CN102689982A - Carbon source carrier filler for repairing nitrate pollution of underground water - Google Patents
Carbon source carrier filler for repairing nitrate pollution of underground water Download PDFInfo
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- CN102689982A CN102689982A CN2011100675535A CN201110067553A CN102689982A CN 102689982 A CN102689982 A CN 102689982A CN 2011100675535 A CN2011100675535 A CN 2011100675535A CN 201110067553 A CN201110067553 A CN 201110067553A CN 102689982 A CN102689982 A CN 102689982A
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- carbon source
- carrier filler
- source carrier
- coating
- azotate pollution
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- Y02W10/12—
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- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a carbon source carrier filler for repairing nitrate pollution of underground water. The carbon source carrier filler is formed by cladding biological ceramsite surface with an organic carbon source coating. The coating of the carbon source carrier filler comprises the following main components of: by weight, 10-50% of a natural carbon source material powder, 10-20% of a solvent, 1-5% of trace element, 10% of animal glue, 0-5% of a deoxidant, 0-5% of a pH conditioning agent and 0-2% of a surfactant. The carbon source carrier filler prepared in the invention has good mechanical properties and biological endophilicity, can achieve the aim of long-acting sustained release of carbon source, is suitable for underground water in-situ and ex-situ remediation technologies, and can be used to effectively avoid the secondary pollution problem of additional carbon sources.
Description
Technical field
The present invention relates to a kind of carbon source carrier filler that groundwater azotate pollution is repaired that is used for, belong to groundwater pollution recovery technique field.
Background technology
68% be underground water in the drinkable water source of fresh water on the earth, the population that accounts for the world 50% is the drinking water source with underground water.Yet, no matter be, because the discharging and the seepage of sewage and trade effluent in industrially developed country or developing country; Using of a large amount of chemical fertilizer in Rural areas and agricultural chemicals; Ooze under the leaching of soiled litter, solid waste, atmospheric nitrogen oxygen compound dried wet deposition, and sewage unreasonable recharged etc.; Cause the nitrate in groundwater nitrogen concentration in rising trend, and become an important environmental problem.
From preceding, the restorative procedure of groundwater azotate pollution mainly contains physics, chemistry and bioremediation technology etc.Different according to the mechanism of action, can be divided into reverse osmosis method, electroosmose process, ion exchange method, membrane separation process, electrolytic process, catalytic reduction method, biological denitrification method etc.Though technology is numerous; But these methods also respectively have limitation in practical application: physical chemistry is handled can not be converted into innoxious substance with nitrate salt; Have secondary pollution, and efficient is low, poor selectivity, investment high, process cost is high, suitable large-area groundwater azotate pollution reparation.
See from thorough elimination nitrate in groundwater pollution and two aspects of reduction denitration cost; The biological denitrification method is most economical, the effective means that has come into operation at present; Its weak point is to lack the required organic carbon source of anaerobion growth in the underground water, and the dissolved oxygen that contains in the water makes groundwater environment be difficult to reach anaerobic condition; Like additional carbon, often contain biosolids and deliquescent organism in the water outlet.Therefore, a kind of economy of active demand, efficient, can avoid the carbon source carrier of secondary pollution to be used for the underground water bioremediation technology.
Summary of the invention:
To the problems referred to above, the invention discloses a kind of carbon source carrier filler that groundwater azotate pollution is repaired that is used for.This carbon source carrier filler coats the organic carbon source coating by the biological ceramic particle surface and constitutes; Can be in groundwater azotate pollution original position or heterotopic biological recovery technique; Be the mikrobe long-acting slow-release carbon source trace element required with growth; Simultaneously can catch the dissolved oxygen in the water, improve denitrification efficient, avoid the secondary pollution of outlet water organic substance.
Described carbon source carrier filler coatings main ingredient quality proportioning is following:
The present invention mainly is made up of biological ceramic particle, natural carbon source material powder, gelatin, solvent, trace element, oxygen scavenger and pH regulator agent.Wherein natural solid carbon source powder can be one or more in glucose, starch based, Mierocrystalline cellulose, lignin, the chitin kind material; Solvent can be water or N; Trace element is MgSO
47H
2O, Fe
2(SO
4)
3, MnSO
4H
2O and ZnSO
4H
2The mixture of O; Oxygen scavenger can be one or more of saccharosonic acid, SODIUM ISOVITAMIN C, sodium hypophosphite, S-WAT or ferrous sulfate, improves denitrification efficient; The pH regulator agent can be hydrochloric acid, sodium hydroxide, acetate, Sodium phosphate, dibasic etc.
The coating method of carbon source carrier filler of the present invention is that the solution of coated material is sent in the high-pressure injector; Mix the back with the vaporific prilling tower that sprays into pressurized air; Mix with biological ceramic particle in the tower, form coating on the biological ceramic particle surface, again with coatingsurface solvent evaporate to dryness; Coating is done solid oxidation, forms the carbon source carrier filler.
The present invention has following several advantage:
(1) carbon source carrier of the present invention can provide the slowly-releasing carbon source for denitrifying bacterium, has avoided the loss of carbon source under hydraulic action, has solved the problem of denitrification process carbon source shortage and the secondary pollution problem of additional carbon
(2) owing to added oxygen scavenger and trace element in the filler,, increased living weight, improved denitrification efficient for denitrifying bacterium provides anaerobic environment the trace element required with growth.
(3) because filler is skeleton with the biological ceramic particle; Have good microbe carrier performance, along with organic consumption in the coating, filling surface forms micro-pore; Improved the specific surface area of filler particles; The apposition growth that helps mikrobe has increased the living weight of filling surface, thereby obtains better treatment effect.
Embodiment:
For understanding the present invention better, below in conjunction with embodiment the present invention is further explained, but the scope that the present invention requires to protect is not limited to the scope that embodiment sets forth.
Coated component:
Hemp fibre powder: 55%; Animal skin glue: 20%; Water: 15%; Trace element mixed solution: 3%; SODIUM ISOVITAMIN C: 3%; Oxygen scavenger: 2%; PH regulator agent: 2%.
Production technique:
The coating material solution for preparing is delivered to solution tank, and with being pumped to header tank, solution leans on high potential difference to flow out from header tank, divides and delivers to each injector again.0.3 the pressurized air of～0.5MPa is sent into injector from Outer Tube, through nozzle ejection, produces suction function; Coating material solution is sucked injector, after the gas-liquid won ton closes, spray in the prilling tower with spray form; The biological ceramic particle that falls with prilling tower top contacts, and forms coating on the haydite surface, by means of the heat of haydite own; Moisture evaporation in the coating solution is fallen, and coating is done solid oxidation, accomplishes spraying coating process.
Prepared carbon source carrier filler is packed in the synthetic glass post of internal diameter 60mm, high 50mm; Form biological filter post; The column bottom links to each other with constant flow pump, and constant flow pump is the potassium nitrate solution of 50mg/L with the constant rate of 364uL/min to the reaction column implantation concentration, carries out denitrification and releases the carbon PT.The reaction unit operation is during three months, and the clearance of nitrate salt maintains between 75～90%, and nitrite concentration is lower than 0.02mg/L, and carrier structure is stable, goes out clarification of water, and pH is between 7.4～7.8.
Claims (7)
1. one kind is used for the carbon source carrier filler that groundwater azotate pollution is repaired, and it is characterized in that: described carbon source carrier filler coats the organic carbon source coating by the biological ceramic particle surface and constitutes; Described carbon source carrier filler coatings main ingredient quality proportioning is following:
2. the carbon source carrier filler that is used for the groundwater azotate pollution reparation according to claim 1, it is characterized in that: said natural solid carbon source powder can be one or more in glucose, starch based, Mierocrystalline cellulose, lignin, the chitin kind material.
3. the carbon source carrier filler that is used for the groundwater azotate pollution reparation according to claim 1, it is characterized in that: said solvent can be water or N.
4. the carbon source carrier filler that is used for the groundwater azotate pollution reparation according to claim 1, it is characterized in that: said trace element is MgSO
47H
2O, Fe
2(SO
4)
3, MnSO
4H
2O and ZnSO
4H
2The mixture of O.
5. the carbon source carrier filler that is used for the groundwater azotate pollution reparation according to claim 1, it is characterized in that: said oxygen scavenger can be one or more of saccharosonic acid, SODIUM ISOVITAMIN C, sodium hypophosphite, S-WAT or ferrous sulfate.
6. the carbon source carrier filler that is used for the groundwater azotate pollution reparation according to claim 1, it is characterized in that: described pH regulator agent can be hydrochloric acid, sodium hydroxide, acetate, Sodium phosphate, dibasic etc.
7. the coating method that is used for the carbon source carrier filler of groundwater azotate pollution reparation according to claim 1; It is characterized in that: the solution of coated material is sent in the high-pressure injector, mixed the back with pressurized air, mix with biological ceramic particle in the tower with the vaporific prilling tower that sprays into; Form coating on the haydite surface; With coatingsurface solvent evaporate to dryness, coating is done solid oxidation, forms the carbon source carrier filler again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100675535A CN102689982A (en) | 2011-03-21 | 2011-03-21 | Carbon source carrier filler for repairing nitrate pollution of underground water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100675535A CN102689982A (en) | 2011-03-21 | 2011-03-21 | Carbon source carrier filler for repairing nitrate pollution of underground water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102689982A true CN102689982A (en) | 2012-09-26 |
Family
ID=46855741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100675535A Pending CN102689982A (en) | 2011-03-21 | 2011-03-21 | Carbon source carrier filler for repairing nitrate pollution of underground water |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803704A (en) * | 2014-03-03 | 2014-05-21 | 中国环境科学研究院 | Permeable reaction medium material for nitrate pollution of underground water |
| CN104058508A (en) * | 2014-07-10 | 2014-09-24 | 上海埃格环保科技有限公司 | Water treatment method for purifying sewage by use of microorganisms |
| CN104894097A (en) * | 2015-05-09 | 2015-09-09 | 浙江省农业科学院 | Long-acting water-purifying bacterium capsule and preparation method thereof |
| CN104909463A (en) * | 2015-05-09 | 2015-09-16 | 浙江省农业科学院 | Core-shell structured water purification bacterium capsule and preparation method thereof |
| CN105036322A (en) * | 2015-07-22 | 2015-11-11 | 中山环保产业股份有限公司 | Denitrification suspended carrier |
| CN105347515A (en) * | 2015-12-09 | 2016-02-24 | 安徽师范大学 | Packing medium for permeable reactive barrier and application of packing medium to aspect of in-situ treatment on underground water nitrate pollution and method thereof |
| CN105481094A (en) * | 2016-01-20 | 2016-04-13 | 无锡国联环保能源集团有限公司 | Ceramic filler for wastewater treatment, production method for ceramic filler and wastewater treatment device |
| CN106957109A (en) * | 2017-03-10 | 2017-07-18 | 同济大学 | Have the level stream biomembrane reaction apparatus of sustained release basicity and carbon source function concurrently |
| CN107935163A (en) * | 2017-11-02 | 2018-04-20 | 北京博汇特环保科技股份有限公司 | Carbon source solution from agriculture derivative and its preparation method and application |
| CN107935202A (en) * | 2017-12-21 | 2018-04-20 | 环境保护部华南环境科学研究所 | A kind of biodegradable slow release carbon source filler and preparation method thereof |
| CN109607778A (en) * | 2019-01-31 | 2019-04-12 | 北京潮白环保科技股份有限公司 | The processing method of the carrier of nitrate in a kind of removal water body |
| CN111099722A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Composition for promoting denitrification and application thereof |
| US11034932B2 (en) | 2016-11-29 | 2021-06-15 | China Petroleum & Chemical Corporation | Composition capable of promoting the growth of denitrifying microorganisms and uses thereof |
| CN114988571A (en) * | 2022-07-07 | 2022-09-02 | 嘉兴学院 | Carbon source carrier filler for denitrifying bacteria and preparation method |
| CN115028261A (en) * | 2022-06-13 | 2022-09-09 | 浙江中诚环境研究院有限公司 | Sulfur autotrophic denitrification filler and preparation method thereof |
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| CN101948166A (en) * | 2010-09-06 | 2011-01-19 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Preparation method of modified biologically-activated filter fillings |
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| WO1998050177A1 (en) * | 1997-05-09 | 1998-11-12 | University Of New Mexico | In situ denitrification |
| CN1648070A (en) * | 2005-01-07 | 2005-08-03 | 清华大学 | Method for preparing controlled release high molecular carbon source material for biological method to treat water |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803704B (en) * | 2014-03-03 | 2015-05-27 | 中国环境科学研究院 | Permeable reaction medium material for nitrate pollution of underground water |
| CN103803704A (en) * | 2014-03-03 | 2014-05-21 | 中国环境科学研究院 | Permeable reaction medium material for nitrate pollution of underground water |
| CN104058508B (en) * | 2014-07-10 | 2016-06-29 | 上海埃格环保科技有限公司 | A kind of method for treating water utilizing microorganism to carry out sewage purification |
| CN104058508A (en) * | 2014-07-10 | 2014-09-24 | 上海埃格环保科技有限公司 | Water treatment method for purifying sewage by use of microorganisms |
| CN104894097A (en) * | 2015-05-09 | 2015-09-09 | 浙江省农业科学院 | Long-acting water-purifying bacterium capsule and preparation method thereof |
| CN104909463A (en) * | 2015-05-09 | 2015-09-16 | 浙江省农业科学院 | Core-shell structured water purification bacterium capsule and preparation method thereof |
| CN104894097B (en) * | 2015-05-09 | 2018-11-06 | 浙江省农业科学院 | A kind of long-acting water purification bacterium capsule and preparation method thereof |
| CN105036322A (en) * | 2015-07-22 | 2015-11-11 | 中山环保产业股份有限公司 | Denitrification suspended carrier |
| CN105347515A (en) * | 2015-12-09 | 2016-02-24 | 安徽师范大学 | Packing medium for permeable reactive barrier and application of packing medium to aspect of in-situ treatment on underground water nitrate pollution and method thereof |
| CN105481094A (en) * | 2016-01-20 | 2016-04-13 | 无锡国联环保能源集团有限公司 | Ceramic filler for wastewater treatment, production method for ceramic filler and wastewater treatment device |
| US11034932B2 (en) | 2016-11-29 | 2021-06-15 | China Petroleum & Chemical Corporation | Composition capable of promoting the growth of denitrifying microorganisms and uses thereof |
| CN106957109A (en) * | 2017-03-10 | 2017-07-18 | 同济大学 | Have the level stream biomembrane reaction apparatus of sustained release basicity and carbon source function concurrently |
| CN106957109B (en) * | 2017-03-10 | 2020-07-28 | 同济大学 | Horizontal flow biomembrane reaction device with functions of slowly releasing alkalinity and carbon source |
| CN107935163A (en) * | 2017-11-02 | 2018-04-20 | 北京博汇特环保科技股份有限公司 | Carbon source solution from agriculture derivative and its preparation method and application |
| CN107935202B (en) * | 2017-12-21 | 2020-02-11 | 环境保护部华南环境科学研究所 | Biodegradable slow-release carbon source filler and preparation method thereof |
| CN107935202A (en) * | 2017-12-21 | 2018-04-20 | 环境保护部华南环境科学研究所 | A kind of biodegradable slow release carbon source filler and preparation method thereof |
| CN111099722A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Composition for promoting denitrification and application thereof |
| CN109607778A (en) * | 2019-01-31 | 2019-04-12 | 北京潮白环保科技股份有限公司 | The processing method of the carrier of nitrate in a kind of removal water body |
| CN115028261A (en) * | 2022-06-13 | 2022-09-09 | 浙江中诚环境研究院有限公司 | Sulfur autotrophic denitrification filler and preparation method thereof |
| CN114988571A (en) * | 2022-07-07 | 2022-09-02 | 嘉兴学院 | Carbon source carrier filler for denitrifying bacteria and preparation method |
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Application publication date: 20120926 |