Anaerobic Membrane Bioreactor followed by Annamox process and reverse osmosis filtration: a unique configuration to meet stringent effluent requirements in the food industry
Anaerobic membrane reactor (AnMBR) was combined for the first time with an Annamox process and a reverse osmosis (RO) unit in order to recover resources from Mars industrial effluent of a chocolate confectionery and pet food production in Poland.The combination of these processes allows to produce reuse water for the factory while the RO brine is discharged to the river with part of the aerobic membrane reactor (MBR) effluent.The AnMBR is treating 550 m3.d-1 at around 12,600 mg COD.L-1 on average since January 2015.The reactor treated the full COD load within two months and the operation was always very stable with 99.3% COD removal on average,a permeate COD of 83 mg.L-1 and a VFA concentration always below 2.3 meq.L-1.The UF cross-flow membranes mounted in parallel configuration allow to operate at an average flux of 25 L.m-2.h-1 while maintaining the transmembrane pressure (TMP) around 0.10 bar.The Annamox process uses specific carriers on which bacteria agglomerate in order to perform autotrophic removal of nitrogen directly on the AnMBR permeate.On average,the ammonium concentration is decreased from 182 to 39 mg N.L-1,achieving 79% nitrogen removal without addition of any external carbon source.
Anaerobic Membrane Bioreactor Biogas Flux Anammox Reverse Osmosis Full-scale
M.M.J.Baudry S.Pacheco-Ruiz J.van der Lubbe T.Amaud
Biothane, Veolia Water Technologies, Tanthofdreef 21, 2623 EW Delft, The Netherlands
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
511-514
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）