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ENHANCING PHOSPHATE REMOVAL BY COAGULATION USING POLYELECTROLYTES AND RED MUD

文献类型：期刊论文

作者Chen, Jing1,3; Luan, Zhaokun2
刊名FRESENIUS ENVIRONMENTAL BULLETIN
出版日期2010
卷号19期号:10页码:2200-2204
关键词Phosphate Coagulation Polyaluminium Chloride (Pac) Red Mud Polydiallyldimethylammonium Chloride (Pdadmac)
ISSN号1018-4619
产权排序[Chen, Jing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Luan, Zhaokun] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China; [Chen, Jing] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
通讯作者Chen, J, Chinese Acad Sci, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Peoples R China
文献子类Article
英文摘要Phosphate removal by chemical precipitation remains the leading technology today. In this research, phosphate removal using polyaluminium chloride (PAC) alone and in the presence of polydiallyldimethylammonium chloride (PDADMAC) and red mud were investigated. The results showed that PAC was effective in phosphate removal by coagulation via charge neutralization and adsorption of polymeric hydroxyl complexes. For synthetic wastewater, the phosphate removal efficiency reached 94.6% and for raw wastewater, the total phosphorus removal efficiency was as high as 96.6%. PDADMAC was not efficient in removing phosphate when used alone, at dosages of 0.1-0.3 mg/L, and it had little effect on enhancing phosphate removal by PAC as a coagulation aid, even when the dosage of PDADMAC was increased from 0.1 mg/L to 2 mg/L. Red mud, a by-product of bauxite processing in the alumina manufacturing industry, served as "nuclei for coagulation" resulting in large, rapid-settling flocs. When 40 mg/L red mud was added, the phosphate removal efficiency of 3.18, 4.76 and 6.35 mg Al3+/L PAC increased by 15.1, 20.5 and 13.0%, respectively. Adsorption and desorption experiments of phosphate on flocs after coagulation showed that the addition of red mud not only decreased the required PAC dosage but also enforced the phosphate adsorption on flocs.; Phosphate removal by chemical precipitation remains the leading technology today. In this research, phosphate removal using polyaluminium chloride (PAC) alone and in the presence of polydiallyldimethylammonium chloride (PDADMAC) and red mud were investigated. The results showed that PAC was effective in phosphate removal by coagulation via charge neutralization and adsorption of polymeric hydroxyl complexes. For synthetic wastewater, the phosphate removal efficiency reached 94.6% and for raw wastewater, the total phosphorus removal efficiency was as high as 96.6%. PDADMAC was not efficient in removing phosphate when used alone, at dosages of 0.1-0.3 mg/L, and it had little effect on enhancing phosphate removal by PAC as a coagulation aid, even when the dosage of PDADMAC was increased from 0.1 mg/L to 2 mg/L. Red mud, a by-product of bauxite processing in the alumina manufacturing industry, served as "nuclei for coagulation" resulting in large, rapid-settling flocs. When 40 mg/L red mud was added, the phosphate removal efficiency of 3.18, 4.76 and 6.35 mg Al(3+)/L PAC increased by 15.1, 20.5 and 13.0%, respectively. Adsorption and desorption experiments of phosphate on flocs after coagulation showed that the addition of red mud not only decreased the required PAC dosage but also enforced the phosphate adsorption on flocs.
学科主题Environmental Sciences
URL标识查看原文
WOS关键词WASTE-WATER TREATMENT ; AQUEOUS-SOLUTION ; FLY-ASH ; PHOSPHORUS ; ADSORPTION ; CHLORIDE
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000284394200010
资助机构National High Technology Research and Development Program of China [2008AA06A409-3]; Foundation of the National Water Pollution Control [2009ZX07529-004]
公开日期2011-07-14
源URL[http://ir.yic.ac.cn/handle/133337/3786]  
专题烟台海岸带研究所_污染过程与控制实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jing,Luan, Zhaokun. ENHANCING PHOSPHATE REMOVAL BY COAGULATION USING POLYELECTROLYTES AND RED MUD[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2010,19(10):2200-2204.
APA Chen, Jing,&Luan, Zhaokun.(2010).ENHANCING PHOSPHATE REMOVAL BY COAGULATION USING POLYELECTROLYTES AND RED MUD.FRESENIUS ENVIRONMENTAL BULLETIN,19(10),2200-2204.
MLA Chen, Jing,et al."ENHANCING PHOSPHATE REMOVAL BY COAGULATION USING POLYELECTROLYTES AND RED MUD".FRESENIUS ENVIRONMENTAL BULLETIN 19.10(2010):2200-2204.

入库方式： OAI收割

来源：烟台海岸带研究所

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