project name: reconstruction and expansion of shaying sewage plant in shengli oilfield, shandong province
project time: july 2004
the use of technology: primary sedimentation tank, two non-clogging aerated biological filter (baf)
technical advantages: power consumption reduced by 40%, drug consumption decreased by 30%, sludge production decreased by 60%, floor space reduced by 50%, the total residence time reduced to 6-8h, reducing investment costs, effluent quality to meet emission standards.
