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All Journal Indonesian Journal of Chemistry Jurnal Berdaya Mandiri JURNAL REKAYASA KIMIA & LINGKUNGAN Analit: Analytical And Environmental Chemistry
Febriasari, Arifina
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PENDAMPINGAN DESA BERKELANJUTAN PENGOLAHAN SAMPAH ORGANIK MENJADI KOMPOS DI DESA DALUNG KECAMATAN CIPOCOK KOTA SERANG Arlofa, Nina Arlofa; Febriasari, Arifina
Jurnal Berdaya Mandiri Vol. 5 No. 3 (2023): JURNAL BERDAYA MANDIRI (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v5i3.4198

Abstract

The waste produced in the city of Serang reaches 360 tons/day, while the waste that can be transported by the Environmental Service (DLH) in the town of Serang to the Final Disposal Site (TPA) is only around 70-80 tons/day. In general, waste management in the community is by burning, throwing it into the river, or collecting it in trash cans to be then taken by the garbage officer and disposed of at the TPA. The same thing also happened in Dalung village, the waste generated from community activities was burned or collected into trash bins to be then taken by officers to be disposed of in the waste landfill. Burning waste causes pollution, and waste disposal in landfill causes degradation of cleanliness and environmental quality due to methane gas which causes global warming, where the gas has a destructive power 23 times stronger than carbon and other gases such as SO2 gas which causes odor. Organic waste can be processed into liquid fertilizer, compost, or methane gas. The implementation of community activities aims to increase public knowledge about the importance of waste management, layout arrangements, and the manufacture of organic and inorganic waste bins as well as training in composting. keywords: fermentation, compost, organic, rubbish
Innovative High-Speed Homogenizer Approach for Synthesizing PVDF-GO Membranes from Recycled Battery Graphite Febriasari, Arifina; Ferdiansyah, Ferry; Salsabila, Shafa Marwa; Ridwan, Muhammad; Mahardika, Muhammad Bagas Adhistya; Hilyati, Hilyati; Sudjarwo, Wisnu Arfian Anditya; Arlofa, Nina; Supriyadi, Supriyadi; Toca-Herrera, Jose Luis; Kartohardjono, Sutrasno
Indonesian Journal of Chemistry Vol 25, No 5 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.103909

Abstract

Effective waste management is essential for achieving a zero-waste environment, particularly in handling hazardous domestic waste like used dry cell batteries. This study explores a sustainable approach by recovering graphite from battery waste to synthesize graphene oxide (GO) for enhancing poly-vinylidene fluoride (PVDF) membranes. GO was synthesized using the Hummers method and a modified high-speed homogenization approach, then characterized via Raman spectroscopy and X-ray diffraction (XRD). The fabricated PVDF-GO membranes were further analyzed using SEM-EDS, AFM, water contact angle measurements, and bacterial rejection tests. Results confirmed successful GO synthesis and integration into the polymer matrix. GO incorporation improved hydrophilicity, reducing the water contact angle from 120° (pure PVDF) to 66° and 56° in PVDF/PVP-GO membranes via high-speed homogenization and conventional methods, respectively. The modified membranes exhibited a 5–6 times larger pore size than pure PVDF and achieved nearly 100% bacterial rejection. Additionally, PVDF/PVP-GO(h) showed a 91.76% faster production time efficiency than PVDF/PVP-GO(s).
Evaluation of Phenol Transport Using Polymer Inclusion Membrane (PIM) with Polyeugenol as a Carrier Febriasari, Arifina; Siswanta, Dwi; Kiswandono, Agung Abadi; Aprilita, Nurul Hidayat
Jurnal Rekayasa Kimia & Lingkungan Vol 11, No 2 (2016): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v11i2.5112

Abstract

A recovery study of phenol with Polymer Inclusion Membranes (PIMs) needs to be evaluated to determine values of transport kinetic parameter, level of stability, and selectivity of the membrane. This paper describes results of the evaluation of phenol transport using PIMs with polyeugenol as a carrier. PIMs were made by mixing polyeugenol, dibenzylether, and polyvinylchloride in a solvent (tetrahydrofuran) then printed in a container with diameter 4.5 cm and allowed to vaporize for 72 hours. Further evaluation studies are conducted at pH 4.5 with various parameters, among of them are various times that were taken to identify parameters of the transport kinetics of phenol, membrane stability, characterization, and testing of membrane selectivity by comparing transport of phenol with another compound, in this study chromium is used. This study results in calculation of values of transport kinetics of membrane permeability obtained at 8.8 x 10-5 m/s, flux value of 9.512 x 10-4 g/m2s, and diffusion coefficient of 3.826 x 10-11 m2/s. Repeating use over three times, 48 hours, indicates reduction in power of phenol transport by 70.81%. While selectivity test indicates that membrane is used more selectively against phenol than chromium metal. Based on study results, phenol transport effectiveness using PIM with polyeugenol as carrier is 91.4% in optimum condition.
PENDAMPINGAN DESA BERKELANJUTAN PENGOLAHAN SAMPAH ORGANIK MENJADI KOMPOS DI DESA DALUNG KECAMATAN CIPOCOK KOTA SERANG Arlofa, Nina Arlofa; Febriasari, Arifina
Jurnal Berdaya Mandiri Vol. 5 No. 3 (2023): JURNAL BERDAYA MANDIRI (JBM)
Publisher : Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/jbm.v5i3.4198

Abstract

The waste produced in the city of Serang reaches 360 tons/day, while the waste that can be transported by the Environmental Service (DLH) in the town of Serang to the Final Disposal Site (TPA) is only around 70-80 tons/day. In general, waste management in the community is by burning, throwing it into the river, or collecting it in trash cans to be then taken by the garbage officer and disposed of at the TPA. The same thing also happened in Dalung village, the waste generated from community activities was burned or collected into trash bins to be then taken by officers to be disposed of in the waste landfill. Burning waste causes pollution, and waste disposal in landfill causes degradation of cleanliness and environmental quality due to methane gas which causes global warming, where the gas has a destructive power 23 times stronger than carbon and other gases such as SO2 gas which causes odor. Organic waste can be processed into liquid fertilizer, compost, or methane gas. The implementation of community activities aims to increase public knowledge about the importance of waste management, layout arrangements, and the manufacture of organic and inorganic waste bins as well as training in composting. keywords: fermentation, compost, organic, rubbish
UJI KEMAMPUAN KITOSAN DAN SELULOSA PADA PROSES PENJERAPAN LOGAM Fe DAN Zn YANG TERKANDUNG DALAM LIMBAH OLI BEKAS DENGAN METODE KOLOM FILTRASI Febriasari, Arifina; Maulana, Agan; Nurdin, Nurdin
Analit : Analytical and Environmental Chemistry Vol. 1, No. 01 October (2016) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v1i1.2016.p

Abstract

Limbah oli bekas mengandung beberapa zat pencemar. Diantara zat pencemar tersebut adalah logam berat yang termasuk dalam golongan limbah B3. Pada artikel ini akan diuraikan hasil dari penelitian mengenai uji kemampuan kitosan dan selulosa dalam menjerap logam pencemar Fe dan Zn yang terkandung di dalam limbah oli bekas dengan metode kolom filtrasi. Limbah oli bekas dilewatkan pada suatu kolom filtrasi yang telah diisi kitosan dan selulosa dengan perbandingan (kitosan:selulosa w/w) berturut-turut; 3:1, 6:1, dan 9:1, kemudian dianalisis kandungan Fe dan Zn pada masing-masing sampel untuk mengetahui prosentase perubahan konsentrasi logam Fe dan Zn di dalam limbah oli bekas dengan instrument AAS. Berdasarkan hasil penelitian, perbandingan optimum kitosan dengan selulosa untuk penjerapan logam Fe adalah 9:1 (w/w) dengan penurunan sebesar 45,65 %, sedangkan perbandingan optimum kitosan dengan selulosa untuk penjerapan logam Zn adalah 6:1 (w/w) dengan penurunan sebesar 13,33 %.
Co-Authors Agung Abadi Kiswandono Arlofa, Nina Arlofa, Nina Arlofa Dwi Siswanta Ferry Ferdiansyah, Ferry Hilyati Hilyati Mahardika, Muhammad Bagas Adhistya Maulana, Agan Muhammad Ridwan Nurdin Nurdin Nurul Hidayat Aprilita Salsabila, Shafa Marwa Sudjarwo, Wisnu Arfian Anditya Supriyadi Supriyadi Sutrasno Kartohardjono Toca-Herrera, Jose Luis