title: [Pathways of degradation of organic components of waste water of (meth)acrylate-producing factories to methane by communities of microorganisms of adapted and unadapted sludge].
abstract: Pathways of the degradation of the main compounds of (meth)acrylate-producing factories wastewater (methyl methacrylate, methyl and butyl acrylate, acrylate and methacrylate, acetone, isopropanol, butanol and methanol) by the anaerobic microbial consortium of mesophilic unadapted granulated sludge from the "UASB" reactor and of adapted activated sludge from the contact reactor were comparatively studied. It was shown that the degradation of fatty acids and alcohols took place in both types of sludge. Methacrylate, acrylate and acetone degradation occurred only in adapted sludge. Both types of sludge were characterized by the reversible conversion of acetone and isopropanol and by the presence of the isomeric transition of butyrate and isobutyrate too. The present results allow to suggest that the adaptation of activated sludge to substrate includes the accumulation of biomass of microorganisms capable of hydrolyze specific substrates into such general intermediates as low-molecular-weight fatty acid and alcohols further metabolized to methane and carbon dioxide.
authors: N B
authors: NB
authors: Shtarkman
authors: K S
authors: KS
authors: Laurinavichius
mesh_terms: D000179:Acrylates / Q000378:metabolism*; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D002617:Chemical Industry; D004463:Ecology; D007220:Industrial Waste; D008689:Methacrylates / Q000378:metabolism*; D008697:Methane / Q000378:metabolism*
chemical_list: D000179:Acrylates; D007220:Industrial Waste; D008689:Methacrylates; D008697:Methane
vernacular_title: Puti degradatsii organicheskikh komponentov stochnykh vod (met)akrilatnykh proizvodstv do metana soobshchestvom mikroorganizmov adaptirovannogo i neadaptirovannogo ila]