Catalytic role of soils in the transformation of Cr(VI) to Cr(III) in the presence of organic acids containing α-OH groups

被引:77
作者
Tian, Xiaofang [1 ]
Gao, Xianchao [1 ]
Yang, Feng [1 ]
Lan, Yeqing [1 ]
Mao, J. -D. [2 ]
Zhou, Lixiang [3 ]
机构
[1] Nanjing Agr Univ, Coll Sci, Nanjing 210095, Peoples R China
[2] Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23529 USA
[3] Nanjing Agr Univ, Coll Resources & Environm, Nanjing 210095, Peoples R China
基金
中国国家自然科学基金; 美国国家科学基金会;
关键词
Soil; Organic acid; Chromium(VI); Photocatalysis; CHROMIUM(VI) REDUCTION; HEXAVALENT CHROMIUM; CHROMATE REDUCTION; HYDROGEN-SULFIDE; OXIDATION; IRON; REMOVAL; WASTE; VI;
D O I
10.1016/j.geoderma.2010.07.019
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
Chromium contamination in soils and natural waters is a significant environmental concern. Remediation efforts often rely on the conversion from the highly toxic Cr(VI) to Cr(III) which has lower toxicity and less environmental mobility. In the present study, the catalytic role of soils in the transformation of Cr(VI) to Cr (III) by two organic acids containing alpha-OH groups was investigated with or without light. Three types of widely distributed soils in China, Yellow-brown, Chernozem and Red Soils, were examined. The results demonstrated that the presence of soils markedly facilitated the Cr(VI) reduction by organic acids. Without light, the average rate of Cr(VI) reduction by citric acid with 25 g L-1 soil was increased by 3.9 (Red Soil), 17.5 (Chernozem) and 44.8 times (Yellow-brown Soil), respectively as compared with control (without soil). For tartaric acid, it was 2.6 (Red Soil), 4.2 (Chernozem) and 6.6 times (Yellow-brown Soil) as much as the control. With light and at 1.5 g L-1 soil loading, the average rates of Cr(VI) reduction increased from 6.2 (citric acid alone) to 27.8 (Red Soil), 44.6 (Yellow-brown Soil), and 57.7 mu M h(-1) (Chernozem), an increase of 4.5, 7.2 and 9.3 times, respectively. Tartaric acid showed weaker soil-induced enhancement of photochemical reduction of Cr(VI) than citric acid. The reaction rates in all three soil suspensions added with tartaric acid tended to be approximately the same. Our findings suggest that the catalytic role of soils in the reduction of Cr(VI) by organic acids is mainly from Mn(II) in soil without light and from iron ions in soil with light. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:270 / 275
页数:6
相关论文
共 50 条
  • [41] Reductive Remediation of Cr(VI)-Contaminated Soils in the Presence of Zero-Valent Metals and Bimetals
    Khorshid, Mahdieh
    Oustan, Shahin
    Najafi, Nosratollah
    Khataee, Alireza
    IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION, 2022, 41 (04): : 1162 - 1174
  • [42] Enhanced Cr(VI) reduction and As(III) oxidation in ice phase: Important role of dissolved organic matter from biochar
    Dong, Xiaoling
    Ma, Lena Q.
    Gress, Julia
    Harris, Willie
    Li, Yuncong
    JOURNAL OF HAZARDOUS MATERIALS, 2014, 267 : 62 - 70
  • [43] The conditions favourable to oxidation of Cr(III) to Cr(VI) and the presence of chromium forms on the area contaminated by tannery wastes
    Stepniewska, Z
    Bucior, K
    FOLIA HISTOCHEMICA ET CYTOBIOLOGICA, 2001, 39 : 146 - 147
  • [44] Remediation of Cr(VI)-Contaminated Soils by Washing with Low-Molecular-Weight Organic Acids Based on the Distribution of Heavy Metal Species
    Tan, Shaolin
    Xin, Yi
    Liu, Kun
    Zhang, Enzhi
    Li, Shijie
    Zhao, Manqing
    Gao, Huanfang
    ENVIRONMENTAL ENGINEERING SCIENCE, 2022, 39 (01) : 64 - 72
  • [45] The cyanobacterium Synechocystis sp PUPCCC 62: a potential candidate for biotransformation of Cr(VI) to Cr(III) in the presence of sulphate
    Parveen, Shahnaz
    Khattar, J. I. S.
    Singh, D. P.
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2015, 22 (14) : 10661 - 10668
  • [46] Coadsorption and subsequent redox conversion behaviors of As(III) and Cr(VI) on Al-containing ferrihydrite
    Ding, Zecong
    Fu, Fenglian
    Dionysiou, Dionysios D.
    Tang, Bing
    ENVIRONMENTAL POLLUTION, 2018, 235 : 660 - 669
  • [47] Enhanced biotic and abiotic transformation of Cr(VI) by quinone-reducing bacteria/dissolved organic matter/Fe(III) in anaerobic environment
    Huang, Bin
    Gu, Lipeng
    He, Huan
    Xu, Zhixiang
    Pan, Xuejun
    ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS, 2016, 18 (09) : 1185 - 1192
  • [48] The Simultaneous Photooxidation of As(III) and Photoreduction of Cr(VI) in the Presence of Fe(III) in Aqueous Solution by UV/TiO2 Process: Performance and Mechanism
    Luong, Giang Thi Kim
    Ku, Young
    CHEMISTRYSELECT, 2023, 8 (30):
  • [49] The cyanobacterium Synechocystis sp. PUPCCC 62: a potential candidate for biotransformation of Cr(VI) to Cr(III) in the presence of sulphate
    Shahnaz Parveen
    J. I. S. Khattar
    D. P. Singh
    Environmental Science and Pollution Research, 2015, 22 : 10661 - 10668
  • [50] Ruthenium Nanoparticles Supported on Reduced Graphene Oxide: Efficient Catalyst for the Catalytic Reduction of Cr(VI) in the Presence of Amine-Boranes
    Yurderi, Mehmet
    Bulut, Ahmet
    Kanberoglu, Gulsah Saydan
    Kaya, Murat
    Kanbur, Yasin
    Zahmakiran, Mehmet
    CHEMISTRYSELECT, 2020, 5 (23): : 6961 - 6970