煤基半焦对重金属土壤中铬和镉的原位钝化及作用机制分析OACSTPCD
In-situ immobilization and mechanism of coal-based semi-coke on chromium and cadmium in contaminated soil
工业化和城市化的快速发展对土壤造成严重的重金属污染,其中由于铬、镉的毒性强,对环境的危害极大.以资源丰富的石河子煤和乌鲁木齐煤为原料经热解制得半焦,将其作为铬和镉污染土壤的钝化材料,以实现重金属污染土壤的修复和改良.利用热重分析得到两种煤样热解的特征温度;采用N2 等温吸附法对半焦的孔隙结构进行了表征.通过重金属浸提实验,研究了半焦钝化剂作用时间和添加量对单一污染土壤及复合污染土壤中重金属有效态含量的影响.结果表明:乌鲁木齐煤基半焦具有较适宜重金…查看全部>>
The rapid growth of industrialization and urbanization has caused serious heavy metal pollution in soil,among which chromium and cadmium are highly toxic and detrimental to the environment.In this study,semi-coke was prepared through pyrolysis by utilizing the abun-dant resources of Shihezi coal and Urumqi coal.The semi-coke was then used as immobilization material for chromium and cadmium-contaminated soil,with the goal of remediating and impro-ving the hea…查看全部>>
陈东享;朱佳媚;刘冰倩;岳晓明
中国矿业大学化工学院,221116 江苏徐州中国矿业大学化工学院,221116 江苏徐州中国矿业大学化工学院,221116 江苏徐州中国矿业大学化工学院,221116 江苏徐州
化学工程
土壤修复铬镉煤基半焦重金属有效态
soil remediationchromiumcadmiumcoal-based semi-cokeavailable heavy metals
《煤炭转化》 2024 (1)
60-70,11
徐州市重点研发计划(社会发展)项目(KC22285)、中央高校基本科研业务费专项项目(2019XKQYMS14).
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