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All Journal JOURNAL OF HEALTHCARE TECHNOLOGY AND MEDICINE Jurnal Kedokteran Anatomica (Anatomica Medical Journal) Proceeding - Sari Mutiara Indonesia International Conference on Health JURNAL FARMASIMED (JFM) JURNAL ANALIS LABORATORIUM MEDIK Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Farmanesia Jurnal Pengmas Kestra (JPK) Jurnal ABDIMAS MUTIARA Jurnal Indah Sains dan Klinis Jurnal Pengabdian Masyarakat Mandira Cendikia (JPKM-MC) Medistra Medical Journal (MMJ)
Dicky Yuswardi Wiratma
Teknik Laboratorium Medis, Fakultas Farmasi Dan Ilmu Kesehatan, Universitas Sari Mutiara Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Health Professions Immunology & microbiology Medicine & Pharmacology Neuroscience Nursing Public Health Social Sciences Other

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Journal : JURNAL FARMASIMED (JFM)

 1 
Purification of used Cooking Oil using a Combination of Activated Carbon and Bentonite Adsorbents Aritonang, Barita; Ritonga, Ahmad Hafizullah; Harefa, Karnirius; Wiratma, Dicky Yuswardi; Herlina
Jurnal FARMASIMED (JFM) Vol 7 No 1 (2024): Jurnal Farmasimed (JFM)
Publisher : Fakultas Farmasi Institut Kesehatan Medistra Lubuk Pakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35451/jfm.v7i1.2331

Abstract

The repeated use of cooking oil at high temperatures can significantly degrade its quality, as indicated by darkened color, unpleasant odor, elevated peroxide value (PV), and free fatty acid (FFA) levels. This deterioration can contribute to health risks such as obesity, high cholesterol, heart disease, and cancer. This study investigated the effectiveness of combined activated carbon and bentonite adsorbent in reducing peroxide value and free fatty acid levels in used cooking oil. The purification method involved an adsorption process using a combination of activated carbon derived from mangosteen peel waste and bentonite. The carbonization process was carried out at 600°C for 3 hours, followed by chemical activation with H?PO? at varying concentrations of 1M, 3M, and 5M. Bentonite was activated using 5M HCl. The results demonstrated that 5 grams of activated carbon from mangosteen peel, treated with 5M H?PO?, and bentonite activated with 5M HCl, were highly effective in lowering the peroxide value and free fatty acid levels in used cooking oil. Initially, the PV of the untreated used cooking oil was 16 meq O?/kg, reduced to 3.6 meq O?/kg after treatment with the combined adsorbents. Similarly, the FFA content decreased from 2.2% to 0.09%. Both peroxide value and free fatty acid levels met the standards set by SNI 3741:2013. In conclusion, using activated carbon and bentonite is an efficient method for purifying used cooking oil, as their strong adsorption capacity effectively reduces peroxide value and free fatty acid levels.
The Effect of a Combination of Activated Carbon and Bentonite on Reducing COD, BOD, and TSS Levels in Tofu Industry Wastewater Aritonang, Barita; Ritonga, Ahmad Hafizullah; Harefa, Karnirius; Dicky Yuswardi Wiratma; herlina, herlina
Jurnal FARMASIMED (JFM) Vol 8 No 1 (2025): Jurnal Farmasimed (JFM)
Publisher : Fakultas Farmasi Institut Kesehatan Medistra Lubuk Pakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35451/cbxjb379

Abstract

Wastewater produced from tofu manufacturing typically contains substantial amounts of organic substances and suspended particles. The concentrations of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), and Total Suspended Solids (TSS) frequently surpass the permissible thresholds established in the Regulation of the Minister of Environment and Forestry (Permen LHK) No. P.16 of 2019. Such high levels of pollutants may degrade water quality and pose risks to both aquatic ecosystems and public health in nearby areas. This study investigates the efficiency of combining activated carbon and bentonite, in both raw and activated forms, for reducing BOD, COD, and TSS concentrations in wastewater originating from tofu industries. The BOD test was performed using a five-day incubation at 24 °C, COD was analysed via the closed reflux method, and TSS was quantified using the gravimetric approach. Adsorbent characteristics were examined in accordance with the Indonesian National Standard (SNI), supported by functional group analysis using Fourier Transform Infrared (FT-IR) spectroscopy and morphological observation with Scanning Electron Microscopy (SEM). The results demonstrated that activation enhanced pore development and improved the adsorption capability of both materials. The combined activated carbon and bentonite effectively decreased BOD from 3,600 mg/L to 140 mg/L, COD from 1,500 mg/L to 185 mg/L, and TSS from 320 mg/L to 270 mg/L. All treated parameters met the regulatory quality standards, indicating that the activated mixture of these adsorbents provides an efficient and environmentally sound method for treating tofu processing wastewater.
Co-Authors Ahmad Hafizullah Ritonga Amaliah Insani Andre Prayoga Aritonang, Barita Budi Kurniawan Damanik, Elsarika Damanik, Rani Kawati Debi Meilani Denriso Purba Dimenta, Rivo Hasper Dyna Grace Romatua Aruan Eka Margareta Sinaga Elly Sitorus Erlan Aritonang Gunawan Harahap, Hasni Yaturramadhan Harefa, Karnerius Harianja, Ester Saripati Herlina Herlina H Hutajulu, Johansen Karnirius Harefa Kesaktian Manurung Mahyudi Manurung, Kesaktian Marpaung, Jhon Kenedi Marpaung, Jon Kenedy May Fransisca Telaumbanua Ningsih, Siska Dwi Nova Florentina Ambarwati Pardede, Jek Amidos Pranata, Chandra Purba, Denrison Purwandari, Vivi Santika, Rimma Siahaan, Maniur Arianto Sianipar, Artha Yuliana Simanjuntak, Yunida Turisna Sinarsi Meliala Siti Maimunah Siti Maimunah Siti Nurbaya Siti Nurbaya Sitorus, Elly Soraya Syaviera Supartiningsih - - Supartiningsih Supartiningsih Syahputra, Muhammad Budi Syarifuddin, Shofian Syaviera, Soraya Telaumbanua, May Fransisca Tiara Rajagukguk Yetrie B. C. Simarmata Yosy Cinthya Eriwaty Silalahi Yosy Cinthya Eriwaty Silalahi Yudhistira Yudhistira