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Effects of micronutrients on biological treatment efficiency of textile wastewater
Liang, Wei1,2; Hu, Hong-ying2; Wang, Hui2; Gu, Yu-feng2; Song, Yu-dong2; Che, Yu-ling2; Liang, W, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2007
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume16Issue:12APages:1578-1582
AbstractMicronutrients play a very important role in biological processes for wastewater treatment. Many industrial wastewaters lack in nutrients (macronutrients and micronutrients) required for microbial growth, and this is one of the main problems at many activated sludge plants treating industrial wastewater. The microbial community structure is one of the important factors controlling the pollutant-degrading capacity of biological wastewater treatment system. In this study, the concentrations of micronutrients of the textile wastewater discharged from a textile plant were determined, and the effects of micronutrients on treatment efficiency and microorganism community structure of the biological treatment system were studied. The results showed that the optimal concentrations of magnesium, molybdenum, zinc, thiamine and niacin in the textile wastewater were 5.0, 2.0, 1.0, 1.0 and 1.0mg/L, respectively. The COD removal rates when magnesium, molybdenum, zinc, thiamine and niacin were added individually to the wastewater in their optimal concentrations were 1.8, 1.4, 1.3, 1.6 and 2.2 times of that of the control, respectively. The improving effects of combinations of zinc and thiamine, zinc and niacin, thiamine and niacin were better than single micronutrient. The diversity of quinones (DQ) changed significantly after the micronutrient was added into the wastewater treatment system. This indicated that there was probably a feasibility of optimizing the biological treatment performances and microorganism community structure of textile wastewater treatment system through micronutrient supplement.; Micronutrients play a very important role in biological processes for wastewater treatment. Many industrial wastewaters lack in nutrients (macronutrients and micronutrients) required for microbial growth, and this is one of the main problems at many activated sludge plants treating industrial wastewater. The microbial community structure is one of the important factors controlling the pollutant-degrading capacity of biological wastewater treatment system. In this study, the concentrations of micronutrients of the textile wastewater discharged from a textile plant were determined, and the effects of micronutrients on treatment efficiency and microorganism community structure of the biological treatment system were studied. The results showed that the optimal concentrations of magnesium, molybdenum, zinc, thiamine and niacin in the textile wastewater were 5.0, 2.0, 1.0, 1.0 and 1.0mg/L, respectively. The COD removal rates when magnesium, molybdenum, zinc, thiamine and niacin were added individually to the wastewater in their optimal concentrations were 1.8, 1.4, 1.3, 1.6 and 2.2 times of that of the control, respectively. The improving effects of combinations of zinc and thiamine, zinc and niacin, thiamine and niacin were better than single micronutrient. The diversity of quinones (DQ) changed significantly after the micronutrient was added into the wastewater treatment system. This indicated that there was probably a feasibility of optimizing the biological treatment performances and microorganism community structure of textile wastewater treatment system through micronutrient supplement.
SubtypeArticle
KeywordTextile Wastewater Micronutrients Cod Removal Rates Microbial Community Structure
Department[Liang, Wei] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Liang, Wei; Hu, Hong-ying; Wang, Hui; Gu, Yu-feng; Song, Yu-dong; Che, Yu-ling] Tsing Hua Univ, Dept Environm Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China
Subject AreaEnvironmental Sciences
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000252144100007
WOS KeywordACTIVATED-SLUDGE ; NICKEL(II) ; QUINONES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8310
Collection期刊论文
Corresponding AuthorLiang, W, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Tsing Hua Univ, Dept Environm Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Liang, Wei,Hu, Hong-ying,Wang, Hui,et al. Effects of micronutrients on biological treatment efficiency of textile wastewater[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2007,16(12A):1578-1582.
APA Liang, Wei.,Hu, Hong-ying.,Wang, Hui.,Gu, Yu-feng.,Song, Yu-dong.,...&Liang, W, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2007).Effects of micronutrients on biological treatment efficiency of textile wastewater.FRESENIUS ENVIRONMENTAL BULLETIN,16(12A),1578-1582.
MLA Liang, Wei,et al."Effects of micronutrients on biological treatment efficiency of textile wastewater".FRESENIUS ENVIRONMENTAL BULLETIN 16.12A(2007):1578-1582.
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