CN107116096A - A kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis - Google Patents
A kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis Download PDFInfo
- Publication number
- CN107116096A CN107116096A CN201710342160.8A CN201710342160A CN107116096A CN 107116096 A CN107116096 A CN 107116096A CN 201710342160 A CN201710342160 A CN 201710342160A CN 107116096 A CN107116096 A CN 107116096A
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- heavy metal
- sludge carbon
- bioanalysis
- united
- remediation method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- 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
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The present invention relates to a kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis, using municipal sludge, organic solid waste thermal decomposition product sludge carbon, APCAs quasi-chelate compounds as heavy-metal contaminated soil composite modifying agent, absorption and chelatropic reaction by sludge carbon, improve contaminated soil physicochemical property, in sludge carbon becomes thoroughly decomposed degradation process, accelerate contaminated soil oxygenation, accelerate heavy metal to be converted into stable state.Soil Microorganism, super enrichment heavy metal classes plant coupled biological restorative procedure after improvement, recover contaminated soil itself function.
Description
Technical field
The present invention relates to technical field of soil remediation, combine more specifically to a kind of pyrolyzing sludge carbon with bioanalysis
Heavy metal soil remediation method.
Background technology
2014《The national full soil dye publication of dirt status investigation》It has been shown that, national soil environment situation totally allows of no optimist,
The total exceeding standard rate of national soil be 16.1%, pollution type is based on inorganic type, and organic type takes second place, compound pollution proportion compared with
Small, exceeded digit of inorganic pollution accounts for the 82.8% of all super punctuation bits.
The characteristics of heavy metal pollution of soil has disguise, latency, irreversibility and chronicity, it is serious to threaten China's life
State environment, grain security and health.Therefore, how scale restoration of soil polluted by heavy metal, it has also become China it is current and
One of important topic that one section of period environment remediation will face from now on.
At present, the recovery technique of heavy-metal contaminated soil mainly have chemical leaching, dig with soil moved in improve the original, stabilisation/solidification,
Electro reclamation, phytoremediation etc..Wherein, chemical leaching operation difficulty is big, easily produce secondary pollution；Dig and soil moved in improve the original quantities
Greatly, it is costly to be only suitable for situation in small area, that soil pollution is serious.Stabilisation/curing technology cost it is low, simple to operate but
Risk is migrated in the presence of effusion；Electrokinetic remediation efficiency is low, cost is high.Single method can not adapt to the complicated pollution sources of contaminated site
Situation, processing cost is higher, and the persistence repaired is difficult to ensure that.
The content of the invention
The technical problem to be solved in the present invention is low, environmentally friendly and simple to operate there is provided a kind of rehabilitation cost
Pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis, in can be used for, slight pollution place and mine it is useless
Abandon place scale reparation.
The technical solution adopted for the present invention to solve the technical problems is：A kind of pyrolyzing sludge carbon is constructed with bioanalysis to combine
Heavy metal soil remediation method, comprise the following steps：
S1, put into composite modifying agent into contaminated soil, the composite modifying agent includes APCAs quasi-chelate compounds, in addition to
Sludge carbon or charcoal；The mass ratio of composite modifying agent and contaminated soil is 0.1~1:1, APCAs quasi-chelate compound dosage with
The mass ratio of composite modifying agent is 0~0.3:1, according to the species and concentration of heavy metal contaminants, the ratio of APCAs quasi-chelate compounds is suitable
, can be without APCAs quasi-chelate compounds for the low slight pollution place of heavy metal concentration through overtesting allotment control incorporation；
S2, through absorption, passivation, after chelatropic reaction, plant super enrichment heavy metal classes plant coupled biological.
In such scheme, the sludge carbon is product after municipal sludge, organic solid waste pyrolysis.
In such scheme, product after the charcoal form biomass pyrolysis.
In such scheme, the APCAs chelating agents are ethylenediamine disuccinic acid (EDDS), diethyl triacetic acid (NTA), Asia
The natural or artificial synthesized easily biological-degradable amino such as amino disuccinic acid (IDSA), winter propylhomoserin diethoxy butanedioic acid (AES)
Carboxylic acid quasi-chelate compound.
In such scheme, the super enrichment heavy metal classes plant can be using Jujun grasses, elsholtzia splendens, with ore deposit red-spotted stonecrop, cus-cus
Grass, cinnamomum camphora, Chinese ilex and photinia glabra, Cruciferae, grass family and landscape plant Agavaceae, Cannaceae etc., it is necessary to
The factors such as type, climatic characteristic, the Landscape benefit of the heavy metal pollution of comprehensive pollution area determined after test of many times using a kind of or
Multiple combinations.
In such scheme, the composite modifying agent is directly covered or admixed in contaminated soil with solid powder state.
In such scheme, according to situations such as the complexity and concentration of pollutant the soil remediation cycle be 6 months~3 years not
Deng.It can be combined with sight exploitation, suppression harmful substance can also be carried out for heavy metal characteristic, benefit materials are played to plant
The increment of the lifting implementation contaminated soil of economic value.
Implement the pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis of the present invention, with following beneficial effect
Really：
1st, municipal sludge can obtain sludge carbon using pyrolysis carbonization, and sludge carbon soil is in porous, and specific surface area is big, contains carboxylic
The functional groups such as base, phenolic hydroxyl group, carbonyl, typically in alkalescence, have very high absorption to various heavies such as Pb, Cu, Cd, As, Zn
Capacity.Absorption and chelatropic reaction by sludge carbon, improve contaminated soil physicochemical property, in sludge carbon becomes thoroughly decomposed degradation process,
Accelerate contaminated soil oxygenation, accelerate heavy metal to be converted into stable state.Soil Microorganism, super enrichment heavy metal classes after improvement
Plant coupled biological restorative procedure, recovers contaminated soil itself function.
2nd, APCAs quasi-chelate compounds can change the occurrence patterns of heavy metal in soil, and the contaminated solid phase of soil of activation release is inhaled
The heavy metal ion of attached fixation, is that soil sludge carbon absorbs and plant absorption creates conditions, accelerates heavy metal in soil to move to
In super enriching plant, Heavy Metals in Contaminated Soils concentration is fundamentally reduced, overcomes other restorative procedures to be only converted into stable knot
Close the leaching risk that state is present.
2nd, the present invention is repaiied using pyrolysis sludge carbon, APCAs quasi-chelate compound composite modifying agent heavy metal contaminated sites
It is multiple, and microorganism and phytoremediation are combined, progressively recover contaminated soil itself function, can not only solve the final disposal of sludge
Problem, and realize the treatment of wastes with processes of wastes against one another, reduces the cost of soil remediation, be adapted to scale repair in, slight pollution place and ore deposit
Place is discarded on mountain.
3rd, rehabilitation cost is low, and the present invention uses modifying agent wide material sources, cheap, in being repaired using this technology, gently
Venue cost is discarded in degree contaminated site and mine reduces cost 30%~50% compared to similar medicament.
4th, environmentally friendly, this technology is to recover contaminated soil itself function as target, and reinforcing Guyuan is not resulted in secondary
Pollution.
5th, simple to operate, main repair process of the invention is the covering or shallow-layer mixing of modifying agent, simple to operate.
Embodiment
With reference to embodiment, the invention will be further described, but protection scope of the present invention is not limited to this.
Embodiment 1
Certain 100 squares of cadmium pollution place ((average soil cadmium content is 100mg/kg)), pollution depth is 1.0 meters, by dirt
Mud thermal decomposition product sludge carbon, APCAs quasi-chelate compounds admix Polluted Soil as 30 cubes of the composite modifying agent of heavy-metal contaminated soil
APCAs quasi-chelate compounds dosage is 0.1 in earth, composite modifying agent:1.
After absorption in 3 months, passivation, chelatropic reaction, penny cress is planted, it is whole to repair the phase about 11 by 1 growth period
Month, repaired rear soil Leaching detection, leaching standard is HJ557-2009, and as a result showing the Leaching of cadmium can reduce
More than 90%.
Embodiment 2
Certain cadmium, arsenic pollution place (average soil cadmium content is 80mg/kg, and average arsenic in soil content is 150mg/kg)
100 squares, pollution depth is 1.5 meters, regard pyrolyzing sludge product sludge carbon, APCAs quasi-chelate compounds as heavy-metal contaminated soil
45 cubes of composite modifying agent to admix in contaminated soil, composite modifying agent APCAs quasi-chelate compounds dosage be 0.15:1.
After absorption in 3 months, passivation, chelatropic reaction, paniculate rockcress seed is planted, it is whole to repair the phase about 16 by 2 growth periods
Individual month, repaired rear soil Leaching detection, leaching standard is HJ557-2009, and as a result showing the Leaching of cadmium can reduce
More than 90%.
Embodiments of the invention are described above, but the invention is not limited in above-mentioned specific embodiment party
Formula, above-mentioned embodiment is only schematical, rather than restricted, and one of ordinary skill in the art is in this hair
Under bright enlightenment, in the case of present inventive concept and scope of the claimed protection is not departed from, many forms can be also made, this
It is a little to belong within the protection of the present invention.
Claims (6)
1. a kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis, it is characterised in that comprise the following steps：
S1, composite modifying agent is put into contaminated soil, the composite modifying agent includes, sludge carbon or charcoal, in addition to it is few
Measure APCAs quasi-chelate compounds；The mass ratio of composite modifying agent and contaminated soil is 0.1~1:1, APCAs quasi-chelate compound dosage with
The mass ratio of composite modifying agent is 0~0.3:1, according to the species and concentration of heavy metal contaminants, the accounting of APCAs quasi-chelate compounds
, can be without APCAs quasi-chelate compounds for the low slight pollution place of heavy metal concentration preferably through overtesting allotment control incorporation；
S2, through absorption, passivation, after chelatropic reaction, plant super enrichment heavy metal classes plant coupled biological.
2. pyrolyzing sludge carbon according to claim 1 and the united heavy metal soil remediation method of bioanalysis, its feature exist
In the sludge carbon is product after municipal sludge, organic solid waste pyrolysis.
3. pyrolyzing sludge carbon according to claim 1 and the united heavy metal soil remediation method of bioanalysis, its feature exist
In product after the charcoal form biomass pyrolysis.
4. pyrolyzing sludge carbon according to claim 1 and the united heavy metal soil remediation method of bioanalysis, its feature exist
In the APCAs chelating agents are ethylenediamine disuccinic acid, diethyl triacetic acid, iminodisuccinic acid or winter propylhomoserin diethoxy
Base butanedioic acid.
5. pyrolyzing sludge carbon according to claim 1 and the united heavy metal soil remediation method of bioanalysis, its feature exist
In the super enrichment heavy metal classes plant is using Jujun grasses, elsholtzia splendens, with ore deposit red-spotted stonecrop, vetiver, cinnamomum camphora, Chinese ilex, red autumnal leaves stone
Nanmu, crucifer, grass, Agavaceae plants or Cannaceae plant.
6. pyrolyzing sludge carbon according to claim 1 and the united heavy metal soil remediation method of bioanalysis, its feature exist
In the composite modifying agent is directly covered or admixed in contaminated soil with solid powder state.
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| CN201710342160.8A CN107116096A (en) | 2017-05-16 | 2017-05-16 | A kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis |
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| CN201710342160.8A CN107116096A (en) | 2017-05-16 | 2017-05-16 | A kind of pyrolyzing sludge carbon and the united heavy metal soil remediation method of bioanalysis |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442566A (en) * | 2017-09-15 | 2017-12-08 | 佛山科学技术学院 | A kind of method using red-spotted stonecrop rehabilitating soil cadmium pollution |
| CN107931321A (en) * | 2017-11-06 | 2018-04-20 | 华南师范大学 | A kind of restorative procedure of heavy metal pollution mining area agricultural land soil |
| CN108326023A (en) * | 2018-02-28 | 2018-07-27 | 中山大学 | The method that wing pod Cassia tora and charcoal joint repair Tailings Dam |
| CN109231470A (en) * | 2018-10-22 | 2019-01-18 | 浙江海洋大学 | Phosphorus original position minimizing technology in a kind of eutrophic water body |
| CN109465281A (en) * | 2018-12-25 | 2019-03-15 | 成都全健水工科技有限公司 | Phosphorus tailing original position ecological restoring method |
| CN109734263A (en) * | 2017-10-31 | 2019-05-10 | 中环沃野环保有限公司 | A method of domestic sludge is quickly repaired using CPPM collaboration recovery scenario |
| CN111253192A (en) * | 2020-03-16 | 2020-06-09 | 江西信明科技发展有限公司 | Navel orange planting soil conditioner with insecticidal effect and improvement method thereof |
| CN111790739A (en) * | 2020-07-27 | 2020-10-20 | 河南省科学院高新技术研究中心 | Method for repairing cadmium-polluted soil by using crassula argentea |
| CN111837498A (en) * | 2020-08-06 | 2020-10-30 | 乐昌市市政建设工程有限公司 | Garden soil improvement method |
| CN112661369A (en) * | 2020-12-25 | 2021-04-16 | 云南龙氏肥业有限公司 | Method for treating municipal sludge by using pennisetum hydridum and sludge in synergistic circulating manner |
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| CN106540958A (en) * | 2017-01-13 | 2017-03-29 | 湖南永清环保研究院有限责任公司 | A kind of method of utilization phosphate solubilizing bacteria fortification of plants cadmium pollution soil repair |
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| CN105170623A (en) * | 2015-09-30 | 2015-12-23 | 河南行知专利服务有限公司 | Method for restoring heavy metal contaminated soil through combination of biological activated carbon and plants |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107442566A (en) * | 2017-09-15 | 2017-12-08 | 佛山科学技术学院 | A kind of method using red-spotted stonecrop rehabilitating soil cadmium pollution |
| CN109734263A (en) * | 2017-10-31 | 2019-05-10 | 中环沃野环保有限公司 | A method of domestic sludge is quickly repaired using CPPM collaboration recovery scenario |
| CN107931321A (en) * | 2017-11-06 | 2018-04-20 | 华南师范大学 | A kind of restorative procedure of heavy metal pollution mining area agricultural land soil |
| CN108326023A (en) * | 2018-02-28 | 2018-07-27 | 中山大学 | The method that wing pod Cassia tora and charcoal joint repair Tailings Dam |
| CN109231470A (en) * | 2018-10-22 | 2019-01-18 | 浙江海洋大学 | Phosphorus original position minimizing technology in a kind of eutrophic water body |
| CN109465281A (en) * | 2018-12-25 | 2019-03-15 | 成都全健水工科技有限公司 | Phosphorus tailing original position ecological restoring method |
| CN111253192A (en) * | 2020-03-16 | 2020-06-09 | 江西信明科技发展有限公司 | Navel orange planting soil conditioner with insecticidal effect and improvement method thereof |
| CN111790739A (en) * | 2020-07-27 | 2020-10-20 | 河南省科学院高新技术研究中心 | Method for repairing cadmium-polluted soil by using crassula argentea |
| CN111837498A (en) * | 2020-08-06 | 2020-10-30 | 乐昌市市政建设工程有限公司 | Garden soil improvement method |
| CN112661369A (en) * | 2020-12-25 | 2021-04-16 | 云南龙氏肥业有限公司 | Method for treating municipal sludge by using pennisetum hydridum and sludge in synergistic circulating manner |
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