%0 Journal Article
	%A Aare Kuusik and  E. Loigu and  O. Sokk and  Argo Kuusik
	%D 2012
	%J International Journal of Environmental and Ecological Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 67, 2012
	%T Enhancement of Methane Productivity of Anaerobic Reactors of Wastewater Treatment Plants
	%U https://publications.waset.org/pdf/9223
	%V 67
	%X This paper describes technological possibilities to
enhance methane productionin the anaerobic stabilization of wastewater treatment plant excess sludge. This objective can be achieved by the addition of waste residues: crude glycerol from biodiesel production and residues from fishery. The addition
ofglycerol in an amount by weight of 2 – 5% causes enhancement of methane production of about 250 – 400%. At the same time the
percentage increase of total solids concentration in the outgoing sludge is ten or more times less. The containment of methane in
biogas is higher in case of admixed substrate.
	%P 460 - 462