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天然有机酸和DTPA组合工艺对Cr(Ⅵ)污染土壤的淋洗修复
六价铬污染土壤 土壤淋洗 天然有机酸 二乙基三胺五乙酸 微观表征
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2020/11/2
针对重庆市某工业废弃地Cr(Ⅵ)污染土壤,分别采用不同浓度草酸、柠檬酸、乙酸组合二乙基三胺五乙酸(DTPA)对其进行淋洗处理,结合XRD和SEM-EDS电镜扫描分析,探究组合淋洗剂对土壤Cr(Ⅵ)残留量和淋洗机理的影响。结果表明:有机酸单一淋洗优劣顺序为草酸>柠檬酸>乙酸(P<0.05),DTPA在5 g·L−1时达到最大淋洗量;组合淋洗顺序对Cr(Ⅵ)去除率具有显著影响(P<0.05...
Effects of EDTA and DTPA on Lead and Zinc Accumulation of Ryegrass
EDTA DTPA Enrichment Plant Ryegrass Lead and Zinc
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2013/3/12
The tailing ponds of lead-zinc mines are artificial environment pollution sources, and also important dangerous sources of heavy metal contamination in lead-zinc mining areas. To study the effects of ...