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Color is one of the main problems in wastewater and many techniques can be applied to remove it. In this work, nanofiltration, coagulation–flocculation and their combination were studied to remove color from five reactive dyes. Nanofiltration was carried out using an energy saving nanofiltration membrane in a 0.5L pilot plant at 10bar. Coagulation–flocculation experiments were performed in a jar test...
Moringa oleifera seeds, an environmental friendly and natural coagulant are reported for the pretreatment of palm oil mill effluent (POME). In coagulation–flocculation process, the M. oleifera seeds after oil extraction (MOAE) are an effective coagulant with the removal of 95% suspended solids and 52.2% reduction in the chemical oxygen demand (COD). The combination of MOAE with flocculant (NALCO 7751),...
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