algerian journal of environmental science and technology
Volume 3, Numéro 3, Pages 574-582
2017-12-30
Recovery Of Sludge Of Waste Water Treatment Plant: Case Study Of Guelma Station
Authors : Bougherara H. .
Abstract
The analysis of metal contamination of Guelma station’s sludge has been determined by X-ray fluorescence spectroscopy. It helped to identifythe following constituents: Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, As, Br, Rb, Sr, Y, Zr, Mo, Mg, Cd, Ba, Lu and Pb. These elements represent 47.96% of the total mass of sludge. The indicator elements of pollution existence are: zinc, lead, copper, chromium and nickel. Their content in the sludge treatment plant of Guelma are respectively: 1.61 mg/g, 0.49 mg/g, 0.45 mg/g, 0.18 mg/g and 0.09 mg/g. The assessment of nitrate ions concentration, chemical oxygen demand (COD) and pH was obtained after extraction in aqueous solution. The analysis showed that filtrate contained 0.09 mg/g of nitrate that its COD was 0.72 mg/g and its pH was 7.01.
Keywords
Purification plants; Sludge; MTE; Spreading; WWTP of Guelma.
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