Identification and Removal of Microplastics in Well Water Around the Landfill Piyungan Yogyakarta with Activated Carbon
Abstract
The city of Yogyakarta produces an average of 270 tons of waste every day, which causes a buildup of waste at the communal waste landfill Piyungan. This causes microplastics to be absorbed into the soil and infiltrate water in the area around the landfill. Seeing this problem, researchers provided a solution to reduce microplastics in well water using the adsorption method, using activated carbon adsorbents. This research aims to identify microplastics in the water in dug wells around the landfill and reduce the microplastic content. The research used an adsorption method using activated carbon and carried out FTIR analysis tests to analyze the composition of polymers contained in microplastics in dug wells. The variables used in the research were the amount of activated carbon adsorbent and the length of contact time. The results obtained were in the form of microplastics in several forms such as fragments, filaments, fibers and films. The results of microplastic adsorption showed that the number of microplastics before adsorption was 17470 particles/L and after adsorption with a weight variation of 6% and a time of 60 minutes. Meanwhile, in FTIR analysis, the wavelength of the sample before adsorption with activated carbon was obtained with a peak wave point of 3325.5 cm.-1, 2128,3 cm-1, and 1636.3 cm-1 and wavelength after adsorption with activated carbon with a peak point of 3340.6 cm-1, 2107,8 cm-1, and 1637,2 cm-1 so it is estimated that the sample contains Polystyrene (PS), Polyethylene (PE), and Polyvinyl Chloride (PVC).
Keywords: adsorption, activated carbon, microplastics, well water, waste landfill
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