CN101224940A - River sediment in-situ remediation method - Google Patents
River sediment in-situ remediation method Download PDFInfo
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- CN101224940A CN101224940A CNA2007100264419A CN200710026441A CN101224940A CN 101224940 A CN101224940 A CN 101224940A CN A2007100264419 A CNA2007100264419 A CN A2007100264419A CN 200710026441 A CN200710026441 A CN 200710026441A CN 101224940 A CN101224940 A CN 101224940A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an in-situ remediation method of sediment in rivers, which comprises the steps that: (1) aboriginal microorganism liquid, biological growth stimulation liquid and biological detoxification liquid are fully mixed according to a weight ratio of 8-10: 0.8-1.5: 0.8-1.2; (2) a spray hopper gun or an injection method is adopted to inject the mixed liquid obtained in step (1) to the bottom of the sediment in rivers and the concentration of the aboriginal microorganism liquid is 0.010 multiplied by 10<-6>- 0.015 multiplied by 10<-6>g/m<3>; (3) after 5-7 days, the biological growth stimulation liquid is injected into the sediment in rivers each day and the weight of the biological growth stimulation liquid is the same with the weight of the mixed liquid in step (1); then the biological growth stimulation liquid is injected in a halved amount each day for 25-30 days. The method of the invention has good treatment and remediation effect, simple operation and little influence on normal municipal administration and the life of residents. A river flow aerobic self-purification ecological system established can keep persistent good state; good conditions are created for the establishment of the river flow aerobic self-purification ecological system so as to completely eliminate malodorous black river.
Description
Technical field
The present invention relates to administer the method for pollution, specifically, relate to a kind of river sediment in-situ remediation method.
Background technology
It is the universal phenomenon of the network of waterways, China city that the river course is deceived smelly.Because socio-economic development enters city river, lake etc. without trade effluent, the sanitary sewage effectively handled in a large number, causes water environment pollution, the river course is deceived smelly and lake, river eutrophication is China's Urban Water Environment universal phenomenon.According to investigations, the monitoring 138 sections, city of flowing through in, what meet II, III class water quality standard only accounts for 23%, what meet IV class water quality standard accounts for 19%, meets V class water quality standard 20%, super V class water quality standard account for 38%; 90% section, the city water body of flowing through does not meet the drinking water source standard; 75% city lake waters eutrophication; 50% urban groundwater is subjected to severe contamination.Urban Water Environment is the important elements of urban ecological system, and it is administered improving urban look, improves city taste and competitive power, safeguards that the public's health etc. has the meaning of particularly important.
Bed mud is the important component part of river channel ecology system, mainly is made up of inorganic mineral, organism and moving phase.The chemical constitution of bed mud and biota are formed bed mud ecology jointly, decision overlying water water quality; The surge capability of bed mud has determined the stability of water quality; Also determined the stability of overlying water algae phase; The microorganism active of bed mud determined river course Organic pollutants decomposition rate, thereby determined the detergent power of river water body.
The a large amount of biology of existence mainly is algae, benthonic invertebrates and bacterium in the bed mud.Algae mainly is a benthic algae, grows nonparasitically upon another plant at deposit surface number centimetre.Invertebrates mainly comprises protozoon, nematode, annelid, crustacean, mollusk and insect.Some animal lives in the bed mud all the time, and some is then alternately lived in bed mud and the water body.Animal is frequently motion in bed mud, causes that the bed mud interstitial water flows, sediment particles is stirred and the migration of material transforms, and is called biological agitaion.The bed mud animal is a food with microorganism and organism, is the important component part of bed mud microecosystem, and material cycle, flow of energy and the water quality of keeping bed mud and overlying water had vital role.Bacterium is to live in most important biology in the bed mud, state to bed mud has very important influence, bacterium plays a part " decomposer ", with the various organic pollutants in the various biological metabolic products of bed mud and water body, biological corpse remains, discharging river course decompose, mineralising becomes simple inorganics, for " producer ", " oxygen supply person " algal grown and metabolism in the river channel ecology system.Therefore, in the aerobic river course of cleaning, bed mud is to tie " storehouse " received with decomposing pollutant; " source " of overlying water inorganic nutrient salt is provided.In eutrophic water body, the pollutent that accumulates in the bed mud can discharge to the river course, becomes " source " of the aggravation pollution of river again.
Therefore, the improvement key of urban waste water is the reparation of bed mud.
Biological restoration mainly is to utilize naturally occurring or special cultured microorganism or other biology, under adjustable envrionment conditions with treatment technology poisonous, that noxious pollutant is converted into non-toxic substance.The natural purification process that exists many indigenous microorganisms to carry out in most of environment, because the existence of all unfavorable factors, this process speed is very slow.Decompose in order to accelerate organic pollutant, usually take some enhancements as electron acceptor(EA) be provided, increase nutritive salt such as N, P and micronutrient, means such as inoculation high-effective microorganism, tensio-active agent, strengthen and raising microorganism active and capacity of decomposition, this technology is exactly a bioremediation technology.From biological restoration in form, mainly contain original position reparation and dystopy reparation, the former refers to repair on the spot at the pollution scene, and the latter refers to the pollutent scene of shifting out is repaired.
Public works means and directly measures such as dosing and aeration in water such as cutting dirt, desilting are mainly adopted in the black smelly river regulation in China city at present.Their shortcoming is:
1, expense costliness is implemented slowly.Cut dirt and desilting and will transfer and coordinate several departments usually, cause the engineering cost height, the situation of making slow progress.
2, construction process is too loaded down with trivial details, and normal municipal administration and resident living are impacted.These processing means will employ big machinery the usually equipment and the vehicles can impact city management and resident living usually.
3, the weak point of holding time.Owing to adopt governing measure based on the physics desilting, there is not task restoration of the ecosystem function, particularly for can not effectively realizing cutting dirty a city or a river course, outskirts of a town, the desilting weak point of holding time later on.
Summary of the invention
The object of the present invention is to provide that a kind of cost is low, simple to operate, a kind of river sediment in-situ remediation method of high-efficient and lasting.
Bed mud is the important component part that the ecosystem is gushed in the river, bed mud plays very vital role to the overlying water purification of water quality, the bed mud organic content has determined the bed mud redox state, the bed mud redox state has determined bed mud to the detergent power of overlying water and the release of substrate sludge nutritive salt again, thereby the algae phase and the species diversity of decision overlying water, stability of ecosystem is gushed in the final decision river.Existing result of study shows, the key that urban waste water is administered is the bed mud reparation, the present invention adopts microbial preparation and distinctive method that bed mud is carried out the original position reparation, biological oxidation-reduction takes place on the bed mud top layer, form the zone of oxidation of one deck white, remove the organism in the zone of oxidation, stop bed mud to discharge nutritive salt to overlying water, gush aerobic foundation for the river and created very advantageous conditions from global net ecosystem, thereby in the black smelly situation of fundamentally eliminating river water burst body.
The present invention specifically is achieved in that
A kind of river sediment in-situ remediation method comprises the steps:
(1) indigenous microorganism liquid, biology are urged to give birth to liquid, biologic detoxication liquid by weight 8～10: 0.8～1.5: 0.8～1.2 is fully mixed;
(2) adopt the method for high-pressure spray gun or injection that step (1) gained mixed solution is injected the river bottom mud bottom, the concentration of indigenous microorganism liquid is 0.010 * 10
-6～0.015 * 10
-6G/m
3
After (3) 5～7 days, inject biology short give birth to liquid to river bottom mud every day, and the weight of biological short living liquid is identical with the mixed solution weight of step (1), and next the amount injection to reduce by half every day continues 25～30 days.
The described indigenous microorganism liquid of above-mentioned steps (1) refers to utilize river bottom mud, is matrix with the organic or inorganic nutritive substance, by the microbial inoculum of anaerobism or aerobic fermentation formation.The key of restorative procedure of the present invention is whole restorative procedure integral body, and is not strict to the requirement of bacterial classification, utilizes river bottom mud, adds common nutritive substance, and the microorganism of administering sewage in being usually used in of obtaining of state of nature bottom fermentation gets final product.The procurement cost of microorganism used therefor of the present invention is cheap, and resulting microbial inoculum mainly is the denitrification bacterial strain.
The short living liquid of above-mentioned steps (1) and the described biology of step (3) is humic acid solution.
The described biologic detoxication liquid of above-mentioned steps (1) is the compound inner complex, comprises chelated iron, Chelated Manganese or the chelating zinc of EDTA chelating.
After aforesaid method improvement, bed mud will float, and under the effect of indigenous microorganism, white zone of oxidation will appear rapidly in the bed mud top layer.
Compared with prior art, the present invention has following beneficial effect:
1. compare with traditional section dirt, desilting, cost of the present invention reduces greatly, and construction progress is quick, and it is good to administer repairing effect.
2. restorative procedure of the present invention is simple to operate, need not the equipment of employing big machinery, and need not a large amount of workmens, and is minimum to the influence that normal municipal administration and resident living cause, and especially surrounding environment impacted little.
3. restorative procedure of the present invention is different from traditional physico-chemical process, gushes aerobicly from global net ecosystem by setting up the river, makes its improvement can keep persistent good order and condition.
4. restorative procedure of the present invention has greatly improved the degradation capability of the biology of river bottom mud to pollutent, and gushes aerobic foundation from global net ecosystem for the river and created good condition, thus fundamentally eliminated black smelly.
Embodiment
Embodiment 1
Utilizing river bottom mud, is matrix with multiple organic and inorganic nutrient substance, forms indigenous microorganism liquid based on denitrifying bacteria by anaerobically fermenting.
With indigenous microorganism liquid, humic acid solution, chelated iron by weight 8: 1.0: 1.2 thorough mixing.
By high-pressure spray gun the gained mixed solution is pressed indigenous microorganism liquid 0.010 * 10
-6G/m
3Concentration directly inject bed mud bottom.
After five days, to inject humic acid solution by gushing bed mud to the river every day, the amount injection to reduce by half then, lasting 30 days by the sky with injected blended liquid phase consumption together.
Bed mud floats gradually after administering, and under the effect of indigenous microorganism, white zone of oxidation appears in the bed mud top layer.Remove the organism in the zone of oxidation, stop bed mud to discharge nutritive salt, gush aerobic foundation for the river and created very advantageous conditions from global net ecosystem to overlying water, thereby in the black smelly situation of fundamentally eliminating river water burst body.
Embodiment 2
Utilizing river bottom mud, is matrix with multiple organic and inorganic nutrient substance, forms indigenous microorganism liquid based on denitrifying bacteria by aerobic fermentation.
With indigenous microorganism liquid, humic acid solution, chelating zinc by weight 10: 0.8: 1.0 thorough mixing.
By high-pressure spray gun the gained mixed solution is pressed indigenous microorganism liquid 0.015 * 10
-6G/m
3Concentration directly inject bed mud bottom.
After seven days, to inject humic acid solution by gushing bed mud to the river every day, the amount injection to reduce by half then, lasting 25 days by the sky with injected blended liquid phase consumption together.
Bed mud floats gradually after administering, and under the effect of indigenous microorganism, white zone of oxidation appears in the bed mud top layer.Remove the organism in the zone of oxidation, stop bed mud to discharge nutritive salt, gush aerobic foundation for the river and created very advantageous conditions from global net ecosystem to overlying water, thereby in the black smelly situation of fundamentally eliminating river water burst body.
Under lab simulate the state of nature that gush in the river.By the improvement of embodiment 1 and embodiment 2, it is obvious that the repair of black and odorous water is gushed in the river, can make bed mud TOC drop to 9.6g/kg from 36.3g/kg, reduced by 3.8 times, and the G value has improved 3.3 times.
Claims (5)
1. a river sediment in-situ remediation method is characterized in that comprising the steps:
(1) indigenous microorganism liquid, biology are urged to give birth to liquid, biologic detoxication liquid by weight 8～10: 0.8～1.5: 0.8～1.2 is fully mixed;
(2) adopt the method for high-pressure spray gun or injection that step (1) gained mixed solution is injected the river bottom mud bottom, the concentration of indigenous microorganism liquid is 0.010 * 10
-6～0.015 * 10
-6G/m
3
After (3) 5～7 days, inject biology short give birth to liquid to river bottom mud every day, and the weight of biological short living liquid is identical with the weight that step (2) is injected mixed solution, and next the amount injection to reduce by half every day continues 25～30 days.
2. river sediment in-situ remediation method as claimed in claim 1 is characterized in that the described indigenous microorganism liquid of step (1) refers to utilize river bottom mud, is matrix with the organic or inorganic nutritive substance, by the microbial inoculum of anaerobism or aerobic fermentation formation.
3. river sediment in-situ remediation method as claimed in claim 1 is characterized in that the short living liquid of step (1) and the described biology of step (3) is humic acid solution.
4. river sediment in-situ remediation method as claimed in claim 1 is characterized in that the described biologic detoxication liquid of step (1) is the compound inner complex.
5. river sediment in-situ remediation method as claimed in claim 4 is characterized in that described biologic detoxication liquid is chelated iron, Chelated Manganese or chelating zinc.
Priority Applications (1)
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|---|---|---|---|
| CNA2007100264419A CN101224940A (en) | 2007-01-19 | 2007-01-19 | River sediment in-situ remediation method |
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|---|---|---|---|
| CNA2007100264419A CN101224940A (en) | 2007-01-19 | 2007-01-19 | River sediment in-situ remediation method |
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| CN101224940A true CN101224940A (en) | 2008-07-23 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102246718A (en) * | 2011-04-07 | 2011-11-23 | 中国水产科学研究院渔业机械仪器研究所 | Resourceful treatment system of pond sediments |
| CN101591131B (en) * | 2009-05-21 | 2011-11-30 | 东莞圣源环保科技有限公司 | Method for treating bottom sediment in lake |
| CN102557365A (en) * | 2011-12-30 | 2012-07-11 | 天津大学 | In-situ chemical, biological and ecologic cooperative repair method of polluted bottom mud |
| CN102674646A (en) * | 2012-05-21 | 2012-09-19 | 上海海洋大学 | In-situ restoring method of bottom mud polluted by surface water body |
| CN105347504A (en) * | 2015-11-03 | 2016-02-24 | 新疆德蓝股份有限公司 | Bio-stimulant and preparation method thereof |
| CN106116085A (en) * | 2016-08-11 | 2016-11-16 | 湖北凌卓生物工程有限公司 | A kind of pollution of river sediment in-situ high-performance bio processes and method of disposal |
| CN108128995A (en) * | 2018-01-31 | 2018-06-08 | 北京万润华夏环境技术有限公司 | A kind of bed mud improvement and abatement technology in situ |
| 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 |
| CN108793655A (en) * | 2018-07-04 | 2018-11-13 | 深圳市睿洋生态环境有限公司 | It is a kind of efficiently to disappear silt flora and compound indigenous microorganism in situ disappears deposit technique |
| CN108947158A (en) * | 2018-07-25 | 2018-12-07 | 佛山市石中人生物科技有限公司 | The method of microorganism formulation resolution black-odor riverway bed mud |
| CN108977378A (en) * | 2018-07-25 | 2018-12-11 | 重庆沐联环境工程有限公司 | The microorganism formulation of black-odor riverway sludge handling |
| CN109231740A (en) * | 2018-10-11 | 2019-01-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of river and lake heavily contaminated sediment in-situ remediation method |
| CN109305744A (en) * | 2018-11-27 | 2019-02-05 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of black and odorous water biological renovation method and system |
| CN109824140A (en) * | 2018-10-18 | 2019-05-31 | 北京博诚立新环境科技股份有限公司 | A kind of underground water home position strengthening biological renovation method |
| CN110776225A (en) * | 2019-11-18 | 2020-02-11 | 深圳市承亿生物科技有限公司 | Method for in-situ degradation of river sediment by biological enzyme |
| CN114988657A (en) * | 2022-05-12 | 2022-09-02 | 上海园林（集团）有限公司 | Black and odorous river sediment in-situ remediation device and remediation method based on microbial immobilization technology |
-
2007
- 2007-01-19 CN CNA2007100264419A patent/CN101224940A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591131B (en) * | 2009-05-21 | 2011-11-30 | 东莞圣源环保科技有限公司 | Method for treating bottom sediment in lake |
| CN102246718A (en) * | 2011-04-07 | 2011-11-23 | 中国水产科学研究院渔业机械仪器研究所 | Resourceful treatment system of pond sediments |
| CN102557365A (en) * | 2011-12-30 | 2012-07-11 | 天津大学 | In-situ chemical, biological and ecologic cooperative repair method of polluted bottom mud |
| CN102674646A (en) * | 2012-05-21 | 2012-09-19 | 上海海洋大学 | In-situ restoring method of bottom mud polluted by surface water body |
| CN105347504A (en) * | 2015-11-03 | 2016-02-24 | 新疆德蓝股份有限公司 | Bio-stimulant and preparation method thereof |
| CN105347504B (en) * | 2015-11-03 | 2018-05-08 | 德蓝水技术股份有限公司 | A kind of biological growth promoter and preparation method |
| CN106116085A (en) * | 2016-08-11 | 2016-11-16 | 湖北凌卓生物工程有限公司 | A kind of pollution of river sediment in-situ high-performance bio processes and method of disposal |
| CN108128995A (en) * | 2018-01-31 | 2018-06-08 | 北京万润华夏环境技术有限公司 | A kind of bed mud improvement and abatement technology in situ |
| 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 |
| CN108793655A (en) * | 2018-07-04 | 2018-11-13 | 深圳市睿洋生态环境有限公司 | It is a kind of efficiently to disappear silt flora and compound indigenous microorganism in situ disappears deposit technique |
| CN108947158A (en) * | 2018-07-25 | 2018-12-07 | 佛山市石中人生物科技有限公司 | The method of microorganism formulation resolution black-odor riverway bed mud |
| CN108977378A (en) * | 2018-07-25 | 2018-12-11 | 重庆沐联环境工程有限公司 | The microorganism formulation of black-odor riverway sludge handling |
| CN109231740A (en) * | 2018-10-11 | 2019-01-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of river and lake heavily contaminated sediment in-situ remediation method |
| CN109824140A (en) * | 2018-10-18 | 2019-05-31 | 北京博诚立新环境科技股份有限公司 | A kind of underground water home position strengthening biological renovation method |
| CN109305744A (en) * | 2018-11-27 | 2019-02-05 | 上海城市水资源开发利用国家工程中心有限公司 | A kind of black and odorous water biological renovation method and system |
| CN110776225A (en) * | 2019-11-18 | 2020-02-11 | 深圳市承亿生物科技有限公司 | Method for in-situ degradation of river sediment by biological enzyme |
| CN114988657A (en) * | 2022-05-12 | 2022-09-02 | 上海园林（集团）有限公司 | Black and odorous river sediment in-situ remediation device and remediation method based on microbial immobilization technology |
| CN114988657B (en) * | 2022-05-12 | 2023-04-11 | 上海园林（集团）有限公司 | Black and odorous river sediment in-situ remediation device and remediation method based on microbial immobilization technology |
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