RISK ASSESSMENT OF HEAVY METAL IN THE SOIL OF AN ABANDONED PESTICIDE FACTORY AND ITS REMEDIATION EFFECT BY CALCINATION

FENG Tugen; ZHENG Liuqin; ZHANG Jian; ZHANG Fuhai; SONG Jian

doi:10.13205/j.hjgc.202202021

Volume 40 Issue 2

Apr. 2022

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FENG Tugen, ZHENG Liuqin, ZHANG Jian, ZHANG Fuhai, SONG Jian. RISK ASSESSMENT OF HEAVY METAL IN THE SOIL OF AN ABANDONED PESTICIDE FACTORY AND ITS REMEDIATION EFFECT BY CALCINATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 132-138. doi: 10.13205/j.hjgc.202202021

Citation:

FENG Tugen, ZHENG Liuqin, ZHANG Jian, ZHANG Fuhai, SONG Jian. RISK ASSESSMENT OF HEAVY METAL IN THE SOIL OF AN ABANDONED PESTICIDE FACTORY AND ITS REMEDIATION EFFECT BY CALCINATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 132-138. doi: 10.13205/j.hjgc.202202021

Citation:

FENG Tugen, ZHENG Liuqin, ZHANG Jian, ZHANG Fuhai, SONG Jian. RISK ASSESSMENT OF HEAVY METAL IN THE SOIL OF AN ABANDONED PESTICIDE FACTORY AND ITS REMEDIATION EFFECT BY CALCINATION[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 132-138. doi: 10.13205/j.hjgc.202202021

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RISK ASSESSMENT OF HEAVY METAL IN THE SOIL OF AN ABANDONED PESTICIDE FACTORY AND ITS REMEDIATION EFFECT BY CALCINATION

doi: 10.13205/j.hjgc.202202021

FENG Tugen^{1,2
,
,},
ZHENG Liuqin^1,2,
ZHANG Jian^1,2,
ZHANG Fuhai^1,2,
SONG Jian^1,2

1. Geotechnical Research Institute, Hohai University, Nanjing 210024, China;
2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210024, China

Received Date: 2021-04-12
Available Online: 2022-04-02
Publish Date: 2022-04-02

Abstract

Abstract

In order to explore the pollution degree of heavy metals in the soil left by an abandoned pesticide factory, and analyze the remediation effect of calcination, this study collected the contaminated soil from an abandoned pesticide factory in Zhejiang Province, and used XRF analyzer to determine the total amount and available contents of heavy metals elements in the soil, discussed the characteristics of heavy metal pollution in the soil. Then the contaminated soil was repaired by calcination, and effect of roasting was evaluated based on potential ecological hazard index method. The results showed that the heavy metal pollution in the site was mainly composed of Zn, Cu, Co, Cr, V and Pb, in which the total and available contents of Zn, V and Pb were lower than the background value of Jinqu basin in Zhejiang Province, while the total and available contents of Cu, Co and Cr all exceeded the background values. The potential ecological risk assessment results based on the available contents of heavy metal showed that the site have reached the fourth level of ecological hazard(very strong). The results of calcination showed that the optimum roasting condition was roasting temperature of 400 ℃ for 1 h. Under this condition, the degree of ecological risk coefficient corresponding to Cu and Cr elements was significantly reduced, and the potential ecological risk assessment results were reduced to the second level(medium). The contaminated site reached a lower harm degree, but further repairing methods were needed to repair the impact of Co on environment. As a simple and efficient remediation technology, calcination can be used not only as a conventional remediation method, but also as an emergency remediation measure for heavy metal contaminated soil.
- soil heavy metals pollution,
- available contents,
- potential ecological risk index method,
- calcination

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References(28)

References

[1]	高艳菲.六六六和滴滴涕污染场地土壤的修复[D].南京:南京农业大学,2011.
[2]	邹明英,苑蓉,张宇,等.不同土地利用方式下土壤重金属污染修复技术研究[J].环境科学与管理,2015,40(2):160-163.
[3]	韩超,申向东,薛慧君,等.镉污染土在水泥-粉煤灰-石灰共同作用下固化效果及孔隙特征[J].农业环境科学学报,2017,36(4):686-693.
[4]	原奇,申向东,薛慧君,等.水泥-生石灰对铬污染土固化效果及微观孔隙特征的影响[J].农业环境科学学报,2018,37(6):1141-1148.
[5]	魏明俐.新型磷酸盐固化剂固化高浓度锌铅污染土的机理及长期稳定性试验研究[D].南京:东南大学,2017.
[6]	肖康,胡杰,崔岩山.复合药剂对不同类型重金属污染土壤的固化修复[J].安全与环境学报,2017,17(2):660-664.
[7]	李晔,方嘉淇.磷酸镁水泥对挥发型重金属Pb²⁺、Cd²⁺固化效果及机理的研究[J].硅酸盐通报,2019,38(3):901-904.
[8]	贺乾嘉.重金属污染土壤的焙烧固定修复技术研究[D].南京:南京农业大学,2014.
[9]	杨振亚,贺乾嘉,凌婉婷.焙烧热处理对土壤中锌、铜的固定作用[J].江苏农业科学,2016,44(9):500-503.
[10]	陈江军,刘波,蔡烈刚,等.基于多种方法的土壤重金属污染风险评价对比:以江汉平原典型场区为例[J].水文地质工程地质,2018,45(6):164-172.
[11]	范拴喜,甘卓亭,李美娟,等.土壤重金属污染评价方法进展[J].中国农学通报,2010,26(17):310-315.
[12]	郭欣,姚苹,杜焰玲,等.典型土地利用方式下土壤重金属污染物分布特征与源解析:以成都平原干溪河流域为例[J].环境工程,2019,37(1):1-5.
[13]	赵敬敬,李长青,向新志,等.三峡库区重庆段水源地沉积物重金属污染特征与生态风险评估[J].中国卫生工程学,2019,18(2):161-165.
[14]	马鹏途,师懿,李雅雯,等.阳新县复垦工矿废弃地土壤重金属污染及潜在生态风险评价[J].安全与环境工程,2019,26(5):108-115.
[15]	LAPS H.An ecological risk index for aquatic pollution control:a sediment logical approach[J].Water Research,1980,14(8):975-100.
[16]	刘春跃,王辉,白明月,等.沈阳市老城区表层土壤重金属分布特征及风险评价[J].环境工程,2020,38(1):167-171.
[17]	窦韦强,安毅,秦莉,等.农田土壤重金属垂直分布迁移特征及生态风险评价[J].环境工程,2021,39(2):166-172.
[18]	杨梦丽,叶明亮,马友华,等.基于重金属有效态的农田土壤重金属污染评价研究[J].环境监测管理与技术,2019,31(1):10-13.
[19]	任丽敏,何江,吕昌伟,等.达里诺尔湖生物有效态重金属的形态分布及生态风险评价[J].农业环境科学学报,2013,32(2):338-346.
[20]	李燕,魏雨露,夏龙飞.便携式X荧光光谱仪在场地重金属污染调查中的应用研究[C]//《环境工程》2019年全国学术年会,北京,2019.
[21]	曾雨.某铀尾矿库周边土壤重金属污染评价[D].绵阳:西南科技大学,2018.
[22]	徐争启,倪师军,庹先国,等.潜在生态危害指数法评价中重金属毒性系数计算[J].环境科学与技术,2008,31(2):112-115.
[23]	窦智勇,程建华,周平,等.基于总量及有效态的铜陵矿区农田土壤重金属生态风险评价[J].环境污染与防治,2015,37(11):6-10.
[24]	汪庆华,董岩翔,周国华,等.浙江省土壤地球化学基准值与环境背景值[J].生态与农村环境学报,2007,23(2):81-88.
[25]	杨潞,张玉,张智,等.规模化猪场灌区土壤重金属污染特征及风险评价:以重庆市某种猪场为例[J].农业环境科学学报,2018,37(10):2166-2174.
[26]	SPALDING B P.Fixation of radionuclides in soil and minerals by heating[J].Environmental Science & Technology,2001,35(21):4327-4333.
[27]	OBRADOR A,RICO M I,ALVAREZ J M,et al.Influence of thermal treatment on sequential extraction and leaching behaviour of trace metals in a contaminated sewage sludge[J].Bioresource Technology,2001,76(3):259-264.
[28]	WANG P,HU X,HE Q,et al.Using calcination remediation to stabilize heavy metals and simultaneously remove polycyclic aromatic hydrocarbons in soil[J].International Journal of Environmental Research and Public Health,2018,15(8):1731.