MEMSIFT - Technology Overview

Galvanizing industries, electroplating industries, semiconductor industries, metal processing industries, chemical industries, pharmaceutical industries, oil & gas industries and many other industries generate high saline wastewater. The recycling rate in these industries are < 20%. Conventional treatment processes (chemical and biological) does not remove salinity. Reverse osmosis is the well-known technology to treat saline wastewater however; it is limited with salt concentration in the feed water due to osmotic strength. Moreover, it is always a challenge to treat/dispose the RO rejection/brine/high strength wastewater. Disposing the rejection back to the sea / sewer is another environmental issue that needs to be addressed. Conventional distillation and evaporation methods are too expensive. Inexpensive, environmental friendly technologies are critical for brine treatment and zero liquid discharge (ZLD).

Memsift Innovations Pte Ltd has an innovative thermal membrane process based ZLD system that can be used to treat the above industrial wastewater at almost 5 times less energy compared to current incineration method. The novel ZLD system consist of a unique highly hydrophobic hollow fiber membrane, which enhance the efficiency of the system. The technology has been proved for brine treatment to reach ZLD and recover the valuable resources from the industrial wastewater.