CN102815845B - Lossless regeneration and recovery device of phosphorus of high phosphorus salt organic industrial wastewater and recovery process - Google Patents
Lossless regeneration and recovery device of phosphorus of high phosphorus salt organic industrial wastewater and recovery process Download PDFInfo
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- CN102815845B CN102815845B CN201210347185.4A CN201210347185A CN102815845B CN 102815845 B CN102815845 B CN 102815845B CN 201210347185 A CN201210347185 A CN 201210347185A CN 102815845 B CN102815845 B CN 102815845B
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Abstract
The invention provides a technology for recycling high phosphorus salt organic industrial wastewater and recovering phosphorus and comprises a high mass transfer hydrolysis presetting basin, an electric flocculation turbulence flow sedimentation basin, a limited aeration membrane bio-reactor (MBR) basin and a terminal reverse osmosis device which are connected successively. By strengthening the mechanisms of high efficient pre-degradation of organism-containing phosphorus, electric flocculation turbulence flow sedimentation, MBR basin limited aeration and the like, the high phosphorus salt organic industrial wastewater is subjected to denitriding and dephosphorization and regeneration to enable the water quality after the water is processed to meet the water quality standard of industrial recycling and losslessly recover and reuse the phosphorus in wastewater. The flocculate containing phosphorus obtained in the electric flocculation turbulence flow sedimentation basin can be used as agricultural slow-release phosphatic fertilizer to strengthen phosphorus releasing effect.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to harmless retrieving arrangement and the recovery process of phosphorus in a kind of high microcosmic salt organic industrial sewage.
Background technology
Along with economic fast development, the phosphoric of land is through non-human act and the artificial exploitation circulation that constantly enters society, final rainwash and the ocean of importing, the eutrophication phenomenon causing thus, the harm such as wawter bloom, red tide cause very big puzzlement to human society and physical environment.Meanwhile, as a large amount of losses of phosphoric of soil nutrient composition, also cause soil depletion, crop in poor harvest, the recycling of visible phosphoric is imperative in soil.Once the high-content phosphorus element in high microcosmic salt organic industrial sewage and nitrogen element are not treated or defective processing enters natural water, its harm causing is difficult to bear, if and phosphorus element is wherein removed and is recycled, not only can solve eutrophication harm, also can effectively promote soil fertility, its favourable prospect can be predicted.
At present, the removal of phosphorus is mainly contained to biological process and chemical method.Biological process dephosphorization is that active sludge is alternately moved under anaerobic and aerobic state, can make the growth of preponderating of the phosphatic phosphorus fungus of excess accumulation, makes active sludge phosphorus content higher than ordinary activated sludge.In mud, phosphorus fungus discharges phosphorus under anaerobic state, under good oxygen condition, excessively absorbs phosphorus.Through discharging rich phosphorus excess sludge, remove phosphoric, but its clearance generally can only reach 30%-40%, single creature dephosphorization method cannot reach 0.5mg/L standard.Chemical method dephosphorization is by adding one or several flocculation agents and coagulant aids, phosphorus element in sewage is become to granule sludge to precipitate after separated and removes, add in a large number molysite, aluminium saline flocculating agent can reach emission standard, but molysite, adding in a large number also of aluminium salt certainly will cause disadvantageous effect to biological processing unit.
Relevant research shows, when phosphor in sewage exists with phosphate radical form, dephosphorization mainly be take ferrous phosphate and aluminum phosphate form as main, ferrous phosphate and aluminum phosphate in soil release that phosphorus effect is far superior to calcium phosphate release phosphorus effect.
As fully visible, in high microcosmic salt organic industrial sewage, phosphorus can't harm the advantage that recovery process has high clearance, high-recovery, is easy to the aspects such as popularization, sustainability.
Summary of the invention
For the problems referred to above, the present invention proposes the harmless retrieving arrangement of a kind of high phosphorus organic industrial sewage phosphorus and recovery process.Concrete scheme is as follows:
A harmless reclaiming device for microcosmic salt organic industrial sewage phosphorus, this device comprises: high mass transfer is hydrolyzed presetting pond 17, the turbulent settling tank 18 of electricity flocculation, restriction aeration MBR pond 19 and terminal reverse osmosis unit.
Described high mass transfer is hydrolyzed presetting pond 17, Chi Shen is 4m, hydraulic detention time remains on 4-6h, in pond, arrange and turn over waterwall, pond body is divided into the cumulative compartment of several volumes, fills up the special water turbulence modularization filler 1 of cutting in compartment, end arranges precipitation inclined plate 7 compartments, high microcosmic salt organic industrial sewage seethes each compartment of flowing through successively up and down, and each compartment pool bottom sludge is regularly back to Chi Ding or outer row's collection through shore pipe 9.Waste water flow velocity reduces gradually, be beneficial to large particulate matter in waste water precipitates in high mass transfer is hydrolyzed the end settling tank in presetting pond, remove suspended solid (SS), reduce the processing pressure to subsequent technique, each compartment pool bottom sludge is regularly back to Chi Ding or outer row collects.In water inlet, suspended substance can be in this precipitation accumulation, and is hydrolyzed and subdues voluntarily by anaerobic effect, and in pond, microorganism can be usingd precipitating sludge and hydrolysate thereof and removed total nitrogen as carbon source denitrification, and the backflow phosphorus containing sludge in restriction aeration MBR pond discharges phosphorus in this anaerobism.
The described water turbulence modularization filler 1 of cutting is processed by modified plastics plate, and between plate, fin becomes the non-intersect form of intersection to build, and plays and cuts water effect, changes water movement flow velocity and direction, promotes turbulent mass transfer effect.
Electricity flocculation current stabilization settling tank 18 is comprised of electrolyzer 2, coagulation basin 3 and settling tank 4, and electrolyzer 2 anodes 10 are aluminium sheet or iron plate, and negative electrode 11 is graphite, waste water is after electrolyzer 2, enter coagulation basin 3, in coagulation basin 3, load and cut water turbulence modularization filler 1, then through settling tank 4 water outlets.Coagulation basin is divided into several compartments, in compartment, load and cut water turbulence modularization filler 1, through the waste water of preliminary electric throwing out, carry the turbulent shear motion in compartment process of flowing through of aluminium hydroxide or ferrous hydroxide colloid core, form gradually alumen ustum throw out, final uniform water distribution enters efficient inclined-plate clarifying basin by bottom, in this precipitation, remove alumen ustum throw out, this phosphorous throw out can be used for agriculture slow-release phosphate fertilizer, releases phosphorus effect remarkable.
The turbulent settling tank water outlet of electricity flocculation enters restriction aeration MBR pond 19.Described restriction aeration MBR pond 19 is comprised of restriction aeration tank 5 and traditional MBR pond 6 two portions, and swash plate restriction aerating apparatus is loaded in restriction aeration tank, extends gas retention time in water body, enhanced aeration effect.Two portions are interconnected at the bottom of pond, have certain slope at the bottom of pond, and lower at the bottom of restriction 5 ponds, aeration tank, rich phosphorous sludge comes together in this, enter high mass transfer be hydrolyzed presetting pond 17 feed-water ends through refluxing, and carry out anaerobic phosphorus release.
Restriction aeration MBR pond water outlet enters intermediate water tank, through high-pressure pump, enters terminal reverse osmosis treatment device, further removes the pollutents such as salt, and system final outflow water reaches industrial reuse standard.
Utilize harmless retrieving arrangement to carry out the harmless technique reclaiming of high microcosmic salt organic industrial sewage, efficient pre-degraded through strengthening phosphorus-containing matter, electricity flocculation turbulent flow precipitation ,MBR pond restriction aeration process and terminal reverse osmosis unit, phosphorus element in high microcosmic salt organic industrial sewage be can't harm to regeneration, make to process rear effluent quality and reach industrial reuse water quality standard.
Technique operability of the present invention is high, when effectively removing the every pollutent in high microcosmic salt organic industrial sewage, by reclaiming the flocculate precipitate of electricity flocculation current stabilization settling tank, realize the recovery of phosphorus, thereby fully demonstrate its environmental benefit, economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is process flow sheet;
Fig. 2 is that high mass transfer is hydrolyzed presetting pond sectional view;
Fig. 3 is for cutting water turbulence modularization filler sectional view;
Fig. 4 is the turbulent settling tank sectional view of electricity flocculation;
Fig. 5 is restriction aeration MBR pond sectional view.
Wherein: 1 for cutting water turbulence modularization filler; 2 is electrolyzer; 3 is coagulation basin; 4 is settling tank; 5 is restriction aeration tank; 6 is traditional MBR pond; 7 is precipitation inclined plate; 8 is water leg; 9 is shore pipe; 10 is aluminium (iron) plate electrode; 11 is Graphite Electrodes; 12 is scum silica frost receiving tank; 13 is uniform water distribution canal; 14 is MBR film; 15 is aerating apparatus; 16 is sludge reflux; 17 are hydrolyzed presetting pond for high mass transfer; 18 is the turbulent settling tank of electricity flocculation; 19 is restriction aeration MBR pond.
Embodiment
A harmless reclaiming device for microcosmic salt organic industrial sewage phosphorus, this device comprises: high mass transfer is hydrolyzed presetting pond 17, the turbulent settling tank 18 of electricity flocculation, restriction aeration MBR pond 19 and terminal reverse osmosis unit.
Described high mass transfer is hydrolyzed presetting pond 17, Chi Shen is 4m, hydraulic detention time remains on 4-6h, in pond, arrange and turn over waterwall, pond body is divided into the cumulative compartment of several volumes, fills up the special water turbulence modularization filler 1 of cutting in compartment, end arranges precipitation inclined plate 7 compartments, high microcosmic salt organic industrial sewage seethes each compartment of flowing through successively up and down, and each compartment pool bottom sludge is regularly back to Chi Ding or outer row's collection through shore pipe 9.Waste water flow velocity reduces gradually, be beneficial to large particulate matter in waste water precipitates in high mass transfer is hydrolyzed the end settling tank in presetting pond, remove suspended solid (SS), reduce the processing pressure to subsequent technique, each compartment pool bottom sludge is regularly back to Chi Ding or outer row collects.In water inlet, suspended substance can be in this precipitation accumulation, and is hydrolyzed and subdues voluntarily by anaerobic effect, and in pond, microorganism can be usingd precipitating sludge and hydrolysate thereof and removed total nitrogen as carbon source denitrification, and the backflow phosphorus containing sludge in restriction aeration MBR pond discharges phosphorus in this anaerobism.
The described water turbulence modularization filler 1 of cutting is processed by modified plastics plate, and between plate, fin becomes the non-intersect form of intersection to build, and plays and cuts water effect, changes water movement flow velocity and direction, promotes turbulent mass transfer effect.
Electricity flocculation current stabilization settling tank 18 is comprised of electrolyzer 2, coagulation basin 3 and settling tank 4, and electrolyzer 2 anodes 10 are aluminium sheet or iron plate, and negative electrode 11 is graphite, waste water is after electrolyzer 2, enter coagulation basin 3, in coagulation basin 3, load and cut water turbulence modularization filler 1, then through settling tank 4 water outlets.Coagulation basin is divided into several compartments, in compartment, load and cut water turbulence modularization filler 1, through the waste water of preliminary electric throwing out, carry the turbulent shear motion in compartment process of flowing through of aluminium hydroxide or ferrous hydroxide colloid core, form gradually alumen ustum throw out, final uniform water distribution enters efficient inclined-plate clarifying basin by bottom, in this precipitation, remove alumen ustum throw out, this phosphorous throw out can be used for agriculture slow-release phosphate fertilizer, releases phosphorus effect remarkable.
The turbulent settling tank water outlet of electricity flocculation enters restriction aeration MBR pond 19.Described restriction aeration MBR pond 19 is comprised of restriction aeration tank 5 and traditional MBR pond 6 two portions, and swash plate restriction aerating apparatus is loaded in restriction aeration tank, extends gas retention time in water body, enhanced aeration effect.Two portions are interconnected at the bottom of pond, have certain slope at the bottom of pond, and lower at the bottom of restriction 5 ponds, aeration tank, rich phosphorous sludge comes together in this, enter high mass transfer be hydrolyzed presetting pond 17 feed-water ends through refluxing, and carry out anaerobic phosphorus release.
Utilize harmless retrieving arrangement to carry out the harmless technique reclaiming of high microcosmic salt organic industrial sewage, efficient pre-degraded through strengthening phosphorus-containing matter, electricity flocculation turbulent flow precipitation ,MBR pond restriction aeration process and terminal reverse osmosis unit, phosphorus element in high microcosmic salt organic industrial sewage be can't harm to regeneration, make to process rear effluent quality and reach industrial reuse water quality standard.
Restriction aeration MBR pond water outlet enters intermediate water tank, through high-pressure pump, enters terminal reverse osmosis treatment device, further removes the pollutents such as salt, and system final outflow water reaches industrial reuse standard.
Finally it should be noted that: obviously, above-described embodiment is only for example of the present invention is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection scope of the present invention.
Claims (2)
1. the harmless reclaiming device of a high microcosmic salt organic industrial sewage, it is characterized in that: this device comprises: high mass transfer is hydrolyzed presetting pond (17), electricity flocculation turbulent settling tank (18), restriction aeration MBR pond (19) and terminal reverse osmosis unit, described high mass transfer is hydrolyzed presetting pond (17), Chi Shen is 4m, hydraulic detention time remains on 4-6h, in pond, arrange and turn over waterwall, pond body is divided into the cumulative compartment of several volumes, in compartment, fill up the special water turbulence modularization filler (1) of cutting, end arranges precipitation inclined plate (7) compartment, high microcosmic salt organic industrial sewage seethes each compartment of flowing through successively up and down, each compartment pool bottom sludge is regularly back to Chi Ding or outer row's collection through shore pipe (9), the described water turbulence modularization filler (1) of cutting is processed by modified plastics plate, between plate, fin becomes the non-intersect form of intersection to build, play and cut water effect, change water movement flow velocity and direction, promote turbulent mass transfer effect, electricity flocculation current stabilization settling tank (18) is by electrolyzer (2), coagulation basin (3) and settling tank (4) form, electrolyzer (2) anode (10) is aluminium sheet or iron plate, negative electrode (11) is graphite, waste water is after electrolyzer (2), enter coagulation basin (3), in coagulation basin (3), load and cut water turbulence modularization filler (1), again through settling tank (4) water outlet, described restriction aeration MBR pond (19) is comprised of restriction aeration tank (5) and traditional MBR pond (6) two portions, two portions are interconnected at the bottom of pond, at the bottom of pond, there is certain slope, lower at the bottom of restriction pond, aeration tank (5), rich phosphorous sludge comes together in this, through refluxing, enter high mass transfer and be hydrolyzed presetting pond (17) feed-water end, carry out anaerobic phosphorus release.
2. one kind is utilized device described in claim 1 to carry out the harmless technique reclaiming of high microcosmic salt organic industrial sewage, it is characterized in that: through the efficient pre-degraded of strengthening phosphorus-containing matter, electricity flocculation turbulent flow precipitation ,MBR pond restriction aeration process and terminal reverse osmosis unit, phosphorus element in high microcosmic salt organic industrial sewage be can't harm to regeneration, make to process rear effluent quality and reach industrial reuse water quality standard.
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| CN105130133A (en) * | 2015-09-29 | 2015-12-09 | 天津邦盛净化设备工程有限公司 | Treatment system and method for water-soluble paint production wastewater |
| CN111875158A (en) * | 2020-07-07 | 2020-11-03 | 安庆常润米业股份有限公司 | A waste water dephosphorization system for rice deep-processing |
| CN112551502A (en) * | 2020-12-21 | 2021-03-26 | 长沙工研院环保有限公司 | Method for recycling ferroelectrolytic phosphorus removal precipitate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555083A (en) * | 2009-05-08 | 2009-10-14 | 江苏金山环保工程集团有限公司 | Baffling contact precipitation integral anaerobic reactor |
| CN101560040A (en) * | 2009-05-08 | 2009-10-21 | 北京清大国华环保科技有限公司 | Method and device for processing pharmaceutical wastewater by pulse electrocoagulation-MBR |
| CN101671090A (en) * | 2009-04-29 | 2010-03-17 | 四川宇阳环境工程有限公司 | Combined processing technique of garbage percolates |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671090A (en) * | 2009-04-29 | 2010-03-17 | 四川宇阳环境工程有限公司 | Combined processing technique of garbage percolates |
| CN101555083A (en) * | 2009-05-08 | 2009-10-14 | 江苏金山环保工程集团有限公司 | Baffling contact precipitation integral anaerobic reactor |
| CN101560040A (en) * | 2009-05-08 | 2009-10-21 | 北京清大国华环保科技有限公司 | Method and device for processing pharmaceutical wastewater by pulse electrocoagulation-MBR |
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Effective date of registration: 20191118 Address after: No.31, floor 1, building 5, Shuangqiao East Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Bolen Technology Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park white floating Road 10 No. 2 No. Beikong science and Technology Building Room 226 Patentee before: Beijing Green All Environment Technology Co.,Ltd. |
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