Author
Jianwu Li
Other affiliations: Chinese Academy of Sciences, Zhejiang University
Bio: Jianwu Li is an academic researcher from Zhejiang A & F University. The author has contributed to research in topics: Soil horizon & Soil water. The author has an hindex of 9, co-authored 15 publications receiving 790 citations. Previous affiliations of Jianwu Li include Chinese Academy of Sciences & Zhejiang University.
Topics: Soil horizon, Soil water, Asian Dust, Soil carbon, Biochar
Papers
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TL;DR: An overview on the impact of biochar on the environmental fate and mobility of heavy metals and organic pollutants in contaminated soils and its implication for remediation of contaminated soils is provided.
Abstract: Soil contamination with heavy metals and organic pollutants has increasingly become a serious global environmental issue in recent years. Considerable efforts have been made to remediate contaminated soils. Biochar has a large surface area, and high capacity to adsorb heavy metals and organic pollutants. Biochar can potentially be used to reduce the bioavailability and leachability of heavy metals and organic pollutants in soils through adsorption and other physicochemical reactions. Biochar is typically an alkaline material which can increase soil pH and contribute to stabilization of heavy metals. Application of biochar for remediation of contaminated soils may provide a new solution to the soil pollution problem. This paper provides an overview on the impact of biochar on the environmental fate and mobility of heavy metals and organic pollutants in contaminated soils and its implication for remediation of contaminated soils. Further research directions are identified to ensure a safe and sustainable use of biochar as a soil amendment for remediation of contaminated soils.
661 citations
TL;DR: Overall, the sorption capacity of CFBs pyrolyzed at 300°C substantially increased for Pb2+ with ammonia and nitric acid modification, however, these chemical modifications did not improve the Sorption of Pb on CFBspyrolyzing at temperatures ≥500°C, thereby highlighting a temperature dependent response of chemically modified biochars to Pb sorption in this study.
170 citations
TL;DR: In this article, the effects of different biochar application rates on soil GHG emissions and their linkages with biochar-induced changes in soil environmental factors remain unclear in managed plantations.
62 citations
TL;DR: In this article, a laboratory study was conducted to evaluate the effect of biochar on soil adsorption and desorption of DEP and showed that using biochar to remediate contaminated soil contaminated with DEP can potentially reduce the bioavailability and improve soil properties.
Abstract: Purpose
Diethyl phthalate (DEP) is one of the most commonly used plasticizers as well as a soil contaminant. Using biochar to remediate soils contaminated with DEP can potentially reduce the bioavailability of DEP and improve soil properties. Therefore, a laboratory study was conducted to evaluate the effect of biochar on soil adsorption and desorption of DEP.
41 citations
TL;DR: In this paper, the authors used isotopes of soils, saprolite, bedrocks and Asian dust to not only identify long-range transported dust but also quantify the dust contribution to Hainan soils.
26 citations
Cited by
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TL;DR: Due to complexity of soil-water system in nature, the effectiveness of biochars on remediation of various organic/inorganic contaminants is still uncertain.
3,163 citations
TL;DR: In this paper, a review of the preparation, characterization, modification, and especially environmental application of biochar, based on more than 200 papers published in recent 10 year, to provide an overview of Biochar with a particular on its environmental application.
1,017 citations
TL;DR: This review focuses on and describes heavy metal contamination in soil-food crop subsystems with respect to human health risks, and explores the possible geographical pathways of heavy metals in such subsystems.
952 citations
TL;DR: The results demonstrated that the rice straw biochar can effectively immobilize heavy metals, thereby reducing their mobility and bioavailability in contaminated soils.
497 citations