Pengaruh Penggunaan Fly Ash dan Bottom Ash sebagai Cover dalam Pencegahan Pembentukan Air Asam Tambang Menggunakan Metode Free Draining Column Leach Test

Farhan, Muhammad; Nugraha, Candra

doi:10.26760/jrh.v5i2.136-149

Cited by 3 publications

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“…According to Farhan & Nugraha (2021), fly ash and bottom ash have different textures when the control process occurs [21]. In fly ash, there is a crack that makes the texture a little harder.…”

Section: Resultsmentioning

confidence: 99%

Comparisonal Analysis of Fly Ash (Case Study at Pltu Port Ratu)

Ismail¹,

Rozandi

Purwanto

et al. 2020

IJEAT

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Fly ash can include toxins from high levels of bottom ash in some circumstances, such as burning of solid waste to generate power (resource recovery facilities or waste-to-energy conversion), and combining fly ash and bottom ash together delivers corresponding quantities of contaminants. Under some conditions, fly ash can be classified as non-hazardous waste, but if it is not blended, it can be classified as hazardous waste. The goal of this research was to find out about the differences between fly and bottom ash, as well as the influence of fly ash on bottom ash in terms of avoiding abrasion. In addition, the study's goal was to see how fly ash affected coconut fiber's resistance to abrasion. This study employed a quantitative technique in which the researcher used primary data sources such as questionnaires and observations, as well as secondary data sources such as prior studies. The findings revealed that fly ash had no effect on bottom ash in terms of avoiding abrasion. Furthermore, it is well known that neither fly ash nor bottom ash are effective against coconut fiber. Fly ash has a coarser texture than bottom ash, according to the findings. The regression test revealed that there was no difference between fly ash and bottom ash, as well as coconut coir, in terms of reducing abrasion

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Section: Resultsmentioning

confidence: 99%

Comparisonal Analysis of Fly Ash (Case Study at Pltu Port Ratu)

Ismail¹,

Rozandi

Purwanto

et al. 2020

IJEAT

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Co-disposal as an alternative method for waste rock and tailings management–a review of geochemical aspects

Deni,

Afandi,

Sinamo

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Gold mining and processing activities produce at least two materials with adverse impacts on the environment: waste rock and tailings. Waste rock is generally disposed of in a waste rock dump (WRD) or in-pit backfill, while tailings are disposed to facilities such as landfill, tailings dam, or in-pit backfill. This separation is a common practice that requires a large area and specific technical considerations of respective materials and locations. Geochemically, waste rock can be potentially acid forming (PAF) and produce acid mine drainage, while tailings geotechnically have low stability due to the very fine particles. Combining these two materials in one placement location, known as co-disposal, is expected to benefits the geochemical and geotechnical aspects. The present research aims to design a geochemically-safe co-disposal of waste rock and tailings. Field kinetic geochemical tests were carried out using a 200-liter barrel in an open space area with different co-disposal compositions and treatments to identify the leachate and surface water quality. The results show that co-disposal with a 2:1 ratio of waste rock to tailings composition with the addition of lime sand of 15 kg/ton of tailings and compaction process gives the best results on leachate water quality under the natural condition during the test. This series of tests concluded to determine geochemical factors in co-disposal quality, namely pH value of tailings, lime dosage, the quality and exposure period of the waste rock, and the compaction process of the co-disposal layers.

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Political Shift Law Settlement of Fly Ash and Bottom Ash (Faba) Coal Based on Ecological Justice

Hartiwiningsih,

Pratiwi,

Parwitasari

2024

J. of Law and Sust. Develop.

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Purpose: This research aims to gain a comprehension understading on the factors causing the shift in political law regulation of fly ash and bottom ash (FABA) coal waste from hazardous and toxic waste (B3) to non-B3 status and provide a solution to the regulatory model for coal FABA based on ecological justice. Theoretical framework: This study also anchors from environmental justice theories known as “political ecology” from the perspective of “procedural justice” and “distributive justice”. Method: This qualitative research was approached as socio-legal research specifications. Miles et al.’s (2014) qualitative data analysis process was employed to analyze the data. Result and conclusion: The research results show that the political shift in the legal regulation of FABA should be based on ecological justice. The causal factor, the formation of law, is influenced by political and economic factors. While economic factors remain the dominant basis in establishing Government Regulation Number 22 of 2021, the environment should also be the consideration. Most of the construction of the regulation has not been based on the precautionary principle, non-regression, ecological justice, Pancasila justice, certainty, benefit, legal morality, and international agreements. Practical implication: This study contributes that the implementation of environmental protection and management needs to be reconstructed based on provisions, principles, and principles in forming arrangements such as the precautionary principle, the precautionary principle, the non-regression principle, the ecological justice principle, national justice [Pancasila], certainty, expediency, legal morality, and international agreements, to produce regulations in the environmental sector based on ecological justice.

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Pengaruh Penggunaan Fly Ash dan Bottom Ash sebagai Cover dalam Pencegahan Pembentukan Air Asam Tambang Menggunakan Metode Free Draining Column Leach Test

Cited by 3 publications

References 0 publications

Comparisonal Analysis of Fly Ash (Case Study at Pltu Port Ratu)

Comparisonal Analysis of Fly Ash (Case Study at Pltu Port Ratu)

Co-disposal as an alternative method for waste rock and tailings management–a review of geochemical aspects

Political Shift Law Settlement of Fly Ash and Bottom Ash (Faba) Coal Based on Ecological Justice

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