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All Journal Jurnal technoscientia Jurnal Dampak Jurnal Sains & Teknologi Lingkungan Konversi Sistem : Jurnal Ilmu-Ilmu Teknik AGREGAT Jurnal Serambi Engineering Al-Ard: Jurnal Teknik Lingkungan JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI JURNAL TEKNOLOGI TECHNOSCIENTIA International Journal of Environmental, Sustainability, and Social Science Envirotek : Jurnal Ilmiah Teknik Lingkungan Prosiding Seminar Nasional Teknik Sipil UMS Serambi Engineering
Pribadi, Arqowi
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation

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Journal : Serambi Engineering

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Evaluasi Operasional dan Pemeliharaan Instalasi Pengolahan Air Limbah Industri Kimia PT. XYZ Muchammad Ali Ma'shum Mujaddidi; Teguh Taruna Utama; Arqowi Pribadi
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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PT. XYZ is a company active in the chemical industry. Both its production and domestic activities generate waste. PT. XYZ has a waste water treatment plant (WWTP) that is in operation to treat the waste water produced. The treated wastewater is applied to the soil for irrigation of landscaping within the PT. XYZ industrial estate. The objective of this study is to evaluate the performance of the WWTP, particularly in terms of the operation and maintenance phases that affect its effectiveness. The standard operating procedures are based on the STP Guide: Design, Operation, and Maintenance by Ananth S. Kodavasa (2011), Book 3 SOP Asset Operation of UPTD Domestic Wastewater Management (2018), and Minister of Public Works Regulation No. 4 of 2020, Annex II. The WWTP operation and maintenance procedures include units such as grease trap, equalisation tank, mixing tank, settling tanks I & II, aeration pond, filtration and storage tank. The study found discrepancies in several units, particularly the grease trap, equalisation tank, aeration, filtration and storage tanks. These discrepancies are due to procedures not yet included in the SOP, delayed painting schedules and uninstalled accessories. All parameters meet the required effluent quality standards. The operating costs for wastewater treatment are estimated at Rp. 4,912/m³.
Uji Kuat Tekan Beton Dengan Penambahan Limbah Ampas Kopi Sebagai Substitusi Parsial Semen Arqowi Pribadi; Mega Ayundya Widiastuti
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Concrete is the main material used in construction and is a mixture of sand, gravel, cement and air. The addition of materials such as coffee grounds can be an environmentally friendly alternative to partially replace cement in concrete mixes. This study examines the effect of variations in the addition of coffee grounds on the compressive strength of concrete, with the proportions of coffee grounds tested being 0%, 2.5%, 5%, and 7.5%. Tests were conducted on concrete cylinders of 150 mm diameter and 300 mm height, and the compressive strength was measured after 28 days of treatment. The test results showed that the addition of coffee grounds caused a decrease in the compressive strength of the concrete, with the average compressive strength values at 0%, 2.5%, 5%, and 7.5% variations being 36.78 MPa, 20.94 MPa, 16.98 MPa, and 11.04 MPa, respectively. Although coffee grounds cannot completely replace cement, this material can potentially be used as an environmentally friendly alternative for non-structural concrete applications. It can reduce the waste of coffee grounds while reducing the use of cement in construction, albeit with an impact on concrete strength.
Co-Authors -, Amrullah Abdul Hakim Aprillia Bunga Firdaus Auvaria, Shinfi Wazna Aviandini Galih Hanuranti Dedy Suprayogi Dyah Ratri Nurmaningsih Fitria Apriliani Utari Hanuranti, Aviandini Galih Karami, Abdillah Akmal KURNIANTO, Alfan Larasati, Indah Mega Ayundya Widiastuti Muchammad Ali Ma'shum Mujaddidi Munfarida, Ida Naufal Rozan, Muhammad Nilandita, Widya Nisya, Risma Awwalin Nurdiansyah, Amirul Rahayu, Septiya Rini Ratih Arum Sari Rr Diah Nugraheni Setyowati, Rr Diah Nugraheni Sarita Oktorina Septiyanna Rokhmawati Dewi SETYOWATI, Diah Nugraheni Sulistiya Nengse Taufiqurrahman, Ahmad Teguh Taruna Utama Widayanti, Linda Prasetyaning Yusrianti, Yusrianti Yustrianti Yustrianti