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All Journal Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Jurnal Riset Fisika Indonesia
Deden Nurdandi
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Astronomy Computer Science & IT Earth & Planetary Sciences Education Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health

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Sosialisasi dan Pendesaianan Sistem Elektrokoagulasi Bertenaga Surya dalam Pengolahan Limbah Batik Cual Sandi Sandi; Andrian Saputra; Deden Nurdandi; Muhammad B Hariyono; Redi Randika; Yuant Tiandho
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 3 No 1 (2021): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v3i1.64

Abstract

Perkembangan sektor pariwisata di Kep. Bangka Belitung diikuti oleh peningkatan permintaan produk budaya seperti batik cual. Meskipun dapat meningkatkan perekonomian, namun industri ini berpotensi menghasilkan limbah cair yang dapat mencemari lingkungan. Pada kegiatan pengabdian kepada masyarakat ini dilakukan sosialisasi dan pendesainan alat teknologi elektrokoagulasi bertenaga surya dalam pengolahan limbah batik cual. Agar dapat berjalan dengan baik maka kegiatan ini terdiri dari beberapa tahapan seperti koordinasi, pendesaian peralatan, evaluasi desain peralatan, finalisasi desain, kegiatan sosialisasi dan evaluasi kegiatan. Melalui koordinasi awal dengan mitra diperoleh informasi terkait produksi dan karakteristik limbah sebagai dasar pembuatan desain alat. Setelah dilakukan evaluasi diperoleh desain final alat untuk dipaparkan pada kegiatan sosialisasi. Kegiatan sosialisasi dihadiri oleh pemilik Kelompok Usaha Batik Melayu Pinang Sirih dan perwakilan dari Dinas Lingkungan Hidup Provinsi Kep. Bangka Belitung. Berdasarkan evaluasi yang dilakukan diketahui bahwa mitra dan perwakilan DLH Babel mengapresiasi desain yang diberikan.
Analisis Hubungan antara Kemurnian Madu dengan Sifat Fisisnya Yuant Tiandho; Evi J; Deden Nurdandi; Fenni Vavionita; Eri Gusnia; Umi Awaliyah
Jurnal Riset Fisika Indonesia Vol 1 No 2 (2021): Juni 2021
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.78 KB) | DOI: 10.33019/jrfi.v1i2.2010

Abstract

Public awareness of the benefits of honey has increased the amount of honey consumption. This encourages the circulation of impure honey in the market by irresponsible traders. Therefore, characteristic information of honey is needed as a basis for honey purity testing methods. Physical characteristics analyzed in this study are the refractive index, permittivity, density and color quantization of honey. In general, it can be seen that the higher the concentration of honey, the higher the refractive index and its density and inversely proportional to the permittivity. Color analysis also shows that concentration is inversely proportional to the color intensity level.
Synthesis And Characterization Of Carbon-Chitosan Composite Electrodes Based On Biomass Carbon Activated Using The Microwave Method Deden Nurdandi; Herman Aldila; Widodo Budi Kurniawan
Jurnal Riset Fisika Indonesia Vol 2 No 2 (2022): Juni 2022
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.264 KB) | DOI: 10.33019/jrfi.v2i2.3216

Abstract

In this research, the synthesis and characterization of chitosan modified carbon composites based on biomass carbon has been carried out using the microwave method. Chemically activated carbon with 2.5% H3PO4 activator was stirred using a magnetic stirrer for 1 hour and allowed to stand for 24 hours. The carbon was then physically reactivated using a microwave for 20 minutes with a power variation of 800, 1000 and 1200 watts and a Scanning Electron Microscopy (SEM) test was carried out. After the SEM test, chitosan modified carbon was synthesized with a composition ratio of 1:1, 2:1 and 3:1 and the specific capacitance was measured using Galvanostatic Charge-Discharge (GCD) testing. The SEM test results analyzed using ImageJ software-based image processing methods show that the value of sphericity, pore size and carbon porosity decreases with increasing microwave power used. The optimum conditions based on the value of Sphericity, pore size and porosity were obtained at a variation of 800 watts of microwave power with values ​​of 0.952, 0.832 m, and 25.87%, respectively, which were included in the macropore size (>50 nm). Because the higher the power used, the smaller the pore area and porosity. The electrode-specific capacitance values ​​were 3.4 x 10-1 F/g, 24.02 F/g, and 1.3 x 10-1 F/g, respectively. Electrodes with a ratio of 2:1 have the largest capacitance value, because they can be charged by an electric charge. The longer the charge-discharge process, the greater the capacitance value, so the curve will approach a more symmetrical isosceles triangle shape.
Co-Authors Andrian Saputra Eri Gusnia Evi J Fenni Vavionita Herman Aldila Muhammad B Hariyono Redi Randika Sandi Sandi Umi Awaliyah Widodo Budi Kurniawan Yuant Tiandho