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Characterization of Microplastics at Grey Water Wastewater Treatment Plant in South Jakarta City

Jurnal Impresi Indonesia 2025 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 43 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Panca Hadi Arief Setiawan, Panca Hadi Arief Setiawan, Mochamad Adhiraga Pratama Mochamad Adhiraga Pratama Kintan Akila Naurelia, Kintan Akila Naurelia, Sandyanto Adityosulindro, Sandyanto Adityosulindro, Mochamad Adhiraga Pratama Mochamad Adhiraga Pratama Nopa Dwi Maulidiany, Mochamad Adhiraga Pratama

Summary

Researchers examined microplastic contamination at a greywater treatment plant in South Jakarta using Moving Bed Biofilm Reactor technology, finding concentrations as high as 942 particles per liter entering the system — and a 69% removal efficiency. Five shapes, multiple colors, and several polymer types were identified, including unusual materials like polyvinyl formal and silicone. The study highlights that even urban greywater treatment systems are microplastic hotspots, and that current technology removes only about two-thirds of incoming particles.

Study Type Environmental

Microplastics (MPs) are <5 mm synthetic polymer particles that are emerging contaminants and have been found widely in various water bodies. Wastewater treatment plants (WWTPs) play an important role in containing the release of MPs into the environment, but studies on the effectiveness of greywater-based WWTP, especially in dense urban areas such as Jakarta, are still limited. This research was conducted on a greywater WWTP with Moving Bed Biofilm Reactor (MBBR) technology in South Jakarta to analyze the abundance, efficiency of dispensation, and characteristics of microplastics based on shape, color, size, and material. Samples were taken from five points on weekdays and holidays, analyzed using NOAA methods and FTIR spectroscopy. The abundance of MPs at the inlet reached 942 particles/L (weekdays) and 675 particles/L (holidays), while at the outlet there were 290 particles/L and 211 particles/L, resulting in a dispensing efficiency of 69%. Five types of MPs (foam, fragment, fiber, film, microbead) were found with color variations (white-transparent, yellow, red, blue, green, black), as well as the content of PVFM, PVB, PVA, silicone, and POM polymers. This study contributes to the understanding of the distribution and character of MPs in greywater treatment systems that are still rarely explored, as well as supporting the development of mitigation strategies based on WWTP technology

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