Application Research Of Reusing Industrial Wastewater As Boiler Feed-water Make-up

Wastewater reusing is a means to solve water scarcity and pollution. Based on analysis of the existing water system about one power plant's wastewater treatment project, a scheme employing MF or UF membrane system to reuse industrial wastewater as boiler feed-water make-up is put forward and it's technology and economic feasibility is studied. Subsequently, the results of several MF/UF companies'pilot study are investigated. The MF or UF treatment system is proved feasible. According to the anlysis and compare of the operating stability, yielding water quality and operating costs between these companies, the CMF-S is selected. Furthermore, the effect of feed water quality, membrane material and operation condition on MF performance is discussed, the control of membrane'fouling is studied and system optimize is realized as a result. Finally, a CMF-S system that can produce 610m~3/h water is designed.