The increase of activity in the food industries is often accompanied by higher emissions of wastewater. Due to Moroccan discharge standards a treatment is mandatory for direct or indirect discharge. This study evaluates the treatment performance of a sequential batch reactor (SBR) set up by a Moroccan food industry company (Naturex Morocco). The results obtained during the second year of operation of the system shows that the elimination rates reach 98% for COD, 99% for BOD5, 74% for TSS and 68% for total nitrogen. The effluent complies with Moroccan standards for indirect discharge. However, the treated water has some color substances (probably vegetable tannins) which would require additional treatment.
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