|本期目录/Table of Contents|

[1]赵伟,丁弈君,孙泰朋,等.生物质炭对汞污染土壤吸附钝化的影响[J].江苏农业科学,2017,45(11):192-196.
 Zhao Wei,et al.Effects of biomass carbon on adsorption and passivation of mercury contaminated soil[J].Jiangsu Agricultural Sciences,2017,45(11):192-196.
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生物质炭对汞污染土壤吸附钝化的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年11期
页码:
192-196
栏目:
资源与环境
出版日期:
2017-06-05

文章信息/Info

Title:
Effects of biomass carbon on adsorption and passivation of mercury contaminated soil
作者:
赵伟 丁弈君 孙泰朋 田宗泽 郝帅 王宏燕 孙岩 高敬尧 袁佳慧
东北农业大学,黑龙江哈尔滨 150030
Author(s):
Zhao Weiet al
关键词:
生物质炭土壤淋溶液甲基汞吸附特性土壤修复
Keywords:
-
分类号:
X53
DOI:
-
文献标志码:
A
摘要:
研究生物质炭对黑土土壤Hg污染的吸附、钝化作用。以受汞污染土壤为研究对象,以生物质炭不同梯度施用量为处理,通过盆栽试验采用HNO3-H2SO4混合酸水浴一次消解的方法对土壤中Hg的总量、淋溶液以及植物中重金属的含量进行研究,采用HPLC反相C18柱分离、ICP-MS检测甲基汞含量。添加HgCl2 6 mg/kg后,生物质炭添加量1%处理土壤中Hg含量比例由57.9%提高到66.1%,油菜中汞含量所占比例由14.5%下降到11%,降低3.5百分点;淋溶液中汞含量占比由27.5%下降到22.9%,降低4.4百分点;土壤中的甲基汞含量下降到34.9%。以外源添加HgCl2 6 mg/kg后,进入土壤中的汞含量由55.00%上升到77.67%,植物中汞含量由14.67%下降到2.77%,淋溶液中汞含量由27.1%下降到16.7%。生物质炭的添加对Hg在土壤、植物体和淋溶液中的分布具有显著的影响,随着生物质炭添加量的增加,钝化在土壤中的重金属Hg越多,有效降低了植物体内、淋溶液的重金属Hg的含量,降低了土壤中甲基汞的含量,降低了土壤毒性,提高重金属Hg的钝化率,增加了土壤中重金属Hg的含量,生物质炭的施用可有效修复和改良重金属污染土壤。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2016-03-05
基金项目:国家环境部公益项目(编号:201309036)。
作者简介:赵伟(1971—),女,河北乐亭人,博士,教授,主要从事农业生态学和土壤生态学的研究。E-mail:niersi7105@sina.com。
通信作者:王宏燕,教授,主要从事生态学方面的研究。E-mail:why220@126.com。
更新日期/Last Update: 2017-06-05