91精品国产综合久久久久久漫画,91尤物网站网红尤物福利,中文字字幕一区二区三区四区五区

Info

Title:: Research Progress of Environmental Materials on Solidification and Stabilization of Heavy Metals in Soil

Author(s):: Huang Zhanbin; Li Fangze; School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing

Keywords:: Environmental materials; Heavy metal; Solidification and Stabilization(S/S); Effect mechanism; Research progress

CLC:

PACS:: -

DOI:: 10.7502/j.issn.1674-3962.2017.11.05

DocumentCode:

Abstract:: Solidification and Stabilization (S/S) is one of main technologies on the treatment of heavy metal pollution in soil, to strengthen the concept of environmental materials is more important in research and development of stabilization materials. Environmental materials are essential for human beings with the lowest environmental load and the highest functional capacity, the materials have three areas of characteristics, such as functional, environmentally friendly and economical. The point pollution of heavy metals in farmland soil in our country reached 19.1%. There are a lot of treatment options which include physical technology, chemical technology, biotechnology and engineering technology. Chemical technology consists of leaching and stabilization and more than 70% applied technology of the soil heavy metal pollution control was choosing the latter. The types of environmental materials for solidification and stabilization can be classified into inorganic materials, organic materials and redox materials. The application of environmental materials should be adopted according to the combination of influencing factors such as the category of heavy metals and their pollution levels, remediation targets, local soil quality, climate and socio-economic conditions, and integrated with biotechnology and engineering technology. This paper combines the research progress of soil heavy metal mobilization stabilization at home and abroad, summarizes the mechanism of environmental material activity for soil heavy metal pollution control, which mainly includes precipitation, adsorption, coordination, organic complexation and redox reaction, etc.. By above reaction process, it will change the existing and chemical form of heavy metals in soil, reduces their migration and bioavailability. This article puts forward the basic research framework of soil heavy metal pollution control based on the systematization of study on Mobilization and Stabilization of Heavy Metals in soils. It includes five aspects which are materials and heavy metals, materials - soil - heavy metals, materials - soil - plant - heavy metals, materials - field - crop - heavy metals, as well as the comprehensive evaluation of heavy metal management. This is the basis for the combination of promoting the basic research and application research of environmental materials.

亚洲国产aⅴ成人精品无吗,中文字幕999精品,人妻人人妻a乱aa乱,日韩三级aaaaa,亚洲午夜成人精品无码色欲,国产第一页第二页av,老熟女北岛玲888av,99re热这里只有精品18,久久精品中文字幕久久

Research Progress of Environmental Materials on Solidification and Stabilization of Heavy Metals in Soil(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Info

References

Memo

Common functions

Navigate

Tools

Statistics