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All Journal Jurnal Kimia Mulawarman Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat JURNAL PHOTON JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)
Zul Alfian
Program Studi Kimia, FMIPA, Universitas Sumatera Utara ,Medan.
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Physics Social Sciences

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Electrolysis of Metal Coating Industrial Waste Using Carbon Electrode to Reduce Metal Levels of Chromium (Cr), Zink (Zn), and Cadmium (Cd) Alfian, Zul; Hutagalung, Valentina
Journal of Chemical Natural Resources Vol. 6 No. 1 (2024): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v6i1.16208

Abstract

The wastewater from the metal coating industry comprises hazardous and poisonous metals, necessitating the reduction of its concentration before its release into water. The typically employed chemical technique involves the addition of Poly Aluminium Chloride (PAC), which causes the hazardous element to accumulate due to the subsequent application of Poly Aluminium Chloride (PAC). Next, the metal content is measured and determined using the atomic absorption spectrophotometry. This study employed the electrolysis technique utilizing carbon electrodes. The liquid waste undergoes electrolysis with voltage changes of 8, 11, 14, and 17 volts for 2 hours. The investigation yielded the optimal voltage for minimizing the metal content. The voltage applied to the metal is 17 volts. The reduction in the concentrations of Cr, Zn, and Cd metals achieved with the optimal voltage is 63.02%, 70.02%, and 80.14%, respectively.
Reduction of Metal Density of Iron (Fe) and Natrium Minerals (Na) in Boring Water Using Rubber Fruit Sheets Active Archoic Alfian, Zul; Ashari, Uly
Journal of Chemical Natural Resources Vol. 6 No. 1 (2024): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v6i1.16221

Abstract

Activated carbon is a highly popular adsorbent for the absorption of metal ions. Lignocellulosic materials can be used to produce activated carbon, which is both renewable and abundant, as well as being cost-effective. The objective of this research is to investigate the reduction of iron (Fe) and sodium (Na) levels in the artesian well by utilizing activated carbon made from rubber shells. The materials utilized include rubber shells, a solution containing 10% H3PO4 (phosphoric acid), water from an artesian well, and distilled water (aquadest). The carbonization process was conducted at 300º C for 1 h, using an adsorbent size of 120 mesh. In addition, chemical activation was performed using a 10% H3PO4 solution for 24 h, followed by physical activation through heating in a furnace at a temperature of 500ºC for 1 hour. The acquired activated carbon is utilized for the absorption of Fe and Na. The activated carbon was characterized using X-ray diffraction (XRD), and the concentration of Fe and Na minerals was determined using an Atomic Adsorption Spectrophotometer (AAS). The results indicated a reduction of 97.9% in the concentration of iron (Fe) and a decrease of 90.01% in sodium (Na) levels.
Reduction of Metal Density of Iron (Fe) and Copper (Cu) Using Corn Active Archarge and Commercial Active Archarge on Water from a Bali Well Alfian, Zul; Silvia, Fristiwayuni Dara
Journal of Chemical Natural Resources Vol. 6 No. 1 (2024): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v6i1.16223

Abstract

Through the use of commercial and cassava peel activated charcoal, research was done on how to lower the levels of iron (Fe) and copper (Cu) in well water that had been excavated. X-ray diffraction (XRD) was utilized to conduct the activated charcoal test. The samples were collected from the wells of individuals residing in Kelurahan Sumber Karya Binjai Timur. Water samples were treated with concentrated nitric acid (HNO3) and decomposed. The concentration of iron (Fe) and copper (Cu) was determined before and after adding activated charcoal made from cassava peel and commercially available activated charcoal, with masses of 1, 2, 3, 4, and 5 g. This was done using Atomic Absorption spectrophotometry (AAS) at specific wavelengths of 248.3 nm for Fe and 324.8 nm for Cu. The research findings indicate a decrease in iron (Fe) and copper (Cu) concentration before and after. The amount of activated charcoal made from cassava peel was varied from 1g to 5g. As the mass increased, the iron (Fe) concentration fell by 94.08%, 97.53%, 99.01%, 99.10%, and 99.07% respectively. The copper (Cu) content was reduced by 92.73%, 96.36%, 96.36%, 98.48%, and 97.12%. For commercial activated charcoal with varying masses of 1, 2, 3, 4, and 5 grams, the  concentration of iron (Fe) was reduced by 0.27%, 52.41%, 72.70%, 98.85%, and 98.09%, respectively. The copper (Cu) content reduced by 32.22%, 71.25%, 95.31%, 98.18%, and 96.06%.
Co-Authors Ashari, Uly Cahyady, Boby Cut Fatimah Zuhra Desi Ardilla Harry Agusnar Harry Agusnar Hutagalung, Valentina Lubis, Ria Ardianti MUHAMMAD TAUFIK Mutia Khairuni Nasution, Aurora Khairani Nst, Rumondang Bulan Razali, Mariany Rini Hardiyanti Rumondang Bulan Nst Siahaan, M. Arifin Silvia, Fristiwayuni Dara Siregar, Ronaldo Sensini Situmorang, Helen Gandaria Syarifah Aini Yusbarina -