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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Science and Environmental Journals for Postgraduate
Ahmad Ikhsan
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics Social Sciences

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Identification of Hazardous and Toxic Waste Characterization in the Mining Activities of PT Semen Padang Armando Yosephin Butar Butar; Ahmad Ikhsan; Abdul Razak; Linda Handayuni; Elsa Yuniarti
Science and Environmental Journal for Postgraduate Vol 5 No 2 (2023): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Pascasarjana, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v5i2.161

Abstract

Mining business activities in addition to producing mineral and coal production, also produce solid and liquid hazardous and toxic waste materials that have the potential to pollute the environment and can reduce the quality of human health and other living things mining. PT Semen Padang as the holder of a Production Operation Mining Business Permit (IUP OP), in addition to producing mining commodities in the form of limestone, silica, and clay, also has the potential to produce hazardous and toxic waste materials from mining activities, especially from the results of activities in mining workshops, both solid waste and liquid waste. For this reason, it is necessary to properly manage hazardous and toxic waste materials. PT Semen Padang has now carried out hazardous and toxic waste disposal by temporarily storing the hazardous and toxic waste it produces which is stored in a temporary storage area for hazardous and toxic waste materials.
Controlling Noise Levels on the Hearing Health of Mining Workers in the Crushing Plant Area Ahmad Ikhsan; Mulya Gusman; Eri Barlian; Nurhasan Syah; Muhamad Sholichin
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10624

Abstract

The mining industry, especially in the crushing plant area, faces serious problems related to noise that can reach more than 85 dB(A). Noise exposure for 8 working hours is at risk of causing temporary or permanent hearing loss (NIHL), which is a common occupational disease found in crushing plant workers. The type of research used in this study is descriptive analytical with a cross-sectional approach. Data collection techniques were carried out by measuring noise levels in the Crushing Plant area and distributing questionnaires to obtain data on the hearing health of mining workers. The location of this study was at CV. Tekad Jaya. The results of the noise level study at CV. Tekad Jaya showed an alarming situation, where 50% of the 14 measurement points exceeded the threshold of 85 dB, with a peak of 96.86 dB at point Std 10. The health impacts were clearly visible with 46.2% of workers experiencing headaches and 61.5% having difficulty communicating, even though the majority had used PPE. The combination of distance and vegetation has proven effective in reducing noise up to 76 dBA at a distance of 95 meters. The metal plate enclosure system showed positive results, reducing noise levels to 83 dBA inside and 67 dBA outside the building. Recommended control strategies include a zoning system with double protection, worker rotation, and health monitoring for areas >85 dBA, and a preventive approach for zones <85 dBA.
Co-Authors Abdul Razak Armando Yosephin Butar Butar Elsa Yuniarti Eri Barlian Handayuni, Linda Muhamad Sholichin Mulya Gusman Nurhasan Syah