The use of ceramic membranes as submersible modules in membrane bioreactors

Summary

The results of laboratory testing the use of flat and tubular ceramic membranes as submersible modules in membrane bioreactors are presented. The studies were carried out with the use of flat ceramic membranes manufactured by ItN Nanovation German company and tubular membranes from Russian University of Chemical Engineering named after D. I. Mendeleyev. It was established that for the use in activated sludge media membranes with 200 nm pore size can be recommended; however, the transmembrane pressure shall be higher than –0.3 bar.

Key words

wastewater treatment , membrane bioreactor , submersible module , ceramic membrane

Electroplating industry wastewater treatment: advanced solutions

Summary

An innovative technology of electroplating industry wastewater treatment on the basis of electroflotation and ultrafiltration combination has been developed. From technical and economic point of view this technology provides for removing heavy metals from wastewater to 0.01 mg/l, SS and oil products to 0.05 mg/l at relatively low wastewater treatment facilities operational expenditures. The electroflotation plant and unltrafiltration unit on the basis of tubular ceramic membranes are recommended for introduction at the industrial wastewater treatment facilities that are either subject to upgrade or under construction. The main task of the technology and equipment designers is the reduction of the treatment facilities construction and operation expenses while maintaining the high quality of treatment.

Key words

wastewater treatment , ultrafiltration , heavy metals , ceramic membrane , electroflotation