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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3292

Title: In situ batch denitrification of nitrate rich groundwater using sawdust as a carbon source - Marydale, South Africa
Authors: Israel, S
Engelbrecht, P
Tredoux, G
Fey, MV
Keywords: In situ denitrification
South Africa
Dissolved organic carbon
DOC
Heterotrophic plate count
HPC
Methaemoglobinaemia
Denitrification
Groundwater
Sawdust analyses
Issue Date: 2009
Publisher: Springer Verlag
Citation: Israel, S, Engelbrecht, P, Tredoux, G and Fey, MV. 2009. In situ batch denitrification of nitrate rich groundwater using sawdust as a carbon source - Marydale, South Africa. Water Air and Soil Pollution, pp 42
Abstract: Batch experiments were performed to denitrify groundwater using sawdust as a carbon source at Marydale, South Africa. Alkalinity, pH, Electrical Conductivity, nitrate, nitrite, ammonia, SO42-, heterotrophic plate count (HPC), dissolved organic carbon (DOC), potassium and chloride was monitored. Two soil depths, 75 to 100cm and 165 to 200cm respectively, from the Marydale area were used as matrix material during denitrification based on contrasting chemical composition with respect to major ion composition and moisture to consider different denitrification rates for varying soil depths. Different N: C ratios were used to evaluate the denitrification efficiency and the least undesirable products e.g. elevated SO42-, H2S and other reduced compounds. DOC is directly proportional to the N: C ratio used. Nitrite was produced for most of the treatments as incomplete denitrification occurred
Description: Copyright: 2009 Springer Verlag
URI: http://hdl.handle.net/10204/3292
ISSN: 0049-6979
Appears in Collections:Pollution and waste
Water resources and human health
Ecosystems processes & dynamics
General science, engineering & technology

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