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Priyambada, Gunadi
Universitas Riau, Indonesia
Religion Humanities Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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Analisis Kelimpahan Mikroplastik pada Air Permukaan dan Biota di Sungai Air Hitam Kota Pekanbaru, Riau Darmayanti, Lita; Priyambada, Gunadi; Khairani , Ayu Dhea
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 7 No. 2 (2025): JPPL, September 2025
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/5cjs1812

Abstract

Microplastics are plastic particles with a size of 1 μm – 5 mm that are widely present in surface water and sediments. Increased exposure to microplastics in water can affect food chain cycles, leading to bioaccumulation and biomagnification in fish. This study aims to analyze the abundance, types, and polymer types of microplastics in surface water and fish in the Air Hitam River, Pekanbaru City, Riau. Air Hitam River is one of the tributaries of Siak River which has a length of ±8,5 km. Determination of sampling locations for each segment using purposive sampling method based on existing conditions along the river flow by identifying sources of microplastic pollution. The results showed that the average abundance of microplastics in the waters of Air Hitam River was 330±150,3 particles/L. The average abundance of microplastics in 8 Chitala lopis was 0,86±0,24 particles/gram for meat samples and 4,35±0,4 particles/gram for gill and digestive tract samples. The types of microplastics found in this study are fragments, fibers, films, and pellets. The results of the Pearson Product Moment correlation analysis showed that there was a significant relationship between aquatic environmental parameters (temperature, pH, and flow velocity) and the abundance of microplastics in the Air Hitam River with a sig value. (0,005 < α 0,05) for temperature parameter, sig. (0,215 > α 0,05) for the pH parameter, and sig. (0,248 > α 0,05) for the flow velocity parameter. The polymer types identified based on the Differential Scanning Calorimetry (DSC) test results are Polycarbonate (PC) and Polypropylene (PP).
CHARACTERISTICS OF AIRBORNE MICROPLASTIC POLYMERS USING PASSIVE SAMPLING AND THE INFLUENCE OF METEOROLOGICAL CONDITIONS Sasmita, Aryo; Priyambada, Gunadi; Ikhsandi, Ahmad
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 10 No. 2 (2026): Volume 10, Nomor 2, April 2026
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v10i2.48104

Abstract

Tenayan Industrial Estate has various anthropogenic activities, including industrial and population-related activities. Many activities can affect the levels of pollutants in the air, including microplastics. Microplastics can be transported through the air by meteorological factors. This research examined the abundance of microplastic particles in ambient air around the Tenayan Industrial Estate, focusing on the types and kinds of microplastic polymers. The air sampling method employed was passive sampling, conducted at three locations: upwind, downwind, and center, carried out every 7 days for 28 days. Microscopical method to determine the amount of abundance, the classification of microplastic polymer types and types. Differential Scanning Calorimetry (DSC) tests were conducted to determine the type of plastic. The research results show that the upwind point has an average weekly microplastic abundance of 64.00 ± 39.53 particles/liter. The central point is the average abundance of 69,5 ± 31,38 particles/liter. The downwind point has the highest average microplastic abundance of 81 ± 60,86 particles/liter. The dominant form of microplastics is fiber, accounting for 60,7%. The Microplastic polymer types identified are polyvinyl chloride, polycarbonate, and polyamide. The results showed that microplastic abundance was influenced by meteorological factors, specifically wind speed. Downwind locations, which are residential areas, have the highest microplastic abundance, indicating accumulation rather than directional transport.
Pengaruh Dosis Adsorben dan Waktu Kontak terhadap Penyisihan Zat Organik dan Warna pada Air Gambut Secara Adsorpsi Menggunakan Karbon Aktif dari Pelepah Kelapa Sawit (Elaeis Guineensis Jacq) Syarfi Syarfi; Dewi Fitria; Dedes Nawati; Gunadi Priyambada
Social Science Academic Vol. 4 No. 2 (2026)
Publisher : Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/ssa.10609

Abstract

The study aims to study the effect of adsorbent dose and contact time on the efficiency of organic matter and color removal in peat water by the adsorption method, and to calculate the adsorption capacity by oil palm frond adsorbent (Elaeis guineensis Jacq) and determine the adsorption isothermal appropriate to oil palm frond adsorbent (Elaeis guineensis Jacq) by varying the adsorbent dosage and contact time of 10, 15, 20, 25, 30, 35, and 40 g/L and 45, 60, 75 and 90 minutes, respectively. With a stirring speed of 120 rpm and a particle size of 100 mesh. The results showed that the highest efficiency of organic and color elimination was found at an adsorbent dose of 40 g/L with a contact time of 60 minutes of 98% and 93%, respectively. The adsorption capacity for organic substances was achieved at a dose of 10 g/L with a 90-minute contact time of 22.33 mg/g and the adsorption capacity for the color was achieved at a dose of 10 g/L with a 90-minute contact time of 46.5 mg/g. The isothermal equation of adsorption of the selected organic matter is the Freundlich isothermal and the selected color is the Langmuir isothermal with R2 values of 0.9906 and 0.8009 respectively.
Co-Authors Anggi Safriyana Arsy Dian Puspita Sari Aryo Sasmita David Andrio Dedes Nawati Dewi Fitria Dicky Maulana Elvi Yenie, Elvi Ikhsandi, Ahmad Ivnaini Andesgur Jecky Asmura Khairani , Ayu Dhea Khairegtah, Said M. Fitra Lita Darmayanti Muhammad Hasbu Nazar Muhammad Reza Muhammad Reza Muhammad Reza Nabila Noor Aliffia Rilian Gerry Sitompul Safriyana, Anggi Shinta Elystia Suharyanto Suharyanto Syarfi Syarfi Vayolla Syakirah Karil Vera Fitriani Widya Aryanti Widya Aryanti, Widya Witami, Witami Yohanes Yohanes