Adsorption of 2-methylisoborneol and geosmin by a low-cost hybrid adsorbent synthesized from fly ash and bentonite

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	Adsorption of 2-methylisoborneol and geosmin by a low-cost hybrid adsorbent synthesized from fly ash and bentonite
	Liu, Liming 1,2,3; Li, Lin 1; Zuo, Yanxia 1; Huang, Yingping 3; Song, Lirong 1
刊名	JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA
	2011
卷号	60 期号:8 页码:478-485
关键词	adsorption bentonite fly ash geosmin 2-methylisoborneol
ISSN号	0003-7214
英文摘要	This paper describes the synthesis of a low-cost hybrid adsorbent from activation of fly ash and bentonite to remove 2-methylisoborneol (MIB) and geosmin from water. These substances produce objectionable taste and odor problems at levels as low as 4-10 ng/L and an effective, low-cost method of removal would be useful. The effect of the initial pH, contact time and adsorbent dosage on the adsorption process was investigated. In the range of 42-234 ng/L of MIB and geosmin, the maximal adsorption efficiency was obtained at the conditions of a dose level of 15 mg/L adsorbent, pH 8 and 60 min contact time, reaching 59.9 and 63.7%, respectively. Comparing to the natural fly ash and bentonite, the adsorbent showed higher surface area and micropores. The interlayer distance of the hybrid adsorbent was 0.59 nm, in accord with the molecular dimension of MIB and geosmin. The effect of humic acid, representative of natural organic matter (NOM), on MIB and geosmin adsorption was investigated for absorbent systems and indicated the presence of NOM would decrease adsorption slightly. The leaching experiments showed that the leaching of heavy metals from the adsorbent was negligible.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Civil ; Water Resources
研究领域[WOS]	Engineering ; Water Resources
关键词[WOS]	ACTIVATED CARBON ADSORPTION ; DRINKING-WATER ; COMPETITIVE ADSORPTION ; SULFURIC-ACID ; PORE-SIZE ; REMOVAL ; MIB ; MODEL ; TASTE ; NOM
收录类别	SCI
语种	英语
WOS记录号	WOS:000298411500002
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/28795]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.China Three Gorges Univ, Engn Res Ctr Ecoenvironm Gorges Reservoir Reg 3, Minist Educ, Yichang 443002, Peoples R China
推荐引用方式 GB/T 7714	Liu, Liming,Li, Lin,Zuo, Yanxia,et al. Adsorption of 2-methylisoborneol and geosmin by a low-cost hybrid adsorbent synthesized from fly ash and bentonite[J]. JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA,2011,60(8):478-485.
APA	Liu, Liming,Li, Lin,Zuo, Yanxia,Huang, Yingping,&Song, Lirong.(2011).Adsorption of 2-methylisoborneol and geosmin by a low-cost hybrid adsorbent synthesized from fly ash and bentonite.JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA,60(8),478-485.
MLA	Liu, Liming,et al."Adsorption of 2-methylisoborneol and geosmin by a low-cost hybrid adsorbent synthesized from fly ash and bentonite".JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA 60.8(2011):478-485.