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All Journal Jurnal Penelitian Hasil Hutan Menara Perkebunan Jurnal Penelitian Hasil Hutan Jurnal Sains dan Teknologi Helium: Journal of Science and Applied Chemistry Indonesian Journal of Limnology
Sutanto Sutanto
Universitas Pakuan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Kualitas Air Tanah dan Peta Sebaran Kualitasnya di Sekitar Tempat Pembuangan Akhir (TPA) Galuga Sri Melianti Rahayu; Farid Ramadhan; Teti Syahrulyati; Sutanto Sutanto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 6 (2025): Desember 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i6.6526

Abstract

The increasing population has resulted in a higher volume of waste at the Galuga landfill, generating leachate that potentially contaminates the surrounding shallow groundwater. Groundwater serves as a crucial source for domestic needs; thus, its contamination poses serious health risks and threatens ecological balance. This study aims to analyze the quality of shallow groundwater around the Galuga landfill and to map its spatial distribution as a foundation for sustainable environmental monitoring and management. The research methods included collecting groundwater samples from seven representative points along the groundwater flow direction, analyzing physical parameters (temperature, pH, turbidity), chemical parameters (Fe, Mn, NO₃⁻, and Cl⁻), and microbiological parameters (E. coli and total coliform), followed by calculating the Water Quality Index (WQI) using the NSF-WQI method. The findings revealed that several parameters, particularly Fe, Mn, E. coli, and total coliform, exceeded the permissible drinking water standards established by the Indonesian Ministry of Health Regulation No. 492/Menkes/Per/IV/2010. The average WQI score of 61.30 indicates a moderate water quality category. Therefore, it can be concluded that the shallow groundwater surrounding the Galuga landfill has been contaminated and is not suitable for direct consumption as drinking water. Consequently, it is recommended to implement more effective leachate management systems and conduct regular groundwater quality monitoring to prevent further contamination and safeguard community health and environmental sustainability.
Extraction and characterization of fulvic acid from oil palm empty fruit bunches Firda Dimawarnita; Khairy Yunda Maharani; Sutanto Sutanto; Yora Faramitha; Donny Nugraha Kalbuadi; Didiek Hadjar Goenadi
E-Journal Menara Perkebunan Vol. 93 No. 2 (2025): 93(2), 2025
Publisher : INDONESIAN RESEARCH INSTITUTE FOR BIOTECHNOLOGY AND BIOINDUSTRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v93i2.669

Abstract

Oil palm empty fruit bunches (OPEFB) contain 27.78% lignin, which can serve as an alternative source of renewable fulvic acid, alongside soil and coal. This study aims to conduct the fulvic acid extraction process using a microwave extractor. The extraction process was carried out using H2O2 solvents with concentrations of 18, 21, and 24% and various sample types (OPEFB, shilajit, and commercial fulvic acid fertilizer), with three repetitions. The resulting liquid fulvic acid extract was then made into powder using freeze-drying. Quantitative testing was conducted using the spectrophotometric method, while qualitative testing employed Fourier-Transform Infrared Spectroscopy (FTIR), Proton Nuclear Magnetic Resonance (¹H NMR), spectrofluorometry, a CHN analyzer, and Thermogravimetric Analysis - Differential Scanning Calorimetry (TGA-DSC). The results showed that the best solvent concentration for the fulvic acid extraction process was H2O2, 21% of the total in the OPEFB sample. The highest fulvic acid content was found in the OPEFB sample at 23.59%; in the shilajit sample, it was 9.62%, and in the commercial fulvic acid fertilizer sample, it was 6.97%. The characterization results from spectrophotometric analysis, elemental analysis, and TGA-DSC analysis showed the potential of fulvic acid in the OPEFB sample, as it exhibited similarities with the analysis results of commercial fulvic acid (shilajit & commercial fulvic acid fertilizer).
Co-Authors Achmad Khaerul Mustaqim Amelia Puspitasari Ani Iryani Bina Lohita Sari Dian Anggraini Indrawan Didiek Hadjar Goenadi Donny Nugraha Kalbuadi Farhan Fatur Rachman Farid Ramadhan Firda Dimawarnita Fitra Rachmalia Gunawan Pratama Yoga Gustan Pari Intan Wulandari Khairy Yunda Maharani Kristin Noni Riyanti Buraen Linda Jati Kusumawadani Lisna Efiyanti Muhammad Fathurrahman Nailah Hakimah Nurulia Susanti Riza Shabrina Zamzani Siti Kholisoh Siti Warnasih Sri Melianti Rahayu Teti Syahrulyati Yora Faramitha Yulian Syahputri