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Environmental impact evaluation method for road backfilling by using renewable solid waste material

A technology of environmental impact and evaluation method, which is applied in the direction of analyzing materials, material inspection products, and material excitation analysis, etc., and can solve problems such as damage, environmental pollution, and changes in toxicity and leaching capacity

Active Publication Date: 2020-12-25
ZHEJIANG UNIV OF TECH
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  • Application Information

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Problems solved by technology

In addition, even if the material has no obvious pollution to the environment during use, its toxicity leaching ability is likely to change greatly after the road is damaged, damaged, or aged, which may cause pollution to the environment

Method used

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  • Environmental impact evaluation method for road backfilling by using renewable solid waste material

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Embodiment Construction

[0076] The present invention will be further described below in conjunction with the accompanying drawings.

[0077] refer to figure 1 , an environmental impact assessment method for renewable solid waste materials in road construction, comprising the following steps:

[0078] Step1: Preliminary confirmation of the material: confirm the type, source and relevant information data of the material, and search the possible toxicity characteristics of the material in the database;

[0079] Step2: Search the data information of the target material in the database, if there is no available data in the database, enter Step3; if there is available data in the database, enter Step26;

[0080] Step3: Carry out a toxicity identification test on the material to be tested, first measure the water content of the sample, and crush the sample, after passing through a 9.5mm sieve, weigh 150-200g of the sample powder and place it in a 2L extraction bottle; according to the liquid-solid ratio of...

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Abstract

The invention provides an environmental impact evaluation method for road backfilling by using a renewable solid waste material. The method comprises the following steps of: confirming the material, and retrieving material property characteristics in an information base; identifying the toxicity of the material, and judging the availability of the material; if the material is available, performingchemical toxicity analysis and ecological toxicity test, wherein the chemical toxicity analysis comprises analysis of application scenes of the material, and the environmental characteristics of thematerial before use, in use and after use are respectively evaluated by performing column leaching, batch leaching, tank leaching, soil adsorption and other tests on the material; the ecological toxicity test comprises the steps of observing the toxicity of the material or leachate thereof to the tested species to evaluate the environmental impact of the material; and comparing the results of thechemical toxicity analysis and the ecological toxicity test and the local receptor environment with the acceptance standard to obtain the material environmental impact evaluation conclusion. The method provided by the invention effectively evaluates the environmental impact caused by the renewable aggregate, and provides a reference for the environmental impact evaluation means and method generated by resource utilization of the renewable material in engineering.

Description

technical field [0001] The invention belongs to the field of environmental assessment during utilization of renewable solid waste material resources, and in particular relates to an environmental impact assessment method for road backfilling with renewable solid waste materials. Background technique [0002] Applying renewable waste (such as construction waste, incinerator slag, etc.) to road construction not only consumes a large amount and has low utilization cost, it can replace sand and gravel materials that are gradually in short supply, and has the advantage of improving pavement or pavement performance. However, the use of renewable waste needs to consider its chemical stability and its impact on the surrounding environment. Especially under the erosion of surface water and groundwater, the heavy metal ions, salt and organic matter that may be contained in it will migrate and pollute the surrounding environment. [0003] According to the different structures of mater...

Claims

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Application Information

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IPC IPC(8): G01N1/40G01N1/34G01N1/28G01N21/73G01N23/2202G01N23/223G01N33/24G01N33/50
CPCG01N1/4005G01N1/4055G01N1/34G01N1/286G01N21/73G01N23/2202G01N23/223G01N33/24G01N33/5014G01N2001/2866Y02W30/91
Inventor 胡艳军胡贵祥赵玲芹朱永豪
Owner ZHEJIANG UNIV OF TECH
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