Reuse of Sand Filter Backwash Waste water Treated by High Velocity Fiber Filter
High velocity fiber filter material filtration technology has characteristics of simple process transformation,small floor space,high filtration rate,etc.In this study,high velocity fiber filter material filtration technology was applied to the treatment process of sand filter backwash wastewater before reusing in water treatment plant(WTP).The treatment efficiency of high velocity fiber filter material fort influent and the possibility of reuse of filtered effluent were investigated.When the filtration velocity was controlled at 35 m/h,the experimental results showed that the high velocity fiber filter material had good adsorption and entrapment effect on suspended solids,organic matter,metal ions and microorganisms in water.During the test,the influent turbidity was unstable,but the filtered effluet turbidity was maintained below 2.0 NTU.It had a certain removal effect on water quality indices such as turbidity,CODMn,iron,aluminum,adenosine triphosphate(ATP).And the removal rates were 67.77％,23.69％,46.15％,42.63％and 49.00％,meeting the reuse standards.High-speed fiber filter can effectively remove most of the bacterial microorganisms in influent through physical filtration,which can effectively reduce the biological risk of reused water.
water treatment plant(WTP)sand filterbackwash wastewaterhigh velocity fiber filter packingwater reuse
万方数据
维普
