期刊论文

Effects of waterlogging and application of bio-carbon from corn stalks on the physico-chemical properties and the forms of arsenic and cadmium in arsenic and cadmium-contaminated soils

Tie, B.

中文

环境科学学报

0253-2468

2018

38

2

715-721

10.13671/j.hjkxxb.2017.0335

农业部、财政部专项（No.20160418,2014028）； 湖南省政府重大专项（No.20130101）~~；

本校为第一机构

通过室内土壤培养的方法模拟稻田土壤环境,研究淹水环境下添加(1%添加量)不同温度制备的玉米秸秆生物炭(CB-300、CB-400、CB- 500)对砷、镉复合污染稻田土壤氧化还原电位(E_h) 、pH值及不同形态砷、镉含量动态变化的影响.结果表明,热解温度会影响玉米秸秆生物炭的理化性质,热解温度由300 ℃升至500 ℃,玉米秸秆生物炭芳香性增加,亲水性和极性降低,灰分含量增加,pH值升高.淹水环境下添加玉米秸秆生物炭处理相比对照(CK)可提高土壤pH值0.20~ 1.24,升高幅度大小为CB-500>CB-400>CB-300>CK,随着培养时间的延长,pH值趋于平衡状态;淹水环境下土壤氧化还原电位均迅速下降,且不同处理组间存在显著差异,生...

Effects of corn stover biochar (1% addition) prepared at different temperatures (300,400 and 500 ℃) on pH, oxidation-reduction potential and arsenic and cadmium contents in arsenic-cadmium polluted paddy soil under waterlogged conditon were investigated by indoor soil incubation. The corn stover biochar prepared at 300,400 and 500 ℃ were designated as CB-300, CB-400 and CB-500, respectively, with no addition of CB as blank control. The results showed that pyrolysis temperature has a significant effect on physical and chemical properties of co...