期刊
BIORESOURCE TECHNOLOGY
卷 221, 期 -, 页码 1-8出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.09.012
关键词
Sludge biomass; Energetic analysis; Biodegradability; Fenton treatment; Sonic disintegration
资金
- DST, India [SR/FTP/ETA-0021/2010]
Mechanical disintegration of sludge through ultrasonication demands high energy and cost. Therefore, in the present study, a comprehensive investigation was performed to analyze the potential of a novel method, fenton mediated sonic disintegration (FSD). In FSD process, extracellular polymeric substance (EPS) of sludge was first removed via fenton treatment. It was subsequently disintegrated via ultrasonication. Energetic assessment and economic analysis were then performed using net energy and cost gain (spent) as key factor to evaluate the practical viability of the FSD process. FSD was found to be superior over sonic disintegration based on its higher sludge solubilization (34.4% vs. 23.2%) and methane production potential (0.3 g COD/g COD vs. 0.2 g COD/g COD). Both energy analysis and cost assessment of the present study revealed that FSD could reduce the energy demand of ultrasonication considerably with a positive net profit of about 44.93 USD/Ton of sludge. (C) 2016 Elsevier Ltd. All rights reserved.
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