Effects of thermal and thermal-alkaline pretreatments on continuous anaerobic sludge digestion: Performance, energy balance and, enhancement mechanism

被引：58
作者：
Chen, Hong [1 ]
Yi, Hao [2 ]
Li, Hechao [3 ]
Guo, Xuesong [4 ]
Xiao, Benyi [4 ]
机构：
[1] Changsha Univ Sci & Technol, Sch Hydraul Engn, Key Lab Water Sediment Sci & Water Disaster Preve, Changsha 410004, Peoples R China
[2] Minist Environm Protect, South China Inst Environm Sci, Guangzhou 510655, Peoples R China
[3] Technol Review Ctr Shenzhen Habit & Environm, Shenzhen 518033, Peoples R China
[4] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
来源：
RENEWABLE ENERGY | 2020年 / 147卷
关键词：
Continuous anaerobic sludge digestion; Energy balance; Enhancement mechanism; Thermal pretreatment; Thermal-alkaline pretreatment; WASTE ACTIVATED-SLUDGE; WATER TREATMENT PLANTS; SEWAGE-SLUDGE; BIOGAS PRODUCTION; MICROALGAL BIOMASS; METHANE PRODUCTION; CO-DIGESTION; FOOD WASTE; HYDROLYSIS; SOLIDS;
D O I：
10.1016/j.renene.2019.10.051
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The effects of thermal pretreatment (TP) and thermal-alkaline pretreatment (TAP) on a continuous mesophilic anaerobic digestion (AD) of sewage sludge were investigated. Both TP (134 +/- 1 degrees C and 30 min) and TAP (pH 12, 134 +/- degrees C and 30 min) released, hydrolyzed, and mineralized the organic matter of sludge, but TAP provided superior results. The methane yields of thermal pretreated sludge (TPS) and thermal-alkaline pretreated sludge (TAPS) were 1.88 times and 2.20 times that of raw sludge (RS), respectively. Moreover, the average methane content of biogas produced from TAPS (73.4 +/- 3.4%) was higher than that from TPS (69.1 +/- 3.1%) and from RS (67.2 +/- 2.9%). The energy balance of the total process with TAP was the highest (4.326 kJ/g VS) and that of the RS AD was the lowest (2.045 kJ/g VS). Both pretreatments enhanced the sludge hydrolysis with TAP presenting higher efficiency, and shifted the rate-limiting step of the anaerobic sludge digestion from hydrolysis to methanogenesis. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2409 / 2416
页数：8
相关论文
共 39 条
[31]   Upgrading of anaerobic digestion of waste activated sludge by temperature-phased process with recycle [J].
Wu, Li-Jie ;
Qin, Yu ;
Hojo, Toshimasa ;
Li, Yu-You .
ENERGY, 2015, 87 :381-389
[32]   Biogas production by two-stage thermophilic anaerobic co-digestion of food waste and paper waste: Effect of paper waste ratio [J].
Xiao, Benyi ;
Zhang, Wenzhe ;
Yi, Hao ;
Qin, Yu ;
Wu, Jing ;
Liu, Junxin ;
Li, Yu-You .
RENEWABLE ENERGY, 2019, 132 :1301-1309
[33]   Comparison of single-stage and two-stage thermophilic anaerobic digestion of food waste: Performance, energy balance and reaction process [J].
Xiao, Benyi ;
Qin, Yu ;
Qu, Jing ;
Chen, Hong ;
Yu, Panfen ;
Liu, Junxin ;
Li, Yu-You .
ENERGY CONVERSION AND MANAGEMENT, 2018, 156 :215-223
[34]   Bioelectrochemical enhancement of the anaerobic digestion of thermal-alkaline pretreated sludge in microbial electrolysis cells [J].
Xiao, Benyi ;
Chen, Xia ;
Han, Yunping ;
Liu, Junxin ;
Guo, Xuesong .
RENEWABLE ENERGY, 2018, 115 :1177-1183
[35]   Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge [J].
Xiao, Benyi ;
Dai, Qin ;
Yu, Xiao ;
Yu, Panfen ;
Zhai, Shimin ;
Liu, Rongzhan ;
Guo, Xuesong ;
Liu, Junxin ;
Chen, Hong .
JOURNAL OF HAZARDOUS MATERIALS, 2018, 343 :347-355
[36]   Evaluation of thermal, thermal-alkaline, alkaline and electrochemical pretreatments on sludge to enhance anaerobic biogas production [J].
Xu, Jianbo ;
Yuan, Haiping ;
Lin, Jinxian ;
Yuan, Wenxiang .
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2014, 45 (05) :2531-2536
[37]   Influence of NaOH and thermal pretreatment on dewatered activated sludge solubilisation and subsequent anaerobic digestion: Focused on high-solid state [J].
Zhang, Shuting ;
Guo, Haigang ;
Du, Lianzhu ;
Liang, Junfeng ;
Lu, Xuebin ;
Li, Nan ;
Zhang, Keqiang .
BIORESOURCE TECHNOLOGY, 2015, 185 :171-177
[38]   Overview of pretreatment strategies for enhancing sewage sludge disintegration and subsequent anaerobic digestion: Current advances, full-scale application and future perspectives [J].
Zhen, Guangyin ;
Lu, Xueqin ;
Kato, Hiroyuki ;
Zhao, Youcai ;
Li, Yu-You .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2017, 69 :559-577
[39]   Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs [J].
Zhou, Jun ;
Xu, Weizhong ;
Wong, Jonathan W. C. ;
Yong, Xiaoyu ;
Yan, Binghua ;
Zhang, Xueying ;
Jia, Honghua .
PLOS ONE, 2015, 10 (09)
1234