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All Journal Nusantara Science and Technology Proceedings Environmental Science and Engineering Conference Proceeding AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Sains dan Teknologi Envirotek : Jurnal Ilmiah Teknik Lingkungan Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Sains Student Research Serambi Engineering Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Mohamad Mirwan
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Journal : Serambi Engineering

 1 
Combination of Aeration-Adsorption Using Diffuser Aerator and Palmyra Palm Shell Activated Carbon For Groundwater Quality Improvement Utami, Anggit Salis Media; Mohamad Mirwan; Rizka Novembrianto
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study examines the use of a combined aeration-adsorption process utilizing activated carbon derived from Borassus flabellifer (palmyra palm shell) to improve groundwater quality. The aeration process increases dissolved oxygen (DO) levels, facilitating the oxidation of metal contaminants such as iron (Fe) and manganese (Mn). Meanwhile, the activated carbon is used to adsorb any remaining contaminants that are not fully oxidized. The results show that with a 60-minute aeration time, the DO concentration increased to 6.6 mg/L, and Fe and Mn concentrations were reduced by 53.6% and 7.7%, respectively. In the adsorption phase, optimal conditions were achieved at a flow rate of 10 L/h and an adsorption media height of 45 cm, resulting in Fe removal of 63.19%, Mn removal of 99.25%, TDS reduction of 15.51%, and TOC reduction of 17.61%. These findings support the use of the combined aeration-adsorption process as a more environmentally friendly and efficient method for groundwater treatment.
Uji Efektivitas Kombinasi Filter-Adsorpsi Arang Tempurung Kelapa Pada Penurunan COD dan TSS Limbah Cair RPH Navisa Ika Irmayanti; Mohamad Mirwan
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Slaughterhouse waste is one of the sources of water pollution. If not properly managed, the slaughterhouse industry can have a significant negative impact on the environment and humans. The purpose of this study was to analyze the effectiveness of the combination of coconut shell charcoal filter-adsorption on the reduction of COD and TSS of slaughterhouse liquid waste. Slaughterhouse liquid waste is flowed into a filtration-adsorption reactor with a flow rate of 54 ml/minute and using the Slow Sand Filter (SSF) method, downflow flow with a continuous system. There are five reactors namely filtration-adsorption reactors A, B, C, D and E with different filter media in each reactor with sampling times of 0, 30, 60, 90 and 120 minutes. The variables measured were the effectiveness of the filter media reactor in reducing COD and TSS parameters, the adsorption capacity of reactors B and C, and the breakthrough time on the filter media of reactors B and C. The results showed that the best reactor effectiveness was in reactor E, which was able to remove 75% COD and 70.8% TSS parameters with a mesh size of 100 and a sampling time of 120 minutes. The highest adsorption capacity on 10 mesh and 100 mesh coconut shell activated carbon media was 0.0222 mg/mg adsorbent and 0.0233 mg/mg adsorbent, respectively. The breakthrough time obtained varied from 0.78 days to 1.60 days in each reactor.
Analisis Perbandingan Karbon Aktif Tempurung Keluak (Pangium Edule) dan Karbon Aktif Komersial dengan Aktivator HCl dan KOH dalam Menurunkan Cr (VI) dan Cu (II) pada Limbah Elektroplating Ramadhani, Fajar Tegar; Mohamad Mirwan
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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The electroplating process, also known as electrocoating or metal plating, is a technique used to coat the surface of a solid material with a layer of metal through the application of an electric current in an electrolyte solution. This study utilized keluak shell biomass as an adsorbent in a fixed-bed column. The objective of this research was to analyze the adsorption capacity of keluak shell in reducing Cr⁶⁺ and Cu2+ concentrations. The research method employed was experimental, using electroplating wastewater obtained from an industry in Sidoarjo. The study was conducted with activated carbon derived from keluak shells, activated with 1 M HCl and 5% KOH solutions, as well as commercial activated carbon for comparison. The variations were based on sampling times of 30, 60, 90, and 120 minutes. The results showed that the application of keluak shell biomass activated with 1 M HCl, 5% KOH, and commercial activated carbon as adsorbents yielded optimal concentration reductions of Cr⁶⁺ 23.9 mg/L; Cu2+ 0.7593 mg/L; Cr⁶⁺ 56.8 mg/L; Cu2+ 0.7593 mg/L; Cr⁶⁺55.4 mg/L; Cu2+ 0.7593 mg/L, respectively. These values were obtained at 30 and 60 minutes sampling intervals, where the initial adsorption rate was relatively high due to the unoccupied surface of the adsorbent, thereby enhancing removal efficiency.
Co-Authors Andrea Thrisiawan Pradhana Arnetha Seputra Aulia Ulfah Farahdiba Brillyan Kusuma Pradani Delia Anisa Putri Devitasari, Lucia Adelina Ghany Firmansyah Insanul Mufti F Komang Mega Ilda Utari Muhammad Firdaus Kamal Navisa Ika Irmayanti Nova Ariyanti Putri Redita Rositasari Ramadhani, Fajar Tegar Ryzki Marcella Amalia Triadi Salsabila Prawardani Sekar Huwaidah Qatrunada Thineza Ardea Pramesti Utami, Anggit Salis Media