CN102701519A - Method for ecological control on black-odor watercourse by combining electrochemistry with biology - Google Patents
Method for ecological control on black-odor watercourse by combining electrochemistry with biology Download PDFInfo
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- CN102701519A CN102701519A CN2012101566703A CN201210156670A CN102701519A CN 102701519 A CN102701519 A CN 102701519A CN 2012101566703 A CN2012101566703 A CN 2012101566703A CN 201210156670 A CN201210156670 A CN 201210156670A CN 102701519 A CN102701519 A CN 102701519A
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Abstract
The invention discloses a method for ecological control on black-odor watercourse by combining electrochemistry with biology. The method comprises the following measures: (1) carrying out biological catalytic oxidation, electrochemical treatment and oxygenation aeration treatment; (2) finishing electrochemical treatment, feeding a microorganism agent, and simultaneously keeping oxygenation aeration treatment; (3) spreading a bottom sludge biological agent, and simultaneously keeping oxygenation aeration treatment; (4) arranging biomembrane systems at certain intervals; and (5) arranging artificial floating islands, and planting emerging hydrophytes and aquatic plants on the artificial floating islands. The method is economical and practical, and achieves the effects of rapidly controlling, eliminating blackness and odor of water, prolonging the biologic chain of the watercourse, increasing the biodiversity of water and improving the water self-purification capability of the watercourse.
Description
Technical field
The present invention relates to environmental protection industry (epi), particularly a kind of electrochemistry that adopts combines biological and ecological to administer the method in black smelly river course.
Background technology
Black smelly river course mainly is to be polluted by external source constantly to get into the river course, and the water environment capacity that causes the river course is greater than due to the self-purification capacity.Black smelly river water body is seriously polluted, and dissolved oxygen is almost nil.River bottom mud is the important presence of pollution sources in river course; Black smelly bed mud passes through constantly to overlying water releasing organics and inorganic salt; Make water quality deterioration, the bed mud oxygen consumption is a water body oxygen consumption major portion, is the black smelly major cause in river course; Bed mud denitrification, methanation cause a large amount of black smelly bed mud come-ups, and the N in the bed mud, P, nutritive salt discharge and causes eutrophication again.In the black smelly river regulation in city at present; Single one or several technology is used; Shortage system and continuity are for example used the biological and ecological technology governance separately, have slow, difficult lasting, the shortcoming such as efficient is low that takes effect; And the electrochemistry WWT uses seldom separately in the black smelly river regulation because cost is higher.
Summary of the invention
Problem to be solved by this invention just provides a kind of electrochemistry that adopts and combines biological and ecological to administer the method in black smelly river course, and economy, actual effect reach quick improvement; It is black smelly to eliminate water body; Prolong the river course biologic chain, increase the water body species diversity, improve the river water body self-purification capacity.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of electrochemistry that adopts combines biological and ecological to administer the method in black smelly river course, it is characterized in that comprising following measure:
1) waiting that the external source pollution of administering the river course gets into front end; The cofferdam forms contact-oxidation pool; The bio-contact oxidation system is set in contact-oxidation pool, simultaneously carries out electrochemical treatment in the river course waiting to administer, will wait to administer in the river course segmentation and aerating system is set and carry out the oxygenation aeration and handle;
2) drop into microbiobacterial agent in the river course waiting to administer, finish electrochemical treatment before this, keep the oxygenation aeration to handle simultaneously;
3) be sprinkled into the bed mud bacteria agent in the river course and carry out bed mud oxidation repair process waiting to administer, set up the system of redox and biological degradation Organic pollutants, keep the oxygenation aeration to handle simultaneously;
4) waiting that administering the arrangement of river course interval one segment distance can adsorb mikrobe and planktonic organism, the biofilm system that lets mikrobe and planktonic organism breed;
5) waiting that administering river course central authorities is provided with artificial floating island, plantation water waterplant very on artificial floating island is planted pasture and water waiting to administer in the river course, makes to wait to administer the river course and recover natural self-purification capacity.
Further; Said electrochemical treatment working voltage is the electrochemical treater of 5～30V; According to waiting that administering river water evenly arranges; Every electrochemical treater is handled 100～500 tons of water yields, and the spacing of close in twos electrochemical treater is 20～40 meters, and uses DSA noble electrode and metal electrode.
Further, said bio-contact oxidation system comprises floating stuffing, hangs over biological contact membranes and oxygenate apparatus on the floating stuffing, the specific surface area 380～1200m of said biological contact membranes
2/ m
3, porosity is greater than 99%, and by the oxygenate apparatus oxygenation, the maintenance dissolved oxygen is not less than 2mg/L, keeps DO more than 2mg/L, and controlling depth remains between 1.5～3.5m.
Further, said aerating system comprises self-sinking microporous aerated pipe and water lift formula aerator under water, and DO concentration is more than 3mg/L in the said oxygenation aeration processing maintenance water.The self-sinking microporous aerated pipe coefficient of oxygen utilization is high under water, can be directly to the bed mud oxygen supply; Water lift formula aerator enlarges waters dissolved oxygen scope, quickens the exchange of water layer up and down, has also beautified view.
Further, the total plate count of said microbiobacterial agent>=1 * 10
9/ g, density is 30～520kg/m
3, usage quantity is 0.5～2ppm.
Further, said microbiobacterial agent comprises nitrifier, denitrifying bacteria, photosynthetic bacterium, milk-acid bacteria, proteolytic enzyme, lypase, glycase and cellulase.With replenish the breeding rapidly in water of indigenous microorganism colony through the microbial strains of screening, adaptation, cultivation and improvement, form dominant microflora, reinforcement is to organic decomposition; Clean water body; Microbiobacterial agent is a natural microbial, does not produce variation and pathogenic bacterium, and is harmless to human non-toxic.
Further, said bed mud bacteria agent is made up of microbiobacterial agent, biological growth promoter and zeyssatite, zeolite, regularly adds according to the sediment pollution degree, and each usage quantity is at 5～30g/m
2Utilize microbiological oxidation to decompose the organism in the mud, improve the bed mud redox potential, promote the bed mud mineralising, and reach solid phosphorus effect, eliminate the black smelly basic reason in river course.
Further, said biofilm system comprises microbial film, hangs biomembranous biological rope and artificial pasture and water, and said microbial film accounts for waits to administer 10～20% of the river course total area, and the diameter of said biological rope is 40～60mm,, surface-area 0.65～2.10m
2/ m; Said artificial pasture and water comprise sheet, column, the tree root shape pasture and water of being made by macromolecular material.
Further, the said very cultivated area of water waterplant accounts for and waits to administer 10～30% of the river course total area.
Further, the cultivated area of said pasture and water accounts for and waits to administer 15～35% of the river course total area.
After adopting technique scheme, the present invention has following advantage: not be used in to wait to administer and build buildings and diversion is handled to waiting to administer outside the river course in the river course in, need not the desilting dirt-carrying, do not influence functions such as original flood discharge, flood control, i.e. original position improvement; Shortcomings such as the improvement that has solved the biological and ecological technology takes effect slowly, difficulty is lasting, efficient is low, cost is lower, has improved the efficient that biological and ecological is repaired, and shortens the improvement cycle, makes water body reach the eubiosis fast.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is a control measures block diagram of the present invention;
Fig. 2 is governance flowchart figure of the present invention.
Embodiment
The invention provides a kind of electrochemistry that adopts and combine biological and ecological to administer the method in black smelly river course, comprise following measure:
1) waiting that the external source pollution of administering the river course gets into front end; The cofferdam forms contact-oxidation pool; The bio-contact oxidation system is set in contact-oxidation pool, simultaneously carries out electrochemical treatment in the river course waiting to administer, will wait to administer in the river course segmentation and aerating system is set and carry out the oxygenation aeration and handle;
2) drop into microbiobacterial agent in the river course waiting to administer, finish electrochemical treatment before this, keep the oxygenation aeration to handle simultaneously;
3) be sprinkled into the bed mud bacteria agent in the river course and carry out bed mud oxidation repair process waiting to administer, set up the system of redox and biological degradation Organic pollutants, keep the oxygenation aeration to handle simultaneously;
4) waiting that administering the arrangement of river course interval one segment distance can adsorb mikrobe and planktonic organism, the biofilm system that lets mikrobe and planktonic organism breed;
5) waiting that administering river course central authorities is provided with artificial floating island, plantation water waterplant very on artificial floating island is planted pasture and water waiting to administer in the river course, makes to wait to administer the river course and recover natural self-purification capacity.
Said electrochemical treatment working voltage is the electrochemical treater of 5～30V; According to waiting that administering river water evenly arranges; Every electrochemical treater is handled 100～500 tons of water yields, and the spacing of close in twos electrochemical treater is 20～40 meters, and uses DSA noble electrode and metal electrode.Said bio-contact oxidation system comprises floating stuffing, hangs over biological contact membranes and oxygenate apparatus on the floating stuffing; Specific surface area 380～the 1200m2/m3 of said biological contact membranes; Porosity is greater than 99%, and by the oxygenate apparatus oxygenation, the maintenance dissolved oxygen is not less than 2mg/L; Keep DO more than 2mg/L, controlling depth remains between 1.5～3.5m.Said aerating system comprises self-sinking microporous aerated pipe and water lift formula aerator under water, and DO concentration is more than 3mg/L in the said oxygenation aeration processing maintenance water.The total plate count of said microbiobacterial agent >=1 * 109/g, density are 30～520kg/m3, and usage quantity is 0.5～2ppm.Said microbiobacterial agent is the pure natural mikrobe, does not contain pathogenic bacterium, comprises nitrifier, denitrifying bacteria, photosynthetic bacterium, milk-acid bacteria, proteolytic enzyme, lypase, glycase and cellulase.Said bed mud bacteria agent is made up of microbiobacterial agent, biological growth promoter and zeyssatite, zeolite, regularly adds according to the sediment pollution degree, and each usage quantity is at 5～30g/m2.Said biofilm system comprises microbial film, hangs biomembranous biological rope and artificial pasture and water, and said microbial film accounts for waits to administer 10～20% of the river course total area, and the diameter of said biological rope is 40～60mm,, surface-area 0.65～2.10m2/m; Said artificial pasture and water comprise sheet, column, tree root shape pasture and water, the for example Vilaterm of being made by macromolecular material.The said very cultivated area of water waterplant accounts for waits to administer 10～30% of the river course total area, and very water water mesophyte is preferably Canna generalis Bailey, iris, parasol grass, rye grass, cattail etc.The cultivated area of said pasture and water accounts for waits to administer 15～35% of the river course total area, and pasture and water are preferably hornwort, withered grass, waterweed etc.
In the present embodiment, utilize electrochemical treatment to produce ionization and redox reaction, produce the radical ion OH that has strong oxidizing property in a large number; To the broken chain open loop of macromolecular structure organism, break up macromolecular mass, reduce water clusters association number; Produce oxygen, ozone, magnetization, decolouring, deodorizing, flocculation cooperates the oxygenation aeration to clear up fast, pollutents such as COD, BOD5, ammonia nitrogen, total phosphorus improve biodegradability; Once-used degradeable water body 50～70% pollutents are separated out pollutent, the activation water body; It is black smelly to eliminate water body, improves biodegradability, for the biological and ecological in later stage creates favorable conditions.The effect of oxygenation aeration is: the H that produces during promote the oxidation organism anaerobic degradation
2Blackening odor causing substances such as S, thiomethyl alcohol and FeS suppress sedimentary phosphate and discharge, and improve water body dissolved oxygen content, and it is active to strengthen the water body aerobic microbiological, and degraded water body and bed mud organic pollutant are for the river channel ecology balance creates favorable conditions.Adopt the bio-contact oxidation system; Utilize mikrobe to be adsorbed on biological contact membranes and the oxygen of ample supply on the filler; Through biological oxidation, the oxidation operation in the sewage is decomposed, reach the purification purpose; Be purified processing before making outer source of pollution get into the river course, alleviate river course later stage ecological management burden.After microbiobacterial agent drops into, recover the mineralization of mikrobe, make that existing organism is converted into inorganic states in the water body through artificial oxygenation; Suppress the metabolism of anaerobion, form dominant microflora, a large amount of breedings; Remove organic pollutants in water body, control river course organic pollutant total amount.In the electrochemical treatment later stage; Directly on river surface, be sprinkled into the bed mud bacteria agent and carry out bed mud oxidation repair process; Through the solid-liquid interchange contact of water body as medium, change into aerobic environment to anaerobic environment at the bottom of the river course, set up redox and biological degradation Organic pollutants system; Elimination because of in anaerobic environment and the anaerobic fermentation process constantly to the odorant pollutant generation mechanism of upper strata water body discharging, make river bottom mud form stable, clean, good health attitude system.Little point-source pollution and appropriate location whenever are spaced a distance in the river course, settle biofilm system, through the microbial film high-specific surface area; Absorption mikrobe and planktonic organism; Mikrobe and planktonic organism are bred on microbial film, and the minimizing water body flows and causes mikrobe to run off, thereby decomposes the pollutent in the water body; Also, improve the benthos variety for living species such as fish and snail provide the habitat.Waiting that administering river course central authorities is provided with artificial floating island, the water waterplant is endured in plantation on the chinampa, utilizes organic pollutant in its root system planar water; Root system is carried chlorine in water, mikrobe leans on the secretory product breeding of root simultaneously, strengthens the microorganism active ability; Through water body and bed mud reparation, correct position in the river course then, artificial growth some amount pasture and water; Pasture and water can utilize the inorganics synthesis of organic substance; Help realizing ecosystem material balance, increase the restoration of the ecosystem of species diversity, make the river course recover natural self-purification capacity.
In the above-mentioned embodiment, electrochemical treater is according to whole pollution of river thing degraded situation, reach strengthen administer purpose after, reduce treater, keep proper amt, as burst water pollution incident and normal dimensions water holding matter equilibrated stand-by facilities.
The whole control measures of the present invention can be generalized into as shown in Figure 1, and concrete governance flowchart is as shown in Figure 2.The river course is whole administers beginning, through electrochemistry oxygenation aeration eliminates after 10 days deceive smelly, water transparency 0.6～1.2m, in the water mikrobe to aerobic succession, water body presents green by anaerobism; After 2 weeks, DO reaches >=more than the 4mg/L; After 1～2 month, bed mud changes grey into by black; After 3 months, bed mud progressively becomes drabon look, and bed mud thickness progressively reduces.Former COD administers back COD and reduces by 80～90% between 120-200mg/L in the river course, and NH3-N reduces by 75～85%, H
2S reduces by 90%, and DO remains on more than the 4mg/L, and the bed mud total organic carbon reduces by 70～80%, and transparency remains on more than the 2m, makes it to reach environment surface water III～IV class standard.
Claims (10)
1. one kind is adopted electrochemistry to combine biological and ecological to administer the method in black smelly river course, it is characterized in that comprising following measure:
1) waiting that the external source pollution of administering the river course gets into front end; The cofferdam forms contact-oxidation pool; The bio-contact oxidation system is set in contact-oxidation pool, simultaneously carries out electrochemical treatment in the river course waiting to administer, will wait to administer in the river course segmentation and aerating system is set and carry out the oxygenation aeration and handle;
2) drop into microbiobacterial agent in the river course waiting to administer, finish electrochemical treatment before this, keep the oxygenation aeration to handle simultaneously;
3) be sprinkled into the bed mud bacteria agent in the river course and carry out bed mud oxidation repair process waiting to administer, set up the system of redox and biological degradation Organic pollutants, keep the oxygenation aeration to handle simultaneously;
4) waiting that administering the arrangement of river course interval one segment distance can adsorb mikrobe and planktonic organism, the biofilm system that lets mikrobe and planktonic organism breed;
5) waiting that administering river course central authorities is provided with artificial floating island, plantation water waterplant very on artificial floating island is planted pasture and water waiting to administer in the river course, makes to wait to administer the river course and recover natural self-purification capacity.
2. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course; It is characterized in that: said electrochemical treatment working voltage is the electrochemical treater of 5～30V; According to waiting that administering river water evenly arranges; Every electrochemical treater is handled 100～500 tons of water yields, and the spacing of close in twos electrochemical treater is 20～40 meters, and uses DSA noble electrode and metal electrode.
3. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course; It is characterized in that: said bio-contact oxidation system comprises floating stuffing, hangs over biological contact membranes and oxygenate apparatus on the floating stuffing, the specific surface area 380～1200m2/m3 of said biological contact membranes, and porosity is greater than 99%; And by the oxygenate apparatus oxygenation; Keep dissolved oxygen to be not less than 2mg/L, keep DO more than 2mg/L, controlling depth remains between 1.5～3.5m.
4. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course; It is characterized in that: said aerating system comprises self-sinking microporous aerated pipe and water lift formula aerator under water, and DO concentration is more than 3mg/L in the said oxygenation aeration processing maintenance water.
5. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course, and it is characterized in that: the total plate count of said microbiobacterial agent >=1 * 109/g, density are 30～520kg/m3, and usage quantity is 0.5～2ppm.
6. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course, and it is characterized in that: said microbiobacterial agent comprises nitrifier, denitrifying bacteria, photosynthetic bacterium, milk-acid bacteria, proteolytic enzyme, lypase, glycase and cellulase.
7. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course; It is characterized in that: said bed mud bacteria agent is made up of microbiobacterial agent, biological growth promoter and zeyssatite, zeolite; Regularly add according to the sediment pollution degree, each usage quantity is at 5～30g/m2.
8. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course; It is characterized in that: said biofilm system comprises microbial film, hangs biomembranous biological rope and artificial pasture and water; Said microbial film accounts for waits to administer 10～20% of the river course total area; The diameter of said biological rope is 40～60mm,, surface-area 0.65～2.10m2/m; Said artificial pasture and water comprise sheet, column, the tree root shape pasture and water of being made by macromolecular material.
9. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course, it is characterized in that: the said very cultivated area of water waterplant accounts for waits to administer 10～30% of the river course total area.
10. a kind of electrochemistry that adopts according to claim 1 combines biological and ecological to administer the method in black smelly river course, and it is characterized in that: the cultivated area of said pasture and water accounts for waits to administer 15～35% of the river course total area.
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| CN104030449A (en) * | 2014-05-19 | 2014-09-10 | 广西益江环保科技有限责任公司 | Closed or semi-closed landscape water body governance method |
| CN104690084A (en) * | 2013-12-05 | 2015-06-10 | 中国科学院沈阳应用生态研究所 | Electrochemical and microbial synergetic restoration integrated equipment for organic contaminated soil and restoration method thereof |
| CN104857930A (en) * | 2015-05-14 | 2015-08-26 | 江苏玖力纳米材料科技有限公司 | Method for producing special-purpose modified mineral materials for black-odor rivers |
| CN106676022A (en) * | 2015-11-06 | 2017-05-17 | 丹阳市尚德生物科技有限公司 | Method for preparing microbe bacteria liquid for treating black-odor riverway |
| CN107522367A (en) * | 2017-10-16 | 2017-12-29 | 北京国泰节水发展股份有限公司 | A kind of processing method of city black and odorous water and application |
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| CN108264198A (en) * | 2018-02-01 | 2018-07-10 | 宁波立升环保工程有限公司 | A kind of administering method in water pollution river |
| CN108298695A (en) * | 2018-01-15 | 2018-07-20 | 杭州秀川科技有限公司 | A kind of administering method of river black and odorous water |
| CN108529759A (en) * | 2018-04-10 | 2018-09-14 | 北京华景山水生态科技有限公司 | A kind of water pollution sediment in-situ is biological reinforced to be handled and Benthic ecology restorative procedure |
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| CN109574252A (en) * | 2018-12-29 | 2019-04-05 | 武汉市鄂正农科技发展有限公司 | A kind of open sewage disposal system and processing method for small flow water body |
| CN111689640A (en) * | 2019-03-13 | 2020-09-22 | 北京北方宏拓环境科技有限公司 | Sewage treatment method |
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| CN104030449B (en) * | 2014-05-19 | 2016-07-13 | 广西益江环保科技有限责任公司 | A kind of type semienclosed treating landscape water body method of closing |
| CN104857930A (en) * | 2015-05-14 | 2015-08-26 | 江苏玖力纳米材料科技有限公司 | Method for producing special-purpose modified mineral materials for black-odor rivers |
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| CN109574252A (en) * | 2018-12-29 | 2019-04-05 | 武汉市鄂正农科技发展有限公司 | A kind of open sewage disposal system and processing method for small flow water body |
| CN111689640A (en) * | 2019-03-13 | 2020-09-22 | 北京北方宏拓环境科技有限公司 | Sewage treatment method |
| CN112194256A (en) * | 2020-09-29 | 2021-01-08 | 中生源(海南)生态环境发展有限公司 | Integrated device for cooperative treatment of water body and bottom mud |
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| CN102701519B (en) | 2013-09-04 |
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