Microwave pretreatment of polyacrylamide flocculated waste activated sludge: Effect on anaerobic digestion and polyacrylamide degradation

被引：36

作者：

Liu, Xuran ^{[1
,2
]}

Xu, Qiuxiang ^{[1
,2
]}

Wang, Dongbo ^{[1
,2
]}

Wu, Yanxin ^{[1
,2
]}

Fu, Qizi ^{[1
,2
]}

Li, Yifu ^{[1
,2
]}

Yang, Qi ^{[1
,2
]}

Liu, Yiwen ^{[3
]}

Ni, Bing-Jie ^{[3
]}

Wang, Qilin ^{[3
]}

Yang, Guojing ^{[4
]}

Li, Hailong ^{[5
]}

Li, Xiaoming ^{[1
,2
]}

机构：

[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China

[3] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Sydney, NSW 2007, Australia

[4] Zhejiang Wanli Univ, Coll Biol & Environm Sci, Ningbo 315100, Zhejiang, Peoples R China

[5] Cent S Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 290卷

关键词：

Waste activated sludge; Polyacrylamide; Microwave; Anaerobic digestion; Methane; FREE NITROUS-ACID; METHANE PRODUCTION; SEWAGE-SLUDGE; FREE AMMONIA; CATIONIC POLYACRYLAMIDE; DISINTEGRATION; IRRADIATION; MECHANISMS; ALKALINE; DEWATERABILITY;

D O I：

10.1016/j.biortech.2019.121776

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Deterioration of anaerobic digestion can occur with the presence of polyacrylamide (PAM) in waste activated sludge, but the information on alleviating this deterioration is still limited. In this study, the simultaneous alleviation of negative effect of PAM and improvement of methane production during anaerobic digestion was accomplished by microwave pretreatment. Experimental results showed that with the microwave pretreatment times increased from 0 to 12 min, the biochemical methane potential of PAM-flocculated sludge (12 g PAM/kg total solids) asymptotically increased from 123.1 to 242.5 mL/g volatile solids, hydrolysis rate increased from 0.06 to 0.13 d(-1). Mechanism analysis indicated that the microwave pretreatment accelerated the release and hydrolysis of organic substrates from PAM-flocculated sludge, facilitated the breaking of large firm "PAMsludge" floccules, and benefited the degradation of PAM, which alleviated the PAM inhibitory impacts on digestion and meanwhile provided better contact between the released organic substrates and anaerobic bacteria for methane production.

引用

页数：8

共 50 条

[1] Effect of microwave irradiation on the disintegration and acidogenesis of municipal secondary sludge [J].

Ahn, Johng-Hwa ;

Shin, Seung Gu ;

Hwang, Seokhwan .

CHEMICAL ENGINEERING JOURNAL, 2009, 153 (1-3) :145-150

[2] Inhibition of anaerobic digestion processes: Applications of molecular tools [J].

Amha, Yamrot M. ;

Anwar, Muhammad Zohaib ;

Brower, Andrew ;

Jacobsen, Carsten S. ;

Stadler, Lauren B. ;

Webster, Tara M. ;

Smith, Adam L. .

BIORESOURCE TECHNOLOGY, 2018, 247 :999-1014

[3] Microwave-assisted conversion of biomass and waste materials to biofuels [J].

Bundhoo, Zumar M. A. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2018, 82 :1149-1177

[4] Feasibility study of the anaerobic digestion of dewatered pig slurry by means of polyacrylamide [J].

Campos, E. ;

Almirall, M. ;

Mtnez-Almela, J. ;

Palatsi, J. ;

Flotats, X. .

BIORESOURCE TECHNOLOGY, 2008, 99 (02) :387-395

[5] Size-dependent anaerobic digestion rates of flocculated activated sludge: Role of intrafloc mass transfer resistance [J].

Chu, CP ;

Tsai, DG ;

Lee, DJ ;

Tay, JH .

JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2005, 76 (03) :239-244

[6] Biodegradation of polyacrylamide by anaerobic digestion under mesophilic condition and its performance in actual dewatered sludge system [J].

Dai, Xiaohu ;

Luo, Fan ;

Yi, Jing ;

He, Qunbiao ;

Dong, Bin .

BIORESOURCE TECHNOLOGY, 2014, 153 :55-61

[7] Alkaline solubilization and microwave irradiation as a combined sludge disintegration and minimization method [J].

Dogan, Ilgin ;

Sanin, F. Dilek .

WATER RESEARCH, 2009, 43 (08) :2139-2148

[8] Effect of deflocculation on the efficiency of low-energy microwave pretreatment and anaerobic biodegradation of waste activated sludge [J].

Ebenezer, A. Vimala ;

Arulazhagan, P. ;

Kumar, S. Adish ;

Yeom, Ick-Tae ;

Banu, J. Rajesh .

APPLIED ENERGY, 2015, 145 :104-110

[9] Athermal microwave effects for enhancing digestibility of waste activated sludge [J].

Eskicioglu, Ciydem ;

Terzian, Nicolas ;

Kennedy, Kevin J. ;

Droste, Ronald L. ;

Hamoda, Mohamed .

WATER RESEARCH, 2007, 41 (11) :2457-2466

[10] Effect of alkaline addition on anaerobic sludge digestion with combined pretreatment of alkaline and high pressure homogenization [J].

Fang, Wei ;

Zhang, Panyue ;

Zhang, Guangming ;

Jin, Shuguang ;

Li, Dongyi ;

Zhang, Meixia ;

Xu, Xiangzhe .

BIORESOURCE TECHNOLOGY, 2014, 168 :167-172

← 1 2 3 4 5 →