Multi-stage screening of biochar and its effect on remediation of nickel and cadmium contaminated ac...
Multi-stage screening of biochar and its effect on remediation of nickel and cadmium contaminated acidic soil in a cold region
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Author / Creator
Wang, Yuqi , Wu, Di , Zhang Xiufang and Li Mingtang
Publisher
Tianjin: Journal of Agricultural Resources and Environment (JARE)
Journal title
Language
Chinese
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Tianjin: Journal of Agricultural Resources and Environment (JARE)
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Contents
为探究生物炭在寒区镍和镉复合污染酸性土壤修复方面的应用效果，通过溶液-土壤-植物三级筛选技术，系统研究了各类生物炭对镍和镉的吸附与固定及其对小白菜吸收、富集、转运镍和镉的影响。结果表明，在高温（600℃）下制备的生物炭对镍和镉的吸附能力较强，不同改性条件下菌糠炭和鸡粪炭对溶液中镍和镉的饱和吸附量和解吸量差异较大，其中CaCl2和KMnO4改性菌糠炭对镍和镉均有较强的吸附能力，且吸附后的镍和镉不易解吸。另外，CaCl2和KMnO4改性菌糠炭对土壤中有效态镍的固定率分别可达72.30%和67.30%，对有效态镉的固定率分别为52.05%和51.10%，且固定的镍和镉在土壤酸化和冻融条件下不易释放。CaCl2和KMnO4改性菌糠炭可以使土壤和叶片中的镍和镉由高迁移性向低迁移性转化，增强细胞壁和液泡...
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Full title
Multi-stage screening of biochar and its effect on remediation of nickel and cadmium contaminated acidic soil in a cold region
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TN_cdi_proquest_journals_2807667783
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_2807667783
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ISSN
2095-6819
E-ISSN
2095-6819
DOI
10.13254/j.jare.2021.0147
