Pilot-scale treatment of waste-water from carbon production by a combined physical-chemical process | |
Wang, Hongjie; Liu, Ruiping; Qu, Jiuhui; Fan, Maohong; Li, Huaizheng | |
刊名 | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2009-07 | |
卷号 | 84期号:7页码:966-971 |
关键词 | waste-water carbon production (WCP) aluminium smelting lime precipitation coagulation Fenton oxidation decolouration fluoride removal |
中文摘要 | BACKGROUND: Due to its strong colour, high concentrations of fluorides and chemical oxygen demand (COD(Cr)) and large amount of suspended solids (SS), the waste-water from carbon production (WCP) seriously affects the stability of the circulating system of Guizhou Branch, Aluminium Corporation of China. In this paper, the performance of a pilot-scale (24 m(3) d(-1)) combined treatment plant, consisting of chemical precipitation, coagulation, and Fenton oxidation, for the treatment of WCP was investigated. RESULTS: Lime precipitation and hydrated ferrous sulphate (HFS) coagulation, with polyacrylamide (PAM) as a coagulation aid, proved to be effective in the removal of colour (>70%), suspended solids (SS) (>90%) and fluoride (>80%) from the WCP. Subsequent Fenton oxidation combined with coagulation as a final treatment efficiently removed SS, F(-), COD(Cr), dissolved organic carbon (DOC) and colour. The average total removal efficiencies of these parameters in the pilot-scale combined technology were as follows: SS = 98.8%, F(-) = 95.7%, COD(Cr) = 94.8%, DOC = 91.8% and colour = 98.3%, giving an average effluent quality: colour 24 (multiple), COD(Cr) 168 mg L(-1), DOC 80 mg L(-1), F(-) 38 mg L(-1) and SS 44 mg L(-1), consistent with the reusable water limits for the process. CONCLUSIONS: The current experimental results and the economic evaluation suggest that the combined process could be advantageous and feasible for the treatment of WCP. (C) 2009 Society of Chemical Industry |
WOS记录号 | WOS:000267607000006 |
内容类型 | 期刊论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/21718] ![]() |
专题 | 生态环境研究中心_环境水质学国家重点实验室 |
推荐引用方式 GB/T 7714 | Wang, Hongjie,Liu, Ruiping,Qu, Jiuhui,et al. Pilot-scale treatment of waste-water from carbon production by a combined physical-chemical process[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2009,84(7):966-971. |
APA | Wang, Hongjie,Liu, Ruiping,Qu, Jiuhui,Fan, Maohong,&Li, Huaizheng.(2009).Pilot-scale treatment of waste-water from carbon production by a combined physical-chemical process.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,84(7),966-971. |
MLA | Wang, Hongjie,et al."Pilot-scale treatment of waste-water from carbon production by a combined physical-chemical process".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 84.7(2009):966-971. |
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