Chinese Acad Sci, State Key Lab Freshwater & Biotechnol, Inst Hydrol, Wuhan 430072, Peoples R China; Tsing Hua Univ, Dept Environ Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China
WOS标题词:
Science & Technology
; Life Sciences & Biomedicine
类目[WOS]:
Environmental Sciences
研究领域[WOS]:
Environmental Sciences & Ecology
摘要:
Micronutrients play an important role in biological processes for wastewater treatment. Many industrial wastewaters lack in nutrients required for microbial growth, and this is one of the problems at many activated sludge plants treating them. In this study, the effects of the micronutrient niacin on the COD removal rates of textile wastewater, together with the effect of Mixed Liquor Suspended Solids (MLSS) on niacin, were studied. Certain improvement effects were found on the removal rates of COD, when 0.5 similar to 2.0 mg/L niacin was added to the textile wastewater. The optimal concentration of niacin was 1.0 mg/L, which was continuously added during textile wastewater treatment, and removal rates were 1.31 times compared to those of the control system. The concentration of MLSS was probably one of the factors influencing treatment efficiency, and the biological performance of treatment system could be optimized through micronutrient niacin supplements.
英文摘要:
Micronutrients play an important role in biological processes for wastewater treatment. Many industrial wastewaters lack in nutrients required for microbial growth, and this is one of the problems at many activated sludge plants treating them. In this study, the effects of the micronutrient niacin on the COD removal rates of textile wastewater, together with the effect of Mixed Liquor Suspended Solids (MLSS) on niacin, were studied. Certain improvement effects were found on the removal rates of COD, when 0.5 similar to 2.0 mg/L niacin was added to the textile wastewater. The optimal concentration of niacin was 1.0 mg/L, which was continuously added during textile wastewater treatment, and removal rates were 1.31 times compared to those of the control system. The concentration of MLSS was probably one of the factors influencing treatment efficiency, and the biological performance of treatment system could be optimized through micronutrient niacin supplements.
1.Chinese Acad Sci, State Key Lab Freshwater & Biotechnol, Inst Hydrol, Wuhan 430072, Peoples R China 2.Tsing Hua Univ, Dept Environ Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China
Recommended Citation:
Liang Wei; Hu Hong-ying; Song Yu-dong; Wang Hui; Guo Yu-feng; Che Yu-ling.Micronutrient niacin addition to enhance biological treatment of textile wastewater,FRESENIUS ENVIRONMENTAL BULLETIN,2007,16(4):393-396
