Method mixing decoration waste and soil to treat organic polluted soil

A technology of organic pollution and mixed treatment, applied in the field of solid waste resource utilization and soil remediation, to achieve the effect of easy access to raw materials, co-disposal of waste, and simple process

Active Publication Date: 2019-01-04
SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to seek a green and sustainable repairing agent for organic pollutants in soil and to solve the problem of accommodating and recycling decoration waste, the present invention aims to provide a method for treating organically polluted soil by mixing decoration waste-soil, which will not It produces secondary pollution to the soil, while repairing the soil, it solves the problem of construction waste consumption and realizes co-disposal of waste

Method used

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  • Method mixing decoration waste and soil to treat organic polluted soil
  • Method mixing decoration waste and soil to treat organic polluted soil
  • Method mixing decoration waste and soil to treat organic polluted soil

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Take mixed decoration waste from a certain place in Shanghai, sieve out the large pieces of debris, and use a jaw crusher to crush it. According to construction aggregate: brick: wood / chip: cardboard / chip: muck=5:3:5:5: 2 Ratio preparation of mixed decoration waste system, mixed with three simulated contaminated soils of phenanthrene, dimethoate and atrazine according to decoration waste: soil weight ratio of 1:2, and the obtained mixed solid waste was filled in a 500mL zero headspace extractor, Add oxygen-free water to about 5 cm above the surface of the waste, and let it stand. A total of 5 cans were set up as a batch experiment for comparison. At the same time, a blank control was set up, and clean soil was added to the polluted soil to simulate the polluted soil-decoration waste mixed system. The ambient temperature of the whole process control is 15±1 o c.

[0044] On the 1st day (6 hours), 3rd day, 7th day, 15th day and 28th day of reaction, select 1 tank for s...

Embodiment 2

[0046]Using the mixed decoration waste system in Example 1, mixed with the polluted soil obtained from a polluted site in Yangpu District according to the decoration waste: soil weight ratio of 1:2, wherein the polluted soil was tested, and its main organic pollutants were petroleum hydrocarbons, xylene and Toluene and other monocyclic aromatic hydrocarbons, phenols. The mixed solid waste obtained by mixing was filled into a 500 mL zero headspace extractor, oxygen-free water was added to cover the waste surface by about 10 cm, and it was sealed and left standing. A total of 5 cans were set up as a batch experiment for comparison. At the same time, a blank control was set up, and clean soil was added to the polluted soil to simulate the polluted soil-decoration waste mixed system. The ambient temperature of the whole process control is 20±1 o c.

[0047] On the 1st day (6 hours), 3rd day, 7th day, 15th day and 28th day of reaction, select 1 tank for sampling, pipette all sol...

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Abstract

The invention discloses a method mixing decoration waste and soil to treat organic polluted soil and belongs to technical field of solid waste recycling and soil remediation. The method includes: simply preprocessing mixed decoration waste to allow the components of the mixed decoration waste to be 5 parts of aggregate, 3 parts of brick, 5 parts of wood/sawdust, 5 parts of paper board/paper scrapsand 2 parts of mortar/soil, mixing the preprocessed decoration waste and soil according to certain mass ratio and loading into a zero headspace extractor, adding anaerobic water until the water submerges the surface of the solid 3-5cm, and standing and performing reaction under a shady and cool condition for 28 days to effectively lower total organic pollutant content in decoration waste-soil, wherein the preprocessing includes crushing, screening and the like. The method has the advantages the method is a green and cheap building waste recycling and polluted soil remediation method, and themethod is simple in process, good in remediation effect and free of a capacity increasing problem and is a solid waste treatment technology conforming to green sustainable repairing.

Description

technical field [0001] The invention belongs to the technical field of solid waste resource utilization and soil remediation, and in particular relates to a method for treating organic polluted soil by mixing decoration garbage and soil. Background technique [0002] With the continuous advancement of China's industrialization and urbanization, a large number of polluting enterprises face demolition and reconstruction every year, and the leftover industrial and toxic land poses a major potential threat to the environment. Cultivated land, residences, and the soil around mining areas are gradually becoming polluted to varying degrees. According to statistics, in recent years, the area of ​​soil pollution, the types of pollutants, the concentration of pollutants, and the scope of distribution have been continuously expanding. Organic pollutants are important pollutants that cause soil pollution. They have biological toxicity such as long-term effects, teratogenicity, carcinog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08B09C1/00
CPCB09C1/00B09C1/08
Inventor 黄晟张辰谭学军朱煜孙瑞殷瑶
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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