Response of extracellular polymeric substances and enzymatic activity to salinity for the waste activated sludge anaerobic fermentation process

被引：19

作者：

Jin, Baodan ^{[1
]}

Niu, Jintao ^{[2
]}

Zhang, Ju ^{[1
]}

Niu, Jiahui ^{[1
]}

Zhou, Ping ^{[1
]}

Dai, Jingwen ^{[1
]}

Li, Nuonan ^{[1
]}

Tao, Hongfan ^{[1
]}

Ma, Zhigang ^{[1
]}

Zhang, Zhongfang ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Henan Collaborat Innovat Ctr Environm Pollut Cont, Sch Mat & Chem Engn, Zhengzhou 450001, Henan, Peoples R China

[2] Henan Hengan Environm Protect Technol Co Ltd, Zhengzhou 450001, Henan, Peoples R China

来源：

BIOPROCESS AND BIOSYSTEMS ENGINEERING | 2020年 / 43卷 / 04期

关键词：

Waste activated sludge; Salinity; Extracellular polymeric substances; Biological enzyme; HESITANT FUZZY-SETS; GRANULAR SLUDGE; BATCH; ENHANCEMENT; DEGRADATION; EPS;

D O I：

10.1007/s00449-019-02253-z

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Salinity (NaCl) was used in waste activated sludge (WAS) anaerobic fermentation system which had been presented to greatly enhance the extracellular polymeric substance (EPS) production including protein and polysaccharide and short-chain fatty acids (SCFAs). Salinity enhanced soluble protein and polysaccharide (SB-EPS) release which was 4.04 times (protein) and 1.83 times (polysaccharide) compared to 0 g/L NaCl level. More important, salinity restrained the coenzyme 420 activity (F420), but increased the hydrolase activity. Abundant hydrolysis of substrate and highly active hydrolase led to abundant SCFA production. Pearson correlation coefficient showed that the protein became the main reaction substrate for SCFA generation. [GRAPHICS] .

引用

页码：737 / 745

页数：9

共 27 条

[1] Hydrolysis and acidification of waste activated sludge at different pHs [J].