Phosphate Removal from Digested Sludge Supernatant Using Modified Fly Ash

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	Phosphate Removal from Digested Sludge Supernatant Using Modified Fly Ash
	Xu, Ke 1; Deng, Tong 2; Liu, Juntan 1; Peng, Weigong 1
刊名	WATER ENVIRONMENT RESEARCH
	2012-05-01
卷号	84 期号:5 页码:411-416
关键词	fly ash modification digested sludge supernatant phosphate removal
ISSN号	1061-4303
其他题名	Water Environ. Res.
中文摘要	The removal of phosphate in digested sludge supernatant by modified coal fly ash was investigated in this study. Modification of the fly ash by the addition of sulfuric acid could significantly enhance its immobilization ability. The experimental results also showed that adsorption of phosphate by the modified fly ash was rapid with the removal percentage of phosphate reaching an equilibrium of 98.62% in less than 5 minutes. The optimum pH for phosphate removal was 9 and the removal percentage increased with increasing adsorbent dosage. The effect of temperature on phosphate removal efficiency was not significant from 20 to 40 degrees C. X-ray diffraction and scanning electron microscope analyses showed that phosphate formed an amorphous precipitate with water-soluble calcium, aluminum, and iron ions in the modified fly ash. Water Environ. Res., 84, 411 (2012).
英文摘要	The removal of phosphate in digested sludge supernatant by modified coal fly ash was investigated in this study. Modification of the fly ash by the addition of sulfuric acid could significantly enhance its immobilization ability. The experimental results also showed that adsorption of phosphate by the modified fly ash was rapid with the removal percentage of phosphate reaching an equilibrium of 98.62% in less than 5 minutes. The optimum pH for phosphate removal was 9 and the removal percentage increased with increasing adsorbent dosage. The effect of temperature on phosphate removal efficiency was not significant from 20 to 40 degrees C. X-ray diffraction and scanning electron microscope analyses showed that phosphate formed an amorphous precipitate with water-soluble calcium, aluminum, and iron ions in the modified fly ash. Water Environ. Res., 84, 411 (2012).
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]	Engineering, Environmental ; Environmental Sciences ; Limnology ; Water Resources
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
关键词[WOS]	CONSTRUCTED WETLAND SYSTEMS ; AQUEOUS-SOLUTION ; IMMOBILIZATION ; SLAG
收录类别	SCI
原文出处	://WOS:000305468200004
语种	英语
WOS记录号	WOS:000305468200004
公开日期	2013-11-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6432]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Zhengzhou Inst Aeronaut Ind Management, Dept Civil Engn & Construct Engn, Zhengzhou 450015, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ke,Deng, Tong,Liu, Juntan,et al. Phosphate Removal from Digested Sludge Supernatant Using Modified Fly Ash[J]. WATER ENVIRONMENT RESEARCH,2012,84(5):411-416.
APA	Xu, Ke,Deng, Tong,Liu, Juntan,&Peng, Weigong.(2012).Phosphate Removal from Digested Sludge Supernatant Using Modified Fly Ash.WATER ENVIRONMENT RESEARCH,84(5),411-416.
MLA	Xu, Ke,et al."Phosphate Removal from Digested Sludge Supernatant Using Modified Fly Ash".WATER ENVIRONMENT RESEARCH 84.5(2012):411-416.