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All Journal Indonesia Medicus Veterinus IPTEK The Journal of Engineering Biotropika Terampil : Jurnal Pendidikan dan Pembelajaran Dasar EDUCATIO : Journal of Education Eralingua : Jurnal Pendidikan Bahasa Asing dan Sastra JPI Proceedings of the 1st UR International Conference on Educational Sciences Pendas : Jurnah Ilmiah Pendidikan Dasar PEDAGOGIK : JURNAL PENDIDIKAN Transformatif Jurnal Farmasi Medica (Pharmacy Medical Journal) PMJ Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ International Journal for Educational and Vocational Studies MULTINETICS Journal of English Education and Teaching (JEET) PROJECT (Professional Journal of English Education) Bio-Inoved : Jurnal Biologi-Inovasi Pendidikan Jurnal Vokasi Lumbung Farmasi : Jurnal Ilmu Kefarmasian Jurnal Pendidikan Bahasa Inggris Proficiency Jurnal Farmasi dan Sains Indonesia (JFSI) Griya Journal of Mathematics Education and Application Jurnal Riset dan Pengabdian Masyarakat Marketing Management Studies Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Riau Education Journal Fahima: Jurnal Pendidikan dan Kajian Keislaman Jurnal Cerdik: Jurnal Pendidikan dan Pengajaran Pharmaqueous Anoa: Journal of Animal Husbandry Journal of Education, Cultural, and Politics Media Didaktika Natural Science Education Research (NSER) Journal of Innovation and Research in Primary Education Jurnal TLM Blood Smear Al Iqtishadiyah: Journal of Islamic Economics and Finance Jurnal Pendidikan Indonesia (Japendi) KOLONI Priviet Social Sciences Journal Jurnal Guru Pencerah Semesta (JGPS) AL QALAM JURNAL KEPENDIDIKAN Indonesian Educational Administration and Leadership Journal (IDEAL) English Language, Linguistics, Literature, and Education Journal: ELLTURE JOURNAL Jurnal Kajian Islam dan Sosial Keagamaan International Journal of Renewable Energy Development SIYAR (Social Issues by Academic Researhers) Journal Proceedings Series of Educational Studies Kunir: Jurnal Farmasi Indonesia (KJFI) Kajian Pendidikan, Seni, Budaya, Sosial dan Lingkungan E-Amal: Jurnal Pengabdian Kepada Masyarakat SAMBARA: Jurnal Pengabdian Kepada Masyarakat Journal of Islamic Philosophy and Contemporary Thought Tapis : Jurnal Penelitian Ilmiah
NURUL FAIZAH
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Journal : IPTEK The Journal of Engineering

 1 
Application of Electrocoagulation in Stabilizing pH and Removing Pollutants from Domestic and Urban Wastewater Using Aluminum Electrodes Kaloka, Ardista Izdhihar; Faizah, Nurul; Arifin, Rizal; Aulia, Anisa Fatma; Putra, Muhammad Benaldo Anugrah; Wati, Ni’mah; Prayadi, Icha Nur
IPTEK The Journal of Engineering Vol. 11 No. 2 (2025)
Publisher : Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember.

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Abstract

This study investigates the application of electrocoagulation using aluminum electrodes to stabilize pH and remove pollutants from various real wastewater sources in Surabaya, Indonesia, including laundromats, fast food restaurants, campus canteens, mechanical workshops, and tofu industries. A batch-mode electrocoagulation process was conducted using 10 A of current over 60 minutes, and the performance was evaluated based on pH changes, turbidity, and Total Suspended Solids (TSS) removal. The highest TSS removal efficiency of 98% was observed in machine shop wastewater, while laundromat samples also achieved high performance with 97% reduction. Electrocoagulation demonstrated strong pH stability in effluents with buffering compounds such as those from campus canteens and workshops, whereas fluctuating pH and turbidity levels were found in tofu and fast-food effluents, indicating the need for process optimization. Turbidity decreased significantly across all samples, confirming effective floc formation during electrolysis. The findings confirm that electrocoagulation is a promising method for treating both domestic and urban wastewater. However, integrating additional processes such as adsorption or filtration is recommended to enhance performance for complex wastewater compositions and ensure compliance with discharge standards.
Effect of Inhibitor Addition, pH, and Current Density on the Corrosion Rate of Fe Metals Aulia, Anisa Fatma; Faizah, Nurul; Arifin, Rizal; Kaloka, Ardista Izdhihar; Thufailah, Gladys Sukma
IPTEK The Journal of Engineering Vol. 11 No. 2 (2025)
Publisher : Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember.

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Corrosion significantly impacts public safety and the economy, causing substantial financial losses, infrastructure damage, and hazardous incidents across various industries. Researchers investigated the effects of pH, current density, and corrosion inhibitors (potassium chromate and potassium nitrate) on iron corrosion by measuring weight loss of iron samples immersed in sulfuric acid over time. The addition of inhibitors showed that KNO3 was more effective in reducing the corrosion rate, with values of 4.992068, 3.744051, 2.736034, 1.728017, and 0.608008 mils per year, compared to K2CrO4, which resulted in 9.728132, 7.296099, 5.472066, 3.648033, and 1.216017 mils per year. Corrosion rate increased as pH decreased, with Fe showing corrosion at pH 6.21, 5.18, 4.26, 3.85, and 3.22. The relationship between current density and corrosion rate was found to be proportional, with voltage values of 1.31, 2.24, 3.16, 5.11, and 7.1 amperes per square meter (A/m^2). This study confirms that inhibitor type, acidity (pH), and current density significantly influence corrosion behavior, where increasing pH and current density can accelerate corrosion, and potassium nitrate (KNO3) demonstrates superior corrosion inhibition compared to potassium chromate (K2CrO4).
Co-Authors 'Alam, Ghasa Faraasyatul ., Abbas A. Mustika Abidin Abror Achmad Dwitama Karisma Adha, Munirah Fatimah Agustina, Melinda Ahmad Nashir Ahmad Zuhdi Ahmad Zuhdi Ahmad Zulham Fahamsyah Havy Alaida, Ucik Andari, Fadhilah Nur Antari, Gladeva Yugi Ardiana Aribaat, Salma Khoirotunnisa Arifin, Rizal Armenia, Ivan Gustra Manca Aulia, Anisa Fatma Aulia, Kunni Rofiqotul Ayu , Sadriana AYU LESTARI Bachtiar, Fikri Badrud Tamam BAMBANG SURATMAN Basuki, Edi Pujo Br.Tarigan, Dinda Florentina Rania Burhanuddin Burhanuddin Dewandono, Wiranto Aji Diah Ratna Widiarti Eti Setiawati, Eti Fairuzia Khaidaroh, Hilda faizah, Nurl Falaq, Mukhammad Fajrul Faridah, Mutiah Fatahillah, Fatahillah Fauziyah, Rizka Febrianda, Sony Difa Febriani, Putri Indah Febry Kodoatie, Maria Stela Firdiansyah, Firdiansyah Fitri Andriani Fatimah Fitri, Wahyu Nurul Fitria Wahyuni Hardianti, Laily Harun Al-Rasyid Hasanudin, Muhammad Nurul Hasna, Oktavia Hikmah, Harisna I Ketut Suatha I Wayan Batan Indrawadi, Junaidi Indrowaty, Sri Aju - Isa Anshori Joang Ipmawati Kalloka, Sultan Hendra Mahardi Kaloka, Ardista Izdhihar Kartini Kartini Kartini, Dyan Nurwita Khasanah, Indayati Kirana, Khalida - Lailatul Qomariyah, Lailatul Lasiama, Nabila Lestari, Ida Puji Listiana Hidayati M. Imamuddin M. Yusuf Amin Nugroho Maria Montessori Moch Sasmito Djati MOCHAMMAD YASIR Mohamad, Nursa'adat Afifah binti Muali, Chusnul Muammar, Amri Mufsiroh, Istijabah Ifti Muhammad Alfian, Muhammad Mukhlisa, Dian Murtadlo Murtadlo Mustofa Mustofa Ngulum, Mochamad Bahrul Noviyanti Watman, Ika Nugroho, Muhammad Yusuf Amin Nur Aisyah Nurul Hidayat Pramesti, Novita Ayu Prana Dwija Iswara, Prana Dwija Pratiwi , Ika Ari Prayadi, Icha Nur Putra, Muhammad Benaldo Anugrah Putra, Nicky Rahmana Putro, Setiawan Cahyono Qomaria, Nur Rabbani, Sulthan Raden Bambang Sumarsono Rahman, K.A Rahmat Aryandi Ramlah Retnoningrum, Sri Murti Rivani, Sinta Rohman S, Taufiqur romdhoni, muhammad wildan S. Latinapa, Moh. Hidayat Şaban, Ömer Sabilissalim, Davi Sachputra, Sofyan Sukrian Safutri, Lhutfia Wahyu Saijun, Saijun Saputri, Nadia Elga Setiyadi, Bradley Setyaningrum, Eka Wahyu Shabrina, Amalina Shafina, Shafina Siti Ummi Masruroh Slamet Suyanto Sri Aju Indrowaty Suryanef Suryanef Syamsiarna Nappu, Syamsiarna Syarwani, Muhammad Thufailah, Gladys Sukma Tsaqifah, Ainun Wahyu Sopandi Wati, Ni’mah Wawan Shokib Rondli Widayanti, Agnisa Wifaq Kholidiyah, Ananda Wiwin Puspita Hadi Yahya Nur Ifriza Yenita Roza Yhustien, Dhea Yogananda, Amrina Amalia Zulfatun Ruscitasari Zulkipli Lessy