| 制革行业土壤铬污染特征及其影响因素 |
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| 引用本文： | 金晓丹,田永强,吴昊,陈何潇,王兴润,程金平.制革行业土壤铬污染特征及其影响因素[J].环境工程,2021,39(12):206. |
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| 作者姓名： | 金晓丹 田永强 吴昊 陈何潇 王兴润 程金平 |
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| 作者单位： | 上海交通大学中国城市治理研究院,上海200030;广西壮族自治区环境保护科学研究院,南宁530022;上海交通大学国际与公共管理学院,上海200030;四川大学,成都610065;广西壮族自治区环境保护科学研究院,南宁530022;中国环境科学研究院,北京100012;上海交通大学中国城市治理研究院,上海200030 |
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| 基金项目： | 上海交通大学中国城市治理研究院“城市治理与大数据”专项重点课题资助(SJTU-2019UGBD-01)。科技计划项目“场地土壤污染成因与治理技术”(2018YFC1802201-01) |
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| 摘 要： | 为了解制革场地土壤Cr(Ⅵ)污染情况和分布特征,选取我国3种典型制革企业用地的土壤和污泥样品,分析了制革行业土壤铬污染特征。结果表明:调查的Ⅰ型制革企业场地土壤Cr(Ⅵ)含量最高为48 mg/kg,超过GB 36600—2018《土壤环境质量建设用地土壤污染风险管控标准(试行)》筛选值,存在环境风险。调查的Ⅱ型制革企业环保设施完善,场地土壤Cr(Ⅵ)含量低于GB 36600—2018筛选值,土壤Cr(Ⅵ)环境风险低。Ⅱ型制革企业危险废物暂存间污泥总铬含量高达85377 mg/kg, Cr(Ⅵ)含量最高为1455 mg/kg。调查的Ⅲ型制革企业场地泥土混合物总铬含量为1564~28000 mg/kg, Cr(Ⅵ)含量最高为250 mg/kg,相较于Ⅰ型和Ⅱ型制革企业场地,受到严重污染。总体上,制革企业用地土壤铬污染物以Cr(Ⅲ)形态为主,Cr(Ⅵ)形态占比少,不足1%。
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| 关 键 词： | 制革行业场地 土壤 污泥 六价铬 管理 |
| 收稿时间： | 2020-02-19 |
CHARACTERISTICS OF CHROMIUM POLLUTION AND ITS INFLUENCING FACTORS IN LEATHER INDUSTRY |
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| Institution: | 1. China Institute for Urban Governance, Shanghai Jiaotong University, Shanghai 200030, China;2. Environmental Protection Research Institute of Guangxi, Nanning 530022, China;3. School of International and Public Affairs, Shanghai Jiaotong University, Shanghai 200030, China;4. Sichuan University, Chengdu 610065, China;5. Chinese Research Academy of Environmental Sciences, Beijing 100012,China |
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| Abstract: | In order to understand the soil Cr(Ⅵ) pollution and distribution characteristics in the sludge and soil of tanning site, soil and sludge samples of three typical site in China were selected to analyze the soil Cr(Ⅵ) pollution characteristics of tanning industry. The results showed that the highest content of soil Cr(Ⅵ) in the investigated type Ⅰ tanning enterprise's site was 48 mg/kg, which exceeded the screening value of the standard of soil pollution risk control for construction land(GB 36600—2018). There was pollution and environmental risk in Cr(Ⅵ). The investigated type Ⅱ tanning enterprise's site had complete environmental protection facilities, and the content of soil Cr(Ⅵ) was generally low, lower than the screening value of GB 36600—2018, with a lower environmental risk. The total chromium content of sludge in the temporary storage room of hazardous waste in type Ⅱ tanning enterprises' s site was as high as 85377 mg/kg, and the highest Cr(Ⅵ) content was 1455 mg/kg. The total chromium content of soil mixture in type Ⅲ tanning enterprise's site investigated ranged from 1564 to 28000 mg/kg, and the highest Cr(Ⅵ) content was 250 mg/kg. Compared with type Ⅰ and type Ⅱ tanning sites, it was seriously polluted. In general, Cr(Ⅲ) was the main form of soil chromium in tanning sites, and Cr(Ⅵ) accounted for less than 1%. |
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