June 1, 2019 Thesis Open Access

Hayelom Tesfay

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    "description": "<p>Textile wastewater treatment is one the most difficult environmental issues because it contains high color, high suspended solids, chemical oxygen demand (COD), pH, temperature, turbidity and toxic chemicals. The direct discharge of this wastewater without previous or proper treatment into the water bodies, like lakes, rivers, etc. pollutes the water affecting directly and indirectly the water. This indicated urgent need to develop cost effective and efficient treatment method. In this connection, coagulation is one of the most effective and simple to operate treatment methods to remove colloidal and suspended solid pollutants of textile wastewaters that technically need adding of either chemical or natural coagulant. However, use of chemical coagulants has been criticized to have some limitations. Consequently, recently there is an interest to replace chemical coagulants by natural materials. The overall objective of this study was to investigate the removal efficiencies of blended inorganic and natural coagulants namely alum and cactus mucilage. The evaluation of removal efficiency of the blended coagulants was done for color, COD, TSS, and TDS before and after treatment. The raw textile wastewater was collected from Arbaminch textile Investment group. The treatment process was carried out using a jar test at different coagulant dose, pH and mixing time values for constant other parameters.</p>", 
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    "title": "INVESTIGATION OF REMOVAL EFFICIENCY OF BLENDED CACTUS MUCILAGE AND ALUM COAGULANTS IN TEXTILE WASTEWATER TREATMENT", 
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