粉煤灰
生物累积
植被(病理学)
环境科学
植物修复
生态演替
表土
生态学
环境化学
废物管理
土壤水分
化学
土壤科学
生物
工程类
病理
医学
作者
Subodh Kumar Maiti,Dipita Ghosh,Deep Raj
出处
期刊:Elsevier eBooks
[Elsevier]
日期:2022-01-01
卷期号:: 501-523
被引量:3
标识
DOI:10.1016/b978-0-12-817686-3.00011-6
摘要
In India, about 75% of the electricity is generated from coal-based thermal power plants and they produce approximately 210 million tons of fly ash (FA). High ash content of Indian coal (30%–40%) produces large volumes of FA of which 68% has been successfully utilized in various activities. FA is stored in the earthen FA lagoons (embankment), where colonization of vegetation (grasses, herbs, and shrubs) is very common. This vegetation is established as a process of ecological succession and many toxic metals are bioaccumulated and transferred to aerial parts. During phytoremediation of FA, these naturally grown plant species can be used. In this chapter two field studies on bioaccumulation of metals in naturally colonizing vegetation are discussed, while one case study on bioaccumulation of metals in FA-filled coal mine opencast voids blanketed with topsoil is also discussed.
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