CHILLICOTHE — In recent years the wastewater ... treatment to aerobic treatment and the change from creating wet sludge ...

The most energy-efficient solution must be based on actual conditions that, in reality, will vary over an extended period of time. Noack elaborates, “The economical operation of a wastewater treatment ...

The National Sanitation Utility (ONAS) intends using part of the proceeds of loans from the European Bank for Reconstruction and Development (EBRD) and the African Development Bank (AfDB) towards the ...