Selecting Ferric Chloride as an Environmental-friendly Washing Agent for Heavy Metal Cadmium in Farmland Soil

HU Yuan; LIN Li; HU Yan-ping; LI Rui

doi:10.11988/ckyyb.20180145

PDF(1536 KB)

Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (9) : 23-28. DOI: 10.11988/ckyyb.20180145

WATER RESOURCES AND ENVIRONMENT

Selecting Ferric Chloride as an Environmental-friendly Washing Agent for Heavy Metal Cadmium in Farmland Soil

HU Yuan^1,2, LIN Li^1,2, HU Yan-ping^1,2, LI Rui^1,2

Author information +

History +

Abstract

Soil washing is an effective approach for the remediation of heavy metal contaminated soil. Soil washing agent is a crucial factor which directly affects the efficiency of washing. We examined the performances of four washing agents, inclusive of acetic acid, citric acid, CaCl₂, and FeCl₃, in purifying farmland soil slightly contaminated by Cadmium (Cd) and the influential factors. We found that the effect of FeCl₃ is the optimum, followed by citric acid, acetic acid, and CaCl₂ in sequence.The H⁺ hydrolyzed from the exchange between Fe₃⁺ from FeCl₃ solution and Cd²⁺ from the soil stimulated the dissolution of carbonate bounded form of Cd; Cl^- together with Cd²⁺ could also form a stable chelate. In optimized operation condition (solid-liquid ratio at 1∶5, and washing for 4 hours), the maximum removal rate of Cd was 30.24%, 24.62%,24.82%, and 81.90% by acetic acid, citric acid, CaCl₂, and FeCl₃, respectively. The pH value of soil had large impact on the washing effect. Apart from CaCl₂,the washing effects of the other three washing agents all declined with the rising of pH value within 2.5-5.0, among which the washing effect of FeCl₃ underwent the most severe decline.

Key words

farmland soil / cadmium contamination / soil washing / FeCl₃ / organic acids

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

HU Yuan, LIN Li, HU Yan-ping, LI Rui. Selecting Ferric Chloride as an Environmental-friendly Washing Agent for Heavy Metal Cadmium in Farmland Soil[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(9): 23-28 https://doi.org/10.11988/ckyyb.20180145

References

[1] 孙庆瑚,汪再娟,金锋,等.环境镉污染对人体健康影响的研究.医学研究通讯,2003(11) :20-21.
[2] LI Xiao-yu, LIU Li-juan, WANG Yu-gang,et al. Heavy Metal Contamination of Urban Soil in an Old Industrial City (Shenyang) in Northeast China. Geoderma, 2013, 192(1): 50-58.
[3] WANG Shuai-long, XU Xiang-rong, SUN Yu-xin,et al. Heavy Metal Pollutionin Coastal Areas of South China: A Review.Marine Pollution Bulletin, 2013, 76(1/2): 7-15.
[4] 陈怀满. 土壤-植物系统中的重金属污染.北京: 北京出版社,1996.
[5] 曾咏梅,毛昆明,李永梅.土壤中镉的危害及其防治对策.云南农业大学学报,2005,20(3):360-365.
[6] ABUMAIZAR R J, SMITH E H. Heavy Metal Contaminants Removal by Soil Washing. Journal of Hazardous Materials, 1999, 70(1/2): 71-86.
[7] VAN BENSCHOTEN J E, MATSUMOTO M R, YOUNG W H. Evaluation and Analysis of Soil Washing for Seven Lead-contaminated Soils. Journal of Environmental Engineering, 1997, 123(3): 217-224.
[8] REED B E, CARRIERE P C, MOORE R. Flushing of a Pb(Ⅱ) Contaminated Soil Using HCl, EDTA, and CaCl₂. Journal of Environmental Engineering, 1996, 122(1): 48-50.
[9] 曾敏,廖柏寒,曾清如,等. 3种萃取剂对土壤重金属的去除及其对重金属有效性的影响. 农业环境科学学报,2006,25(4):979-982.
[10] 孙涛,毛霞丽,陆扣萍,等. 柠檬酸对重金属复合污染土壤的浸提效果研究.环境科学学报, 2015,35(8):2573-2581.
[11] 陈春乐,王果,王珺玮. 3 种中性盐与HCl复合淋洗剂对Cd污染土壤淋洗效果研究.安全与环境学报, 2014,14(5) : 205-210.
[12] 陈海凤,莫良玉,范稚莲. 有机酸对重金属污染耕地土壤的修复研究. 现代农业科学,2009,16(3):141-143.
[13] MAKINO T, SUGAHARA K, SAKURAI Y,et al. Restoration of Cadmium Contamination in Paddy Soils by Washing with Chemicals: Selection of Washing Chemicals. Environmental Pollution, 2006, 144(1):2-10.
[14] MAKINO T, KAMIYA T, TAKANO H, et al. Restoration of Cadmium Contaminated Paddy Soils by Washing with Calcium Chloride: Verification of On-site Washing. Environmental Pollution, 2007, 147 (1):112-119.
[15] MAKINO T, KAMIYA T, TAKANO H,et al. Restoration of Cadmium Contaminated Paddy Soils by Washing with Chemicals: Effect of Soil Washing on Cadmium Uptake by Soybean. Chemosphere, 2007, 67(4):748-754.
[16] ISOYAMA M,WADA S I.Remediation of Pb-contaminated Soils by Washing with Hydrochloric Acid and Subsequent Immobilization with Calcite and Allophonic Soil. Journal of Hazardous Materials, 2007,143: 636-642.
[17] 史志鹏.低分子量有机酸对两种污染土壤铅释放的影响.武汉:华中农业大学,2012.
[18] 罗冰,张清东. 柠檬酸浸出土壤中铜、锌的优化设计.环境工程学报,2013,7(9):3629-3634
[19] MOON D H,LEE J R, WAZNE M,et al.Assessment of Soil Washing for Zn Contaminated Soils Using Various Washing Solutions. Journal of Industrial and Engineering Chemistry, 2012, 18(2): 822-825 .
[20] 易龙生,王文燕,刘阳,等.柠檬酸、EDTA 和茶皂素对重金属污染土壤的淋洗效果[J].安全与环境学报,2014,14(1): 225-228.
[21] 李丹丹,郝秀珍,周东美.柠檬酸土柱淋洗法去除污染土壤中Cr的研究. 农业环境科学学报, 2013,32(10): 1999-2004.
[22] 梁金利,蔡焕兴,段雪梅,等. 有机酸土柱淋洗法修复重金属污染土壤. 环境工程学报, 2012, 6(9):3339-3343.
[23] GB/T 17141—1997,土壤质量铅、镉的测定石墨炉原子吸收分光光度法.北京:中国环境出版社,1997.
[24] HJ 700—2014,水质 65种元素的测定电感耦合等离子体质谱法.北京:中国环境出版社,2014.
[25] 鲁如坤. 土壤农业化学分析方法. 北京:中国农业出版社, 1999.
[26] MAKINO T, TAKANO H, KAMIYA T, et al. Restoration of Cadmium Contaminated Paddy Soils by Washing with Ferric Chloride: Cd Extraction Mechanism and Bench-scale Verification. Chemosphere, 2008, 70(6):1035-1043.
[27] YANG Z, ZHANG S, LIAO Y,et al. Remediation ofHeavy Metal Contamination in Calcareous Soil by Washing with Reagents: A Column Washing. Procedia Environmental Sciences, 2012, 16(4): 778-785.
[28] TOKUNAGA S, HAKUTA T. Acid Washing and Stabilization of an Artificial Arsenic Contaminated Soil. Chemosphere, 2002, 46(1): 31-38.
[29] 罗希,林莉,李青云.镉污染稻田土壤土柱淋洗修复研究.raybet体育在线院报,2017,34(6):24-28,34.
[30] 严世红. 酸化土壤中镉化学形态特征与钝化研究.淮南:安徽理工大学,2014.
[31] 李玉姣,温雅,郭倩楠,等. 有机酸和FeCl₃复合浸提修复 Cd、Pb污染农田土壤的研究.农业环境科报,2014,33(12):2335-2342.
[32] 杨忠芳,陈岳龙,钱鑂,等. 土壤 pH 对镉存在形态影响的模拟实验研究.地学前缘, 2005,12(1):252-260.
[33] 王叶.柠檬酸废水作为淋洗剂对土壤重金属镉的协同去除研究.青岛:中国石油大学,2014.