CN1736909A - Eutrophication waters comprehensive treatment method - Google Patents
Eutrophication waters comprehensive treatment method Download PDFInfo
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- CN1736909A CN1736909A CN 200510092905 CN200510092905A CN1736909A CN 1736909 A CN1736909 A CN 1736909A CN 200510092905 CN200510092905 CN 200510092905 CN 200510092905 A CN200510092905 A CN 200510092905A CN 1736909 A CN1736909 A CN 1736909A
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Abstract
The invention discloses a synthesis treatment method for eutrophic water area, which comprises following steps: a. clearing the floater on water composed of algae water bloom by machine to take away mass algae particle and eliminate content of nitrogen and phosphor; b. using water-flow construction device to drive and promote water flow and destroy the over breeding of algae; c. cultivating biomembrane with microbe carriers in water to degradate pollutant.
Description
Technical field
The present invention relates to a kind of comprehensive processing method of eutrophic water, be mainly used in the water quality comprehensive regulation that causes waters, the face of land such as a large amount of lakes of breaking out of algae, river, reservoir, pond landscape water because of the height eutrophication.
Background technology
The waters, the face of land of China's eutrophication can be found everywhere, and no matter is the large-size lake in Dian Chi, Taihu Lake and so on, or lake, vest-pocket park in the city, sealing river course or the like, much serious eutrophication all.In the waters, the face of land of eutrophication, because nutritive elements such as nitrogen, phosphorus exceed standard, often cause algae such as basket green alga to be broken out in a large number, and usually form the floating layer of the thick algae of one deck at the water surface, be called " wawter bloom "." wawter bloom " is known as ecological cancer, greatly worsened water body environment, causes the mass mortality of the stench and fishes and shrimps of water body.It is a world-famous puzzle that the algal bloom of eutrophication water is administered.
The problem how global industry scientist cuts down nitrogen in the rivers and lakes, phosphorus in research, but it is difficult, because nitrogen, phosphorus wide material sources, nitrogen, phosphorus as fertilizer sources extensively exist in the soil, also never search out the effective nitrogen of a kind of cheapness, phosphorus removal method so far;
Also have a lot of people to adopt the waterplant method eutrophication in lake of harnessing a river, but it is also little to produce effects.Though waterplant can absorption portion in process of growth nitrogen, phosphorus, absorbed dose seldom, very slow, be no more than 20% in 1 year according to the study.Need establishing in large scale just can see some effects, but establishing in large scale cost height not only, key is to have destroyed original water surface view.Waterplant self winter witheredly need harvesting in addition, workload is very big, and withering period does not have any governance role.
Summary of the invention
The purpose of this invention is to provide a kind of instant effect, effective, the lasting effectively comprehensive processing method of eutrophic water, so that the harm of controlling algal bloom effectively and being caused, and organic contamination in the water administered synchronously, realize the significantly lifting of water quality.
The present invention is achieved in that a kind of comprehensive processing method of eutrophic water, and it comprises following steps:
The mechanical removal step of a, floater: remove floater on the water surface fast by the mechanize mode,, cut down nitrogen, phosphorus content in a large number by from water, taking a large amount of algae particles away comprising the algal bloom layer;
B, water body fluidization promote step: current directly are set in the waters build equipment, drive water body and flow, build circumstance of flowing water and destroy the excessive breeding of algae;
C, microbial film incubation step: microbe carrier directly is set in the waters, cultivates indigenous microorganism in a large number and form microbial film, utilize microbial film to dam and prey on algae and comprehensive degradation of contaminant.
The precedence relation of above-mentioned three basic steps does not need strict the qualification, both can progressively carry out by said sequence, can carry out synchronously yet, can certainly carry out by transpose.
This comprehensive processing method that comprises above-mentioned three basic steps is fit to be applied to the waters that the waters degree of depth is less than or equal to 0.5 meter, because water is more shallow, relies on air reaeration can obtain than sufficient dissolved oxygen, can not need in the waters aeration.
If the dissolved oxygen deficiency or the depth of water are darker in the waters, outside above-mentioned three steps, also can in water, increase aerating step: independent aerator directly is set carries out aeration in the waters, perhaps merge, be provided with and a kind ofly can build the super-flow that current again can aeration and make the stream aerating apparatus with current construction equipment described in the above-mentioned b step.
The depth of water during greater than 0.5 meter because the easy deficiency of water-bed dissolved oxygen preferably increases aerating step.
In order to cut down algae and nitrogen and phosphorus content quickly, can also increase the air supporting step: micro-bubble generation device is set, and adds flocculation agent, allow the algae of waters lower face float the upward water surface, and remove by above-mentioned a step in water.
In order to cut down nitrogen and phosphorus content quickly, also can increase pleuston plantation step: at first water surface establishing in large scale pleuston, pleuston is a large amount of absorbed nitrogens, phosphorus in process of growth, and last pleuston is eliminated in above-mentioned steps a together with wawter bloom.
Come a large amount of absorbed nitrogens, phosphorus nutrition element by algae self or by water surface pleuston, remove algae fast or water surface pleuston takes away a large amount of nitrogen, phosphoric from water by the mechanize mode, thereby can cut down nitrogen in the water, phosphorus nutrition constituent content greatly, reduce the degree of body eutrophication, the dynamics that the algal bloom outburst is spread unchecked is more and more littler, alleviates harm.
Above-mentioned air supporting, pleuston plantation, three steps of floater mechanical removal belong to the elementary improvement stage to eutrophic water, main effect is to control fast algae concentration, reduce the pollution hazard of algal bloom, and cut down the content of nitrogen, phosphorus nutrition element in the water.Through after these steps, water quality has clear improvement, for follow-up meticulous improvement is laid a good foundation.
After having removed the algal bloom layer that is enriched in the water surface in a large number, algae concentration will reduce significantly in the waters, but still have small-amount free attitude algae to be dispersed in the water body, under the situation that water landscape is had relatively high expectations, can also increase algae step extremely: by adding chemical algicide or using ultrasonic wave to kill the algae device and eliminate most algae.
Above-mentioned water body fluidization step, aerating step, microbial film incubation step, kill these four steps of algae step and belong to the meticulous improvement stage, mainly be the quantity that further controls the free state algae, and simultaneously organic contamination in the water is administered comprehensively degraded BOD (biochemical oxygen demand (BOD)), COD (chemical oxygen demand (COD)), NH
3-N (ammonia nitrogen), SS (suspended substance) etc. eliminate peculiar smell, black smelly, improve water transparency, realize comprehensive lifting of water body quality.
The present invention is by taking above-mentioned steps, the basket green alga wawter bloom that causes for the eutrophication because of water body is spread unchecked phenomenon provides strong control measures, can alleviate the pollution level of blue-green alga bloom fast, and further deeply administer, greatly improve the water body quality, and can carry out the comprehensive regulation to black smell that the water body organic contamination caused etc., promote the water body quality comprehensively.Method therefor of the present invention is nontoxic, and cost is low, is very suitable for the comprehensive regulation of surface water such as lake, city, river.
Description of drawings
Below in conjunction with accompanying drawing and most preferred embodiment content of the present invention is further specified:
Figure 1 shows that the improvement method flow synoptic diagram of first embodiment of the invention;
Figure 2 shows that the improvement method flow synoptic diagram of second embodiment of the invention.
Embodiment
The governance flowchart of first embodiment has only comprised mechanical removal step, water body fluidization promotion step, these three steps of microbial film incubation step of floater as shown in Figure 1.This improvement method is suitable for the depth of water below 0.5 meter, the obviously improvement in the waters of basket green alga wawter bloom occurred.Because the depth of water is more shallow,, do not need the aeration oxygen replenishing step so water-bed degree of oxygen deficiency is not serious.
Generally speaking, at eutrophic water, algae based on the basket green alga is enriched in significantly algal bloom of water surface formation in a large number, and be mingled with some leaves, rubbish, dead fish etc. and form floaters, so the first step of administering is to take the mechanical removal step of floater earlier, sweep off the algae enriched layer on water surface top layer, the algae underflow is transplanted on outside the water body, reduce algae concentration in the waters.Because algae self has absorbed a large amount of nitrogen, phosphoric, so also reduced the content of nitrogen, phosphoric in the water significantly like this, the dynamics that makes algae break out once more is more and more littler, until wawter bloom no longer occurring.
The mechanical removal method of concrete floater, the patent of invention 02125693.4 (removing method of wawter bloom and solid floater on water surface and equipment thereof) that can adopt the inventor to propose before this goes up disclosed method.
Removed after the dense algal bloom layer of a large amount of enrichments of the water surface, the fluidization of synchronous expansion water body promotes step and microbial film incubation step again, on the one hand water body is flowed, and stagnant water becomes running water, destruction is liked the algae living environment of stagnant water, and the control algae is outburst in a large number once more; In water, cultivate the microbial film of forming by a large amount of original indigenous microorganisms on the other hand, utilize microbial film to dam and prey on small-amount free attitude algae, further reduce the content of algae.
The water body fluidization promotes the specific implementation method of step to be: current directly are set in the waters that will administer build device, it can be that super-flow is made one or more in stream machine, propeller formula impeller, water pump or the fountain equipment that described current are built equipment, current are built device and are stirred water body, realize the water body fluidization.The water yield hour can use the way of water pump and fountain to stir water, and when the water yield was big, it is just very uneconomical that water pump and fountain stir water, should adopt super-flow to make the device that stream machine or propeller type impeller etc. can level stir huge current.
The specific implementation method of microbial film incubation step is: microbe carrier directly is set in the waters that will administer, microbe carrier can be one or more the mixture in rubble, grit, haydite, zeolite, gac or water treatment field various fillers commonly used such as elastic solid filler, ribbon formula filler, soft-filler, semi soft packing, suspension ball filler etc. or the solid objects with large surface area of other various materials and shape, after for some time, just can grow a large amount of microorganisms automatically on the mentioned microorganism carrier, constitute microbial film.
Above-mentioned three steps all are directly to carry out in the eutrophic water that will administer, and governance flowchart is not a property crossed, but go round and begin again, carry out repeatedly.
Fig. 2 is the governance flowchart figure of second embodiment, in the present embodiment, has adopted various steps proposed by the invention comprehensively, and is multi-pronged, the comprehensive regulation.It is suitable for seriously polluted, high to the improvement requirement, the darker waters of the depth of water.
Three steps of mechanical removal of the air supporting of front, the plantation of water surface pleuston, floater belong to the elementary improvement stage to the eutrophication composition, main effect is to cut down fast the content of nitrogen in the water, phosphorus nutrition element, and the control pollution level that algal bloom caused.The water body fluidization step of back, aerating step, microbial film incubation step, kill these four steps of algae step and belong to the meticulous improvement stage, mainly be the quantity that further controls the free state algae, and simultaneously organic contamination in the water is administered comprehensively degraded BOD (biochemical oxygen demand (BOD)), COD (chemical oxygen demand (COD)), NH
3-N (ammonia nitrogen), SS (suspended substance) etc. eliminate peculiar smell, black smelly, improve water transparency, realize comprehensive lifting of water body quality.
The specific implementation method of air supporting step is: micro bubble generation device directly is set in the waters that will administer, described micro-bubble generation device can be a microporous aeration device (micropore aeration pipe, the micro-pore aeration dish), shearing micro-bubble generation device (concavo-concave air supporting machine), the pressurized dissolved air flotation device, the atomizing aeration flexible pipe, in the gas-liquid mixing pump etc. one or more, or the micro bubble generation device of selling on other market, can in water, discharge a large amount of micro-bubbles, throw simultaneously and spread flocculation agent, impel dispersive free state algae to gather fast and on float to the water surface, the artificial formation that promotes wawter bloom is beneficial to follow-up mechanical removal.
The specific implementation method of pleuston plantation step is: directly plant pleuston in the waters that will administer, as duckweed, float etc. greatly, pleuston is a large amount of absorbed nitrogens, phosphorus in quick growth and breeding process, remove equipment with the mechanize of above-mentioned floater then, pleuston is cleared out of water body together with wawter bloom, thereby cut down nitrogen, phosphorus content.
The specific implementation method of aerating step is: independent aerator directly is set in the waters that will administer, described independent aerator can be one or more in atomizing aeration flexible pipe or water treatment field aerator commonly used such as blast aeration device, surperficial mechanical aerating apparatus, efflux aerator, the water jet aerating apparatus etc., also can adopt on the market incipient super-flow to make the stream aerator, just can realize two kinds of functions of water body fluidization and aeration synchronously with a kind of equipment.
The specific implementation method of killing the algae step is: directly throw in the waters that will administer and spread chemical algicide, ultrasonic wave perhaps directly is set in the waters that will administer kills the algae device.The common chemical algicide has various chlorinated products such as dioxide peroxide, clorox, chlorinated lime and ozone, copper sulfate etc., the also algicide that can use other to buy from the market.The using dosage of various algicides with the product description introduction and on the spot among a small circle test serve as according to determining that principle is not damage fishes and shrimps when killing algae.Copper sulfate and other copper ions algicide have bigger harm because cause in the water cupric ion residual easily to fishes and shrimps, generally do not advise using.
Claims (11)
1. the comprehensive processing method of an eutrophic water is characterized in that it comprises following steps:
The mechanical removal step of a, floater: remove floater on the water surface fast by the mechanize mode,, cut down nitrogen, phosphorus content in a large number by from water, taking a large amount of algae particles away comprising the algal bloom layer;
B, water body fluidization promote step: current directly are set in the waters build equipment, drive water body and flow, build circumstance of flowing water and destroy the excessive breeding of algae;
C, microbial film incubation step: microbe carrier directly is set in the waters, cultivates indigenous microorganism in a large number and form microbial film, utilize microbial film to dam and prey on algae and comprehensive degradation of contaminant.
2. the comprehensive processing method of eutrophic water according to claim 1 is characterized in that this comprehensive processing method is applied to the waters that the waters degree of depth is less than or equal to 0.5 meter.
3. the comprehensive processing method of eutrophic water according to claim 1 is characterized in that it can be that super-flow is made one or more in stream machine, propeller formula impeller, water pump or the fountain equipment that described current are built equipment.
4. the comprehensive processing method of eutrophic water according to claim 1 is characterized in that described microbe carrier can be one or more the mixture in rubble, grit, haydite, zeolite, gac or water treatment field various fillers commonly used such as elastic solid filler, ribbon formula filler, soft-filler, semi soft packing, the suspension ball filler etc.
5. the comprehensive processing method of eutrophic water according to claim 1, it is characterized in that increasing aerating step: independent aerator directly is set carries out aeration in the waters, perhaps merge, be provided with and a kind ofly can build the super-flow that current again can aeration and make the stream aerating apparatus with current construction equipment described in the above-mentioned b step.
6. the comprehensive processing method of eutrophic water according to claim 5 is characterized in that this comprehensive processing method is applied to the waters degree of depth greater than 0.5 meter waters.
7. the comprehensive processing method of eutrophic water according to claim 5 is characterized in that described independent aerator can be one or more in atomizing aeration flexible pipe or water treatment field aerator commonly used such as blast aeration device, surperficial mechanical aerating apparatus, efflux aerator, the water jet aerating apparatus etc.
8. the comprehensive processing method of eutrophic water according to claim 1 or 5, it is characterized in that increasing the air supporting step: micro-bubble generation device is set in water, and add flocculation agent, allow the algae of waters lower face float the upward water surface, and remove by above-mentioned a step.
9. the comprehensive processing method of eutrophic water according to claim 1 or 5, it is characterized in that increasing pleuston plantation step: at first water surface establishing in large scale pleuston, pleuston is a large amount of absorbed nitrogens, phosphorus in process of growth, and last pleuston is eliminated in above-mentioned steps a together with wawter bloom.
10. the comprehensive processing method of eutrophic water according to claim 1 or 5 is characterized in that increasing and kills the algae step: by adding chemical algicide or using ultrasonic wave to kill the algae device and eliminate algae.
11. the comprehensive processing method of eutrophic water according to claim 8 is characterized in that described micro-bubble generation device can be one or more in microporous aeration device, shearing micro-bubble generation device, pressurized dissolved air flotation device, atomizing aeration flexible pipe, the gas-liquid mixing pump etc.
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| CNB2005100929057A CN100336750C (en) | 2005-08-24 | 2005-08-24 | Eutrophication waters comprehensive treatment method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100400442C (en) * | 2006-07-21 | 2008-07-09 | 上海大学 | Closure material and treatment method for on-site stabilizing contaminated bottom mud |
| CN100412192C (en) * | 2006-09-28 | 2008-08-20 | 武汉益生泉生物科技开发有限责任公司 | Artificial biological film and preparation method |
| CN102030451A (en) * | 2010-10-22 | 2011-04-27 | 东南大学 | In-situ innocuous treatment plant and method for removing aged algae and algae residues through synergetic actions of ultrasonic and ozone |
| CN102745826A (en) * | 2012-07-05 | 2012-10-24 | 陈迪军 | Method for controlling alga pollution of water body at water intake of water plant |
| CN102849846A (en) * | 2011-06-30 | 2013-01-02 | 上海城市水资源开发利用国家工程中心有限公司 | Ecological regulation method of water quality of silt containing water source |
| CN106638458A (en) * | 2017-01-20 | 2017-05-10 | 广州三环保有限公司 | Lake treatment system |
| CN108002495A (en) * | 2017-11-20 | 2018-05-08 | 浙江绿维环境股份有限公司 | A kind of method for controlling river cyanobacteria problem |
| CN109851163A (en) * | 2019-01-21 | 2019-06-07 | 四川清和科技有限公司 | A kind of unhurried current small watershed removes algae algae control method |
| CN109928580A (en) * | 2019-04-11 | 2019-06-25 | 崔潇月 | A method of administering green alga undue growth |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160261C (en) * | 1999-06-23 | 2004-08-04 | 闵学书 | Biological chain method for treating ultrophication of water in lake |
| JP2001025327A (en) * | 1999-07-14 | 2001-01-30 | Ishikawajima Harima Heavy Ind Co Ltd | Device for purifying lake, marsh, or the like |
| CN1422951A (en) * | 2003-01-03 | 2003-06-11 | 清华大学 | Method for inhibiting algal growth using ultrasonic wave |
| CN1562809A (en) * | 2004-03-27 | 2005-01-12 | 中国科学院水生生物研究所 | Method for controlling water bloom of blue algae |
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2005
- 2005-08-24 CN CNB2005100929057A patent/CN100336750C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400442C (en) * | 2006-07-21 | 2008-07-09 | 上海大学 | Closure material and treatment method for on-site stabilizing contaminated bottom mud |
| CN100412192C (en) * | 2006-09-28 | 2008-08-20 | 武汉益生泉生物科技开发有限责任公司 | Artificial biological film and preparation method |
| CN102030451A (en) * | 2010-10-22 | 2011-04-27 | 东南大学 | In-situ innocuous treatment plant and method for removing aged algae and algae residues through synergetic actions of ultrasonic and ozone |
| CN102849846A (en) * | 2011-06-30 | 2013-01-02 | 上海城市水资源开发利用国家工程中心有限公司 | Ecological regulation method of water quality of silt containing water source |
| CN102745826A (en) * | 2012-07-05 | 2012-10-24 | 陈迪军 | Method for controlling alga pollution of water body at water intake of water plant |
| CN106638458A (en) * | 2017-01-20 | 2017-05-10 | 广州三环保有限公司 | Lake treatment system |
| CN108002495A (en) * | 2017-11-20 | 2018-05-08 | 浙江绿维环境股份有限公司 | A kind of method for controlling river cyanobacteria problem |
| CN109851163A (en) * | 2019-01-21 | 2019-06-07 | 四川清和科技有限公司 | A kind of unhurried current small watershed removes algae algae control method |
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