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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN)
Fithry, Dwi Anissa
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Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Variasi Ukuran Mesh dan Kecepatan Pengadukan Terhadap Kinerja Serat Fiber Kelapa Sawit Tanpa Aktivasi dalam Penurunan COD dan Perubahan pH Effluent POME dengan Tawas dan PAC Fithry, Dwi Anissa; Sitorus, Oby Vijay; Syafitri, Fadila
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55302

Abstract

Palm Oil Mill Effluent (POME) has very high COD (26,420 mg/L) and acidic pH (5.25), requiring a simple, economical, and sustainable polishing stage to approach environmental quality standards. This study investigates the effect of mesh size variation and stirring speed on the performance of unactivated oil palm fiber as a polishing medium for POME effluent with alum and PAC addition to reduce COD and modify pH. Laboratory-scale batch experiments used POME effluent from PKS Sei Pagar (COD 26,420 mg/L, pH 5.25), pyrolyzed oil palm fiber (yield 63.12%, moisture 4.88%) with mesh sizes 60 and 70, stirring at 50-100 rpm for 30 minutes, and alum/PAC solution (5 g/250 ml) at 4 ml/100 ml POME. The mesh 60 + alum 100 rpm combination achieved the highest COD reduction of 54.4% and relatively stable final pH.
Perbandingan Karbon Aktif Tandan Kosong Kelapa Sawit Tidak Teraktivasi dan Teraktivasi H2SO4 0,1m Terhadap Penururnan Cod dan Ph Air Rebusan Kelapa Sawit Melalui Proses Adsorpsi Bacth Fithry, Dwi Anissa; Sitorus, Oby Vijay; Amanda, Mesy Isni
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55303

Abstract

The palm oil industry produces liquid waste in the form of palm oil boiled water which has a high organic compound content, causing high Chemical Oxygen Demand (COD) values ​​and unstable pH. This study aims to compare the performance of activated and unactivated OPEFB activated carbon with 0.1 M H2SO4 in reducing COD values ​​and stabilizing the pH of palm oil boiled water through a batch adsorption process. The adsorption process is carried out in batches with variations in adsorbent mass, stirring speed, and certain contact time. Activated activated carbon is prepared using 0.1 M H2SO4 solution, while non-activated activated carbon is used without chemical treatment. The parameters analyzed include COD and pH values ​​before and after the adsorption process. The results of the study showed that 0.1 M H2SO4-activated EFB activated carbon had better adsorption capacity than non-activated activated carbon in reducing COD from palm oil boiled water and producing a pH closer to neutral.
Co-Authors Amanda, Mesy Isni Sitorus, Oby Vijay Syafitri, Fadila