有色金属冶炼厂镉污染土壤淋洗除镉

删除或更新信息，请邮件至freekaoyan#163.com(#换成@)

本站小编 Free考研考试/2021-12-31

Cadmium removal from contaminated soil inside non-ferrous metal smelter by washing

GUO Wei^1,,
ZHANG Huanzhen^1,,
YIN Xiaoxue¹,
WANG Liu²,
WANG Zhili²
1.School of Water Resources and Environment, China University of GeosciencesBeijing, Beijing 100083, China
2.Beijing Zhongdihongke Environmental Science and Technology Co.Ltd., Beijing 100011, China

-->

摘要
HTML全文
图(0)表(0)
参考文献(24)
相关文章
施引文献
资源附件(0)
访问统计

摘要:以云南省某废弃有色金属冶炼厂镉污染土壤为研究对象，分别采用单一淋洗和复合淋洗方法探究盐酸、FeCl3、鼠李糖脂淋洗剂及淋洗条件对土壤中镉去除效果的影响。结果表明，在盐酸(1 mol·L-1)+鼠李糖脂(2%)配比为2∶1，液固比为8∶1，淋洗时间为24 h的条件下，土壤中镉的去除率可达86.78%，可将镉污染强度为1 180 mg·kg-1的土壤修复至满足《土壤环境质量建设用地土壤污染风险管控标准》(GB 36600-2018)第二类用地管制值(Cd-1)的要求。该方法可有效去除土壤中活性态镉，使土壤生物毒性明显降低。
关键词: 镉污染/
土壤淋洗/
有色金属矿山土壤整治

Abstract:For cadmium contaminated soil inside an abandoned non-ferrous metal smelter in Yunnan, the washing ways with single and composite eluent were used to study the effects of hydrochloric acid, FeCl3, rhamnolipid, and washing conditions on cadmium removal from the soil. Results show that 86.78% cadmium could be removed at hydrochloric acid (1 mol·L-1) and rhamnolipid (2%) ratio of 2∶1, the liquid-solid ratio of 8:1, and the washing time of 24 h. Consequently, the contaminated soil with 1 180 mg·kg-1 Cd could be remedied to meet the land use control value of category II (Cd content -1) in Risk Control Standard of Soil Pollution in Construction Land of Soil Environmental Quality (GB 36600-2018). This method could effectively remove the active Cd species from the soil and significantly reduce the soil biotoxicity.
Key words:cadmium pollution/
soil washing/
soil remediation in non-ferrous metal mine.

加载中

[1]	ZAJI M S, ZAKARIA A, EISSA E M, et al. Effect of cadmium toxicity on vertebrates[J]. Electronic Physician, 2016, 8(2):1964-1965.
[2]	卢红玲, 肖光辉, 刘青山, 等. 土壤镉污染现状及其治理措施研究进展[J]. 南方农业学报, 2014, 45(11): 1986-1993.
[3]	张影, 杨郸丹, 卢忠林. 广西龙江镉污染事件及反思[J]. 化学教育, 2013, 34(6): 1-2.
[4]	PARK J, JUNG Y, HAN M, et al. Simultaneous removal of cadmium and turbidity in contaminated soil-washing water by DAF and electroflotation[J]. Water Science & Technology, 2002, 46(11/12): 225-230.
[5]	周国华, 黄怀曾, 何红蓼. 重金属污染土壤植物修复及进展[J]. 环境工程学报, 2002, 3(6): 33-39.
[6]	LU J H, YANG X P, MENG X P, et al. Predicting cadmium safety thresholds in soils based on cadmium uptake by Chinese cabbage[J]. Pedosphere, 2017, 27(3): 475-481.
[7]	孙英杰, 宋菁, 何亚红. 重金属污染土壤修复清洗剂的研究进展[J]. 青岛理工大学学报, 2009, 30(5): 75-78.
[8]	李玉双, 胡晓钧, 孙铁珩, 等. 污染土壤淋洗修复技术研究进展[J]. 生态学杂志, 2011, 30(3): 596-602.
[9]	巩宗强, 李培军, 台培东, 等. 污染土壤的淋洗法修复研究进展[J]. 环境工程学报, 2002, 3(7): 45-50.
[10]	可欣, 李培军, 巩宗强, 等. 重金属污染土壤修复技术中有关淋洗剂的研究进展[J]. 生态学杂志, 2004, 23(5): 145-149.
[11]	MOUTSATSOU A, GREGOU M, MATSAS D, et al. Washing as a remediation technology applicable in soils heavily polluted by mining-metallurgical activities[J]. Chemosphere, 2006, 63(10): 1632-1640.
[12]	冯静. 铅锌厂周边农田重金属污染土壤的化学淋洗修复及其应用潜力初探[D]. 杨凌: 西北农林科技大学, 2015.
[13]	WUANA R A, OKIEIMEN F E, IMBORYUNGU J A. Removal of heavy metals from a contaminated soil using organic chelating acids[J]. International Journal of Environmental Science & Technology, 2010, 7(3): 485-496.
[14]	农泽喜, 覃朝科, 卢宗柳, 等. FeCl₃对Cd污染农田土壤的淋洗实验研究[J]. 科学技术与工程, 2017, 17(6): 317-321.
[15]	王显海, 刘云国, 曾光明, 等. EDTA溶液修复重金属污染土壤的效果及金属的形态变化特征[J]. 环境科学, 2006, 27(5): 1008-1012.
[16]	WEI M, CHEN J J, WANG X W. Removal of arsenic and cadmium with sequential soil washing techniques using Na₂EDTA, oxalic and phosphoric acid: Optimization conditions, removal effectiveness and ecological risks[J]. Chemosphere, 2016, 156: 252-261.
[17]	王盼盼. 鼠李糖脂的发酵生产以及去除污染土壤中铅和镉的研究[D]. 无锡: 江南大学, 2016.
[18]	MAKINO T, SUGAHARA K, SAKURAI Y, et al. Remediation of cadmium contamination in paddy soils by washing with chemicals: Selection of washing chemicals [J]. Environmental Pollution, 2006, 144(1): 2-10.
[19]	中国人民共和国生态环境部, 中国国家市场监督管理总局. 土壤环境质量建设用地土壤污染风险管控标准: GB 36600-2018 [S]. 北京: 中国环境科学出版社, 2018.
[20]	URE A M, QUEVAUVILLER P, MUNTAU H, et al. Speciation of heavy metals in soils and sediments. An account of the improvement and harmonization of extraction techniques undertaken under the auspices of the BCR of the Commission of the European Communities[J]. International Journal of Environmental Analytical Chemistry, 1993, 51(1/2/3/4): 135-151.
[21]	胡德新, 武素茹, 刘跃勇, 等. 改进BCR法-电感耦合等离子体发射光谱法测定矿产品堆场土壤中镉、砷、铅的化学形态[J]. 岩矿测试, 2014(3): 369-373.
[22]	WOO-SEUNG K, JONG-CHAN Y, EUN‐KI J, et al. Stepwise sequential extraction of As, Cu, and Pb contaminated paddy soil[J]. Clean - Soil, Air, Water, 2015, 42(12): 1785-1789.
[23]	刘仕翔, 胡三荣, 罗泽娇. EDTA和CA复配淋洗剂对重金属复合污染土壤的淋洗条件研究[J]. 安全与环境工程, 2017, 24(3): 77-83.
[24]	黎诗宏, 蒋卉, 朱梦婷, 等. 有机酸对成都平原镉污染土壤的淋洗效果[J]. 环境工程学报, 2017, 11(5): 3227-3232.

Turn off MathJax -->
WeChat

点击查看大图

计量

文章访问数:1353
HTML全文浏览数:1271
PDF下载数:158
施引文献:0

出版历程

刊出日期:2019-02-02

-->