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Characterization of an aquaculture effluent based on water quality and particle size distribution data
Luleå tekniska universitet.
1992 (English)In: Aquaculture '92: growing toward the 21st century; Marriott's Orlando World Center, Orlando, Florida, May 21 - 25, 1992; abstracts and schedule of events, 1992, 72- p.Conference paper (Other academic)
Abstract [en]

The distribution of total phosphorus and total nitrogen in an aquaculture effluent was determined. The effluent was serially filtered through 6 nylon filter meshes of gradually decreasing pore diameter, between 200 and 5 mu m. The total and particulate nitrogen and phosphorus; suspended solids; suspended particle number, diameter and volume distribution, in each of the fractions was determined. A progressive exponential decrease in total nitrogen concentration from approximately 0.70 to 0.45 mg/l indicated a range of reduction values to a maximum 34%. This reduction was confirmed to be due to the removal of nitrogen containing suspended particles. Total phosphorus concentrations decreased exponentially from approximately 110 to 44 mu g/l, indicating a range of reduction values to a maximum of 60%. Total nitrogen, but not total phosphorus, concentrations were shown to be greater in smaller particles. This did not influence the nutrient removal rate significantly. The data indicated the nutrient reduction rates which resulted from different screening efforts. Only the fraction containing particles smaller than 5 mu m diameter added a disproportionately high nutrient load to the effluent

Place, publisher, year, edition, pages
1992. 72- p.
Research subject
Urban Water Engineering
URN: urn:nbn:se:ltu:diva-40130Local ID: f202b8b0-1499-11de-ae64-000ea68e967bOAI: diva2:1013653
Aquaculture '92 : 21/05/1992 - 25/05/1992
Godkänd; 1992; 20090319 (andbra)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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