Browse > Article
http://dx.doi.org/10.4491/eer.2016.039

KH2PO4-aided soil washing for removing arsenic from water-stable soil aggregates collected in southern China  

Zhao, Ranran (College of Ecological Technique and Engineering, Shanghai Institute of Technology)
Li, Xiaojun (Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences)
Zhang, Zhiguo (College of Ecological Technique and Engineering, Shanghai Institute of Technology)
Zhao, Guanghui (Shenyang Academy of Environmental Sciences)
Publication Information
Environmental Engineering Research / v.21, no.3, 2016 , pp. 304-310 More about this Journal
Abstract
Removal of arsenic (As) from soil aggregates with particle sizes of > 2.0, 2.0-0.25, 0.25-0.053, < 0.053 mm by soil washing of $KH_2PO_4$ and the kinetics of As releasing from soil aggregates were investigated. Effects of $KH_2PO_4$ concentration, ratio of liquid/soil and washing duration on the removal were fully explored. The results showed that the high As removal was obtained in > 2 mm aggregates (48.56%) and < 0.053 mm aggregates (42.88%) under the optimum condition ($KH_2PO_4$ concentration of 0.1 mol/L, and liquid/soil ratio (10 mL/g) for 360 min). 62.82% of As was extracted from aggregates with size less than 0.25 mm. Only 11.88% was contributed by the large aggregates (> 2.0mm). Using $KH_2PO_4$ washing, it was also found that extracted As is mainly in form of either specifically sorbed As or As associated with oxides of Fe and Al. Elovich model can describe the removal process of As more precisely than Two-constant kinetic models. The optimum washing conditions and removal process is also applied to bulk soil. This technique in this study is reliable, cost-effective and offers a great potential for practical application in soil remediation.
Keywords
Arsenic (As); Potassium dihydrogen phosphate ($KH_2PO_4$); Soil aggregates; Soil washing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Moon HD, Dermatas D, Menounou N. Arsenic immobilization by calcium-arsenic precipitates in lime treated soils. Sci. Total Environ. 2004;330:171-185.   DOI
2 Warren GP, Alloway BJ, Lepp NW, Singh B, Bochereau FGM, Penny C. Field trials to assess the uptake of arsenic by vegetables from contaminated soils and soil remediation with iron oxides. Sci. Total Environ. 2003;311:19-33.   DOI
3 Guo W, Zhu YG, Liu WJ, Liang YC, Geng CN, Wang SG. Is the effect of silicon on rice uptake of arsenate (AsV) related to internal silicon concentrations, iron plaque andphosphate nutrition? Environ. Pollut. 2007;14:251-257.
4 Lestan D, Luo CL, Li XD. The use of chelating agents in the remediation of metal-contaminated soils: a review. Environ. Pollut. 2008;153:3-13.   DOI
5 Mulligan CN. Environmental applications for biosurfactants. Environ. Pollut. 2005;133: 183-198.   DOI
6 Mukhopadhyay S, Hashim MA, Allen M, Sen Gupta B. Arsenic removal from soil with high iron content using a natural surfactant and phosphate. Int. J. Environ. Sci. Technol. 2015;12:617-632.   DOI
7 Theodoratos P, Papassiopi N, Xenidis A. Evaluation of monobasic calcium phosphate for the immobilization of heavy metals in contaminated soils from Lavrion. J. Hazard. Mater. 2002;94:135-146.   DOI
8 Kumpiene J, Lagerkvist A, Maurice C. Stabilization of As, Cr, Cu, Pb and Zn in soil using amendments-a review. Waste Manage. 2008;28:215-225.   DOI
9 Lee M, Paik IS, Do W, Kim I, Lee Y, Lee S. Soil washing of As contaminated stream sediments in the vicinity of an abandoned mine in Korea. Environ. Geochem. Health 2007;29:319-329.   DOI
10 Moutsatsou A, Gregou M, Matsas D, Protonotarios V. Washing as a remediation technology applicable in soils heavily polluted by mining-metallurgical activities. Chemosphere 2006;63:1632-1640.   DOI
11 Elgh-Dalgren K, Arwidsson Z, Camdzija A, et al. Laboratory and pilot scale soil washing of PAH and arsenic from a wood preservation site: changes in concentration and toxicity. J. Hazard. Mater. 2009;172:1033-1040.   DOI
12 Jho EH, Im J, Yang K, et al. Changes in soil toxicity by phosphate-aided soil washing: Effect of soil characteristics, chemical forms of arsenic, and cations in washing solutions. Chemosphere 2015;119:1399-1405.   DOI
13 Zeng M, Liao BH, Lei M, Zhang Y, Zeng QR, OuYang B. Arsenic removal from contaminated soil using phosphoric acid and phosphate. J. Environ. Sci. 2008;20:75-79.   DOI
14 Im J, Yang K, Jho EH, et al. Effect of different soil washing solutions on bioavailability of residual arsenic in soils and soil properties. Chemosphere 2015;138:253-258.   DOI
15 Alam MGM, Tokunaga S, Maekawa T. Extraction of arsenic in a synthetic arsenic-contaminated soil using phosphate. Chemosphere 2001;43:1035-1041.   DOI
16 Chen C, Chen XF, Li XM, et al. Study on washing remediation technology of arsenic contaminated soil using phosphate. Acta Sci. Circumst. 2015;35:2582-2588
17 Cheng SF, Huang CY, Tu YT. Remediation of soils contaminated with chromium using citric and hydrochloric acids: The role of chromium fractionation in chromium leaching. Environ. Technol. 2011;32:879-889.   DOI
18 Hansen HK, Yianatos JB, Ottosen LM. Speciation and leachability of copper in mine tailingsfrom porphyry copper mining:Influence of particle size. Chemosphere 2005;60: 1497-1503.   DOI
19 Schulten HR, Leinweber P. New insights into organic-mineral particles: Composition, properties and models of molecular structure. Biol. Fert. Soils 2000;30:399-432.   DOI
20 Wang F. Sorption-desorption of Cadmium, Copper and Phenanthene by Size fractions of micro aggregates from paddy soils. Nanjing agricultural University; 2008.
21 Lee Y, Oa SW. Desorption Kinetics and removal characteristics of Pb-contaminated soil by the soil washing method: mixing ratios and particle size. Environ. Eng. Res. 2012;17:145-150.   DOI
22 Liao XY, Li Y, Yan XL. Removal of heavy metals and arsenic from a co-contaminated soil by sieving combined with washing process [Internet]. Liao XY, LiY, Yan XL; c2015. Available from: http://dx.doi.org/10.1016/j.jes.2015.06.017.
23 Cambardella CA, Elliott ET. Carbon and nitrogen dynamics of soil organic matter fractions from cultivated grassland soils. Soil Sci. Soc. Am. J. 1994;58:123-130.   DOI
24 Wang H, Cui GX. Determination of cation exchange capacity of soil by barium chloride buffer method. Soil 1989;21:49-51.
25 Lu RK. Analitical methods for soil and agrochemistry. Beijing, China: Chinese agricultural Science and Technology Press; 2000. p. 61-62.
26 Bao SD. Soil and Agriculture Chemistry Analysis. 3rd ed. Beijing, China: Chinese Agricultural Press; 2000. p. 74-76.
27 Wenzel WW, Kirchbaumer N, Prohaska T, Stingeder G, Lombi E, Adriano DC. Arsenic fractionation in soils using an improved sequential extraction procedure. Anal. Chim. Acta 2001;436:309-323.   DOI
28 Ettler V, Mihaljevic M, Sebek O, Grygar T. Assessment of single extractions for the determination of mobile forms of metals in highly polluted soils and sediments-Analytical and thermodynamic approaches. Anal. Chim. Acta 2007;602:131-140.   DOI
29 Zou ZL, Qiu RL, Zhang WH, et al. The study of operating variables in soil washing with EDTA. Environ. Pollut. 2009;157:229-236.   DOI
30 Andrade MD, Prasher SO, Hendershot WH. Optimizing the molarity of aEDTA washing solution for saturated-soil remediation of trace metal contaminated soils. Environ. Pollut. 2007;147:781-790.   DOI
31 Yin YJ, Impellitteri CA, You SJ, Allen HE. The importance of organic matter distribution and extract soil: solution ratio on the desorption of heavy metals from soils. Sci. Total Environ. 2002;287:107-119.   DOI
32 Hwang JS, Choi SI, Jang M. Application of soil washing technology for arsenic contaminated soil. J. Soil Groundwater Environ. 2004;9:104-111.
33 Xu C, Xia BC, Lin Y. Kinetics of heavy metals in medium and slight pollution load soils under effects of citric washing. Ecol. Environ. Sci. 2009;18:507-510.
34 Tu C. Equations of chemical kinetics and their application to soil systerm. Trop. Subtrop. Soil Sci. 1994;3:175-182.
35 Lombi E, Sletten RS, Wenzel WW. Sequentially extracted arsenic from different size fractions of contaminated soils. Water Air Soil Pollut. 2000;124:319-332.   DOI
36 Lee CS, Kao MM. Effects of extracting reagents and metal speciation on the removal of heavy metal contaminated soils by chemical extraction. J. Environ. Sci. Health A 2004;39:1233-1249.   DOI
37 Geelhoed JS, Hiemstra T, Van Riemsdijk WH. Competitive interactionbetween phosphate and citrate on goethite. Environ. Sci. Technol. 1998;32:2119-2123.   DOI
38 Wang S, Mulligan CN. Effect of natural organic matter on arsenic releasefrom soils and sediments into groundwater. Environ. Geochem. Health 2006;28:197-214.   DOI