水化氯铝酸钙对土壤铬的钝化修复及风险评估

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Abstract Five typical Chinese soils, including brown soil, red soil, yellow soil, black soil and cinnamon soil, were collected and artificially contaminated with Cr(VI) to a concentration of 80mg/kg. Hydrocalumite, a promising layered double hydroxide, was applied as a first attempt to immobilize the Cr-contaminated soils. The remediation effects were comprehensively evaluated on soil basic physicochemical properties, and fractionation, ecological risk and health risk of soil Cr. The relevant mechanisms and cost were discussed. Results showed that hydrocalumite significantly increased soil pH, and effectively reduced the Cr activity (59.09%~79.22%), ecological risk (14.17%~57.66%) and health (carcinogenic) risk (13.04%~63.04% in gastric phase and 22.73%~56.60% in small intestinal phase) of soil Cr. In addition to active Cr fraction, inactive Cr fraction also contributed to its ecological and health risks before and after remediation. Hydrocalumite could not only transform active Cr fraction into inactive precipitated fraction for a partial reduction or a complete elimination of its ecological risk or health risk, but also further suppress the dissolution of other inactive Cr fraction in certain soils in the TCLP or in vitro test. Regarding the reagent cost, a reasonable 6.4CNY could cover the remediation of 1m³ of actual construction land with a Cr(VI) concentration of 80mg/kg, under the relatively optimum dosage (m_Cr:m_{hydrocalumite}=1:20). As a new-type immobilizing agent for Cr-contaminated soils, hydrocalumite is highly expected to make contributions to the improvement of soil quality and public health.

Key words： layered double hydroxide hydrocalumite soil Cr immobilization remediation

Received: 03 September 2020

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X53

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	CHEN Xiao-chen
	YAO Cong-cong
	ZHAO Tong
	XU Jia-yan
	BU Ya
	ZHANG Wen-qing
	LIU Yuan-yuan
	DIAO Guo-wang
	ZHANG Jian-yu

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CHEN Xiao-chen,YAO Cong-cong,ZHAO Tong等. Immobilization remediation of Cr-contaminated soils by hydrocalumite and the relevant risk assessment[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(4): 1790-1798.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I4/1790

[1]	Dhal B, Thatoi H N, Das N N, et al. ChemInform abstract:Chemical and microbial remediation of hexavalent chromium from contaminated soil and mining/metallurgical solid waste:A review[J]. Journal of Hazardous Materials, 2013,250-251(30):272-291.
[2]	刘鹏宇,王晓琴,常青,等.铝炭微电解去除废水中六价铬的可行性研究[J]. 中国环境科学, 2019,39(10):4164-4172. Liu P Y, Wang X Q, Chang Q, et al. Feasibility study on the removal of chromium(Ⅵ) containing from heavy metal wastewater by aluminum-carbon micro electrolysis[J]. China Environment Science, 2019,39(10):4164-4172.
[3]	Shahid M, Shamshad S, Rafiq M, et al. Chromium speciation, bioavailability, uptake, toxicity and detoxification in soil-plant system:A review[J]. Chemosphere, 2017,178(7):513-533.
[4]	张饮江,相元泉,鲁仙,等.零价铁激活过硫酸盐降解水中铬黑T特性[J]. 中国环境科学, 2020,40(2):653-660. Zhang Y J, Xiang Y Q, Lu X, et al. Characteristics on the Eriochrome black T(EBT) degradation in aquatics by Fe/persulfate system[J]. China Environment Science, 2020,40(2):653-660.
[5]	Broadway A, Cave M R, Wragg J, et al. Determination of the bioaccessibility of chromium in Glasgow soil and the implications for human health risk assessment[J]. Science of the Total Environment, 2010,409(2):267-277.
[6]	Shen Z T, Jin F, O'Connor D, et al. Solidification/stabilization for soil remediation:An old technology with new vitality[J]. Environmental Science and Technology, 2019,53(20):11615-11617.
[7]	Bolan N, Kunhikrishnan A, Thangarajan R, et al. Remediation of heavy metal(loid)s contaminated soils-To mobilize or to immobilize?[J]. Journal of Hazardous Materials, 2014,26(6):141-166.
[8]	Kumpiene J, Lagerkvist A, Maurice C. Stabilization of As, Cr, Cu, Pb and Zn in soil using amendments:A review[J]. Waste Management, 2008,28(1):215-225.
[9]	陈志明.不同改良剂修复重金属铬污染土壤的研究[D]. 泰安:山东农业大学, 2010. Chen Z M. Study on the remediation of different ameliorants in heavy mental Cr contaminated soil[D]. Taian:Shandong Agricultural University, 2010.
[10]	Zhong L, He X, Qu J, et al. Precursor preparation for Ca-Al layered double hydroxide to remove hexavalent chromium coexisting with calcium and magnesium chlorides[J]. Journal of Solid State Chemistry, 2017,24(5):200-206.
[11]	Li H, Yang X Y, Zheng W K, et al. Immobilization of high concentration hexavalent chromium via core-shell structured lightweight aggregate:a promising soil remediation strategy[J]. Chemical Engineering Journal, 2020,401:126044.
[12]	Zubair M, Daud M, Mckay G, et al. Recent progress in layered double hydroxides (LDH)-containing hybrids as adsorbents for water remediation[J]. Applied Clay Science, 2017,143(7):279-292.
[13]	Chen S, Huang Y, Han X, et al. Simultaneous and efficient removal of Cr (VI) and methyl orange on LDHs decorated porous carbons[J]. Chemical Engineering Journal, 2018,35(2):306-315.
[14]	江苏隆昌化工有限公司.一种氯化铵资源化综合利用方法:中国, 201310355352.4[P]. 2013-12-11. Jiangsu Longchang Chemical Co. LTD. A comprehensive utilization method of ammonium chloride:CN 201310355352.4[P]. 2013-12-11.
[15]	Milagres J L, Bellato C R, Vieira R S, et al. Preparation and evaluation of the Ca-Al layered double hydroxide for removal of copper (Ⅱ), nickel (Ⅱ), zinc (Ⅱ), chromium (VI) and phosphate from aqueous solutions[J]. Journal of Environmental Chemical Engineering, 2017, 5(6):5469-5480.
[16]	Xu S D, Li L, Guo X Y, et al. Selenium (VI) removal from caustic solution by synthetic Ca-Al-Cl layered double hydroxides[J]. Transactions of Nonferrous Metals Society of China, 2019,29(8):1763-1775.
[17]	吴秋梅,刘刚,王慧峰,等.水铝钙石对不同镉污染农田重金属的钝化效果及机制[J]. 环境科学, 2019,40(12):5540-5549. Wu Q M, Liu G, Wang H F, et al. Hydrocalumite passivation effect and mechanism on heavy metals in different Cd-contaminated farmland soils[J]. Environmental Science, 2019,40(12):5540-5549.
[18]	Dai Y, Qian G, Cao Y, et al. Effective removal and fixation of Cr (VI) from aqueous solution with Friedel's salt[J]. Journal of Hazardous Materials, 2009,170(2/3):1086-1092.
[19]	闫淑兰,赵秀红,罗启仕.基于文献计量的重金属固化稳定化修复技术发展动态研究[J]. 农业环境科学学报, 2020,39(2):229-238. Yan S L, Zhao X H, Luo Q S. Bibliometrics-based development trends of solidification/stabilization technology for the remediation of sites contaminated by heavy metals[J]. Journal of Agro-Environment Science, 2020,39(2):229-238.
[20]	GB 36600-2018土壤环境质量建设用地土壤污染风险管控标准[S]. GB 36600-2018 Soil environmental quality Risk control standard for soil contamination of development land[S].
[21]	Chen Y, Chen H, Thring R W, et al. Immobilization of chromium contaminated soil by Co-pyrolysis with rice straw[J]. Water, Air, & Soil Pollution, 2020,231(5):1-13.
[22]	US Environmental Protection Agency. SW-846, Method 1311 toxicity characteristics leaching procedure (TCLP)[Z].
[23]	Moreira L J D, Da Silva E B, Fontes M P F, et al. Speciation, bioaccessibility and potential risk of chromium in Amazon forest soils[J]. Environmental Pollution, 2018,23(9):384-391.
[24]	Skowronski G A, Seide M, Abdel-Rahman M S. Oral bioaccessibility of trivalent and hexavalent chromium in soil by simulated gastric fluid[J]. Journal of Toxicology and Environmental Health, 2001,63(5):351-362.
[25]	Oomen A G, Hack A, Minekus M, et al. Comparison of five in vitro digestion models to study the bioaccessibility of soil contaminants[J]. Environmental Science and Technology, 2002,36(15):3326-3334.
[26]	Ruby M V, Davis A, Schoof R, et al. Estimation of lead and arsenic bioavailability using a physiologically based extraction test[J]. Environmental Science and Technology, 1996,30(2):422-430.
[27]	Rodriguez R R, Basta N T, Casteel S W, et al. An in vitro gastrointestinal method to estimate bioavailable arsenic in contaminated soils and solid media[J]. Environmental Science and Technology, 1999,33(4):642-649.
[28]	鲁如坤.土壤农业化学分析方法[M]. 北京:中国农业科技出版社, 2000. Lu R K. Analytical methods for soil and agro-chemistry[M]. Beijing:China Agricultural Science and Technology Press, 2000.
[29]	Li Y, Wang W, Zhou L, et al. Remediation of hexavalent chromium spiked soil by using synthesized iron sulfide particles[J]. Chemosphere, 2017,169(2):131-138.
[30]	NY 1110-2010水溶肥料汞、砷、镉、铅、铬的限量要求[S]. NY 1110-2010 Water-soluble fertilizers-Content-limits of mercury, arsenic, cadmium, lead and chromium[S].
[31]	Dai Y, Qian G, Cao Y, et al. Effective removal and fixation of Cr (VI) from aqueous solution with Friedel's salt[J]. Journal of Hazardous Materials, 2009,170(23):1086-1092.
[32]	Xu T, Nan F, Jiang X, et al. Effect of soil pH on the transport, fractionation, and oxidation of chromium (Ⅲ)[J]. Ecotoxicology and Environmental Safety, 2020,195:110459.
[33]	HJ687-2014固体废物六价铬的测定-碱消解/火焰原子吸收分光光度法[S]. HJ687-2014 Solid waste-determination of hexavalent Chromium-Alkaline digestion/flame atomic absorption spectrophotometric[S].
[34]	HJ803-2016土壤和沉积物12种金属元素的测定王水提取-电感耦合等离子体质谱法[S]. HJ803-2016 Soil and sediment-determination of aqua regia extracts of 12mental elements-Inductively coupled plasma mass spectrometry[S].
[35]	陈英旭,何增耀.土壤中铬的形态及其转化[J]. 环境科学, 1994, 15(3):53-56. Chen Y X, He Z Y. Fractions and transformation of chromium in soil[J]. Environmental Science, 1994,15(3):53-56.
[36]	HJ25.3-2019建设用地土壤污染风险评估技术导则[S]. HJ25.3-2019 Technical guidelines for risk assessment of soil contamination of land for construction[S].
[37]	Zhang X, Tong J, Hu B X, et al. Adsorption and desorption for dynamics transport of hexavalent chromium (Cr (VI)) in soil column[J]. Environmental Science and Pollution Research, 2017,25(5):1-10.
[38]	Jardine P M, Stewart M A, Barnett M O, et al. Influence of soil geochemical and physical properties on Chromium (VI) sorption and bioaccessibility[J]. Environmental Science & Technology, 2013,47(19):11241-11248.
[39]	尹乃毅,崔岩山,张震南,等.土壤中金属的生物可给性及其动态变化的研究[J]. 生态环境学报, 2014,23(2):317-325. Yin N Y, Cui Y S, Zhang Z N, et al. Bioaccessibility and dynamic dissolution of metals in contaminated soils[J]. Ecology and Environmental Sciences, 2014,23(2):317-325.
[40]	Chrysochoou M, Johnston C P, Dahal G. A comparative evaluation of hexavalent chromium treatment in contaminated soil by calcium polysulfide and green-tea nanoscale zero-valent iron[J]. Journal of Hazardous Materials, 2012,201-202:33-42.
[41]	Yu G, Fu F, Ye C, et al. Behaviors and fate of adsorbed Cr (VI) during Fe (Ⅱ)-induced transformation of ferrihydrite-humic acid co-precipitates[J]. Journal of Hazardous Materials, 2020,392:122272.
[42]	张剑宇,陈晓晨.一种土壤修复剂撒施机:中国, 201820515763.3[P]. 2018-04-12. Zhang J Y, Chen X C. A kind of soil remediation amendment spreader:CN 201820515763.3[P]. 2018-04-12.