Experimental data from a study using a landfill simulation reactor were used to develop and calibrate a one-dimensional distributed model of co-digestion of municipal solid waste and three phthalic acid diesters with different water solubilities. The three diesters were diethyl phthalate, dibutyl phthalate, and di-2-ethylhexyl phthalate. Two types of municipal solid wastes were assumed, easily degradable and recalcitrant. The model considered inhibition of hydrolysis of the recalcitrant fraction and phthalic acid esters, and also methanogenesis at acidic pH. The results indicated that the prolonged steady-state concentrations of the diesters in the leachates could be explained by equilibrium between physicochemical desorption and sorption processes for the three diesters. When methanogenic conditions were induced in the acidogenic landfill simulation reactor, inhibition of both hydrolysis of recalcitrant MSW and of phthalic acid esters ceased.
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April 01 2006
Phthalate hydrolysis under landfill conditions Available to Purchase
S. Jonsson;
*Department of Water and Environmental Studies, Linköping University, SE-581 83 Linköping, Sweden, (E-mail: [email protected]; [email protected])
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V.A. Vavilin;
V.A. Vavilin
**Water Problems Institute of the Russian Academy of Sciences, Gubkina 3, Moscow, 119991, Russia, (E-mail: [email protected])
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B.H. Svensson
B.H. Svensson
*Department of Water and Environmental Studies, Linköping University, SE-581 83 Linköping, Sweden, (E-mail: [email protected]; [email protected])
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Water Sci Technol (2006) 53 (8): 119–127.
Citation
S. Jonsson, V.A. Vavilin, B.H. Svensson; Phthalate hydrolysis under landfill conditions. Water Sci Technol 1 April 2006; 53 (8): 119–127. doi: https://doi.org/10.2166/wst.2006.242
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