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All Journal International Journal of Public Health Science (IJPHS) Journal of Degraded and Mining Lands Management Sustainable Environmental and Optimizing Industry Journal Proceeding Biology Education Conference
Didik Triwibowo
PT Adaro Indonesia, Hauling Road Km 73 Wara, Tanjung, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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Jenis Burung di Area Reklamasi PT Adaro Indonesia yang Direvegetasi Tahun 1996/1997 Soendjoto, Mochamad Arief; Riefani, Maulana Khalid; Triwibowo, Didik; Wahyudi, Fazlul
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 13, No 1 (2016): Prosiding Seminar Nasional XII Biologi
Publisher : Universitas Sebelas Maret

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Abstract

The species richness of birds had been documented in an observation period, but this preliminary data was inadequate.Additional data were needed so the result could be utilized as a standard to measure the success of reclamation and revegetation. The aim of the research was to update the species richness of birds inthe ex-coal-mining area reclaimed and revegetatedin 1996/1997 andto compare bird species among observation periods (PP).The birds were observed in 3 PPsthrough observation plot andwalking survey in the habitat type of acasia forest (HA), sengon forest (HS), trembesi forest (HT), mixed forest (HC), shrub - bush (SB), open land – grasses (LTPR), andwaters (PA). Bird status was categorized in accordance with valid regulations. Overall 76 bird species were found, but the number fluctuated in every PP. There were47 species in PP-1,62 in PP-2, and61 in PP-3. Of 76 species, 16 speciesare protected by PP 7/1999; 2 speciesare vulnerable, 3 are near threatened, andothers are least-concern species according to IUCN; 5 speciesare in Appendice II andothers are non-appendiceaccording to CITES; and36speciesare likely to be residents.Species andthe number of birds in the revegetated area of 1996/1997 were not as much as those of the primary (undisturbed) forest, but could be used as a minimumstandard for the other reclamation and revegetationareasin the concession of PT Adaro Indonesia 
MINE WATER MANAGEMENT IN THE COAL MINING PROCESS Pranata, Andrian; Sari, Novi Kartika; Tahir, Tarmizi; Fahmi, Achmad Gus; Habibie, Hanifullah; Choiron, Dodik; Triwibowo, Didik
Sustainable Environmental and Optimizing Industry Journal Vol 6, No 1 (2024)
Publisher : Universitas Sahid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36441/seoi.v6i1.2285

Abstract

The open mining method has the potential for the formation of mine water. Mine water is characterized by a high degree of acidity which affects the life of organisms and the quality of the environment indirectly or directly, therefore it needs to be managed. This study examines mine water management at PT Adaro Indonesia. The methods used in the research were field studies and laboratory experiments. Grab sampling is used to take water samples, with the test parameters being pH, Fe and Mn metals and total suspended solid (TSS). Data analysis was carried out quantitatively and descriptively. The mine water management used is in the form of a settling pond. The settling pond consists of several compartments, namely sedimentation pond, safety pond, treatment pond and mud pond. The quality of mine water management through a series of settling ponds obtained changes in pH to 6.07, Fe metal 0.0465 mg/l, Mn metal 1.3513, and TSS 35 mg/l with an efficiency of more than 50%. The quality of mine water produced after going through management has met the established regulations, namely Decree of the Minister of Environment and Forestry No. 1347/MENLHK/SETJEN/PLA.4/12/2022.
Post-mined reclamation condition assessment by Normalized Difference Vegetation Index (NDVI) Triwibowo, Didik; Elma, Muthia; Suhartono, Eko; Riduan, Rony
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.114.6165

Abstract

Post-mined reclamation is an essential phase in coal mining operations, ensuring that the ex-mining area can function again according to its intended purpose in the future. This study aimed to elucidate the differences in planting years of post-mined reclamation at a coal mine in the Paringin area, South Kalimantan, Indonesia, and compared them to undisturbed areas for the years 2003 and 2023. NDVI was used for land cover analysis based on the Ministry of Energy and Mineral Resource Regulation, and the ultimate criterion for 100% success in post-mined reclamation is vegetation canopy coverage. The NDVI results showed an improvement in NDVI values for the post-mined reclamation area from 2003 to 2023, indicating an improvement in land cover due to the revegetation process. In 2023, the NDVI results of the post-mined reclamation for eight and twenty years of tree planting showed NDVI values of 0.6-0.7 (moderate vegetation). However, the results of field observations of the twenty-year post-mined reclamation tree condition indicate the non-survival of fast-growing tree species, such as Albizia chinensis. The composition of fast-growing and local tree species, with a minimum proportion of 60:40, and systematic tree distribution across the post-mined reclamation area are required to maintain canopy coverage of the post-mined reclamation area in the long term. Fast-growing tree species, as pioneers, have short to medium life periods. Therefore, the ultimate criterion for 100% success in post-mined reclamation for canopy coverage should be based on local tree species, serving as the basis for releasing the reclamation bond.
Hydrological modeling of reclaimed catchment area and pit lake for the management of degraded post-mining land Triwibowo, Didik; Elma, Muthia; Suhartono, Eko; Riduan, Rony; Noor, Ihsan
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.7901

Abstract

Open-pit coal mining temporarily alters natural landscapes, resulting in degraded overburden dumps and the formation of pit lakes. In Indonesia, post-mining landforms must undergo reclamation to support sustainable land use. This study evaluates the hydrological capacity of a reclaimed area functioning as the catchment for the Paringin pit lake by applying two hydrological models: the National Rural Electric Cooperative Association (NRECA) and the F.J. Mock model. Using an integrated approach that combines remote sensing, GIS-based spatial analysis, and field-based observations—including meteorological data, real-time inflow monitoring using aerial sensors, and Total Suspended Solids (TSS) measurement—both models successfully simulated monthly inflow and showed good agreement with field observations. Under a tropical climate with over 3,000 mm of annual rainfall and evaporation exceeding 1,000 mm, the catchment-to-lake area ratio of 6.4:1 was found to support sustainable inflow volumes ranging from 0.078 to 0.103 m³/s throughout the year. Although the estimated erosion rate of 3.51 t/ha/year remains within acceptable limits, average TSS levels (89.13 mg/L) exceeded the regulatory threshold of 50 mg/L for raw water supply and aquaculture use. The results affirm the effectiveness of the NRECA and F.J. Mock model in supporting post-mining water management where monitoring data are scarce. This study contributes to the growing need for hydrological connectivity assessment in post-mining landscapes and supports improved planning and sustainable management of pit lakes as integrated components of degraded post-mining land.
Analysis of risk factors associated with subjective fatigue symptoms among coal mining vehicle operators Modjo, Robiana; Sulistiyorini, Desy; Rizkianto, Eko; Susilowati, Indri Hapsari; Triwibowo, Didik
International Journal of Public Health Science (IJPHS) Vol 14, No 4: December 2025
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijphs.v14i4.26601

Abstract

Coal mining vehicle operators have negative consequences with health effects such as fatigue. The aim of the study was to analyze the risk factors related to subjective fatigue among coal mining operators. Specifically, it seeks to examine the relationship between work shift, working period, sleep quantity, sleep quality, and personal characteristics, such as age, neck circumference, and body mass index. Data were collected from a coal mining site in South Kalimantan, Indonesia in 2022 with primary questionnaires. A total of 440 workers who worked in the mining and hauling area for at least one year were recruited in this study. This was a cross-sectional study. Quantitative data were obtained to describe the level of subjective fatigue and to analyze the risk factors associated with the work fatigue in coal mining vehicle operators. The fatigue was associated with obesity (OR:1.777, 95% CI:1.0067-2.960), overweight (OR:1.783, 95% CI:1.046-3.040), neck circumference (OR:1.513, 95% CI:1.0983-2.329), sleep quality (OR:4.597, 95% CI:2.762-7.650), and working period (OR:0.545, 95% CI:10.360-0.825) (p<0.05 for all). However, fatigue did not significantly affect from sleep quantity and work shift. Ensuring individual health is essential for preserving the opportunity to sleep and allowing the body to recover from fatigue.
Geochemical stability of reclaimed coal mine waste dump: Implications for pit lake water quality and post-mining landscape utilization Triwibowo, Didik; Elma, Muthia; Suhartono, Eko; Riduan, Rony; Noor, Ihsan
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.2026.131.9059

Abstract

Open-pit coal mining operations require the removal of overburden and the creation of waste dump piles. Waste dump management must consider the classification of the material, specifically whether it is Potentially Acid-Forming (PAF) or Non-Acid-Forming (NAF), based on its geochemical characteristics. This paper examined the geochemical stability of a 10-year-old coal mining overburden waste dump in Paringin, South Kalimantan, which has since been revegetated. Samples were taken from the upstream and downstream sections of the catchment area, based on the NAF homogeneous type of overburden moved to the waste dump area during the reclamation process. This was achieved by creating a soil profile to a depth of 120 cm, resulting in nine samples for each soil profile. The analysis results in the upstream and downstream sections suggested the capacity to neutralize acid. The conclusion was that the overall waste dump has stable geochemical conditions with lower acid mine drainage generation, as represented by a negative NAPP, due to the presence of adequate ANC to neutralize acidity from the Sulfur content in the upstream section and low total Sulfur in the downstream section. The geochemical stability of the waste dump, which is NAF, has a significant influence on the water quality of Paringin Pit Lake, where all surface water from the catchment area flows. These results indicated that no AMD generation occurs in the water of Paringin Pit Lake. With no potency for AMD generation, the overall post-mining landscape could have potential future utilization.
Examining the several vegetation indices values to estimate carbon stock at the mining reclamation area of PT. Adaro Indonesia, South Kalimantan Rachmanadi, Dony; Nugraha, Luthfan Meilana; Choiron, Dodik; Riadhah, Mekka; Husin, Rusdi; Triwibowo, Didik; Ajiddinnor, Ajiddinnor
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.2026.131.9427

Abstract

Revegetation of coal mine reclamation areas contributes to environmental improvement by sequestering carbon through vegetation. This study aimed to estimate carbon stocks in reclaimed and post-mining areas of PT Adaro Indonesia using various vegetation indices to assess the areas' contribution to carbon sequestration and identify the most effective estimation method. Six vegetation indices—NDVI, RVI, SAVI, GNDVI, RDVI, and IPVI—were derived from drone-based multispectral imagery and combined with field sampling for enhanced accuracy. Carbon stock was calculated based on biomass, which correlates with tree size and other observable carbon pools. The results showed that, although the Tutupan site had lower vegetation diversity, it stored more carbon than the Paringin site. Among the indices tested, NDVI produced the most robust estimation model, demonstrating a high correlation and low standard error, indicating its strong predictive model for assessing carbon stocks in reclaimed mining lands.
Co-Authors Ajiddinnor, Ajiddinnor Choiron, Dodik Desy Sulistiyorini Dony Rachmanadi, Dony Eko Suhartono Fahmi, Achmad Gus Habibie, Hanifullah Husin, Rusdi Indri Hapsari Susilowati Maulana Khalid Riefani Mochamad Arief Soendjoto Muthia Elma Noor, Ihsan Novi Kartika Sari Nugraha, Luthfan Meilana Pranata, Andrian Riadhah, Mekka Rizkianto, Eko Robiana Modjo Rony Riduan Tahir, Tarmizi Wahyudi, Fazlul