Arsenic mobility in brownfield soils amended with green waste compost or biochar and planted with Miscanthus.

Degraded land that is historically contaminated from different sources of industrial waste provides an opportunity for conversion to bioenergy fuel production and also to increase sequestration of carbon in soil through organic amendments. In pot experiments, As mobility was investigated in three different brownfield soils amended with green waste compost (GWC, 30% v/v) or biochar (BC, 20% v/v), planted with Miscanthus. Using GWC improved crop yield but had little effect on foliar As uptake, although the proportion of As transferred from roots to foliage differed considerably between the three soils. It also increased dissolved carbon concentrations in soil pore water that influenced Fe and As mobility. Effects of BC were less pronounced, but the impacts of both amendments on SOC, Fe, P and pH are likely to be critical in the context of As leaching to ground water. Growing Miscanthus had no measurable effect on As mobility.

[1]  P. Grossl,et al.  Adsorption of arsenate and arsenite on ferrihydrite in the presence and absence of dissolved organic carbon. , 2002, Journal of environmental quality.

[2]  N. Dickinson,et al.  Arsenic stability and mobilization in soil at an amenity grassland overlying chemical waste (St. Helens, UK). , 2009, Environmental pollution.

[3]  A. Grimvall,et al.  Effects of acidification and natural organic materials on the mobility of arsenic in the environment , 1991 .

[4]  N. Dickinson.  Soil Degradation and Nutrients , 2003 .

[5]  C. Black,et al.  Modelling phytoremediation by the hyperaccumulating fern, Pteris vittata, of soils historically contaminated with arsenic. , 2009, Environmental pollution.

[6]  P. Burgos,et al.  “In Situ” Amendments and Revegetation Reduce Trace Element Leaching in a Contaminated Soil , 2007 .

[7]  M. Hodson,et al.  The effect of organic materials on the mobility and toxicity of metals in contaminated soils , 2007 .

[8]  A. Macchioni,et al.  Fate of pig sludge liquid fraction in calcareous soil : Agricultural and environmental implications , 1998 .

[9]  R. H. Loeppert,et al.  Arsenite and arsenate adsorption on ferrihydrite : Surface charge reduction and net OH- release stoichiometry , 1999 .

[10]  J. Lehmann,et al.  Ameliorating physical and chemical properties of highly weathered soils in the tropics with charcoal – a review , 2002, Biology and Fertility of Soils.

[11]  R. Mclaren,et al.  Fractionation of arsenic in soil by a continuous-flow sequential extraction method. , 2001, Journal of environmental quality.

[12]  H. Bowen,et al.  Problems in the elementary analysis of standard biological materials , 1974 .

[13]  J. Wong,et al.  Effect of dissolved organic matter from sludge and sludge compost on soil copper sorption. , 2001, Journal of environmental quality.

[14]  B. J. Alloway,et al.  Field trials to assess the uptake of arsenic by vegetables from contaminated soils and soil remediation with iron oxides. , 2003, The Science of the total environment.

[15]  J. Lehmann,et al.  Bio-char soil management on highly weathered soils in the humid tropics , 2006 .

[16]  N. Grimm,et al.  A distinct urban biogeochemistry? , 2006, Trends in ecology & evolution.

[17]  E. Kandeler,et al.  Biochemical characterization of urban soil profiles from Stuttgart, Germany , 2005 .

[18]  H. Pendias,et al.  Trace Elements in Soils and Plants, Third Edition , 2000 .

[19]  D. Macalady,et al.  Natural organic matter affects arsenic speciation and sorption onto hematite. , 2002, Environmental science & technology.

[20]  Haw-Tarn Lin,et al.  Effect of Water Extract of Compost on the Adsorption of Arsenate by Two Calcareous Soils , 2002 .

[21]  R. Sletten,et al.  Sequentially Extracted Arsenic from Different Size Fractions of Contaminated Soils , 2000 .

[22]  K. Seshaiah,et al.  Mobility of adsorbed arsenic in two calcareous soils as influenced by water extract of compost. , 2008, Chemosphere.

[23]  N. Dickinson,et al.  Mobility of metals and metalloids in a multi-element contaminated soil 20 years after cessation of the pollution source activity. , 2008, Environmental pollution.

[24]  Ming Hung Wong,et al.  The restoration and management of derelict land :modern approaches , 2003 .

[25]  A. Sæbø,et al.  The use of compost in urban green areas – A review for practical application , 2006 .

[26]  N. Uphoff.  Biological Approaches to Sustainable Soil Systems , 2006 .

[27]  R. Chaney.  Toxic Element Accumulation in Soils and Crops: Protecting Soil Fertility and Agricultural Food-Chains , 1989 .

[28]  J. Lehmann.  Bio-energy in the black , 2007 .

[29]  Abir Al-Tabbaa,et al.  The use of compost in the regeneration of brownfield land , 2008 .

[30]  J. Nriagu.  Changing Metal Cycles and Human Health , 1984 .

[31]  A. Lehmann,et al.  Nature and significance of anthropogenic urban soils , 2007 .

[32]  D. Clarkson,et al.  KINETICS OF PHOSPHORUS UPTAKE BY THE GERM-TUBES OF THE VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGUS, GIGASPORA MARGARITA , 1990 .

[33]  J. Vangronsveld,et al.  Progress in remediation and revegetation of the barren Jales gold mine spoil after in situ treatments , 2003, Plant and Soil.

[34]  Johannes Lehmann,et al.  Nutrient availability and leaching in an archaeological Anthrosol and a Ferralsol of the Central Amazon basin: fertilizer, manure and charcoal amendments , 2003, Plant and Soil.

[35]  D. Sauerbeck,et al.  The Contamination of Plants and Soils with Heavy Metals and the Transport of Metals in Terrestrial Food Chains , 1984 .

[36]  W. Hartley,et al.  Arsenic and heavy metal mobility in iron oxide-amended contaminated soils as evaluated by short- and long-term leaching tests. , 2004, Environmental pollution.

[37]  P. Putwain,et al.  Robust descriptors of soil health for use in reclamation of brownfield land , 2005 .

[38]  R. Lucas,et al.  RELATIONSHIPS BETWEEN PH VALUES OF ORGANIC SOILS AND AVAILABILITIES OF 12 PLANT NUTRIENTS , 1961 .

[39]  B. Bar-yosef,et al.  Inorganic Contaminants in the Vadose Zone , 1989, Ecological Studies.

[40]  N. Lepp,et al.  Arsenic in soils and plants of woodland regenerated on an arsenic-contaminated substrate: a sustainable natural remediation? , 2007, The Science of the total environment.

[41]  I. H. Rorison,et al.  Chemical Analysis of Ecological Materials. , 1974 .

[42]  W. P. Miller,et al.  Arsenate Displacement from Fly Ash in Amended Soils , 1999 .

[43]  B. B. Dhar,et al.  ENVIRONMENTAL ASSESSMENT OF COAL ASH DISPOSAL : A REVIEW , 1996 .

[44]  T. Hutchings,et al.  Immobilization of Heavy Metals in Soil Using Natural and Waste Materials for Vegetation Establishment on Contaminated Sites , 2007 .

[45]  C. Mulligan,et al.  Enhanced mobilization of arsenic and heavy metals from mine tailings by humic acid. , 2009, Chemosphere.

[46]  A. Kabata-Pendias.  Trace elements in soils and plants , 1984 .

[47]  L. Ma,et al.  Effects of compost and phosphate on plant arsenic accumulation from soils near pressure-treated wood. , 2004, Environmental pollution.

[48]  M. Gräfe,et al.  Adsorption of Arsenate (V) and Arsenite (III) on Goethite in the Presence and Absence of Dissolved Organic Carbon , 2001 .

[49]  L. Ma,et al.  Effects of compost and phosphate amendments on arsenic mobility in soils and arsenic uptake by the hyperaccumulator, Pteris vittata L. , 2003, Environmental pollution.

[50]  F. J. Peryea,et al.  Phosphate-Induced Release of Arsenic from Soils Contaminated with Lead Arsenate , 1991 .

[51]  John E. Lloyd,et al.  Distinguishing urban soils with physical, chemical, and biological properties , 2005 .

[52]  P. Travlou,et al.  Mapping research priorities for green and public urban space in the UK , 2007 .

[53]  S. R. Olsen,et al.  Estimation of available phosphorus in soils by extraction with sodium bicarbonate , 1954 .

[54]  D. Adriano.  Trace Elements in the Terrestrial Environment , 1986 .

[55]  M. Johns,et al.  Remediation of metal contaminated soil with mineral-amended composts. , 2007, Environmental pollution.

[56]  J. Morel,et al.  Soil construction: A step for ecological reclamation of derelict lands , 2008 .