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All Journal MEDIA KONSERVASI Jurnal Ilmu Kimia Universitas Brawijaya Journal of Degraded and Mining Lands Management The Journal of Pure and Applied Chemistry Research EduChemia: Jurnal Kimia dan Pendidikan Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Jurnal Kartika Kimia Rengganis Jurnal Pengabdian Masyarakat Molekul: Jurnal Ilmiah Kimia Biosaintifika: Journal of Biology & Biology Education
Barlah Rumhayati
Chemistry Department Brawijaya University Jl. Veteran 65145 Malang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Social Sciences

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Electrocoagulation Applied for Removal of Microplastic Polyvinyl Alcohol (PVA) with Aluminium-Aluminium (Al-Al) Electrode in Wastewater Fardiyah, Qonitah; Ramadani, Azaria Ivana; Rumhayati, Barlah
Indonesian Journal of Chemistry Vol 26, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.109998

Abstract

The use of fabric fresheners and cleaners in the form of laundry capsules has recently received significant attention due to their practicality. The film layer used in the production of laundry capsules is made of plastic derived from polyvinyl alcohol (PVA) as its raw material. The abundance of PVA in domestic waste has led to the increasing presence of PVA microplastic contaminants in aquatic environments. The novelty of this research lies in the use of Al-Al electrodes and the addition of surfactants in the electrocoagulation method for removing PVA microplastics. This study aims to investigate the effect of surfactants on the removal of PVA microplastics in aquatic environments using Al-Al electrodes by electrocoagulation. The parameters evaluated included electrolysis time, voltage, pH, electrolyte type, and electrolyte concentration. The study achieved a PVA microplastic removal efficiency of 93.84% at an electrolysis time of 40 min, with a voltage of 10 V at pH 3, using a 0.01 M NaCl electrolyte solution, as determined by gravimetric analysis. UV–vis yielded a PVA microplastic removal efficiency of 99.52%. Application to synthetic laundry pod samples resulted in a PVA microplastic removal efficiency of 81.97% as determined by UV–vis analysis.
Bioremediation of the Lapindo mud contaminated soil using eco-enzyme: Case of a total petroleum hydrocarbon removal Sulistiyaningrum, Dwi Rakhmatun; Rumhayati, Barlah; Srihardyastutie, Arie
Journal of Degraded and Mining Lands Management Vol. 13 No. 1 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.131.9659

Abstract

This research investigated the effectiveness of bioremediation of Lapindo mud-contaminated soil using an eco-enzyme for total petroleum hydrocarbons (TPH) removal. The soil samples were collected from Glagaharum and Gedang Villages, Sidoarjo, East Java, Indonesia, which have been contaminated by the Lapindo mud containing TPH. The bioremediation experiment was carried out ex situ in a container filled with contaminated soil samples, which were watered with eco-enzymes daily. Bioremediation time was optimized at 0, 7, 4, 21, and 28 days while the eco-enzymes concentration was varied at 0, 5, 10, and 15% (v/v). The concentration of TPH in the soil samples was analyzed using the gravimetric method at 0, 7, 4, 21, and 28 days. The results showed that TPH concentration was gradually decreased during remediation. The remediation removal percentage reached an optimum after 21 days. The TPH was optimally removed using the eco-enzyme at 15% (v/v), achieving 95.39%. The bioremediation of contaminated soil using eco-enzymes also increased the contents of total C and total N by 50.97% and 39.43%, respectively. However, this treatment reduces total P by 50.89%. Furthermore, the pH and temperature values for the three samples before and after the bioremediation process remained fairly stable, within the pH range of 6-7 and the temperature range of 25.7-26.2 °C.
Co-Authors Akhmad Sabarudin Alvin Juniawan An-Nufuus, Digwanggi Arum Tazkiyatu Anggraeny, Baiq Octaviana Dwi Anggraini, Vita Dwi Ani Mulyasuryani Arie Srihardyastutie Asih Hajaranti Bambang Ismuyanto Candra Irawan Catur Retnaningdyah Darjito Darjito Diah Mardiana Dian Siswanto Dwi Oktavianti Hulwati, Siti Ika Diah Safitri Ika Rosemiyani Layta Dinira Layta Dinira Masruri Nashiroh, Ni'matun Nongnoot Wongkaew Qonitah Fardiyah Rafif, Sullahudin Ahmad Ramadani, Azaria Ivana Risti, Sandria Gita Rossy Dwi Adhi Pratiwi RR. Ella Evrita Hestiandari Sabarudin, Akhmad Sanawi, Dede Ardiansyah Takdir Abubakar Solo, Anna Apriani Maniuk Sulistiyaningrum, Dwi Rakhmatun Ulayya, Salwa Ulfa Andayani, Ulfa Vita Tria Mardila Wijaya, Khalida Yunin Hidayati