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All Journal Reaktor Seminar Nasional Teknik Kimia Kejuangan Jurnal Rekayasa Hijau Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat INAQUE: Journal of Industrial & Quality Engineering Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Teknologi Lingkungan Lahan Basah Envirotek : Jurnal Ilmiah Teknik Lingkungan
Wivina Diah Ivontianti, Wivina Diah
Jurusan Teknik Kimia Fakultas Teknik Universitas Tanjungpura Pontianak
Religion Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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The Effect of Variation of Palm Fronds Absorbent Concentration In Adsorption Process to Reduce Free Fatty Acid Content on Tengkawang Oil Puspita, Filda Agum; Oktaviani, Eva Pramuni; Rakasiwi, Rinjani Ratih; Ivontianti, Wivina Diah
Reaktor Volume 23 No.3 December 2023
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.23.3.92-100

Abstract

Tengkawang oil that hasn’t through purification process contains free fatty acid that can affect its quality, where this essence is the polluter that must be removed because it can caused a rancid. The removal of free fatty acid content on Tengkawang oil was done through adsorption process utilizing palm fronds adsorbent by using its cellulose content. Palm fronds went through dilegnification process using 10% of NaOH, then adsorption process was conducted with adsorbent concentration variety 5, 10, 15, 20 and 25%. Adsorbent characterized by utilizing FTIR and SAA, from FTIR result shows that palm fronds contain berlignocellulose function cluster, after delignification the C=C lignin compound function cluster still can be found on FTIR result and after adsorption O-H cluster went through intensity decrement which shows that cellulose content and hydroxyl (-OH) cluster reacted with adsorbat. Furthermore, there’s absorption on C-H function cluster that indicates the existence of free fatty acid compound and other polluter that adsorbed by palm fronds adsorbent. The characteristic of palm fronds adsorbent after delignification process was conducted shows the pore size is on micropore range with surface area of 6.480 m2/g, pore volume of 0.01138 cc/g and pore radius of 12.4 Å. The result of the research shows decreasing percentage of free fatty acid, capacity value and adsorption effectiveness of Tengkawang oil that the highest is on adsorbent concentration as much as 25% with decreasing percentage of free fatty acid as much as 4.68%, adsorption capacity as much as 207.19 mg/g and adsorption effectiveness as much as 36.28%. Keywords: adsorption; delignification; free fatty acid; tengkawang oil
Peat Water Treatment Using Modified Red mud Ivontianti, Wivina Diah; Shalindry, Riysan Octy; Maleiva, Lalak Tarbiyatun Nasyin
Reaktor Volume 24 No.1 April 2024
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.24.1.15-21

Abstract

Red mud is an alumina refinery waste residue that has been used to develop an effective adsorbent for wastewater treatment, one of which can be applied to peat water. Peat water treatment is carried out using the adsorption method. This study sought to ascertain the impact of the acid types of acid HCl and H2SO4 solution on dealumination process to the characteristics of the red mud adsorbent based on the analysis of XRF and BET instruments. In addition, this study was to determine the effect of the effect of mass variations of the red mud adsorbent on the effectiveness of peat water treatment. This research was conducted on a laboratory scale using variations in the adsorbent mass of 1 g; 3 g ; 5 g and 7 g and variation of contact time used was 15, 30, 60, and 90 minutes . The results showed an increase in the Si/Al ratio from 1.064% to 1.697% for HCl, while for H2SO41.565%.  Increasing of surface area with HCl was 179.574% while using H2SO4 was 162.891%. The results of research on the adsorption process with variations in the mass of the adsorbent 1, 3, 5, and 7 grams obtained the results of peat water pH respectively were 6.6; 7.0; 7.0; and 7,1. In the Fe metal there were removal of 73.39%; 37.09%; 24.19% and -141.93%. Then for the organic matter removal efficiency were 53.07%; 50%; 44.30% and -17.98% respectively. In variation of contact time for the parameter Fe, there were removals of 29,03%, 27,41%, and 24,19% respectively. Then for organic matter the removal efficiencies were 32,46%, 54,82%, 48,25%, and 44,29%. The optimum condition based on the result obtained are the 5 g for the mass adsorbent and 30 minute for contact time. Keywords: adsorbent; dealumination; H2SO4; HCl; peat water; red mud.
Co-Authors Aslami Khairullah Aulia, Penny Dwi Asniawati Eddy Kurniawan Elly Sri Rezeki Eva Pramuni Oktaviani Sitanggang Eva Pramuni Oktaviani Sitanggang Eva Pramuni Oktaviani Sitanggang Eva Pramuni Oktaviani Sitanggang Pramuni Oktaviani Sitanggang Eva Sitanggang Febri Prima GITA SURYANI LUBIS Japri, Bryan Anthony Lalak Tarbiyatun Nasyin Maleiva MUHAMMAD IVANTO Nurfa Kholiza Oktaviani, Eva Pramuni Puspita, Filda Agum Rakasiwi, Rinjani Ria Devitasari Rinjani Rakasiwi Shalindry, Riysan Octy Sintanggang, Eva Pramuni Oktaviani Siti Syamsiah Sri Rezeki Syahrul Khairi Syaifurrahman Syaifurrahman Wiratni Budhijanto Yusup Yusup Zainal Abidin