Inhibition effects of high calcium concentration on anaerobic biological treatment of MSW leachate

Environmental Science and Pollution Research International
Yi XiaHua Zhang

Abstract

With the increasing use of municipal solid waste incineration (MSWI) and more stringent limits on landfilling of organic waste, more MSWI bottom ash is being landfilled, and the proportion of inorganic wastes in landfills is increasing, causing the increased Ca concentrations in landfill leachate. In this research, the inhibition effect of Ca concentration on the anaerobic treatment of landfill leachate was studied using a biochemical methane potential experiment. Slight inhibition of methane production occurred when the addition of Ca concentration was less than 2000 mg/L. When the addition of Ca concentration was between 6000 and 8000 mg/L, methane production was significantly reduced (to 29.4-34.8 % of that produced by the BLK reactor), and the lag phase was increased from 8.55 to 16.32 d. Moreover, when the dosage of Ca concentration increased from zero to 8000 mg/L, reductions in solution Ca concentration increased from 929 to 2611 mg/L, and the proportion of Ca in the residual sludge increased from 22.58 to 46.87 %. Based on the results, when the dosage of Ca concentration was less than 4000 mg/L, the formation of Ca precipitates on the surface of sludge appeared to prevent mass transfer and was the dominant reason for th...Continue Reading

References

Jun 1, 1990·Applied and Environmental Microbiology·M H ZwieteringK van 't Riet
Apr 17, 2008·Water Science and Technology : a Journal of the International Association on Water Pollution Research·D JeisonJ B Van Lier
Mar 11, 2009·Water Science and Technology : a Journal of the International Association on Water Pollution Research·I AngelidakiJ B van Lier
Apr 24, 2010·Journal of Environmental Management·Dong Qing ZhangRichard M Gersberg
Sep 18, 2010·Journal of Environmental Monitoring : JEM·Tonni Agustiono KurniawanMika E T Sillanpää
Apr 30, 2014·BioMed Research International·Wen-Bing LiDong-Sheng Shen

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Citations

Sep 25, 2017·Environmental Science and Pollution Research International·Syeed Md IskanderZhen He

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