A bibliographic study reviewing the last decade of hydrochar in environmental application:history,status quo,and trending research paths  

作　　者：Junxia Huang Yanfang Feng Huifang Xie Ping Wu Minli Wang Bingyu Wang Qiang Zhang Shicheng Zhang Zhengang Liu 

机构地区：[1]Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse,School of Environmental and Biological Engineering,Nanjing University of Science and Technology,Nanjing 210094,China [2]Key Laboratory of Agro-Environment in Downstream of Yangtze Plain,Ministry of Agriculture and Rural Affairs,Institute of Agricultural Resources and Environment,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China [3]Centre for Agricultural Resources Research,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Shijiazhuang 050021,China [4]Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China [5]Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3),Department of Environmental Science and Engineering,Fudan University,Shanghai 200433,China [6]Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China [7]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Biochar》2023年第1期231-257,共27页生物炭（英文）

基　　金：National Natural Science Foundation of China(Nos.42107398,42277332 and 42207453);Natural Science Foundation of Jiangsu Province(BK20210358 and BK20221428);Ecological Environment Research Project of Jiangsu Province(Policy Guidance 2021006);China Postdoctoral Science Foundation(2020M68618);Y.F.Feng thanks the support of“333”High-level Talents Training Project of Jiangsu Province(2022-3-23-083).

摘　　要：Hydrothermal carbonization(HTC)technology has increasingly been considered for biomass conversion applications because of its economic and environmental advantages.As an HTC conversion product,hydrochar has been widely used in the agricultural and environmental fields for decades.A CiteSpace-based system analysis was used for conducting a bibliometric study to understand the state of hydrochar environmental application research from 2011 to 2021.Researchers had a basic understanding of hydrochar between 2011 and 2016 when they discovered hydrochar could apply to agricultural and environmental improvement projects.Keyword clustering results of the literature published in 2017-2021 showed that soil quality and plant growth were the major research topics,followed by carbon capture and greenhouse gas emissions,organic pollutant removal,and heavy metal adsorption and its bioavailability.This review also pointed out the challenge and perspective for hydrochar research and application,namely:(1)the environmental effects of hydrochar on soils need to be clarified in terms of the scope and conditions;(2)the influence of soil microorganisms needs to be investigated to illustrate the impact of hydrochar on greenhouse gas emissions;(3)combined heavy metal and organic contaminant sorption experiments for hydrochar need to be conducted for large-scale applications;(4)more research needs to be conducted to reveal the economic benefits of hydrochar and the coupling of hydrochar with anaerobic digestion technology.This review suggested that it would be valuable to create a database that contains detailed information on how hydrochar got from different sources,and different preparation conditions can be applied in the environmental field.

关 键 词：Hydrochar Environmental applications Research hotspots BIBLIOMETRICS CiteSpace 

分 类 号：TQ116.2[化学工程—无机化工] X32[环境科学与工程—环境工程]