Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge

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	Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge
	Xiao, Benyi; Chen, Hong; Liu, Junxin; Guo, Xuesong; Liu, Rongzhan; Zhai, Shimin; Yu, Panfen; Yu, Xiao; Dai, Qin
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2018-02-05
卷号	343 页码:347-355
关键词	Adsorption Biochar Cationic red X-GRL Sewage sludge Thermal-alkaline pretreatment
ISSN号	0304-3894
文献子类	Article
英文摘要	Thermal-alkaline pretreatment has traditionally been used to enhance anaerobic sludge digestion. In this study, after removing the supernatant, which could be used in anaerobic digestion, the Residual Solids of Thermal-Alkaline pretreated sewage Sludge (RSTAS) were used to prepare biochar via pyrolysis, which could then adsorb Cationic Red X-GRL(X-GRL). The experimental results showed that the RSTAS-biochar had a higher BET surface area and total pore volume than the biochar prepared from raw sludge (RS) (43.5% and 33.3%, respectively). The pretreatment enhanced the X-GRL adsorption capacity of the biochar by 1.5-49.2% at dosages between 12.5-100.0 g/g, and the highest adsorption capacity increased from 39.1 mg/g to 47.6 mg/g. The biochar from RSTAS had a wider application pH range for X-GRL adsorption. The kinetics and isotherms for X-GRL adsorption onto the two biochars were well fitted to the pseudo-second-order and Langmuir isotherm models, respectively, which suggested that thermal-alkaline pretreatment had little effect on the adsorption mechanisms of X-GRL onto biochar. (C) 2017 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41203]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Xiao, Benyi,Chen, Hong,Liu, Junxin,et al. Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,343:347-355.
APA	Xiao, Benyi.,Chen, Hong.,Liu, Junxin.,Guo, Xuesong.,Liu, Rongzhan.,...&Dai, Qin.(2018).Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge.JOURNAL OF HAZARDOUS MATERIALS,343,347-355.
MLA	Xiao, Benyi,et al."Effects of sludge thermal-alkaline pretreatment on cationic red X-GRL adsorption onto pyrolysis biochar of sewage sludge".JOURNAL OF HAZARDOUS MATERIALS 343(2018):347-355.