沼渣型土壤调理剂用于修复Cu污染效果研究
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摘要
原位钝化是修复重金属污染土壤的重要途径之一,通过钝化降低土壤中重金属有效态含量,从而减少重金属迁移及对植物的毒害。文章选用沼渣、牡蛎壳粉为原料,制备了一种有机-无机符合型沼渣土壤调理剂,研究这种土壤调理剂对水中的Cu~(2+)吸附效果和对土壤中铜的钝化效果。研究表明:这种土壤调理剂对水中的Cu~(2+)吸附效量能达到2.5 mg·g~(-1)。
In-situ passivation is one of the important ways to remediate heavy metal contaminated soils. It can reduce the content of available heavy metals in soils,thereby reducing the damage degree from heavy metal to plants. A kind of organic-inorganic soil conditioner was prepared by using biogas residue and oyster shell powder as raw materials. The Cu~(2+) adsorption in water and copper passivation in soil by this soil conditioner were studied. The results showed that the Cu~(2+ )adsorption efficiency of this soil conditioner in water could reach 2.5 mg·g~(-1), and application in soil could improve the soil pH value and reducing the available Cu content significantly.
In-situ passivation is one of the important ways to remediate heavy metal contaminated soils. It can reduce the content of available heavy metals in soils,thereby reducing the damage degree from heavy metal to plants. A kind of organic-inorganic soil conditioner was prepared by using biogas residue and oyster shell powder as raw materials. The Cu~(2+) adsorption in water and copper passivation in soil by this soil conditioner were studied. The results showed that the Cu~(2+ )adsorption efficiency of this soil conditioner in water could reach 2.5 mg·g~(-1), and application in soil could improve the soil pH value and reducing the available Cu content significantly.
引文
[1] 韦树燕,黄宇妃,宋波.重金属污染土壤化学钝化剂应用研究进展[J].资源节约与环保,2013,(06):143-144.
[2] 邓勤,陆来仙,张瑞瑞.牡蛎壳粉对Cu2+吸附性能的研究[J].广州化工,2016,44(23):63-65.
[3] Diels L,Lelie N,Bastiaens L.New developments in treatment of heavy metal contaminated soils[J].Rev Environ Sci Bio/Technol,2002,(1) :75-82.
[4] Brown S L,Chaney R L,Hallfrish J G,et al.In situ soil treatments to re-duce the bioavailability of lead,zinc and cadmium[J].J Environ Qual,2004,33:522-531.
[5] 郑小真,刘锦秀.不同改良剂对土壤环境中重金属污染的原位钝化效应[J].海峡科学,2008,(06):27-28.
[6] 黄家森,牟海燕,赖西聪,等.重金属污染土壤原位钝化技术研究进展[J].四川化工,2018,21(02):9-12.
[7] 刘向林,王丽霞,吴冬悦,等.长期施用沼液对土壤及产品的影响[J].中国沼气,2018,36(02):87-91.
[8] 张曦,王旭.四种土壤调理剂对镉、铅的吸附效果研究[J].中国土壤与肥料,2012,(04):6-10.
[9] 王立群,罗磊,马义兵,等.不同钝化剂和培养时间对Cd污染土壤中可交换态Cd的影响[J].农业环境科学学报,2009,28(06):1098-1105.
[10] HJ 485-2009,水质铜的测定二乙基二硫代氨基甲酸钠分光光度法[S].
[11] NY/T890-2004,土壤有效态锌、锰、铁、铜含量的测定二乙三胺五乙酸(DTPA)浸提法[S].
[12] GB/T17138-1997,土壤质量铜、锌的测定火焰原子吸收分光光度法[S].
[13] Jianshuo SHI,Junfang YANG,Liying WANG,et al.Application Status and Prospects of Biogas Fertilizer in Modern Agricultural Production[J].Asian Agricultural Research,2018,10(07):64-68.
[14] 席江,肖伟.土壤钝化剂对施用沼渣的黑麦草中重金属积累的影响[J].中国沼气,2018,36(04):70-73.
[2] 邓勤,陆来仙,张瑞瑞.牡蛎壳粉对Cu2+吸附性能的研究[J].广州化工,2016,44(23):63-65.
[3] Diels L,Lelie N,Bastiaens L.New developments in treatment of heavy metal contaminated soils[J].Rev Environ Sci Bio/Technol,2002,(1) :75-82.
[4] Brown S L,Chaney R L,Hallfrish J G,et al.In situ soil treatments to re-duce the bioavailability of lead,zinc and cadmium[J].J Environ Qual,2004,33:522-531.
[5] 郑小真,刘锦秀.不同改良剂对土壤环境中重金属污染的原位钝化效应[J].海峡科学,2008,(06):27-28.
[6] 黄家森,牟海燕,赖西聪,等.重金属污染土壤原位钝化技术研究进展[J].四川化工,2018,21(02):9-12.
[7] 刘向林,王丽霞,吴冬悦,等.长期施用沼液对土壤及产品的影响[J].中国沼气,2018,36(02):87-91.
[8] 张曦,王旭.四种土壤调理剂对镉、铅的吸附效果研究[J].中国土壤与肥料,2012,(04):6-10.
[9] 王立群,罗磊,马义兵,等.不同钝化剂和培养时间对Cd污染土壤中可交换态Cd的影响[J].农业环境科学学报,2009,28(06):1098-1105.
[10] HJ 485-2009,水质铜的测定二乙基二硫代氨基甲酸钠分光光度法[S].
[11] NY/T890-2004,土壤有效态锌、锰、铁、铜含量的测定二乙三胺五乙酸(DTPA)浸提法[S].
[12] GB/T17138-1997,土壤质量铜、锌的测定火焰原子吸收分光光度法[S].
[13] Jianshuo SHI,Junfang YANG,Liying WANG,et al.Application Status and Prospects of Biogas Fertilizer in Modern Agricultural Production[J].Asian Agricultural Research,2018,10(07):64-68.
[14] 席江,肖伟.土壤钝化剂对施用沼渣的黑麦草中重金属积累的影响[J].中国沼气,2018,36(04):70-73.
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