title: Biodegradation of amine waste generated from post-combustion CO(2) capture in a moving bed biofilm treatment system.
abstract: Nitrogen and organic matter removal from reclaimer waste of a monoethanolamine (MEA) based CO(2)-capture plant was demonstrated in a pre-denitrification biofilm system. The reclaimer waste was generated from a 30 % (w/w) MEA solvent used for capturing CO(2) from flue gas from a coal-fired power plant. MEA, N-(2-hydroxylethyl)glycine (HEGly) and 2-hydroxyethylformamide (HEF) were the major contaminants treated. Hydrolysis of MEA to ammonia and further oxidation of organic intermediates readily occurred in the pre-denitrification system with a hydraulic retention time of 7 h. The biofilm system achieved 98 ± 1 % removal of MEA and 72 ± 16 % removal of total nitrogen. This is the first demonstration of efficient biodegradation of real amine waste from a post-combustion CO(2) capture facility by pre-denitrification without external electron donor.
authors.affiliation: Department of Biotechnology, Norwegian University of Science and Technology, Trondheim, Norway. ingrid.hauser@ntnu.no
authors.forename: Ingrid
authors.initials: I
authors.lastname: Hauser
authors.forename: Aslak
authors.initials: A
authors.lastname: Einbu
authors.forename: Kjetill
authors.initials: K
authors.lastname: Østgaard
authors.forename: Hallvard F
authors.initials: HF
authors.lastname: Svendsen
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Cervantes
mesh_terms: D000588:Amines / Q000378:metabolism*; D000641:Ammonia / Q000378:metabolism; D018441:Biofilms / Q000254:growth & development*; D007220:Industrial Waste; D009584:Nitrogen / Q000378:metabolism; D010084:Oxidation-Reduction; D062065:Wastewater / Q000382:microbiology*
chemical_list: D000588:Amines; D000641:Ammonia; D007220:Industrial Waste; D009584:Nitrogen; D062065:Wastewater