Adsorption of organic pollutants from dairy wastewater on soil: pollution problem and control

Maher Al-Jabari, Nadia Iqefan, Nareman Zahdeh and Hiba Dweik

International Journal of Global Environmental Issues, 2017, vol. 16, issue 1/2/3, 149-161

Abstract: This paper responds to the need of controlling the industrial pollution resulting from dairy industry. It investigates the adsorption of organic pollutants in dairy wastewater onto soil particles, from two angles: soil pollution possibility and wastewater treatment. Experimental research methodology is used, by performing batch adsorption experiments. The obtained kinetic curves of COD, BOD and pollutant surface concentration enable analysing the performance of the adsorption process. Experimental parametric study is performed. It includes the effect of pH, dosage, stirring rate and organics initial concentration. The results indicate that acidic soils will be polluted with dairy wastewater more than alkaline soil. Experimental kinetic curves are modelled with pseudo first order and second order rate equations. The kinetics is found to be best fitted by pseudo second order model.

Keywords: COD; chemical oxygen demand; soil contamination; pollutant adsorption; organic pollutants; dairy wastewater; environmental pollution; pollution control; industrial pollution; biochemical oxygen demand; BOD; biological oxygen demand; wastewater treatment; kinetic curves; acidic soils; alkaline soils; modelling. (search for similar items in EconPapers)
Date: 2017
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