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Pornawati, Heni
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Astronomy Computer Science & IT Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Pengaruh Temperatur Aktivasi Karbon Aktif Terhadap Adsorpsi Logam Besi (Fe) Pada Limbah Batik Cair Batik Cual Pornawati, Heni; Aldila, Herman; Kurniawan, Widodo Budi
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4414

Abstract

Batik cual waste is a problem that is quite dangerous if it is disposed of directly into the environment because it contains various kinds of heavy metals such as iron Fe. To overcome the problem by utilizing coconut shell as activated carbon. In this study, the activated carbon used was the result of chemical activation and physical activation processes using temperatures of , and . Based on the SEM results to determine the sphericity value for a temperature of is worth 0.47 for is worth 0.56 and for is worth 0.52. The value of the pore diameter of activated carbon at temperatures of , and is 40.11µm, 81.84µm and 55.50µm. The BET results for activated carbon have a total pore volume for temperatures of , and with values of 0.182 cc/g, 0.2315 cc/g and 0.1605 cc/g. To decadarize cual batik wastewater through the adsorption process, temperatures of , and were used with contact times of 0, 40, 80, 120 and 160 minutes. The adsorption results were carried out by kinetic modeling using first-order, second-order and BMG kinetic models. Based on the model that is most suitable for the adsorption of liquid batik wastewater is BMG
Pembuatan Minyak Kelapa Murni (Virgin Coconut Oil) dengan Metode Fermentasi dan Optimasi Waktu Simpan dan Penjernihan Menggunakan Ekstrak Daun Lada dan Karbon Aktif Pornawati, Heni; Aldila, Herman; Aprilianti, Rena; Selviani, Dera
Jurnal Riset Fisika Indonesia Vol 3 No 2 (2023): Juni 2023
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v3i2.3555

Abstract

Coconut oil is a valuable part of the coconut fruit and is widely used as an industrial raw material or part of it is made into cooking oil. Oil extraction from coconut meat can be done in several ways. Extraction of coconut oil that is being developed at this time is the fermentation method using several enzymes or microbes, one of which can be used is yeast tempeh. This research aims to analyze the yield content and quality criteria of coconut oil made using the fermentation method and to analyze the effect of adding pepper leaf extract and activated carbon on the shelf life and clarification of coconut oil. From the results of experiments carried out in mixing tempeh yeast, the free fatty acid test, yield test, aroma test and density test were carried out. As for the test results, the determination of free fatty acids in this cooking oil study used the titration method with NaOH until the color changed to pink. For the redemption test, the highest oil concentration was 3 grams, while the tempeh yeast 4 grams and 5 grams decreased. Aroma test where in week 9 coconut oil without treatment experienced rancidity. This was caused by auto-oxidation which began to form radicals due to the presence of fat peroxidation factors. The density test is close to the SNI standard value, namely the lowest density of 0.9600 g/cm3 obtained from closed treatment with 0.5 ml of extract. This is because in this treatment very little cooking oil is contaminated with other substances.
Pengaruh Temperatur Aktivasi Karbon Aktif Terhadap Adsorpsi Logam Besi (Fe) Pada Limbah Batik Cair Batik Cual Pornawati, Heni; Aldila, Herman; Kurniawan, Widodo Budi
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4414

Abstract

Batik cual waste is a problem that is quite dangerous if it is disposed of directly into the environment because it contains various kinds of heavy metals such as iron Fe. To overcome the problem by utilizing coconut shell as activated carbon. In this study, the activated carbon used was the result of chemical activation and physical activation processes using temperatures of , and . Based on the SEM results to determine the sphericity value for a temperature of is worth 0.47 for is worth 0.56 and for is worth 0.52. The value of the pore diameter of activated carbon at temperatures of , and is 40.11µm, 81.84µm and 55.50µm. The BET results for activated carbon have a total pore volume for temperatures of , and with values of 0.182 cc/g, 0.2315 cc/g and 0.1605 cc/g. To decadarize cual batik wastewater through the adsorption process, temperatures of , and were used with contact times of 0, 40, 80, 120 and 160 minutes. The adsorption results were carried out by kinetic modeling using first-order, second-order and BMG kinetic models. Based on the model that is most suitable for the adsorption of liquid batik wastewater is BMG
Co-Authors Aprilianti, Rena Herman Aldila Selviani, Dera Widodo Budi Kurniawan