CN102259984A - Method for remedying reclaimed water landscape river polluted water body by oxygen-enriching biological technology and application thereof - Google Patents
Method for remedying reclaimed water landscape river polluted water body by oxygen-enriching biological technology and application thereof Download PDFInfo
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- CN102259984A CN102259984A CN2011101136861A CN201110113686A CN102259984A CN 102259984 A CN102259984 A CN 102259984A CN 2011101136861 A CN2011101136861 A CN 2011101136861A CN 201110113686 A CN201110113686 A CN 201110113686A CN 102259984 A CN102259984 A CN 102259984A
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Abstract
The invention relates to a method for remedying a reclaimed water landscape river polluted water body by an oxygen-enriching biological technology and application thereof, and particularly relates to a method for remedying the reclaimed water landscape river polluted water body by jointly utilizing submersible plug-flow aeration and artificial water plants. By using the method, the water quality of the remedied river polluted water is improved significantly. The method is characterized in that: the spacing of submersible plug-flow aerators is 20 m, each submersible plug-flow aerator has the service area being about 300 m<2> and aeration capacity being 1.6-1.8 kgO2/h, the utilization rate of oxygen in the river water is more than 20-25% and the running time of each submersible plug-flow aerator is 5-8 hours per day; and the artificial water plants are made of polymers, have specific surface area being 160 m<2>/m and are fixed at the river bottom vertically to water flow, and a microorganism film is formed by selecting dominant microorganisms and providing a good adhesion carrier for the microorganisms, so that the artificial water plants have bio-contact oxidation effects; and the microorganism film forming time is 15 days at the temperature less than 4 DEG C, 10 days at the temperature of 4-15 DEG C, 7 days at the temperature of 15-25 DEG C and 5 days at the temperature higher than 25 DEG C. The method for remedying the reclaimed water landscape river polluted water body has the advantages of lower cost, large practical application value and short remediation time, and combines the advantages of aeration remediation and biological remediation; and by using the method, the water quality of the reclaimed water landscape river polluted water body is improved within a short time and black and odorous water is eliminated.
Description
Technical field
The present invention relates to a kind of method of oxygen enrichment biologic treating technique reparative regeneration water landscape pollution of river water body, specifically a kind of method of utilizing diving plug-flow aeration and artificial pasture and water associating reparative regeneration water landscape pollution of river water body, adopt this method to repair pollution of river water body after water quality significantly improve.
Background technology
Pollution and destruction along with Increase of population, environment; the water resources worsening shortages; cause the crisis of ecotope water, the construction of restriction Urban Water Environment System, unconventional water utilization such as reuse water becomes one of effective way that solves ecological water shortage problem in landscape water body.It is little that yet the river course landscape water body has a water surface area, mobile relatively poor, the characteristics that self-purification capacity is more weak, a certain amount of pollutent that contains in the reuse water is constantly accumulation in the river course, add the input of ecological water supplement deficiency and external contaminant matter, As time goes on, finally cause river water quality to worsen and body eutrophication, water body is black smelly.Therefore, for the urban water-body that uses reuse water as the water source, water quality keeps seeming particularly important that how being repaired cost-effectively and controlling becomes current field of environment protection one big hot technology.
In recent years, various physics, chemistry and biotechnology are widely used in the reparation of polluted-water, yet that each method all exists is restricted, and the combination of a plurality of effective ways becomes the development trend that polluted-water is repaired.The restorative procedure of having studied at present comprises mainly that artificial aeration and waterpower circulation, bed mud dredging, bed mud cover, diversion is removed contamination, coagulating sedimentation, dosing air supporting, microorganism are repaired, aquatic animals and plants reparation and ecological engineering etc., wherein studies morely to biological restoration.Nitrogen in the reuse water Landscape River polluted-water, phosphorus content are higher, studies have shown that, utilize technology such as aeration that it has been repaired effect preferably.
Although artificial aeration's method has certain repairing effect to reuse water Landscape River polluted-water, also there is certain limitation in this method in the counterweight polluted-water, has only by the associating with other restorative procedures just can reach comparatively ideal repairing effect.Biological restoration is simple, the efficient and widely applicable polluted-water recovery technique of a kind of technology.As very potential biological restoration approach, microorganism is repaired and phytoremediation is receiving increasing concern.Microorganism mainly is by action of microorganisms in the water body to the biological restoration effect of polluted-water, makes the pollutent original position be degraded into H
2O, CO
2Or change into other innoxious substances, and absorb pollutents such as nitrogen phosphorus.Can come certain specific pollutants in the degradation water by directly adding the dominant bacterial classification, thereby also can utilize additive method to promote the growth performance degradation function of indigenous microorganism to water body.But utilize plant polluted-water reparation to be subjected to all multifactor influences such as vegetation type, polluted-water character, temperature, artificial pasture and water are then unrestricted.The domestic and international at present research to restorative procedure mainly concentrates on the repairing effect of single aspect, and utilizes oxygen-enriched aeration-still rarely seen report of artificial pasture and water associating reparative regeneration water landscape pollution of river water body.Oxygen-enriched aeration-artificial pasture and water associating reparative regeneration water landscape pollution of river water body has the following advantages: 1. artificial pasture and water are not limited by environmental factors, and long service life can provide good carrier for microorganism than bigger serface; 2. submersible plugflow aeration machine can provide sufficient oxygen source for artificial pasture and water surface microorganism, activates indigenous microorganism, saves the bacterium expense of throwing; 3. owing to stronger stirring and the water lift function of aerator, can break the vertical demixing phenomenon of static water body, change the extreme ununiformity of water body dissolved oxygen vertical distribution, destroy the enriched layer of blue-green algae, add the repair of microorganism, thereby the generation of control " algal tufa " phenomenon is eliminated black smelly.
Summary of the invention
The object of the present invention is to provide a kind of oxygen enrichment biologic treating technique restorative procedure of reuse water Landscape River polluted-water of economical and efficient.To achieve these goals, the present invention has adopted the method for diving plug-flow oxygen-enriched aeration and artificial pasture and water associating reparative regeneration water landscape pollution of river water body, 6 submersible plugflow aeration machines are set altogether, every submersible plugflow aeration machine spacing 20m, service area 300m along the 100m river course
2, every oxygen transfer rate is 1.6-1.8kgO
2/ h makes that the coefficient of oxygen utilization in the sewage reaches more than the 20-25%, keeps more than the oxygen in water 15mg/L.Be 5-8 hour every day working time, and summer and autumn are controlled at 8 hours every days, and be controlled at about 5 hours every days winter in spring.Aeration can increase the oxygen level of water body, improves water pH value, promotes blue-green algae to transform to the little green alga of toxicity, and the passivation bed mud, stops the release of phosphorus in the bed mud, and the artificial pasture and water surface microorganism that is provided with for this place provides sufficient oxygen source, promotes microorganism growth.
The water body that oxygen-rich treated is crossed adopts the microbial film reparation again, and artificial pasture and water are a kind of high molecular polymer biofilm carrier, specific surface area 160m
2/ m, Transverse to the flow direction is fixed on the bottom, river course, rely on itself huge specific surface area and strong polar group to come the selective advantage micropopulation, for microorganism provides the good carrier that adheres to, and at carrier surface formation microbial film, have the bio-contact oxidation effect, microorganism colonization lasts:＜4 ℃, and 15 days; 4～15 ℃, 10 days; 15～25 ℃, 7 days;＞25 ℃, 5 days.Artificial pasture and water can solve the problem that in eutrophic water body waterplant is difficult to form stable vegetation, and result of study shows, lays artificial pasture and water and can improve water transparency, suppresses algal grown.Oxygen-enriched aeration is united the reparation of artificial pasture and water technology to reuse water Landscape River polluted-water, obviously being better than independent aeration reparation and microorganism economically repairs, sufficient oxygen level can activate indigenous dominant bacteria, can suitably reduce aeration time again after the biofilm, saves running cost.
Beneficial effect of the present invention
1, the present invention can effectively improve reuse water Landscape River polluted-water water quality, suppresses the eutrophication phenomenon.
2, to handle the expense of reuse water Landscape River polluted-water lower in the present invention, and actual application value is arranged.
3, the reparative regeneration water landscape pollution of river water body time of the present invention shorter, combine the advantage of aeration reparation and biological restoration, improve reuse water Landscape River polluted-water water quality at short notice, eliminate black smelly.
4, the used artificial pasture and water of the present invention can solve the problem that in eutrophic water body waterplant is difficult to form stable vegetation.
5, the present invention is simple in structure, and associate member is few, and is stable, do not need professional's maintenance management, long service life.
Embodiment
Embodiment 1 oxygen-enriched aeration is united artificial pasture and water method reparation sloot rainfall pumping station and is gone into river
One sloot adopts unconventional water sources such as reuse water, rain flood as ecological water, the precipitation that Storm Sewer Network is collected enters Landscape River by pumping plant, owing to may exist sewage to seal in the Storm Sewer Network phenomenon, add rainfall runoff and can bring a large number of nutrients into, the landscape water body flowability is poor again, the transmission of pollutent, diffusibility are also relatively poor, near this river course Pollutant levels rainfall pumping station are higher, water quality is relatively poor relatively, improves water quality so the oxygen-enriched aeration of river course employing is nearby united artificial pasture and water method.
Along near the 100m river course pumping plant 6 submersible plugflow aeration machines are set altogether, every submersible plugflow aeration machine spacing 20m, service area 300m
2, the about 2m of the depth of water, every oxygen transfer rate is 1.6～1.8kgO
2/ h, the coefficient of oxygen utilization 25% in the river course water.Be 5～8 hours every days working time, and summer and autumn are controlled at 8 hours every days, is controlled at 5 hours every days winter in spring.Artificial pasture and water adopt high molecular polymer to make, and this biofilm carrier has very high specific surface area (160m
2/ m), Transverse to the flow direction is fixed on the bottom, river course, rely on itself huge specific surface area and strong polar group to come the selective advantage micropopulation, for microorganism provides the good carrier that adheres to, and at carrier surface formation microbial film, have the bio-contact oxidation effect, microorganism colonization lasts:＜4 ℃, and 15 days; 4～15 ℃, 10 days; 15～25 ℃, 7 days;＞25 ℃, 5 days.
For understanding repairing effect, at this place long-term monitoring point is set, monitor 13 indexs altogether, be respectively pH, chemical oxygen demand (COD), muriate, ammonia nitrogen, total salt, total phosphorus, anion surfactant, total hardness (with CaCO
3Meter), total nitrogen, permanganate index, fluorochemical, dissolved oxygen, water temperature.Experimental result shows that oxygen-enriched aeration unites artificial pasture and water and repair and can effectively improve reuse water Landscape River polluted-water water quality, suppresses the eutrophication phenomenon, and it is black smelly to have eliminated water body.The landscape water body quality reaches " water environment quality standard " (GB3838-2002) more than the V class standard.
Claims (1)
1. oxygen enrichment biologic treating technique reparative regeneration water landscape pollution of river water body technology and application is characterized in that this technology is the associating repair system of oxygen-enriched aeration method and high aerobic biological process for treating; Adopt the oxygen-enriched aeration device in river water body, to inject competent oxygen, keep utilizing artificial pasture and water to provide the good carrier that adheres to more than the oxygen in water 15mg/L for indigenous microorganism; The oxygen-enriched aeration device adopts submersible plugflow aeration machine, form by special-duty electric motor, impeller, induction chamber, air suction pipe, privacy protection switch, utilize axial impellent that the impeller high speed rotating produces and whipping force radially, inhaled air is blended and gas-vapor mix is spurted into water body, collection aeration, stirring, mixing, plug-flow are one, simple in structure, volume is light and handy, stable, does not need professional's maintenance management; Along the river road 100m is provided with 6 submersible plugflow aeration machines, and every interstation is apart from 20m, service area 300m
2, oxygen transfer rate is 1.6-1.8kgO
2/ h, the coefficient of oxygen utilization 20-25% in the river course water; Submersible plugflow aeration machine has than strong mixing and water lift function, break the vertical demixing phenomenon of static water body, change the extreme ununiformity of river water body dissolved oxygen vertical distribution, sufficient oxygen is provided for the microorganism of artificial pasture and water surface attachment, activate the enriched layer that indigenous microorganism destroys blue-green algae, the control algal grown is eliminated black smelly; Every submersible plugflow aeration machine early, each operation in evening once, be 5-8 hour every day every working time, is controlled at 8 hours every days in summer, autumn, is controlled at 5 hours every days in spring, winter; Artificial pasture and water are a kind of high molecular polymer biofilm carrier, specific surface area 160m
2/ m, Transverse to the flow direction are fixed on river course bottom, rely on itself huge specific surface area and strong polar group to come the selective advantage micropopulation, for microorganism provides the good carrier that adheres to, and form microbial film at carrier surface, have the bio-contact oxidation effect; The artificial pasture and water biofilm time: winter, spring low temperature＜4 ℃, 15 days; 4～15 ℃, 10 days; 15～25 ℃ of summer, autumns, 7 days;＞25 ℃, 5 days; Artificial pasture and water solve the problem that waterplant is difficult to form stable vegetation in eutrophic water body, improve water transparency greatly, suppress algal grown, eliminate black smelly phenomenon of river water body and river training water quality.
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| CN2011101136861A CN102259984A (en) | 2011-05-04 | 2011-05-04 | Method for remedying reclaimed water landscape river polluted water body by oxygen-enriching biological technology and application thereof |
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| CN2011101136861A CN102259984A (en) | 2011-05-04 | 2011-05-04 | Method for remedying reclaimed water landscape river polluted water body by oxygen-enriching biological technology and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491535A (en) * | 2011-12-15 | 2012-06-13 | 南京大学 | Method using sulfate-reducing bacteria for demineralization of lakes and rivers |
| CN102701462A (en) * | 2012-06-11 | 2012-10-03 | 佛山市玉凰生态环境科技有限公司 | Multi-element ecological balance biological remediation method |
| CN103265145A (en) * | 2013-05-17 | 2013-08-28 | 中国科学院南京土壤研究所 | Method for purifying river water with low load and low temperature by using natural biofilm reactor |
| CN106882878A (en) * | 2017-04-25 | 2017-06-23 | 临沂大学 | A kind of wetland purification system for Winter protection |
| CN106892530A (en) * | 2015-12-20 | 2017-06-27 | 天津市兴荣非织造布有限公司 | A kind of method of Landscape River eutrophication water complex repairation |
-
2011
- 2011-05-04 CN CN2011101136861A patent/CN102259984A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491535A (en) * | 2011-12-15 | 2012-06-13 | 南京大学 | Method using sulfate-reducing bacteria for demineralization of lakes and rivers |
| CN102701462A (en) * | 2012-06-11 | 2012-10-03 | 佛山市玉凰生态环境科技有限公司 | Multi-element ecological balance biological remediation method |
| CN102701462B (en) * | 2012-06-11 | 2014-02-26 | 佛山市玉凰生态环境科技有限公司 | Multi-element ecological balance biological remediation method |
| CN103265145A (en) * | 2013-05-17 | 2013-08-28 | 中国科学院南京土壤研究所 | Method for purifying river water with low load and low temperature by using natural biofilm reactor |
| CN103265145B (en) * | 2013-05-17 | 2014-05-07 | 中国科学院南京土壤研究所 | Method for purifying river water with low load and low temperature by using natural biofilm reactor |
| CN106892530A (en) * | 2015-12-20 | 2017-06-27 | 天津市兴荣非织造布有限公司 | A kind of method of Landscape River eutrophication water complex repairation |
| CN106882878A (en) * | 2017-04-25 | 2017-06-23 | 临沂大学 | A kind of wetland purification system for Winter protection |
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Application publication date: 20111130 |