POROUS POLYMERIC BIOSUPPORTS AND THEIR USE IN THE BIOTREATMENT OF AQUEOUS WASTE STREAMS

摘要

A composition for the biotreatment of an aqueous waste stream comprising microorganisms colonized within the pores of a porous biosupport, said biosupport comprising: (a) 40-100 wt.% of a polymeric material comprising a polymer selected from the group consisting of nylon, thermoplastic polyester, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, polysulfone, polyolefin, polyvinyl chloride, polycarbonate, polyimide, polyetheretherketone. polyphenylene sulfide, cellulose ester plastics, polyvinyl butyral, styrenic polymers, rigid, thermoplastic polyurethanes, and mixtures thereof; (b) 0- 60 wt.% of a fiber reinforcement; (c) 0 - 60 wt.% of an adsorbent material; and (d) 0 - 40 wt. % of an inorganic filler, wherein the sum of the amounts of fiber reinforcement, adsorbent material and inorganic filler in said biosupport is 0 - 60 wt. %, and wherein said biosupport has a specific gravity greater than the specific gravity of water and pores of sufficient diameter to enable microorganisms to colonize within the pores. 2017 ז' באלול התשס" א - August 26, 2001