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Electrocoagulation Process to Reduce Microplastic in Wonokromo Surface Water
Summary
Researchers tested electrocoagulation — a water treatment process using electrical current to remove contaminants — to reduce microplastics in surface water from Surabaya, Indonesia. The method successfully reduced microplastic levels in treated water samples. Improving water treatment to remove microplastics is important because surface water in Indonesia is used as a drinking water source for many people.
The abundance of microplastics in Surabaya's surface water can disrupt the sustainability of river ecosystems and harm humans because most of the raw water used by the people of Surabaya comes from surface water. Microplastics less than 5µm in size contain harmful chemicals such as Polychlorinated Biphenyls (PCBs) and are toxic. One alternative treatment is to reduce the levels of microplastics in the electrocoagulation process. Electrocoagulation is the process of clotting and deposition of fine particles in water using electrical energy. Microplastics contained in the water are removed through flocculation and deposition processes. This study aims to determine the effectiveness of the electrocoagulation process on reducing microplastic levels. The variables of this experiment are the distance of the electrodes (1.5 cm, 2 cm; 3 cm, and 5 cm), and the detention time (15 minutes, 25 minutes, 30 minutes, 45 minutes). This research was set up by using a reactor with a volume of 5 liters and a settling time of 30 minutes.