Anaerobic digestion of recalcitrant textile dyeing sludge with alternative pretreatment strategies

被引：31

作者：

Xiang, Xinyi ^{[1
]}

Chen, Xiaoguang ^{[1
,2
]}

Dai, Ruobin ^{[1
]}

Luo, Ying ^{[1
]}

Ma, Puyue ^{[1
]}

Ni, Shengsheng ^{[1
]}

Ma, Chengyu ^{[1
,2
]}

机构：

[1] Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China

[2] State Environm Protect Engn Ctr Pollut Treatment, Shanghai 201620, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 222卷

基金：

中国国家自然科学基金;

关键词：

Thermal pretreatment; Thermal alkaline pretreatment; Dyes; Aromatic amines; Dewaterability; EXTRACELLULAR POLYMERIC SUBSTANCES; WASTE ACTIVATED-SLUDGE; BIOGAS PRODUCTION; METHANE PRODUCTION; WATER; DEWATERABILITY; SOLUBILIZATION; PERFORMANCE; DYES;

D O I：

10.1016/j.biortech.2016.09.098

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 20 days. 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 55.9 mL/g VSfed 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. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：252 / 260

页数：9

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