By Huang O., Huang P.M., Violante A.

ISBN-10: 3540776850

ISBN-13: 9783540776857

ISBN-10: 3540776869

ISBN-13: 9783540776864

The e-book provides the newest study findings and clients on soil mineral-organic matter-microorganism interactions. It comprises subject matters protecting mechanisms of ameliorations, dynamics and bioavailability of heavy metals, radionuclides, biomolecules and nutrition immobilized on soil minerals, humic ingredients, mineral-humic complexes and microorganisms and their influence on plant, animal and human overall healthiness. The publication includes six components: 1) Transformation and dynamics of toxins in soil environments, 2) Chemical, organic and biochemical techniques within the rhizosphere, three) Bioavailability of metals and xenobiotics immobilized on soil parts, four) Distribution and job of biomolecules in terrestrial structures, five) Interactions among soil microbial biomass and natural matter/nutrient alterations, and six) influence of interactions between soil mineral colloids, natural subject and biota on chance evaluation and recovery of terrestrial ecosystems.

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Additional info for Soil Mineral - Microbe-Organic Interactions: Theories and Applications

Sample text

Because of their small size, microorganisms provide a large contact area that interact with metals in the environment. Microbial metal accumulation has recently received much attention particularly due to the potential use of microorganisms for cleaning metal-polluted water. (Sag 2001; Fomina and Gadd 2003; Arica and Bayramolgu 2005; Bishnoi and Garima 2005; Kahraman et al. 2005; Pal et al. 2006). The different accumulation processes that microorganisms perform have been analyzed and their potential significance in soil systems has been addressed (Ledin 2000).

2006). 0 (Buschmann et al. 2006; Ritter et al. 2006). 42 A. Violante et al. Sorption of arsenic onto minerals and soils varies with pH. 0 on montmorillonite. 5 for illite. Sorption of arsenite onto phyllosilicate clay minerals has also been studied (Manning and Goldberg 1997a). Arsenate and arsenite have different trend in sorption on variable charge minerals (Inskeep et al. 2002). Many studies have demonstrated that arsenite is sorbed on Al-oxides, phyllosilicates and calcite in a lesser extent than arsenate, whereas the opposite is true for iron oxides (Frankenberger 2002; Martin et al.

2007a). 5 (Hsu 1989; Cornell and Schwertmann 1996; Kampf et al. 2000). 0. Raven et al. (1998) showed that arsenite has a greater sorption capacity on ferrihydrite and goethite than arsenate except at very low solution concentrations. Furthermore, Martin et al. (2007b) ascertained that iron oxides can sorb more arsenite than arsenate, although the K of Langmuir isotherms which is a constant related to the binding energy is always lower for arsenite than for arsenate. Chemical behavior of arsenate is similar to that of phosphate and may form different surface complexes (inner-sphere complexes) on inorganic soil components: monodentate, bidentate-binuclear and bidentate-mononuclear complex in different proportions depending on pH and surface coverage (Hsia et al.

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Soil Mineral - Microbe-Organic Interactions: Theories and Applications by Huang O., Huang P.M., Violante A.


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