3150mg/L.Anaerobic pond is 80% to organic clearance, and effluent quality is 630mg/L.Contact-oxidation pool is 60% to organic clearance, and effluent index is 50mg/L.Settling tank is 60% to organic clearance, and effluent index is 20mg/L.Artificial swamp is 80% to organic clearance, and effluent index is 4mg/L,
The design variable of settling pit is sedimentation basin available depth 4.0m, underground type Reinforced Concrete Structure, overall dimensions 12000 * 3500 * 4250mm, the about 150m of useful volume
3, about 9h of effective residence time of waterpower.The design variable of water collecting basin and neutralization tank is available depth 2.7m, underground type Reinforced Concrete Structure, overall dimensions 12000 * 9000 * 3000mm, the about 275m of useful volume
3, about 16.5h of effective residence time of waterpower.The design variable of hydrolyzing regulation pond is available depth 6.5m, semi-underground type Reinforced Concrete Structure, overall dimensions 12000 * 5500 * 7000mm, the about 400m of useful volume
3, the about 24h of hydraulic detention time.Activated sludge concentration 5～10g/ liter, volumetric loading 2.5～3.5Kg/m
3D, sludge yield 0.1Kg mud/KgCOD.UASB DESIGN OF REACTOR parameter is available depth 6.7m, ground type Reinforced Concrete Structure, overall dimensions 12000 * 11000 * 7000mm, the about 800m of useful volume
3, the about 48h of hydraulic detention time.Activated sludge concentration 3～5g/ liter, volumetric loading 1.5～2.0Kg/m
3D, sludge yield 0.08Kg mud/KgCOD.The design variable of anaerobic filter is available depth 5.9m, ground type Reinforced Concrete Structure, overall dimensions 12000 * 7500 * 6200mm, the about 500m of useful volume
3, the about 30h of hydraulic detention time.Volumetric loading 1.5～1.8Kg/m
3.d, sludge yield 0.05Kg mud/KgCOD.The design variable of contact-oxidation pool is available depth 4.5m, ground type Reinforced Concrete Structure, overall dimensions 12000 * 12000 * 5000mm, the about 600m of useful volume
3, the about 36h of hydraulic detention time.Activated sludge concentration 2～4g/ liter, volumetric loading 0.6～0.8Kg/m
3D, sludge yield 0.05Kg mud/KgCOD, water-gas ratio 1: 5～10.The design variable of second pond is for removing the suspended substance in the sewage, in be provided with the running type mud scraper.
Available depth 3.2m, ground type Reinforced Concrete Structure, overall dimensions 12000 * 4000 * 3500mm, the about 150m of useful volume
3, the about 9h of hydraulic detention time.The design variable of mud storage pool is available depth 2.7m, underground type Reinforced Concrete Structure, overall dimensions 6000 * 5500 * 3000mm, the about 80m of useful volume
3Sludge thickener design variable be available depth 5.7m, semi-underground type Reinforced Concrete Structure, overall dimensions 6000 * 6000 * 6000mm, the about 150m of useful volume
3The size of artificial swamp is 6000m
2, projected depth is 0.4m..
When the present invention moved, the water quality effluent index up to 99%, had satisfied the water quality requirement of middle water reuse to organic clearance much smaller than 20mg/L.
Claims (6)
1. water recycling device in artificial swamp CODcr＞5000mg/L organic industrial water mainly comprises:
Settling pit connects grid, and the supernatant liquor of settling pit flows into grid, by grid the organism in the supernatant liquor is filtered;
The neutralization tank that catchments, the sewage that the plaid matching grid current is gone into are made potential of hydrogen and are regulated;
Catchment in the sewage in the neutralization tank and the back flows into the hydrolyzing regulation pond that is filled with polyethylene software filler, it is the small-particle organism that the larger molecular organics in the sewage is carried out anaerobic digestion;
Sewage is made further anaerobic digestion to organism in hydrolyzing regulation pond flow to flow lifting type sludge anaerobic reaction response device;
Sewage behind further anaerobic digestion organism flows into the anaerobic filter that is filled with polyethylene software filler, with further removal organism, then flow to the biological contact oxidation pond that is filled with polyethylene software filler and aerator, the organism of difficult degradation is removed;
The sewage of biological contact oxidation pond flows into second pond, and particulate matter is sunken to the second pond bottom and forms mud;
Second pond top is provided with mud scraper, collects second pond bottom mud, and is delivered to first sludge sump and carries out preliminary mud-water separation, concentrates to second sludge sump again; Mud after concentrating is squeezed into pressure filter and is carried out mud-water separation;
After sewage inflow sterilization pool in the second pond behind the removal mud carries out disinfection, flow into artificial swamp.
2. water recycling device in artificial swamp CODcr as claimed in claim 1＞5000mg/L organic industrial water wherein, is provided with diving mixer in the neutralization tank that catchments, and is used for the sump pump of sewage transport to hydrolyzing regulation pond.
3. water recycling device in artificial swamp CODcr as claimed in claim 1＞5000mg/L organic industrial water, wherein, the aerator of installing in the biological contact oxidation pond is by the pipe connection gas blower.
4. water recycling device in artificial swamp CODcr as claimed in claim 1＞5000mg/L organic industrial water, wherein, the mud scraper that second pond top is provided with is the running type mud scraper, the mud of collection is delivered to sludge sump by sludge pipe.
5. water recycling device in artificial swamp CODcr as claimed in claim 1＞5000mg/L organic industrial water, wherein, the pressure filter that carries out mud-water separation is a belt filter press.
6. water recycling device in artificial swamp CODcr as claimed in claim 1＞5000mg/L organic industrial water, wherein, the sterilizing agent in the sterilization pool is to be prepared by chlorine dioxide generator.
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| CN102139997B (en) * | 2011-05-04 | 2012-07-04 | 云南康泰环保科技有限公司 | Three-level biological purification process for disposing terminal waste water from sugar refinery |
| CN102515438B (en) * | 2011-12-22 | 2014-01-15 | 昆明理工大学 | Landfill leachate treatment process |
| CN102964045A (en) * | 2012-12-21 | 2013-03-13 | 湖南清和环保技术有限公司 | Sludge treatment facility |
| CN104176877B (en) * | 2014-07-25 | 2016-01-20 | 浩蓝环保股份有限公司 | A kind of apparatus and method of three layers of trickling filter advanced treatment waste water of livestock poultry |
| CN106630464B (en) * | 2016-12-30 | 2020-06-16 | 湖北省农业生态环境保护站 | Farmland balance regulation and control system and agricultural wetland circulation system |
| CN108423936A (en) * | 2018-04-04 | 2018-08-21 | 山东沂蒙老区酒业有限公司 | A kind of brewed spirit waste water treatment process |
| CN109231698A (en) * | 2018-10-25 | 2019-01-18 | 郑州大学 | Sewage disposal system and processing method, construction method, control system for northern country |
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| CN1689989A (en) * | 2004-04-23 | 2005-11-02 | 中国科学院生态环境研究中心 | Denitrogenation technique for waste water containing high concentration ammonia nitrogen |
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| CN101254995A (en) * | 2008-04-02 | 2008-09-03 | 北京师范大学 | Integral life sewage treating ecological box |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1689989A (en) * | 2004-04-23 | 2005-11-02 | 中国科学院生态环境研究中心 | Denitrogenation technique for waste water containing high concentration ammonia nitrogen |
| CN2908484Y (en) * | 2005-09-14 | 2007-06-06 | 吴桐 | Animal culturing sewage treatment system |
| CN201010606Y (en) * | 2007-05-11 | 2008-01-23 | 王宝贞 | Sewage treatment system with zero discharge of sludge |
| CN101254995A (en) * | 2008-04-02 | 2008-09-03 | 北京师范大学 | Integral life sewage treating ecological box |
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