Textile wastewater is well known as one of the wastewaters to be most difficultly treated. The effects of macin on textile wastewater treatment efficiency were studied by continuous addition of 1.0 mg (.) L-1 macin, the physical and chemical indexes of the water samples, such as COD, ammonia and dehydrogenase activities, were analyzed every day with standard methods. and obvious improvement in wastewater treatment performance was achieved. The exact results showed that: (1) Niacin could improve the COD removal efficiency signifcantly with removal rates being 1.31 times as to those of the control system; (2) under this experimental condition. addition of macin had almost no effect on the removal of ammonia: (3) Addition of macin could improve the activity of dehydrogenase by 130%. It proved that the biological treatment performance of textile wastewater treatment system probably could be optimized through micronutrient niacin supplement.
Liang Wei (liangwei02@tsinghua.org.cn) ; Hu Hongying; Gu Xin; Che Yuling; Wang Hui; Guo Yufeng; Song Yudong.Effects of micronutrient niacin on treatment efficiency of textile wastewater,Wuhan University Journal of Natural Sciences,2006,11(3):737-741
