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The use of high rate algal ponds for the treatment of marine effluent from a recirculating fish rearing system ArchiMer
Pagand, Pascal; Blancheton, Jean-paul; Lemoalle, J; Casellas, C.
A high rate algal pond (HRAP) system was used to treat effluent from a recirculating sea water aquaculture system in southern France. Dicentrarchus labrax L. were farmed at a high density, with effluents containing an average of 10 mg L-1 dissolved inorganic nitrogen (DIN) and 1.3 mg L-1 reactive phosphorus (RP). On a yearly basis, the algal pond removed 59% of the dissolved nitrogen and 56% of the phosphorus input, which was converted into 3.3 kg DW m(-2) algae. Green macroalgae were dominant throughout the year and the algal biomass mirrored the seasonal changes in daily irradiance and temperature. This first year study supports the possibility of treating marine aquaculture wastes using HPAPs, although conditions will have to be found to mitigate the...
Tipo: Text Palavras-chave: Nitrogen; Biofilters; Irradiance; Temperature; Photosynthesis; Growth; Culture; Chlorophyta; Nutrient Removal.
Ano: 2000 URL:
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