| analysis of a microbial community oxidizing inorganic sulfide and mercaptans. | successful treatment of refinery spent-sulfidic caustic (which results from the addition of sodium hydroxide solutions to petroleum refinery waste streams) was achieved in a bioreactor containing an enrichment culture immobilized in organic polymer beads with embedded powdered activated carbon (bio-sep). the aerobic enrichment culture had previously been selected using a gas mixture of hydrogen sulfide and methyl mercaptan (mesh) as the sole carbon and energy sources. the starting cultures for t ... | 2001 | 11485441 |