Geochemical and Geophysical Study in a Degraded Area Used for Disposal of Sludge from a Water Treatment Plant | Zendy

Ricardo Cosme Arraes Moreira | Zendy; Géraldo Resende Boaventura | Zendy; Sandra Alves Nunes | Zendy; Luciano de Almeida Pinheiro | Zendy; Carlos Tadeu Carvalho do Nascimento | Zendy; Davi Rodrigues da Silva | Zendy; Christiane de Pinna Lira | Zendy

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Geochemical and Geophysical Study in a Degraded Area Used for Disposal of Sludge from a Water Treatment Plant

Author(s) -

Ricardo Cosme Arraes Moreira,

Géraldo Resende Boaventura,

Sandra Alves Nunes,

Luciano de Almeida Pinheiro,

Carlos Tadeu Carvalho do Nascimento,

Davi Rodrigues da Silva,

Christiane de Pinna Lira

Publication year - 2011

Publication title -

applied and environmental soil science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.431

H-Index - 23

eISSN - 1687-7675

pISSN - 1687-7667

DOI - 10.1155/2011/489182

Subject(s) - groundwater , laterite , rainwater harvesting , infiltration (hvac) , geology , hydrology (agriculture) , environmental science , soil science , geotechnical engineering , nickel , ecology , materials science , physics , metallurgy , biology , thermodynamics

The effects of disposal of sludge from water treatment plant (WTS) in area damaged by laterite extraction and its consequences to soil and groundwater were investigated. Therefore, the presence and concentration of anthropogenic elements and chemical compounds were determinated. WTS disposal's influence was characterized by electroresistivity method. The WTS's geochemical dispersion was noticed in the first meters of the nonsaturated zone from the lending area. Lateritic profiles were characterized due to the large variation in chemical composition between the horizons. Infiltration and percolation of rainwater through the WTS have caused migration of total dissolved solids to the groundwater. WTS's disposing area has more similarities to local preserved vegetation than to gravel bed area. WTS can be considered a noninert residue if disposed in degraded areas located in regions with similar geological and hydrochemical characteristics

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