Novel recycling of incinerated sewage sludge ash (ISSA) and waste bentonite as ceramsite for Pb-containing wastewater treatment: Performance and mechanism

doi:10.1016/j.jenvman.2021.112382

	Novel recycling of incinerated sewage sludge ash (ISSA) and waste bentonite as ceramsite for Pb-containing wastewater treatment: Performance and mechanism
	Nie, Jing 2,3; Wang, Qiming 2,4; Gao, Shengya 2; Poon, Chi Sun 2,4; Zhou, Yaoyu 3; Li, Jiang-shan 1,4
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2021-06-15
卷号	288 页码:11
关键词	Incinerated sewage sludge ash Ceramsite Pb Adsorption
ISSN号	0301-4797
DOI	10.1016/j.jenvman.2021.112382
英文摘要	With rapid economic growth and urbanisation, the reuse and recycling of solid wastes has become a high priority for the sustainable development of modern cities. In this study, two typical solid wastes, incinerated sewage sludge ash (ISSA) and waste bentonite, were co-valorised to produce granular adsorbents through a simple and energy-saving pelletisation/sintering process. A mixture of ISSA and bentonite at a weight ratio of 3:1 was pelletised and sintered at 700 ?C. The resultant ceramsite, with good mechanical strength, could effectively remove Pb(II) from aqueous solutions. The adsorption kinetics can be described by the pseudo-first-order (PFO) model. The results indicated that the Pb(II) adsorption process was dominated by electrostatic attraction, precipitation, and complexation. The isothermal data exhibited a good correlation with the Freundlich model, indicating that the adsorption process was non-ideal and spontaneous. The maximum adsorption capacity was approximately 21.6 ? 0.35 mg/g at 318 K. After 5 cycles of regeneration, the adsorbent maintained good adsorption performance. Moreover, the removal rate was not greatly affected by ionic strength. These findings demonstrate that the granular adsorbent prepared with ISSA and waste bentonite can be recognised as a promising adsorbent for Pb-containing wastewater treatment.
资助项目	National Natural Science Foundation of China[51861165104] ; Hong Kong Research Grants Council Joint Research Scheme[N_PolyU511/18] ; Environment and Conservation Fund of the Hong Kong SAR government[P0014071]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000644084500004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/27280]
专题	中科院武汉岩土力学所
通讯作者	Poon, Chi Sun; Li, Jiang-shan
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 3.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China 4.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Hung Hom, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Nie, Jing,Wang, Qiming,Gao, Shengya,et al. Novel recycling of incinerated sewage sludge ash (ISSA) and waste bentonite as ceramsite for Pb-containing wastewater treatment: Performance and mechanism[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2021,288:11.
APA	Nie, Jing,Wang, Qiming,Gao, Shengya,Poon, Chi Sun,Zhou, Yaoyu,&Li, Jiang-shan.(2021).Novel recycling of incinerated sewage sludge ash (ISSA) and waste bentonite as ceramsite for Pb-containing wastewater treatment: Performance and mechanism.JOURNAL OF ENVIRONMENTAL MANAGEMENT,288,11.
MLA	Nie, Jing,et al."Novel recycling of incinerated sewage sludge ash (ISSA) and waste bentonite as ceramsite for Pb-containing wastewater treatment: Performance and mechanism".JOURNAL OF ENVIRONMENTAL MANAGEMENT 288(2021):11.