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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 Journal Serambi Engineering (JSE) Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Mohamad Mirwan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary Other

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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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Abstract

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.
Efektivitas Penerapan Metode Penyiraman Dalam Aktivitas Pertambangan Bentonit di Kabupaten Pacitan Arnetha Seputra; Mohamad Mirwan
JOURNAL SAINS STUDENT RESEARCH Vol. 3 No. 3 (2025): Jurnal Sains Student Research (JSSR) JUNI
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v3i3.4553

Abstract

Bentonit merupakan material sejenis lempung yang banyak mengandung mineral montmorillonite, bentonit memiliki sifat khas yaitu dapat mengembang (swelling) di dalam air, interkalasi dan bersifat penukar ion. Potensi bentonit di Indonesia cukup besar dan tersebar di berbagai daerah. Prospek pemasaran Bentonit di dalam negeri cukup besar, yang umumnya digunakan untuk berbagai macam kepentingan pada berbagai industri. Pacitan merupakan salah satu daerah di Indonesia yang memiliki potensi pertambangan bentonit. Keberadaan pertambangan bentonit dapat menimbulkan dampak negatif terhadap lingkungan, seperti menurunnya kualitas udara akibat emisi partikulat dan gas. Berdasarkan dokumen persetujuan teknis emisi salah satu perusahaan di Kabupaten Pacitan, dilakukan analisis emisi berdasarkan US EPA. Diketahui bahwa dari aktivitas penambangan menimbulkan partikulat TSP 24 jam dengan konsentrasi 30,7 μg/m³, PM10 tertinggi dengan nilai 13,7 μg/m3, dan PM2.5 tertinggi berada pada nilai 0,753 μg/m3. Berdasarkan nilai partikulat tersebut dilakukan pengelolaan dengan metode penyiraman sehingga terjadi penurunan sebesar 95%.
Efficiency of Fly Ash and Corncob as Alternative Adsorbents for Reducing Fe2+ and Mn2+ in Groundwater Devitasari, Lucia Adelina; Mohamad Mirwan
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.836

Abstract

Groundwater quality deterioration is common in densely populated areas and industrial zones due to elevated levels of Fe2+ and Mn2+, which alter water's physical properties and pose potential health risks. This study aimed to assess the effectiveness of fly ash and corn cobs as alternative adsorbents for the reduction of Fe2+ and Mn2+ concentrations in groundwater via continuous adsorption processes, with variations in adsorbent bed height and sampling time utilizing 40% H3PO4 as an activator. The results demonstrated that both fly ash and corn cobs were effective, achieving optimum removal efficiencies of 99.7% for Fe²+ and 89.2% for Mn2+ using fly ash, and 99.2% for Fe2+ and 87.7% for Mn2+ using corn cobs. Increasing the height of the adsorbent bed and extending the sampling time improved the removal efficiency of Fe2+ and Mn2+. FTIR analysis confirmed the involvement of –OH, Si–O, C=O, and C–O functional groups in the adsorption process. The Thomas model indicated that Qo decreased while KT increased with increasing adsorbent height. Corn cob exhibited a higher adsorption capacity, whereas fly ash demonstrated faster kinetic rates, with R² values ranging from 0.8052 to 0.9807. Contribution to Sustainable Development Goals (SDGs):SDG 6: Clean Water and SanitationSDG 12: Responsible Consumption and Production
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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Abstract

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.
Perencanaan Tempat Penyimpanan Sementara Limbah B3 Laboratorium Kimia di Fakultas Teknik dan Sains UPN “Veteran” Jawa Timur Michel Adam Yudistira; Mohamad Mirwan; Praditya Sigit Ardisty Sitogasa
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Fakultas Teknik dan Sains (FTS) Universitas Pembangunan Nasional “Veteran” Jawa Timur memiliki tujuh program studi dengan aktivitas laboratorium kimia yang berpotensi menghasilkan limbah Bahan Berbahaya dan Beracun (LB3). Saat ini, pengelolaan LB3 masih dilaksanakan secara mandiri oleh tiap laboratorium. Penelitian ini bertujuan untuk merancang Tempat Penyimpanan Sementara LB3 (TPSLB3) yang sesuai dengan spesifikasi teknis Peraturan menteri Lingkungan Hidup dan Kehutanan No. 6 Tahun 2021. Metode penelitian secara deskriptif kuantitatif dengan pengumpulan data dilaksanakan melalui pengukuran langsung, dan estimasi timbulan limbah berdasarkan data inventarisasi dan wawancara dengan laboran. Hasil penelitian menunjukkan total timbulan harian terdiri dari limbah dari laboratorium yang mengandung B3 (3,964 L/hari), limbah terkontaminasi B3 (2,266 kg/hari), kemasan bekas (0,107 kg/hari), lampu TL (0,043 kg/hari), baterai bekas (0,004 kg/hari), dan cartridge bekas (0,007 kg/hari). Berdasarkan data tersebut, dirancang TPSLB3 berupa bangunan permanen dengan ruangan berdimensi 10,8 m x 5,1 m x 4,2 m dengan masa simpan maksimal 180 hari. Fasilitas penyimpanan dilengkapi dengan sistem keselamatan berupa lampu explosion proof, APAR, bak penampung ceceran, pintu darurat serta 9 blok penyimpanan tersegregasi berdasarkan karakteristik mudah menyala, korosif, dan beracun.
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 Michel Adam Yudistira Muhammad Firdaus Kamal Navisa Ika Irmayanti Nova Ariyanti Praditya Sigit Ardisty Sitogasa Putri Redita Rositasari Ramadhani, Fajar Tegar Ryzki Marcella Amalia Triadi Salsabila Prawardani Sekar Huwaidah Qatrunada Thineza Ardea Pramesti Utami, Anggit Salis Media