Unraveling natural aging-induced properties change of sludge-derived hydrochar and enhanced cadmium sorption site heterogeneity

作     者：Bingyu Wang Cenyao Shang Huifang Xie Haijun Sun Qiang Zhang Lihong Xue Filip M.G.Tack Deyi Hou Yanfang Feng Jörg Rinklebe 

作者机构：Jiangsu Key Laboratory of Chemical Pollution Control and Resources ReuseSchool of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Agro-Environment in Downstream of Yangtze PlainNational Agricultural Experiment Station for Agricultural EnvironmentMinistry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014China Co-Innovation Center for Sustainable Forestry in Southern ChinaCollege of ForestryNanjing Forestry UniversityNanjing 210037China Department of Green Chemistry and TechnologyGhent University9052 GhentBelgium School of EnvironmentTsinghua UniversityBeijing 100084China School of Architecture and Civil EngineeringInstitute of Foundation EngineeringWaterand Waste-ManagementLaboratory of Soiland Groundwater-ManagementUniversity of WuppertalPauluskirchstraße 742285 WuppertalGermany 

出 版 物：《Biochar》 (生物炭（英文）)

年 卷 期：2022年第4卷第1期

页      面：615-634页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：the National Natural Science Foundation of China(Nos.41877090 and 42107398) Natural Science Foundation of Jiangsu Province(BK20181165 and BK20210358) China Postdoctoral Science Foundation(2020M68618) Yunnan Branch of China National Tobacco Corporation(2022530000241022) 

主　　题：Sludge-derived hydrochar Hydrothermal carbonization Natural aging Physicochemical properties Sorption behavior Cadmium 

摘      要：Hydrochar has potential applications in soil improvement and heavy metal *** would undergo the process of aging when introduced into the soil,altering its ***,recent studies have focused mainly on the artificial aging of hydrochar,which could not reveal the cumulative effect of multiple environmental ***,the periodical monitoring of the property and sorption behavior of hydrochar after amending soils is necessary to better understand the multifaceted mechanisms associated with the natural aging of *** study selected the sludge-derived hydrochar(SLHC)as a typical hydrochar and applied a 16-month rice-wheat-rice rotation to mimic the natural aging of hydrochar,focusing on changing properties and cadmium(Cd)sorption and literature contrast between aging strategies and biochar *** porosity,O abundance,and ash content of 16-month aged SLHC increased by 37%,47%,and 8.5%,respectively,facilitating Cd sorption due to surface complexation,pore sorption,and *** sorption percentage of Cd to SLHC was in the range of 11-14%for SLHC-A0 and increased to 17-31%for SLHC-A4 and 20-32%for SLHC-A16 after natural *** natural aging of SLHC induced by ash content played an essential role in Cd sorption site *** regression analysis showed that aging strategies on sorption behavior significantly differed between ***,studies involving natural aging with multiple environmental factors are preferred over those involving chemical or biological *** studies should continue to explore the mechanisms of natural aging-induced heavy metal sorption between hydrochar and *** results improve insights to appraise the potential of SLHC as soil amendments to alleviate the adverse effects of heavy metal contamination and provide an essential basis for researchers and staff in soil management and environmental prevention.