期刊
WATER
卷 14, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/w14050749
关键词
Oreochromis sp; protein; lipids; carbohydrates; Scenedesmus; Chlorella; inland fisheries
资金
- Universidad Industrial de Santander (Colombia)
- Newton-Caldas Fund Institutional Links [527624805]
The capacity of wastewater from an inland fishery system in Colombia (Norte de Santander) as a culture medium for Chlorella sp. and Scenedesmus sp. was tested. The addition of appropriate amounts of nitrogen, phosphorus, and carbon source significantly increased the biomass of the algae.
In this work, the capacity of wastewater from an inland fishery system in Colombia (Norte de Santander) was tested as culture medium for Chlorella sp. and Scenedesmus sp. Due to insufficient N and P concentrations for successful algae growth, the effect of wastewater replenishment with NO3, PO4, and Na2CO3 or NaHCO3 as a carbon source was analyzed using a three-factor nonfactorial response surface design. The results showed that the addition of NaNO3 (0.125 g/L), K2HPO4 (0.075 g/L), KH2PO4 (0.75 g/L), and NaHCO3 (0.5 and 2 g/L for Chlorella sp. and Scenedesmus sp. respectively) significantly increased the biomass of Chlorella sp. (0.87 g/L) and Scenedesmus sp. (0.83 g/L). Although these results show that the addition of other nutrients is not necessary (Na, Mg, SO4, Ca, etc.), it is still essential to determine the quality of the biomass produced in terms of its application as a feed supplement for fish production.
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