Soil washing for metal removal: a review of physical/chemical technologies and field applications.

Soil washing is one of the few permanent treatment alternatives to remove metal contaminants from soils. This paper reviews the various technology types and pilot/full-scale field applications of soil washing applicable to soils highly contaminated with heavy metals. The physical separation technologies, the chemical extraction processes and the integrated processes that combine both physical and chemical methods are discussed separately. This paper reviews basic principles, applicability, advantages and limitations, methods of predicting and improving performance of each physical/chemical technology. The discussion is based on a review of 30 recent laboratory investigations and 37 field applications of soil washing systems which have been undertaken, mostly in the US, for the period 1990-2007. This paper also examines and compares the status of soil washing technology for remediation of soils contaminated with metals in the US, in Canada and in Europe.

[1]  A. Maes,et al.  Flotation as a remediation technique for heavily polluted dredged material. 1. A feasibility study. , 1998, The Science of the total environment.

[2]  L. Di Palma,et al.  Copper leaching from a sandy soil: mechanism and parameters affecting EDTA extraction. , 2005, Journal of hazardous materials.

[3]  C. Mulligan,et al.  An evaluation of technologies for the heavy metal remediation of dredged sediments. , 2001, Journal of hazardous materials.

[4]  M. J. Mann,et al.  Full-scale and pilot-scale soil washing. , 1999, Journal of hazardous materials.

[5]  Catherine N. Mulligan,et al.  On the use of biosurfactants for the removal of heavy metals from oil‐contaminated soil , 1999 .

[6]  M. Matsumoto,et al.  Characteristics of Heavy Metals in Contaminated Soils , 1995 .

[7]  Kyoung-Woong Kim,et al.  Remediation of soil contaminated with arsenic, zinc, and nickel by pilot-scale soil washing , 2006 .

[8]  Catherine N. Mulligan,et al.  Metal Removal from Contaminated Soil and Sediments by the Biosurfactant Surfactin , 1999 .

[9]  Catherine N. Mulligan,et al.  Surfactant-enhanced remediation of contaminated soil: a review , 2001 .

[10]  Guy Mercier,et al.  PREDICTION OF METAL REMOVAL EFFICIENCY FROM CONTAMINATED SOILS BY PHYSICAL METHODS , 2001 .

[11]  R M Bricka,et al.  LABORATORY EVALUATION OF REMEDIATION ALTERNATIVES FOR U.S. COAST GUARD SMALL ARMS FIRING RANGES , 1999 .

[12]  V. Kirjavainen,et al.  Review and analysis of factors controlling the mechanical flotation of gangue minerals , 1996 .

[13]  Weihua Zhang,et al.  EDTA-Enhanced Washing for Remediation of Pb- and/or Zn-Contaminated Soils , 2006 .

[14]  J. Berthelin,et al.  A Multidisciplinary Approach to Assess History, Environmental Risks, and Remediation Feasability of Soils Contaminated by Metallurgical Activities. Part A: Chemical and Physical Properties of Metals and Leaching Ability , 2000, Archives of environmental contamination and toxicology.

[15]  Timothy J Mason,et al.  Sonochemistry and the environment - providing a "green" link between chemistry, physics and engineering. , 2007, Ultrasonics sonochemistry.

[16]  H. Elliott,et al.  Extractive Decontamination of Metal-Polluted Soils Using Oxalate , 1999 .

[17]  I. Iskandar.  Environmental Restoration of Metals-Contaminated Soils , 2000 .

[18]  Gerald H. Luttrell,et al.  Development of high-efficiency hydraulic separators , 2006 .

[19]  S. Prasher,et al.  A washing procedure to mobilize mixed contaminants from soil: II. Heavy metals. , 2006, Journal of environmental quality.

[20]  C. Mulligan,et al.  Remediation of a heavy metal-contaminated soil by a rhamnolipid foam , 2006 .

[21]  S. Wada,et al.  Remediation of Pb-contaminated soils by washing with hydrochloric acid and subsequent immobilization with calcite and allophanic soil. , 2007, Journal of hazardous materials.

[22]  D. Dahlin,et al.  Sequential Extraction Versus Comprehensive Characterization of Heavy Metal Species in Brownfield Soils , 2002 .

[23]  William H. Hendershot,et al.  Removal of trace metals from contaminated soils using EDTA incorporating resin trapping techniques , 1998 .

[24]  C. Mulligan,et al.  Heavy metal removal from sediments by biosurfactants. , 2001, Journal of hazardous materials.

[25]  A. Maes,et al.  Flotation as a remediation technique for heavily polluted dredged material. 2. Characterisation of flotated fractions. , 1998, The Science of the total environment.

[26]  A. Davis,et al.  Washing of Various Lead Compounds from a Contaminated Soil Column , 1998 .

[27]  Wayne J. Parker,et al.  Contamination of a calcareous soil by battery industry wastes. II. Treatment , 2001 .

[28]  M. Vanthuyne,et al.  The removal of heavy metals from contaminated soil by a combination of sulfidisation and flotation. , 2002, The Science of the total environment.

[29]  R. Bricka,et al.  Vertical column hydroclassification of metal-contaminated soils. , 1999, Journal of hazardous materials.

[30]  D. E. Walsh,et al.  Lead removal via soil washing and leaching , 2001 .

[31]  J. Blais,et al.  Heavy Metals Removal from Acidic and Saline Soil Leachate using Either Electrochemical Coagulation or Chemical Precipitation , 2006 .

[32]  Peter Carlo Rem,et al.  Improved method for prediction of heavy metal recoveries from soil using high intensity magnetic separation (HIMS) , 1998 .

[34]  I. Paspaliaris,et al.  Removal of contaminant metals from fine grained soils, using agglomeration, chloride solutions and pile leaching techniques. , 2001, Journal of hazardous materials.

[35]  T. Lim,et al.  Process evaluation for optimization of EDTA use and recovery for heavy metal removal from a contaminated soil. , 2005, Chemosphere.

[36]  Kyoung-Woong Kim,et al.  Assessment of pilot-scale acid washing of soil contaminated with As, Zn and Ni using the BCR three-step sequential extraction. , 2005, Journal of hazardous materials.

[37]  D. Lestan,et al.  Multi-step leaching of Pb and Zn contaminated soils with EDTA. , 2007, Chemosphere.

[38]  A. Tessier,et al.  Sequential extraction procedure for the speciation of particulate trace metals , 1979 .

[39]  D. Lestan,et al.  Heap leaching of Pb and Zn contaminated soil using ozone/UV treatment of EDTA extractants. , 2006, Chemosphere.

[40]  Guy Mercier,et al.  Décontamination à l'échelle pilote de sols pollués en métaux toxiques par des procédés miniers et lixiviation chimique , 2007 .

[41]  Michael A. Marino,et al.  Heavy metal soil remediation: The effects of attrition scrubbing on a wet gravity concentration process , 1997 .

[42]  Michael J. Mann,et al.  The first full‐scale soil washing project in the USA , 1996 .

[43]  A. Kontopoulos,et al.  Removal of Heavy Metals from Calcareous Contaminated Soils by EDTA Leaching , 1999 .

[44]  S. R. Cline,et al.  Lead Removal from Soils via Bench-Scale Soil Washing Techniques , 1995 .

[45]  M. Vanthuyne,et al.  The use of flotation techniques in the remediation of heavy metal contaminated sediments and soils: an overview of controlling factors , 2003 .

[46]  A. Moutsatsou,et al.  Washing as a remediation technology applicable in soils heavily polluted by mining-metallurgical activities. , 2006, Chemosphere.

[47]  K. Reddy,et al.  Comparison of Extractants for Removing Heavy Metals from Contaminated Clayey Soils , 2000 .

[48]  S. McGrath,et al.  Leaching of heavy metals from contaminated soils using EDTA. , 2001, Environmental pollution.

[49]  M. Matsumoto,et al.  Evaluation and Analysis of Soil Washing for Seven Lead-Contaminated Soils , 1997 .

[50]  Joo-Hwa Tay,et al.  Chelating-Agent-Enhanced Heavy Metal Extraction from a Contaminated Acidic Soil , 2004 .

[51]  D. Blackburn,et al.  Removal of Metals from Contaminated Soils by Mineral Processing Techniques Followed by Chemical Leaching , 2002 .

[52]  Richard A. Griffiths,et al.  Soil-washing technology and practice , 1995 .

[53]  M. Lai,et al.  Influence of solution acidity and CaCl2 concentration on the removal of heavy metals from metal-contaminated rice soils. , 2006, Environmental pollution.

[54]  H. Takano,et al.  Remediation of cadmium contamination in paddy soils by washing with chemicals: selection of washing chemicals. , 2006, Environmental pollution.

[55]  M. Steele,et al.  Ex-situ remediation of a metal-contaminated Superfund soil using selective extractants , 1998 .

[56]  Edward H. Smith,et al.  Heavy metal contaminants removal by soil washing. , 1999, Journal of hazardous materials.

[57]  J N Meegoda,et al.  Ultrasound to decontaminate heavy metals in dredged sediments. , 2001, Journal of hazardous materials.

[58]  D. Clifford,et al.  Feasibility of extracting lead from lead battery recycling site soil using high‐concentration chloride solutions , 2000 .

[59]  D. Blackburn.  ASSESSMENT PROTOCOL OF THE APPLICABILITY OF ORE-PROCESSING TECHNOLOGY TO TREAT CONTAMINATED SOILS, SEDIMENTS AND SLUDGES , 1999 .

[60]  J. Blais,et al.  Laboratory Study of Successive Soil Saline Leaching and Electrochemical Lead Recovery , 2005 .

[61]  B. A. Wills,et al.  Mineral processing technology , 1979 .

[62]  Catherine N Mulligan,et al.  Environmental applications for biosurfactants. , 2005, Environmental pollution.

[63]  Hanna Kyllönen,et al.  Ultrasonically aided mineral processing technique for remediation of soil contaminated by heavy metals. , 2004, Ultrasonics sonochemistry.

[64]  R. Peters,et al.  Chelant extraction of heavy metals from contaminated soils. , 1999, Journal of hazardous materials.

[65]  S. Prasher,et al.  A washing procedure to mobilize mixed contaminants from soil: I. Polychlorinated biphenyl compounds. , 2006, Journal of environmental quality.

[66]  R. Bricka,et al.  Physical Separation of Metal-Contaminated Soils , 2000 .