Effect of sewage sludge or compost on the sorption and distribution of copper and cadmium in soil

Journal Article · Sat Jul 01 04:00:00 EDT 2006 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2005.03.008· OSTI ID:20877398

Vaca-Paulin, R ^[1]; Esteller-Alberich, M V ^[2]; Lugo-de la Fuente, J ^[1]; Zavaleta-Mancera, H A ^[3]

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1. Laboratorio de Edafologia y Ambiente, Facultad de Ciencias, Universidad Autonoma del Estado de Mexico, Instituto Literario No. 100, Toluca 50000 (Mexico)
2. Centro Interamericano de Recursos del Agua, Facultad de Ingenieria, Universidad Autonoma del Estado de Mexico, Toluca 50000 (Mexico)
3. Colegio de Postgraduados, Instituto de Recursos Naturales. km 36.5 Carr, Mexico-Texcoco, Montecillo 56230 (Mexico)

The application of biosolids such as sewage sludge is a concern, because of the potential release of toxic metals after decomposition of the organic matter. The effect of application of sewage sludge (Sw) and compost (C) to the soil (S) on the Cu and Cd sorption, distribution and the quality of the dissolved organic matter (DOM) in the soil, was investigated under controlled conditions. Visible spectrophotometry, infrared spectroscopy, sorption isotherms (simple and competitive sorption systems), and sequential extraction methods were used. The E {sub 4}/E {sub 6} ({lambda} at 465 and 665 nm) ratio and the infrared spectra (IR) of DOM showed an aromatic behaviour in compost-soil (C-S); in contrast sewage sludge-soil (Sw-S) showed an aliphatic behaviour. Application of either Sw or C increased the Cu sorption capacity of soil. The Cd sorption decreased only in soil with a competitive metal system. The availability of Cu was low due to its occurrence in the acid soluble fraction (F3). The Cu concentration varied in accordance with the amounts of Cu added. The highest Cd concentration was found in the exchangeable fraction (F2). The Sw and C applications did not increase the Cd availability in the soil.

• OSTI ID: 20877398
• Journal Information: Waste Management, Journal Name: Waste Management Journal Issue: 1 Vol. 26; ISSN WAMAE2; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTROSCOPY
CADMIUM
COMPOST
COPPER
DECOMPOSITION
INFRARED SPECTRA
ISOTHERMS
ORGANIC MATTER
SEWAGE SLUDGE
SOILS
SORPTION
SPECTROPHOTOMETRY