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Farouk Sumarli
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Engineering

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Green Method: The Performance of Biochar in Water Filtration Lukman Hakim; Farouk Sumarli; Rafit Mahendra; Siun
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 14, No. 02, Juli 2022
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v14i2.1297

Abstract

Abstract: The results of measuring the power of Hydrogen (pH) of 5.5 mg/l and Total Dissolved Solid (TDS) of 3.20 mg/l level of water wells in a village, including in a school of Madrasah Tsanawiyah Negeri 5 in Tanjung Medan Rokan Hulu is considered not within permissible limit of World Health Organization (WHO) standards. For that reason, experimental research was conducted by firstly designing and making a water filtration device from Polyvinyl Chloride pipe of 4 inch in diameter, 100cm long, and 1 inch channel in and out. With the green method treatment, the biochar used are Coconut Shell Charcoal (CSC) and Bagasse Charcoal (BC), with additives material such as River Sand (RS), Fiber Palm (FP), and Crushed Gravel (CG). The results of the analysis prove that the best performance of Biochar in Water Filtration (BWF) to increase the content the pH of water to 89.09% is done by Coconut Shell Charcoal (CSC) biochar. While the best for reducing the water TDS level is performed by Bagasse Charcoal (BC) at 64.06%. The performance for pH increases and at the same time decreases the TDS level of water is done by Bagasse Charcoal (BC) biochar with a pH of 7.8 mg/l, and a TDS of 1.15 mg/l. Meanwhile, the filtration combination matrix that produces water according to the WHO standard permissible criteria is (A6+B6+C6+D1+E6), (A6+B6+C2+D2+E6), (A6+B6+C3+D3+E6), (A6+B6+C4+D4+E6), and (A6+B6+C5+D5+E6), as well (A6+B6+C1+D6+E6). So, it can be concluded that Biochar in Water Filtration (BWF) needs to be developed.
Mathematica Model Physical Collision On Comminution and Fragmentation Of Brittle Material Fracture Lukman Hakim Nasution; Farouk Sumarli; Rafit Mahendra; Inpenas; Heri Suripto; Alpison; Yasin Yusuf
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 15, No. 01, Desember 2022
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v15i1.1659

Abstract

Pengembangan teori matematik physycal collision proses kominusi dan fragmentasi sampel batubara bitumius bergarispusat 10mm dengan cara ianya menghentamkan diri ke dinding rijid berbentuk setengah lingkaran berdiameter 60mm dengan jarak bervareasi; dimana tekanan tabung sebagai sumber kinetic energy untuk pergerakan sampel juga bervareasi. Analisis fragmen-fragmen pecahan sampel merujuk kepada teori physical collision kominusi dan fragmentasi partikel tunggal. Hasil analisis menunjukkan bahwa physical collision proses kominusi dan fragmentasi dapat ditentukan dari perubahan kondisi sistem pertama, kedua dan ketiga; dimana terjadinya perubahan static impact ke dynamic impact pada sampel. Kondisi perubahan static impact ke dynamic impact adalah proses distribusi energy impact merentasi material hingga terjadi pecah. Terjadinya pecah pada material menyebabkan perubahan bentuk dan ukuran awal kepada ukuran akhir sebagai proses kominusi dan fragmentasi secara matematik.
Co-Authors Alpison Inpenas Lukman Hakim Lukman Hakim Nasution Rafit Mahendra Siun Suripto, Heri Yasin Yusuf