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All Journal International Journal of Marine Engineering Innovation and Research JURNAL PENGABDIAN PENDIDIKAN MASYARAKAT (JPPM)
Resarizki Utami
Institut Teknologi Sumatera
Religion Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Alternative Neutralizers for Acid Mine Wastewater: Characterization and Neutralizing Potency of Pond Ash and Concrete Sludge Dion Awfa; Rifka Noor Azizah; Ahmad Daudsyah Imami; Resarizki Utami; Edo Kharima Army; Evi Eri Narita; Muhammad Meiko Cahya Anugrah; Nasrul Putra; Wisnu Prayogo; Novriadi
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 1 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i1.4745

Abstract

One of the most widely used fuels is coal, where the South Sumatra region is an area with coal potential whose production is still being increased. On the other hand, there are negative impacts caused by coal exploration activities, one of which is mining runoff, commonly called acid mine drainage. Acid mine drainage has a low pH and contains inorganic constituents such as iron and manganese. Therefore, proper and optimum information processing is needed to support environmentally friendly mining management. In contrast, alternative materials such as blast furnace slag, wood ash, fly ash, cement kiln dust, and construction waste are being used. These materials are effective against AMD, at a relatively low cost, and outperform traditional neutralizers. However, comparing them with conventional agents is challenging due to limited data and experimental variation. In this study, the objectives to be achieved are 1) to determine the quality conditions of AMW at the study location, 2) to determine the effectiveness of the use of chemical and alternative compound neutralization agents in the processing process, and 3) to provide recommendations for the dosage, type of neutralization agent, and the most optimum time in AMW processing. The AMW obtained is then subjected to laboratory analysis related to quality, including TSS, pH, Fe, and Mn parameters. In addition, conventional and alternative neutralization agents are also prepared and then used to process AMW. Then, experiments were carried out on variations in the type of neutralization agent, the dosage of neutralization agent use, and the contact time between the neutralization agent and AMW. Experimental results have shown that these materials, mainly pond ash and concrete sludge, can effectively neutralize pH and reduce Mn concentrations by up to 83.26% and 79.12%, respectively. Similarly, Fe concentrations can be reduced by up to 80.76% and 74.05% using pond ash and concrete sludge, respectively. While these results are promising, future research should focus on characterizing the generated sludge to confirm the adsorption of ferrous and manganese ions onto the surface of the alternative neutralizers.
PEMBUATAN SUMUR RESAPAN AIR HUJAN DAN LUBANG RESAPAN BIOPORI DI DESA SUKOHARJO, PRINGSEWU Nurul Mawaddah; Resarizki Utami; Mutiara Fajar; Nabila Putriyandri Alifa; Fajriharish Nur Awan
Jurnal Pengabdian Pendidikan Masyarakat (JPPM) Vol 4 No 2 (2023): Jurnal Pengabdian Pendidikan Masyarakat Vol 4 No 2 (2023)
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH MUARA BUNGO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/jppm.v4i2.1258

Abstract

At the end of 2022, precisely in October-November 2022, Pringsewu Regency experienced the worst flood disaster in the last 12 years. As many as three pekon (villages) in Pringsewu Regency, Lampung, were flooded after being showered with heavy rain overnight. One of the villages affected by the floods is the Sukoharjo Village. As a result, for rice fields that have poor drainage channels, rainwater creates new problems, especially for rice farmers. too much water inundated crops. Socialization and demonstrations can be used to increase the knowledge of a group of respondents. Socialization and demonstrations regarding making infiltration wells and biopori infiltration holes have been carried out to provide information and knowledge to respondents regarding groundwater conservation issues, to get to know rainwater infiltration wells and biopori infiltration holes to reduce floods and landslides during the rainy season and as raw water reserves for activities people during the dry season. The method of implementing this service is a pre-test and post-test in the form of filling out questionnaires to respondents, namely residents. The results of the activity showed an increase in the percentage of residents' knowledge which increased from 64.29% to 86.43%.
Co-Authors Ahmad Daudsyah Imami Dion Awfa Edo Kharima Army Evi Eri Narita Fajriharish Nur Awan Muhammad Meiko Cahya Anugrah Mutiara Fajar Nabila Putriyandri Alifa Nasrul Putra Novriadi Nurul Mawaddah Rifka Noor Azizah Wisnu Prayogo