| 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 Publication | FRESENIUS ENVIRONMENTAL BULLETIN
 |
| ISSN | 1018-4619 |
| Volume | 16Issue:12APages:1578-1582 |
| Abstract | 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.; 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. |
| Subtype | Article |
| Keyword | Textile 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 Area | Environmental Sciences |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000252144100007 |
| WOS Keyword | ACTIVATED-SLUDGE ; NICKEL(II) ; QUINONES |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/152342/8310 |
| Collection | 期刊论文 |
| Corresponding Author | Liang, W, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| Affiliation | 1.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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