Abstract
Hotels used a considerable amount of water and chemicals for guest rooms, pools, landscaping, laundry, gardening, and other activities, depending on hotel categories. In this research, the liquid waste of the hotel was treated by a combination of mixing and electrocoagulation process to produce clean water, which was safely discharged into the environment. The EC reactor was equipped with 6 (six) Al electrodes as baffles with a current strength of 12 Aand operated in a continuous process. The agitation rate of turbine impeller was fixed at 100 rpm, while the influent flow rate into the EC reactor was maintained at 200 mL/min. The influences of differences in electrode configurations (i.e., 3 Anodes 3 Cathodes and 4 Anodes 2 Cathodes) on pH, turbidity, and BOD of the effluent were studied. Based on the experimental results, the Al electrode configuration of 4 Anodes 2 Cathodes showed better results than 3 Anodes 3 Cathodes. The decrease in BOD and turbidity were 84% and 93%, respectively. This technology can be considered as a promising green technologyto treat various industrial wastewater as well as reduce the raw water pollution by the industrial waste.
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