

@article {1506,
	title = {An innovative sewage sludge reduction by using a combined mesophilic anaerobic and thermophilic aerobic process with thermal-alkaline treatment and sludge recirculation},
	journal = {Journal of Environmental Management},
	volume = {129},
	year = {2013},
	note = {Cho, Hyun Uk Park, Sang Kyu Ha, Jeong Hyub Park, Jong Moon eng Evaluation Studies Research Support, Non-U.S. Gov{\textquoteright}t England 2013/08/24 06:00 J Environ Manage. 2013 Nov 15;129:274-82. doi: 10.1016/j.jenvman.2013.07.009. Epub 2013 Aug 22.},
	pages = {274-82},
	type = {Journal Article},
	abstract = {<p>Lab-scale High Efficiency Digestion (HED) systems containing a Mesophilic Anaerobic Reactor (MAR), Thermophilic Aerobic Reactor (TAR), liquid/solid separation unit, and thermal-alkaline treatment were developed to evaluate the efficiencies of sludge reduction and methane production. The HED process was divided into three phases to examine the influence of sludge pretreatment and pretreated sludge recirculation using TCOD and VSS reduction, COD solubilization, and methane production. The VSS removal with a solid/liquid separation unit, sludge recirculation, and thermal-alkaline treatment drastically increased up to 95\% compared to the feed concentration. In addition, the results of COD solubilization and VSS/TSS showed that the solubilization of cells and organic matters by the thermal-alkaline treatment was highly increased, which was also consistent with the SEM images. In particular, the methane production rate increased 24-fold when the feed sludge and recirculated sludge were pretreated together. Collectively, the HED experiments performed with sludge recirculation and thermal-alkaline treatment demonstrated that the HED systems can be successfully employed for highly efficient sewage sludge reduction and methane gas production.</p>
},
	keywords = {Aerobiosis Anaerobiosis Biodegradation, Electron, Environmental Biofuels/*analysis Chromatography, Fluid/*methods High efficiency digestion system Mesophilic anaerobic reactor Methane production Sludge reduction Thermal-alkaline treatment Thermophilic aerobic reactor, Gas Chromatography, High Pressure Liquid Environmental Monitoring Environmental Restoration and Remediation/*methods Hot Temperature Microscopy, Scanning Sewage/*analysis Waste Disposal},
	issn = {1095-8630 (Electronic) 0301-4797 (Linking)},
	doi = {10.1016/j.jenvman.2013.07.009},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/23968913},
	author = {Cho, H. U. and Park, S. K. and Ha, J. H. and Park, J. M.}
}
