抄録
This outline introduces the use of a membrane for wastewater treatment that will help to reduce energy consumption as well as possibly generate energy. Membrane bioreactors (MBRs) are a superior method for easily providing high quality effluent; the obstacle, however, is that it requires tremendous energy during aeration. An energy-saving MBR with swing media can hold a large amount of microbes. In this system, the mixed liquor suspended solids (MLSS) of the reactor is low, and thus the viscosity of the aeration tank is also of a low value. Oxygen is, therefore, easily dissolved. The new MBR can reduce energy needed for aeration by approximately 30%. Current incineration facilities evaporate the process wastewater using high temperature effluent gas in order to prevent discharge of the wastewater; this process reduces the efficiency of power generation. We can, however, recover that electricity using an RO membrane system to reduce wastewater by more than 70%. Recently power generation systems using FO membranes have been proposed. However, the performance of FO membranes and draw solutions (DS) remain insufficient. We develop a high flux FO membrane and magnetic particle DS immobilized polyelectrolyte. It has been suggested that a high flux FO membrane and magnetic particle DS may produce approximately 0.3 kWh/m3 of electricity.
