+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Monometal and competitive adsorption of heavy metals by sewage sludge-amended soil

Monometal and competitive adsorption of heavy metals by sewage sludge-amended soil

Chemosphere 68(3): 489-494

Sewage sludge-amended soils may alter their ability to adsorb heavy metals over time, due to the decomposition of sludge-borne organic matter. Thus, we studied Cd, Ni, and Zn adsorption by a sewage sludge-amended soil (Typic Xerofluvent) before and after one-year incubation in both monometal and competitive systems. In the monometal system, the order of decreasing sorption was Zn>Cd>Ni. Competition significantly reduced metal K(d), especially that of Cd which decreased by nearly 50%. Over the course of the incubation there was a 31% reduction of soil organic matter content. At the same time, in competitive systems Cd K(d) significantly decreased, while Zn K(d) significantly increased, and Ni K(d) remained unaffected. This study shows that sewage sludge-amended soils may change in their ability to sorb heavy metals over time at high metal concentrations. The data suggest that Cd is likely to be of most environmental significance in such soils, since it exhibited decreased sorption under competitive conditions and as the organic matter content of the soil was reduced. The potential for long-term release of metals should be considered in the risk assessment associated with sewage sludge addition to soils, particularly in climates where degradation of organic matter is likely to be enhanced.

(PDF emailed within 0-6 h: $19.90)

Accession: 013763554

Download citation: RISBibTeXText

PMID: 17276490

DOI: 10.1016/j.chemosphere.2006.12.062

Related references

Competitive adsorption behavior of selected heavy metals in three soil types of India amended with fly ash and sewage sludge. Environmental geology 44(3): 363-370, 2003

Adsorption and desorption of heavy metals by the sewage sludge and biochar-amended soil. Environmental Geochemistry and Health, 2017

Speciation of heavy metals in sewage sludge and sludge-amended soil. International Journal of Environmental Analytical Chemistry 51(1-4): 161-175, 1993

Behaviour of heavy metals in domestic sewage sludge amended into soil. Japanese Journal of Soil Science and Plant Nutrition 67(1): 24-31, 1996

Mobility of heavy metals in a sandy soil amended with sewage sludge. Journal of China Agricultural University 2(3): 113-118, 1997

Soil profile distribution of heavy metals in a soil amended with sewage sludge for eight years. Agricoltura Mediterranea 128(4): 273-283, 1998

Enzyme activities and heavy metals concentration in soil amended with sewage sludge. Journal of Environmental Science and Health. Part A, Toxic/Hazardous Substances & Environmental Engineering 44(10): 1019-1024, 2009

Prediction of available heavy metals by six chemical extractants in a sewage sludge amended soil. Communications in Soil Science & Plant Analysis 22(19-20): 2119-2136, 1991

Fate of some heavy metals in sandy soil amended with sewage sludge and their accumulation in plants. Egyptian Journal of Soil Science 43(1): 1-17, 2003

Movement and speciation of heavy metals in a soil amended with sewage sludge containing large amounts of Cd and Ni. Water Research 22(8): 953-959, 1988

Bioavailability of heavy metals and arbuscular mycorrhiza in a sewage-sludge-amended sandy soil. Soil Biology & Biochemistry 27(3): 287-296, 1995

Heavy metals in maize (Zea mays) grown in a soil amended with sewage sludge compost. Revista Internacional de Contaminacion Ambiental 20(2): 59-68, 2004

Chemical fractionation of heavy metals in a soil amended with repeated sewage sludge application. Science of the Total Environment 226(2/3): 113-119, 1999

Protozoan bioassays of soil amended with sewage sludge and heavy metals, using the common soil ciliate Colpoda steinii. Biology & Fertility of Soils 16(4): 282-286, 1993

Fate of heavy metals in black cotton soil amended with sewage sludge and refuse compost. Indian Journal of Environmental Health 34(2): 122-132, 1992