Abstract
The Enlarged Shuaiba Industrial Area of Kuwait contains the largest concentration of industries in Kuwait. The wastewaters from this area are, in the main, discharged into the Arabian Gulf after some pretreatment. In an effort to alleviate the pollution of the Gulf, laboratory-scale biological treatability studies were undertaken. A composite industrial wastewater representing the effluents from oil refineries and petrochemical plants, and domestic wastewater were treated by activated sludge and “Captor” reactor systems. Effective nitrification was observed in both systems. At the scale studied (5 1), however, the activated sludge system was found to be superior in performance. The poorer performance of the “Captor” system can probably be attributed to an accumulation of oil that inhibited the activity of the microorganisms within the sponges.
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