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All Journal JFA (Jurnal Fisika dan Aplikasinya) Lingkar : Journal of Environmental Engineering
Arief Rahman
Prodi Teknik Lingkungan, Fakultas Sains Dan Teknologi, Universitas Islam Negeri Ar-Raniry Banda Aceh, Indonesia, Kode Pos: 23111
Engineering Environmental Science Physics

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PEMANFAATAN ARANG AKTIF KULIT JENGKOL (Pithecellobium lobatum) SEBAGAI ADSORBEN DALAM MENYISIHKAN KADAR COD DAN TSS PADA LIMBAH CAIR TAHU Arief Rahman; Wirda Febria Putri; Yeggi Darnas
Lingkar : Journal of Environmental Engineering Vol 2 No 1 (2021): LINGKAR : Journal of Environmental Engineering
Publisher : Program Studi Teknik Lingkungan Fakultas Sains dan Teknologi UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.362 KB) | DOI: 10.22373/ljee.v2i1.1871

Abstract

Tofu liquid waste comes from the washing process, boiling, and printing on tofu production. Tofu liquid waste is usually directly discharged into rivers or sewers which can have a negative impact on the environment. Tofu wastewater treatment with activated charcoal adsorption methods can reduce the concentration of pollutants contained in the waste. This research was conducted to determine the effect of variations in stirring speed in the removal of COD and TSS levels in tofu liquid waste. The adsorbent used in this study was activated charcoal from the skin of jengkol (Pithecellobium lobatum) carbonized at 350ºC which was then activated using 1M HCL. The adsorption process in this study used a mass of 2 g of activated charcoal; 4 g, 6 g and 8 g and stirring speed 60 rpm and 120 rpm. The initial concentrations of COD and TSS were 5140 mg/L and 605 mg/L. The results of the research that have been carried out show that the stirring speed and mass of the adsorbent affect the levels of COD and TSS as well as the effectiveness and adsorption capacity. A significant decrease in COD and TSS levels occurred in the treatment using 8 g of activated charcoal and a stirring speed of 120 rpm. The COD value obtained was 1137 mg/L, TSS was 103 mg/L and the efficiency value obtained was COD of 77.88% and TSS of 82.98%.
PENGOLAHAN LIMBAH CAIR PENCUCIAN KENDARAAN DENGAN SISTEM FILTRASI MENGGUNAKAN FILTER MULTIMEDIA Meri Selfia; Nur Aida; Arief Rahman
Lingkar : Journal of Environmental Engineering Vol 3 No 1 (2022): LINGKAR : Journal of Environmental Engineering
Publisher : Program Studi Teknik Lingkungan Fakultas Sains dan Teknologi UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.562 KB) | DOI: 10.22373/ljee.v3i1.1925

Abstract

The increase in vehicle washing services has a major impact on the environment, human health and ecosystems in water bodies. One method of treating vehicle washing liquid waste using a filtration system has been proven to be effective and capable of breaking down pollutants contained in wastewater. However, filtration using activated carbon, silica sand, zeolite and gravel media with different variations and doses of media thickness to reduce levels in the parameters pH, TSS, COD and Phosphate has not been studied. This study was conducted to determine the effect of variations and doses of filter media and their effectiveness in reducing the levels of TSS, COD, pH and Phosphate in vehicle washing waste, with variations in the thickness of activated carbon media 10, 20, 25 cm and silica sand, zeolite, gravel 15 , 20 cm. The results showed that activated carbon, silica sand, zeolite and gravel media were able to reduce TSS, COD, pH and phosphate levels. The decrease in levels is highest in the 6th variation. The percentage of TSS is 97.13%, COD is 93.93%, Phosphate is 74% and a decrease in pH 7. From the data presented, it can be seen that all variations are able to reduce levels of pollutant parameters. in vehicle washing waste.
The Use of Zinc Oxide (ZnO) Photocatalyst for Photodegradation of Car Wash Wastewater Abd Mujahid Hamdan; Rauza Azkiya; Arief Rahman; Mailiza Efriana; Rahmad Maulana; Hanif Hanif
Jurnal Fisika dan Aplikasinya Vol 19, No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v19i1.14019

Abstract

Untreated motor vehicle waste has the potential to damage the environment. The photodegradation method can decompose pollutants with the help of UV-A light and photocatalysts. Zinc Oxide (ZnO) is a photocatalyst capable of degrading motor vehicle washing waste. This study aims to investigate the ability of ZnO as a photocatalyst in degrading pollutants in motor vehicle waste. The independent variables in the experiment were the mass of ZnO and the contact time. The variables used were mass 0.5, 0.75, and 1 gram with a contact time of 2, 3, and 4 hours. The experimental results showed that ZnO irradiated with UV-A lamp was able to degrade organic substances. The mass and contact time of ZnO affect the effectiveness of photodegradation. These results show that the use of ZnO photocatalyst for photodegradation of Carwash Wastewater may be future technology to treat car wash wastewater.
Co-Authors Abd Mujahid Hamdan Hanif Hanif Mailiza Efriana Meri Selfia Nur Aida Rahmad Maulana Rauza Azkiya Wirda Febria Putri Yeggi Darnas