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Polishing Treatment of Molasses Wastewater with Iron Salts: the Role of Counter-ions
Liang, Zhen1,2; Wang, Yanxin1; Zhou, Yu1; Liu, Hui1; Wu, Zhenbin2; Liang, Z, China Univ Geosci, MOE Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2009-11-01
Source PublicationWATER ENVIRONMENT RESEARCH
ISSN1061-4303
Volume81Issue:11Pages:2293-2298
AbstractThe effect of counter-ions on the coagulation of biologically treated molasses wastewater using iron-based coagulants was investigated. Parameters such as removals of chemical oxygen demand (COD) and color, and residual turbidity, were measured to evaluate coagulation performance. Experimental results showed that ferric chloride and ferric nitrate were more effective than ferric sulfate at optimal dosages, achieving 89 to 90% and 98 to 99% of COD and color removals, respectively, with residual turbidity of less than 5 NTU. High-performance size exclusion chromatography (HPSEC) results revealed differences in the removal of the molecular weight fraction of organic compounds using iron salts. Scanning electron microscopy (SEM) showed randomly formed coagulated flocs characterized with irregular, sheet-like shapes. Nitrate and chloride counter-ions had similar effects on coagulation performance compared to sulfate. Both FeCl3 and Fe(NO3)(3) yielded better results than Fe(SO4)(2) under underdosed and optimum dosage conditions. Coagulation efficiency was less adversely affected in the overdosed regions, however, if sulfate rather than chloride or nitrate was present. Water Environ. Res., 81, 2293 (2009).; The effect of counter-ions on the coagulation of biologically treated molasses wastewater using iron-based coagulants was investigated. Parameters such as removals of chemical oxygen demand (COD) and color, and residual turbidity, were measured to evaluate coagulation performance. Experimental results showed that ferric chloride and ferric nitrate were more effective than ferric sulfate at optimal dosages, achieving 89 to 90% and 98 to 99% of COD and color removals, respectively, with residual turbidity of less than 5 NTU. High-performance size exclusion chromatography (HPSEC) results revealed differences in the removal of the molecular weight fraction of organic compounds using iron salts. Scanning electron microscopy (SEM) showed randomly formed coagulated flocs characterized with irregular, sheet-like shapes. Nitrate and chloride counter-ions had similar effects on coagulation performance compared to sulfate. Both FeCl(3) and Fe(NO(3))(3) yielded better results than Fe(SO(4))(2) under underdosed and optimum dosage conditions. Coagulation efficiency was less adversely affected in the overdosed regions, however, if sulfate rather than chloride or nitrate was present. Water Environ. Res., 81, 2293 (2009).
SubtypeArticle
KeywordMolasses Effluent Coagulation Iron-based Coagulants Counter-ions High-performance Size Exclusion Chromatography Scanning Electron Microscopy
Department[Liang, Zhen; Wang, Yanxin; Zhou, Yu; Liu, Hui] China Univ Geosci, MOE Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China; [Liang, Zhen; Wu, Zhenbin] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaEngineering ; Environmental ; Environmental Sciences ; Limnology ; Water Resources
DOI10.2175/106143009X447975
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS SubjectEngineering, Environmental ; Environmental Sciences ; Limnology ; Water Resources
WOS IDWOS:000271149300001
WOS KeywordALUMINUM(III) SOLUTIONS ; COEXISTING ANIONS ; DRINKING-WATER ; SULFATE ION ; COAGULATION ; REMOVAL ; DECOLORIZATION ; PRECIPITATION ; DECOLOURIZATION ; EFFLUENT
Funding OrganizationNational Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China ; National Natural Science Foundation of China [40830748]; China Postdoctoral Science Foundation [20080440976]; Ministry of Environmental Protection of China
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7526
Collection期刊论文
Corresponding AuthorLiang, Z, China Univ Geosci, MOE Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
Affiliation1.China Univ Geosci, MOE Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Liang, Zhen,Wang, Yanxin,Zhou, Yu,et al. Polishing Treatment of Molasses Wastewater with Iron Salts: the Role of Counter-ions[J]. WATER ENVIRONMENT RESEARCH,2009,81(11):2293-2298.
APA Liang, Zhen,Wang, Yanxin,Zhou, Yu,Liu, Hui,Wu, Zhenbin,&Liang, Z, China Univ Geosci, MOE Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China.(2009).Polishing Treatment of Molasses Wastewater with Iron Salts: the Role of Counter-ions.WATER ENVIRONMENT RESEARCH,81(11),2293-2298.
MLA Liang, Zhen,et al."Polishing Treatment of Molasses Wastewater with Iron Salts: the Role of Counter-ions".WATER ENVIRONMENT RESEARCH 81.11(2009):2293-2298.
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