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All Journal Jurnal Rekayasa Hijau REACTOR : Journal of Research On Chemistry And Engineering
Erda Rahmilaila Desfitri
Universitas Bung Hatta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy

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Analisis dan Karakterisasi Potensi Pozzolan Sebagai Sumber Silika (SiO2) Untuk Meningkatkan Nilai Sumber Daya Lokal Erda Rahmilaila Desfitri; Reni Desmiarti; Munas Martynis; Suci Rahma Dhani
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 6, No 2 (2022)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v6i2.96-105

Abstract

ABSTRAKKabupaten Padang Pariaman memiliki sumber daya pozzolan yang belum termanfaatkan secara optimal. Pozzolan adalah bahan yang mengandung senyawa silika dan alumina. Untuk pemanfaatan yang optimal dilakukan analisis dan karakterisasi potensi pozzolan sebagai sumber silika. Silika bisa dimanfaatkan untuk bahan baku utama diberbagai industri, seperti industri gelas, keramik, katalis, pertanian dan untuk pengolahan limbah. Untuk mengetahui potensi pozzolan sebagai sumber silika dilakukan analisis kualitatif dan kuantitaif menggunakan XRD dan XRF. Berdasarkan hasil analisis pola difraksi sinar-X dengan measurement program PANalitycal ditemukan senyawa SiO2 yang tertinggi teramati pada posisi 2θ sebesar 20o dan 26o. Sedangkan analisis XRF dilakukan untuk mendapatkan informasi jumlah elemen dan oksida logam yang terkandung pada pozzolan. Hasil analisi XRF menunjukkan bahwa kadar SiO2 yang terdapat pada pozzolan adalah sejumalh 62,56%. Senyawa lain yang ditemukan pada pozzolan diantaranya Al2O3, SiO2, P2O5, K2O, CaO dan Fe2O3. Hasil penelitian menunjukkan bahwa pozzolan sangat berpotensi untuk dijadikan sumber silika.ABSTRACTPadang Pariaman regency has pozzolanic resources that have not been utilized optimally. Pozzolan is a material containing silica and alumina. For optimal utilization, analysis and characterization of the potential of pozzolan as a source of silica have been done. Silica can be used as a raw material in several industries, for example, glass, ceramic, catalyst industry, farm, and waste treatment. Qualitative and quantitative analyses by XRD and XRF were carried out to investigate pozzolan as a source of silica. Based on x-ray diffraction pattern with measurement of PANalitycal program was found SiO2 compound on 2θ position, 20o dan 26odegree. XRF analysis is used to get information chemical composition of pozzolan. XRF analysis found silica composition is 62,56%. Other compounds also found in pozzolans such as Al2O3, SiO2, P2O5, K2O, CaO, and Fe2O3. The result shows that pozzolan in Padang Pariaman Regency has the potential as a source of silica.
Desulfurisasi Batubara Dengan Metode Leaching Menggunakan Gel Lidah Buaya Alfia Wahyuni; Diva Amanda Tanjung; Iqbal Hapsauqi; Reni Desmiarti; Erda Rahmilaila Desfitri
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i2.136

Abstract

Coal is still the world's main energy source, widely used in power generation, steel production materials, cement industry, alumina processing plant paper factories and other chemical industries. Burning coal with high sulfur content produces sulfur dioxide gas (SO2), which can directly or indirectly disrupt the environment and contribute to air pollution and the formation of acid rain. Therefore, desulfurization has become an interesting research topic to improve coal quality. In this research, coal desulfurization is carried out using aloe vera gel as a solvent. 300 ml of aloe vera gel was contacted with 50 grams of coal using a magnetic stirrer with varying stirring speeds of 500 and 750 rpm, for duration 2, 3, 5 and 7 hours. Then, separated, dried, and analyzed for sulfur content, ash content, and calorific value. The results showed that the sulfur content decreased by 19.11% to 24.61%, the ash content decreased by 8.51% to 12.56%, and the calorific value was obtained respectively 6439cal/g, 6381 cal/g, 6433 cal/g, and 6467 cal/g.
Co-Authors Alfia Wahyuni Diva Amanda Tanjung Iqbal Hapsauqi Munas Martynis Reni Desmiarti Suci Rahma Dhani