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Bioresour Technol

Title:		Anaerobic digestion of recalcitrant textile dyeing sludge with alternative pretreatment strategies
Author(s):		Xiang X; Chen X; Dai R; Luo Y; Ma P; Ni S; Ma C;
Address:		"College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Shanghai 201620, China. Electronic address: cxg@dhu.edu.cn. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Shanghai 201620, China"
Journal Title:		Bioresour Technol
Year:		2016
Volume:		20161003
Issue:
Page Number:		252 - 260
DOI:		10.1016/j.biortech.2016.09.098
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Abundant organic compounds in textile dyeing sludge (TDS) provide possibility for its anaerobic digestion (AD) treatment. However, preliminary test showed little biogas generation in direct AD of the TDS during 20days. In order to improve the AD availability of TDS, alkaline, acid, thermal and thermal alkaline pretreatments were performed. Color and aromatic amines were specifically measured as extra characteristics for the AD of TDS. The rate-limiting steps of AD of TDS were slow hydrolysis rate and inhibited acidogenesis, which were somewhat overcome by pretreatments. Thermal alkaline pretreated TDS performed best enhancement on solubilisation. The biochemical methane potential tests revealed that thermal pretreated TDS showed highest total methane production of 55.9mL/gVS(fed) compared to the control with little methane generation. However, thermal alkaline pretreated TDS did not perform well in BMP test as expected. Moreover, the hydrophilicity of reactive dyes in TDS could seriously affect dewaterability of TDS"
Keywords:		"Anaerobiosis Biological Oxygen Demand Analysis Coloring Agents/*chemistry Fatty Acids, Volatile/metabolism Hydrochloric Acid/pharmacology Hydrolysis Methane/metabolism Polysaccharides/analysis Proteins/analysis Refuse Disposal/*methods Sewage/*chemistry S;"
Notes:		"MedlineXiang, Xinyi Chen, Xiaoguang Dai, Ruobin Luo, Ying Ma, Puyue Ni, Shengsheng Ma, Chengyu eng England 2016/10/30 Bioresour Technol. 2016 Dec; 222:252-260. doi: 10.1016/j.biortech.2016.09.098. Epub 2016 Oct 3"