Condition Optimization of Dissolved Air Flotation-Filter and Mechanism Research
DAFF’s treatment effect on Yellow River reservoir water under different reflux ratios is studied in this paper. Determination of indicators are turbidity、CODMn、NH4+-N、UV254、particle counter and unconventional indicators, such as biomass、TOC、olfactory threshold and smell of factors. The best reflux ratio is 14%; The average value of NH4+-N、CODMn 、UV254、and turbidity of carbon-sand filter’s outlet is 0.125、1.61mg/L、0.033cm-1 and 0.21NTU, accordingly, the average removal rates are 58.64 %、40.44 %、27.96 % and 90.26 %; The micro-organisms in filter material are mainly existed in the upper layer of activated carbon filter; The micro-organisms provide carbon-sand filter beneficial conditions for its biological degradation effect.
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
Y. Li et al., "Condition Optimization of Dissolved Air Flotation-Filter and Mechanism Research", Advanced Materials Research, Vols. 374-377, pp. 975-981, 2012