Research on the optimum backwashed cycle and the backwashed methods of the biological aerated filtrated reactor

The optimum backwashed cycle and the part backwashed methods of the Biological Aerated Filtra- ted Reactor were studied in the paper and the rules of the Biological Aerated Filtrated Reactor were discov- ered.The optimum backwashed cycle research showed that when instantaneous water production rate(v(t)) is equal to cycle water production rate(V(t)),is the optimum backwashed cycle.The part backwashed meth- ods decrease the water consumption and improve effluent quality.The optimum backwashed cycle and the part backwashed methods are quite important to achieve the automation operation control.