Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs

doi:10.1371/journal.pone.0136162

	Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs
	Zhou, Jun 1; Xu, Weizhong 2; Wong, Jonathan W. C.3; Yong, Xiaoyu 1; Yan, Binghua 4; Zhang, Xueying 2; Jia, Honghua 1
刊名	PLOS ONE
	2015-09-01
卷号	10 期号:9
ISSN号	1932-6203
DOI	10.1371/journal.pone.0136162
文献子类	Article
英文摘要	Effects of different pretreatment methods on sludge dewaterability and polycyclic aromatic hydrocarbons (PAHs) degradation during petrochemical sludge anaerobic digestion were studied. Results showed that the total biogas production volume in the thermal pretreatment system was 4 and 5 times higher than that in the ultrasound pretreatment and in the control system, and the corresponding volatile solid removal efficiencies reached 28%, 15%, and 8%. Phenanthrene, paranaphthalene, fluoranthene, benzofluoranthene, and benzopyrene removal rates reached 43.3%, 55.5%, 30.6%, 42.9%, and 41.7%, respectively, in the thermal pretreatment system, which were much higher than those in the ultrasound pretreatment and in the control system. Moreover, capillary suction time (CST) of sludge increased after pretreatment, and then reduced after 20 days of anaerobic digestion, indicating that sludge dewaterability was greatly improved after anaerobic digestion. The decrease of protein and polysaccharide in the sludge could improve sludge dewaterability during petrochemical sludge anaerobic digestion. This study suggested that thermal pretreatment might be a promising enhancement method for petrochemical sludge solubilization, thus contributing to degradation of the PAHs, biogas production, and improvement of dewaterability during petrochemical sludge anaerobic digestion.
WOS关键词	WASTE-ACTIVATED-SLUDGE ; EXTRACELLULAR POLYMERIC SUBSTANCES ; URBAN SLUDGE ; BIODEGRADATION ; REMOVAL ; MATRIX ; FLOCS ; EPS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000360437700031
资助机构	National Basic Research Program of China(2013CB733500) ; National Natural Science Foundation of China(21307058 ; Jiangsu Province Science Foundation for Youths(BK20130931) ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China(13KJB610006) ; Chinese Academy of Environmental and Application of Microbial Key Laboratory Fund Project(KLCAS-2013-05) ; 21207065)
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/10445]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Zhang, Xueying
作者单位	1.Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing, Jiangsu, Peoples R China 2.Nanjing Tech Univ, Coll Environm, Nanjing, Jiangsu, Peoples R China 3.Hong Kong Baptist Univ, Sinoforest Appl Res Ctr Pearl River Delta Environ, Dept Biol, Hong Kong, Hong Kong, Peoples R China 4.Chinese Acad Sci, Qingdao Inst Bioenergy & Bio Proc Technol, Lab Waste Valorisat & Water Reuse, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Jun,Xu, Weizhong,Wong, Jonathan W. C.,et al. Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs[J]. PLOS ONE,2015,10(9).
APA	Zhou, Jun.,Xu, Weizhong.,Wong, Jonathan W. C..,Yong, Xiaoyu.,Yan, Binghua.,...&Jia, Honghua.(2015).Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs.PLOS ONE,10(9).
MLA	Zhou, Jun,et al."Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs".PLOS ONE 10.9(2015).