Conference proceeding
Reducing phosphorus discharge from flow-through aquaculture. III: assessing high-rate filtration media for effluent solids and phosphorus removal
Aquacultural engineering, Vol.32(1), pp.161-170
2003 AES issues forum
2004
Handle:
https://hdl.handle.net/2376/117251
Abstract
Two types of unique high-rate filtration media, reticulate foam media of four porosities and Fuzzy filter® (FF) media (Schreiber Technologies, Trussville, AL, USA), were tested during bench top and field tests for potential application in flow-through (FT) mechanical filtration processes to reduce solid phase phosphorus (P) discharge. Bench top test screening was used to select medias for field testing based on the following criteria: (1) capable of particle size capture down to 100 μm; (2) capable of hydraulic loading ≥2037 Lpm/m2 [50 gpm/ft2]; (3) initial clean bed head loss ≤ ∼152 mm. Bench top results showed average particle size capture of 217, 161, 118, 69, and 51 μm for the four porosities of reticulated foam tested and the FF media, respectively. Fuzzy filter® media was the only media that was unable to sustain the 2037 Lpm/m2 hydraulic loading; therefore FF media was tested at a hydraulic loading of 1605 Lpm/m2. The FF media was also the only media that which exhibited any measurable head loss during the 1 h bench top tests, i.e. 17 cm water. Based on these results the 30 ppi reticulated foam was selected for a 16 h field test to measure particle size capture, head loss, and the effect on solids and P discharge from commercial FT raceway effluent. The results indicated particle size capture of less than 100 μm, a cumulative head loss of 150 mm, and a 29% reduction in suspended solids and solid phase phosphorus discharge (11% total phosphorus discharge reduction) from the filtered effluent. The results support that the 30 ppi reticulated foam is a suitable media for development in a high-rate filtration process for solids and phosphorus discharge reductions from FT raceway effluent.
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Details
- Title
- Reducing phosphorus discharge from flow-through aquaculture. III: assessing high-rate filtration media for effluent solids and phosphorus removal
- Creators
- Brit TRUE - Biological Systems Engineering, Washington State University, PO Box 646120, Pullman, WA 99164, United StatesWilliam JOHNSON - Biological Systems Engineering, Washington State University, PO Box 646120, Pullman, WA 99164, United StatesSHULIN CHEN - Biological Systems Engineering, Washington State University, PO Box 646120, Pullman, WA 99164, United States
- Publication Details
- Aquacultural engineering, Vol.32(1), pp.161-170
- Conference
- 2003 AES issues forum
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- Elsevier Science
- Grant note
- Aquacultural Engineering Society (AES)
- Identifiers
- 99900583059101842
- Language
- English
- Resource Type
- Conference proceeding