This study investigates the re-use of briny wastewater from the mustard leaf pickling process in fish culture. Three brine water samples, including pickling water, water extracted from waste mustard blades, and water extracted from waste mustard stems, were collected and diluted with seawater. Dilution ratios of 10(3)-10(4) were sufficient to adjust the characteristics of the three water samples so that they were similar to marine aquaculture environments. Juvenile tilapia fish, Oreochromis mossambicus, were raised in the diluted and aerated water samples for 1month. The results indicated that tilapia cultured in the three diluted water samples exhibited similar average weight gains (13-16%) and specific growth rates (0.66-0.74%d(-1)) compared to a control sample raised in seawater only. This indicates that briny wastewater from the pickling process of mustard leaves can be used for marine fish culture instead of being treated as an industrial wastewater.
關聯:
Desalination and Water Treatment, v.52 n.4-6, pp.1062-1069
