Development of microfiltration membranes of biodegradable biomass plastics with the aid of surfactants and their application to depth filtration

T. Tanaka*, H. Minbu, A. Ochiai, M. Taniguchi, Niigata University, Japan

In the near future filter media should also be environmentally benign to achieve Sustainable Development Goals (SDGs). We have been developing microfiltration membranes of biodegradable biomass plastics by using thermally and/or nonsolvent-induced phase separation methods [J. Membr. Sci. 238 (2004) 65; Desalin. Water. Treat. 17 (2010) 176; J. Membr. Sci. 396 (2012) 101; J. Membr. Sci. 479 (2015) 85]. The biodegradable membranes are compostable after filtration to reduce the industrial wastes, and the use of biomass plastics will reduce that of the fossil resources.

In this paper we showed the development of microfiltration membranes of poly(L-lactic acid) (PLLA), one of the major biodegradable biomass plastics, with the aid of surfactants. The membranes were applied to depth filtration to avoid the formation of dense filter cake...

Session: M6 - Short Oral Presentations
Day: 23 October 2019
Time: 14:45 - 16:00 h

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