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Optimalisasi Pemanfaatan Abu Ampas Tebu Untuk Pembuatan Paving Block Muharja, Maktum; Helgananta Adirya Sabian; Mutiara Rengganis Nurul Putri Azhari
Journal of Biobased Chemicals Vol. 3 No. 2 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i2.440

Abstract

Salah satu industri gula memproduksi abu ampas tebu dalam jumlah yang banyak. Abu ampas tebu pada industri gula tersebut belum dapat dimanfaatkan. Abu ampas tebu memiliki kandungan silika yang cukup tinggi yakni sebesar 68,5% dapat dimanfaatkan sebagai bahan pengganti untuk mengurangi penggunaan semen pada pembuatan paving block. Pada penelitian ini pembuatan batu bata beton menggunakan metode pressing manual. Paving block terbuat dari pasir, semen, abu ampas tebu, abu batu dan air. Perbandingan semen, abu batu dan pasir menggunakan perbandingan 1:2:6 dengan variasi abu ampas tebu 10, 20 dan 30%. Hasil pengujian didapatkan batu bata beton mutu tertinggi pada pengeringan hari ke-7 dengan 214 kg/cm2 mendapatkan mutu B berdasarkan SNI 03-0691-1996 dan kuat tekan batu bata beton yang dihasilkan akan semakin meningkat seiring bertambahnya waktu pengeringan. Inovasi ini dapat meningkatkan kegunaan pada abu ampas tebu dan menjadi peluang bisnis baru untuk industri gula.
Application of Appropriate Technology Purification Oil Based on Cocoa Bark (Theobroma cacao L.) As Bio-Adsorbent for Purification of Used Cooking Oil in Kedaton Plantation, Panti Village Hakiki, Rizki Maulana; Tiana Febrianti Eka Prasetyani; Rossi Agnessi Pebriana; Amelia Permata Ayunda; Syeikh Maulana Bima Suci; Amellyah Isna Ainaiyah; Mutiara Rengganis Nurul Putri Azhari; Isni Salma Salsabillah; Sekar Jasmin Azzahra; Nico Dimas Saputro; Istiqomah Rahmawati
Jurnal Inovasi Sains dan Teknologi untuk Masyarakat Vol. 2 No. 2 (2024): November
Publisher : Faculty of Mathematics and Natural Sciences, University of Jember. Jl. Kalimantan No.37, Krajan Timur, Jemberlor, Kec. Sumbersari, Jember Regency, East Java 68121

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/instem.v2i2.1158

Abstract

Using cooking oil repeatedly will have an impact on health. Cooking oil repeatedly changes color to a darker color, produces an unpleasant odor, and has high levels of fatty acids. Cooking oil experiences changes due to the chemical properties of cooking oil, such as a reaction where the color changes to brown when cooking oil is used at high temperatures by reacting with air. Therefore, it is necessary to purify used cooking oil to be used as a material that is more beneficial to society. The utilization of cocoa shell waste into carbon that has been processed is used for the adsorption process of purification of used cooking oil. The process of purifying used cooking oil begins with making activated charcoal, chemical activation of activated charcoal with hydrochloric acid (HCl), assembling appropriate technology for oil purification, adsorption process of used cooking oil which goes through several stages of purification, namely zeolite stone, cotton, cocoa charcoal, cotton and filter cloth. , and the process of using purified used cooking oil into aromatherapy candles. The materials used in making candles are paraffin and used cooking oil in a 1:1 ratio. Candles are packaged attractively to provide consumers and add selling value. This activity attracted the enthusiasm of the community to utilize used cooking oil into aroma therapy candles. In addition, the Panti Village Tourism Awareness Group is interested in utilizing used cooking oil to make souvenir aroma therapy candles at Panti village tourist attractions.It is hoped that using used cooking oil that has been purified into aromatherapy candles will become a source of income for the people of Kedaton Plantation, reducing waste disposal so that the environment will be better protected.