A compound restoration agent for cleaning oil-contaminated soil

A technology of oil pollution and remediation agent, applied in the field of environmental remediation, can solve the problems of high cost, high technical requirements, and long effective period, and achieve low cost, low technical requirements, and quick results

Active Publication Date: 2020-11-20
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of high technical requirements, high cost, or long effective period in existing methods for repairing oil-contaminated soils, the purpose of the present invention is to provide a compound repairing agent for cleaning oil-contaminated soils, which can be applied to repair oil-contaminated soils. Oil-contaminated soil has the characteristics of quick results, low technical requirements, and no secondary pollution, and the compound restoration agent itself has the advantages of simple preparation, low cost, environmental friendliness, and abundant sources

Method used

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  • A compound restoration agent for cleaning oil-contaminated soil

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] A compound restoration agent for cleaning oil-contaminated soil, which is prepared from 200g of plant enzyme and 100g of biochar, wherein the biochar is calcined by kelp in an oxygen-isolated environment, and the plant enzyme is prepared from 100g of discarded vegetable leaves, rice 20g, 150g of rice washing water, 50g of brown sugar, and 2g of cellulase are fermented, and the fermentation temperature of the preferred plant enzyme is 20°C, and the fermentation time is 30 days. The preferred preparation process of the Youfu compound repair agent is as follows: add biochar to the plant enzyme fermented for 2 days to continue fermentation, filter through a 100-mesh sieve after the fermentation is completed, and then sterilize the obtained mixture in an ultraviolet environment to obtain the repair product. With repair agent.

[0023] The preparation process of biochar includes the following steps:

[0024] (1) Wash the surface of the kelp and soak it in deionized water for...

Embodiment 2

[0028] A compound restoration agent for cleaning oil-contaminated soil, which is prepared from 350g of plant enzyme and 100g of biochar, wherein the biochar is calcined by kelp in an oxygen-isolated environment, and the plant enzyme is prepared from 100g of discarded vegetable leaves, rice 25g, 175g of rice washing water, 65g of brown sugar, and 3.5g of cellulase are fermented, and the fermentation temperature of the preferred plant enzyme is 25°C, and the fermentation time is 20 days. The preferred preparation process of the Youfu compound repair agent is as follows: add biochar to the plant enzyme fermented for 2 days to continue fermentation, filter through a 110-mesh sieve after the fermentation is completed, and then sterilize the resulting mixture in an ultraviolet environment to obtain the repair product. With repair agent.

[0029] The preparation process of biochar includes the following steps:

[0030] (1) Wash the surface of the kelp and soak it in deionized water ...

Embodiment 3

[0034] A compound restoration agent for cleaning oil-contaminated soil, which is prepared from 500g of plant enzyme and 100g of biochar, wherein the biochar is calcined by kelp in an oxygen-isolated environment, and the plant enzyme is prepared from 100g of discarded vegetable leaves, rice 30g, 200g of rice washing water, 80g of brown sugar, and 5g of cellulase are fermented. The fermentation temperature of the preferred plant enzyme is 30°C and the fermentation time is 7 days. The preferred preparation process of the Youfu compound repair agent is as follows: add biochar to the plant enzyme fermented for 3 days to continue fermentation, filter through a 120-mesh sieve after the fermentation is completed, and then put the resulting mixture in an ultraviolet environment to sterilize to obtain the repair product. With repair agent.

[0035] The preparation process of biochar includes the following steps:

[0036] (1) Wash the surface of the kelp and soak it in deionized water f...

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Abstract

The invention belongs to the technical field of environment remediation and particularly discloses a compound remediation agent for cleaning petroleum-contaminated soil. The compound remediation agent is prepared from plant enzymes and biochar, wherein the biochar is formed by calcination of kelp in the oxygen isolation environment; and the biochar is added into the plant enzymes fermenting for 2-3 days, fermenting is continue to conducted, filtering is conducted, then obtained mixed liquid is placed in the ultraviolet environment to be sterilized, and thus the compound remediation agent is obtained. An application method of the compound remediation agent comprises the steps that water is added into the compound remediation agent to be diluted by 3-5 times, and then the diluted compound remediation agent is sprayed on the surface of the soil; the soil is turned over and irrigated; and a diluted solution of the compound remediation agent is sprayed once every 7 days, and the spraying density is 0.3-0.5 kg / m<2>. Compared with an existing biological or chemical or physical remediation method, when the petroleum-contaminated soil is remedied by the compound remediation agent, the characteristics that the quick effect is achieved, the technical requirement degree is low, and secondary pollution is avoided; and the compound remediation agent has the advantages of being easy to prepare, low in cost, environmentally friendly and rich in source.

Description

technical field [0001] The invention belongs to the technical field of environmental restoration, and in particular relates to a compound restoration agent for cleaning oil-contaminated soil. Background technique [0002] With the development of industrialization, the demand for oil is also increasing year by year, but in the process of oil exploration, mining, transportation, refining, and use, it will inevitably pollute the air and surrounding soil, especially the soil pollution caused by oil spills. The organic hydrocarbons in petroleum are difficult to degrade and are toxic when permeated into the soil, which not only pollutes the groundwater, but also makes it difficult to cultivate the soil, and can be enriched in the body along with the transfer of the food chain, seriously threatening human health. [0003] At present, the remediation methods of oil-contaminated soil mainly include physical remediation, chemical remediation and biological remediation. However, tradit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00B09C1/08C09K17/40C09K101/00
CPCB09C1/00B09C1/08B09C2101/00C09K17/40C09K2101/00
Inventor 蔡璐周亚蕊宋文东应知伟王亚宁纪丽丽郭健
Owner ZHEJIANG OCEAN UNIV
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