title: Growth of Tetraselmis suecica in a tubular photobioreactor on wastewater from a fish farm.
abstract: Wastewater from a fish farm was remediated in a continuously operated tubular photobioreactor in which Tetraselmis suecica was cultured. The N and P removal efficiencies and the productivity of T. suecica growing on the wastewater were determined. Possibilities to optimize the productivity by adding extra orthophosphate were investigated. At a biomass concentration of 0.5 g L(-1) on only wastewater, the N and P removal efficiencies were 49.4% and 99.0%, respectively. When extra phosphate was dosed to the wastewater, a 95.7% N removal efficiency and a 99.7% P removal efficiency could be reached at a biomass concentration of 1.0 g L(-1). This also resulted in significantly higher average net volumetric productivity ranging from 0.35 g L(-1) d(-1) at a biomass concentration of 0.5 g L(-1) to 0.46 and 0.52 g L(-1) d(-1) at biomass concentrations of 0.75 and 1.0 g L(-1), respectively. This study shows the feasibility of an integrated multi-trophic aquaculture approach where wastewater from the fish farms is used to produce feed for juvenile shellfish at high productivity and constant quality.
authors.affiliation: Bioprocess Engineering, AlgaePARC, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands; HZ University of Applied Sciences, P.O. Box 364, 4380 AJ Vlissingen, The Netherlands. Electronic address: michiel.michels@wur.nl.
authors.forename: Michiel H A
authors.initials: MH
authors.lastname: Michels
authors.affiliation: HZ University of Applied Sciences, P.O. Box 364, 4380 AJ Vlissingen, The Netherlands. Electronic address: mvaskos@hz.nl.
authors.forename: Mitra
authors.initials: M
authors.lastname: Vaskoska
authors.affiliation: Bioprocess Engineering, AlgaePARC, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands. Electronic address: marian.vermue@wur.nl.
authors.forename: Marian H
authors.initials: MH
authors.lastname: Vermuë
authors.affiliation: Bioprocess Engineering, AlgaePARC, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands. Electronic address: rene.wijffels@wur.nl.
authors.forename: René H
authors.initials: RH
authors.lastname: Wijffels
mesh_terms: D018533:Biomass; D000460:Chlorophyta / Q000254:growth & development* / Q000378:metabolism; D005398:Fisheries; D009584:Nitrogen / Q000737:chemistry* / Q000378:metabolism; D010710:Phosphates; D010758:Phosphorus / Q000737:chemistry* / Q000378:metabolism; D058433:Photobioreactors; D014865:Waste Disposal, Fluid / Q000379:methods; D062065:Wastewater / Q000737:chemistry* / Q000382:microbiology; D018508:Water Purification / Q000379:methods
chemical_list: D009584:Nitrogen; D010710:Phosphates; D010758:Phosphorus; D062065:Wastewater
keywords: Productivity; Removal efficiency; Tetraselmis suecica; Tubular photobioreactor; Wastewater