title: Effect of low dosages of powdered activated carbon on membrane bioreactor performance.
abstract: Previous research has demonstrated that powdered activated carbon (PAC), when applied at very low dosages and long SRTs, reduces membrane fouling in membrane bioreactors (MBRs). This effect was related to the formation of stronger sludge flocs, which are less sensitive to shear. In this contribution the long-term effect of PAC addition was studied by running two parallel MBRs on sewage. To one of these, PAC was dosed and a lower fouling tendency of the sludge was verified, with a 70% longer sustainable filtration time. Low PAC dosages showed additional advantages with regard to oxygen transfer and dewaterability, which may provide savings on operational costs.
authors.affiliation: Sub-department of Environmental Technology, Wageningen University,Wageningen, The Netherlands. maxremy@gmail.com
authors.forename: Maxime
authors.initials: M
authors.lastname: Remy
authors.forename: Hardy
authors.initials: H
authors.lastname: Temmink
authors.forename: Wim
authors.initials: W
authors.lastname: Rulkens
mesh_terms: D057219:Biofouling; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors / Q000592:standards*; D002606:Charcoal / Q000737:chemistry*; D008567:Membranes, Artificial; D009930:Organic Chemicals / Q000302:isolation & purification; D010865:Pilot Projects; D011108:Polymers / Q000302:isolation & purification; D011134:Polysaccharides / Q000032:analysis; D011208:Powders; D011506:Proteins / Q000032:analysis; D012722:Sewage / Q000737:chemistry; D014783:Viscosity; D014874:Water Pollutants, Chemical / Q000302:isolation & purification
chemical_list: D008567:Membranes, Artificial; D009930:Organic Chemicals; D011108:Polymers; D011134:Polysaccharides; D011208:Powders; D011506:Proteins; D012722:Sewage; D014874:Water Pollutants, Chemical; D002606:Charcoal