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Karakterisasi Kelarutan Silika dari Fly Ash Kelapa Sawit dalam Larutan Basa Kuat (NaOH) dan Asam Lemah (C6H8O7) Regna Tri Jayanti; Annisa Aulia Furqana Ramzi; Muhammad Hanif Alfitra
Equilibrium Journal of Chemical Engineering Vol 6, No 2 (2022): Volume 6, No 2 December 2022
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v6i2.67249


ABSTRAK. Pertumbuhan industri pabrik kelapa sawit masih cukup potensial di Indonesia. Kajian produk samping hasil produksi pabrik kelapa sawit ini masih belum diolah dengan optimal. Pemanfaatan fly ash sebagai salah satu produk samping masih sangat perlu dikembangkan. Silika merupakan komposisi penyusun fly ash pabrik kelapa sawit yang sangat diminati saat ini karena memiliki potensi aplikasi dalam berbagai tujuan seperti pengolahan limbah, material semikonduktor, dan bahan aditif pertanian. Penelitian pengolahan silika dari abu hasil proses pembakaran tidak terlepas dari metode ektraksi yang sangat bergantung dari karakteristik kelarutan silika terhadap pelarutnya. Penelitian ini bertujuan untuk memberikan informasi karakteritik kelarutan silika yang berasal dari fly ash pabrik kelapa sawit dalam larutan berupa basa kuat (NaOH) dan asam lemah (C6H8O7). Aktivitas kelarutan silika dalam pelarut asam dan basa dilakukan dengan memvariasikan konsentrasi pelarut yaitu 1 M, 2 M, dan 3 M. Proses pelarutan silika dilakukan pada temperatur 60oC dalam waktu 60 menit. Karaketrisasi fly ash dilakukan dengan menggunakan instrumen XRD, XRF, dan SEM yang menunjukkan bahwa senyawa penyusun utama fly ash adalah CaO 68,894% dan SiO2 19,189 % yang terkandung dalam mineral kalsit, portlandite, dan kuarsa dengan morfologi yang heterogen serta ukuran partikel berkisar 200 μm – 300 μm. Hasil pelarutan menunjukkan bahwa kelarutan silika tertinggi diperoleh dalam pelarut asam sitrat 2 M yaitu sebesar 26,35 %. ABSTRACT. The growth of the palm oil mill industry still has quite potential in Indonesia, but the study of by-products produced by palm oil mills is immobile and not managed optimally. The use of fly ash as one of the by-products urgently necessities to be developed. Silica is a constituent composition of palm oil fly ash that is in great demand today because it has potential applications in various purposes such as sewage treatment, semiconductor materials, and agricultural additives. Research on silica processing from ash from the combustion process is inseparable from the extraction method which is highly dependent on the characteristics of silica solubility to the solvent. This study aims to provide information on the characteristics of silica solubility derived from palm oil mill fly ash in a solution in the form of strong bases (NaOH) and weak acids (C6H8O7). The solubility activity of silica in acidic and alkaline solvents is carried out by varying the solvent concentration of 1 M, 2 M, and 3 M. Silica dissolution process is carried out at a temperature of 60oC within 60 minutes. Fly ash characterization was carried out using XRD, XRF, and SEM instruments which showed that the main constituent compounds of fly ash were CaO 68.894% and SiO2 19.189% contained in calcite, portlandite, and quartz minerals with heterogeneous morphology with particle size between 200 μm – 300 μm. The dissolution results showed that the highest silica solubility was obtained in a 2 M citric acid solvent, which was 26.35%.
Pelatihan Pembuatan Lilin Aromaterapi Berbasis Minyak Serai di IKM CV Amna Lab. Aromaterapi Kabupaten Solok Elda Pelita; Hazil Anwar; Regna Tri Jayanti; Desniorita Desniorita; Rita Youfa; Jerry Jerry; Roswita Roswita
Journal of Industrial Community Empowerment Vol 1, No 2 (2022): Published in October 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.083 KB)


CV. Amna Lab Aromaterapi Small and Medium Enterprises have started the citronella oil business in 2018. Some of its products such as soap, aromatherapy spray, propolis, and body oil have arrived in several big cities in Indonesia. However, since the Covid-19 pandemic, these SMEs have experienced difficulties, especially regarding the large capital costs and the price of citronella which has fallen drastically to 100% of the original price. Under these conditions, SMEs are constrained in the process of increasing productivity and lack production technology as well as marketing and management. The Community Service Team of the ATI Padang Polytechnic offers solutions to overcome these problems by providing alternative processing of citronella oil-based products to be aromatherapy candles and educating the SMEs on the product marketing strategies through e-commerce applications. The community service team tried resolving the delinquent by determining the amount of citronella oil that should be included and the composition variations of stearic acid, vegetable oil, and paraffin. The variations were tested in order to find the right comparison in making aromatherapy candles based on citronella oil. The team also searched and studied several references to analyze marketing strategies in accordance with SMEs CV. Amana Aromatherapy Lab. Considering the result of the experiments, it was identified that 1% of citronella oil could be added to the wax mixture while the exact composition of oil and paraffin was 1: 2. The stearic acid was unsuitable to applied since the candle product easily melted. E-commerce marketing strategies were used by utilizing advertisements on internet searches to expand the promotions.
Ekstraksi Silika dari Fly Ash Pabrik Kelapa Sawit Menggunakan Variasi Pelarut Karbonat Regna Tri Jayanti; Jerry; Miftahurrahmah
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.9850


The selection of a catalyst is imperative in extracting silica. Calcium is a heterogeneous base catalyst that is abundant in carbonate rocks. This study attempts to extract silica using an artificial carbonate solvent with variations of strong acid HCl (1 M, 3 M, 5 M), NaCl salt (1: 2, 1: 4) w/w ratio to distilled water, and H2O (1: 4) w/w ratio to carbonate. Characteristics of fly ash were analyzed using XRF and XRD to determine the elemental composition, crystal structure, and dominant constituent compounds. The solvent concentration and pH effect in extracting silica from fly ash is reviewed by setting the temperature parameter at 60 C, 120 minutes extraction time, and the ratio between fly ash and carbonate solvent 20 % w/v. The filtrate was verified using UV-Vis to determine the concentration of dissolved silica (SiO2) in the carbonate solvent. The examination results showed that the carbonate solvent with 3 M HCl was able to extract silica better than the other five solvents at 68.17 ppm.