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  • Title: Treatment of saline wastewater in SBR aerobic granular reactors.
    Author: Figueroa M, Mosquera-Corral A, Campos JL, Méndez R.
    Journal: Water Sci Technol; 2008; 58(2):479-85. PubMed ID: 18701804.
    Abstract:
    Fish canning effluents characterized by their salt content, up to 30 g NaCl/L, were treated, previously diluted to desired concentration, in a SBR where aerobic granular sludge was produced. The formation of mature aerobic granules occurred after 75 days of operation with 3.4 mm of diameter, SVI of 30 mL/g VSS and density around 60 g VSS/L-granule. Treated organic loading rates were up to 1.72 kg COD/(m3.d) with fully organic matter depletion. Ammonia nitrogen was removed via nitrification-denitrification up to 40% when nitrogen loading rates were of 0.18 kg N/(m3.d). The presence of salt in the treated effluent did not cause a detrimental effect on the operation of the reactor once the aerobic granules were formed.
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