Results 11 to 20 of about 326,195 (217)

A Test of Two Methods for Waste Rock Drainage Quality Prediction: Aqua Regia Extraction and Single-addition Net-acid Generation Test Leachate Analysis [PDF]

open access: yesMine Water and the Environment, 2021
AbstractThe mobility of contaminants from mine waste can be assessed using different extraction methods. Aqua regia (AR) extraction is the most commonly used method in Finland. Another method is the analysis of leachate from net acid generation (NAG) tests, which is primarily designed for acid production potential assessment.
Teemu Karlsson   +3 more
openaire   +4 more sources

The comparison of 7.5 and 15% hydrogen peroxide as oxidizing agent in static tests of acid mine drainage potential in Indonesia

open access: yesHeliyon, 2023
Static tests of acid mine drainage potential are an important part of mining water management. Net acid generation (NAG) test is widely used in Indonesian coal mines because of its convenience.
Muhammad Sonny Abfertiawan   +4 more
doaj   +1 more source

A Study of Residual Cyanides and Potential Stabilities in Tailings Storage Facility of Gold Mining Operation

open access: yesApplied Environmental Research, 2015
The study aimed to investigate residual cyanides and their potential stabilities in tailings from a gold processing plant deposited in the Tailings Storage Facility (TSF) of a gold mining site.
Suwanit Parinyachet   +1 more
doaj   +7 more sources

Suitability of static tests for acid rock drainage assessment of mine waste rock [PDF]

open access: yesBulletin of the Geological Society of Finland, 2010
In the present study, eight rock samples were analysed with a modified acid-base accounting (ABA) test and the corresponding net acid generation (NAG) test.
M.L. Räisänen   +2 more
doaj   +1 more source

Neutralization effect of slag on the acid rock drainage

open access: yesInternational Journal of Geo-Engineering, 2021
Aims/hypothesis Pohang Tertiary mudstone presents the issue of acid rock drainage. This study analyzed the capacity of a mixed slag (70% steel slag + 30% blast furnace slag) to neutralize Pohang Tertiary mudstone’s acid rock drainage.
Inwoo Baek   +3 more
doaj   +1 more source

A Comparison dataset on static test using two concentrations of hydrogen peroxide for prediction of acid mine drainage

open access: yesData in Brief, 2023
Acid mine drainage (AMD) is a serious problem in many coal and mineral mines. Over the past 50 years, many researchers have developed static tests that play an essential role in preventing AMD.
Muhammad Sonny Abfertiawan   +4 more
doaj   +1 more source

Geochemistry and Mineralogy of Coal Spoils: A Case Study of Takht Coal Mine, Golestan Province

open access: yesJournal of Economic Geology, 2023
This study investigates the geochemical and mineralogical characteristics of Takht Coal Spoils in Minoodasht, Iran. For this purpose, six representative spoil samples were collected.
Arian Yadollahi Zadeh   +1 more
doaj   +1 more source

Optimizing Energy Storage Participation in Emerging Power Markets [PDF]

open access: yes, 2015
The growing amount of intermittent renewables in power generation creates challenges for real-time matching of supply and demand in the power grid. Emerging ancillary power markets provide new incentives to consumers (e.g., electrical vehicles, data ...
Chen, Hao   +3 more
core   +4 more sources

Gold Sterile Ore Acid Generation Evaluation, San Juan Argentina [PDF]

open access: yes, 2014
One of the problems that mining represents in relation to the natural watercourses is the possible formation of what we call acid mine drainage, which consists in the emission or formation of water effluents of great acidity, usually rich in sulfate and ...
Bazan Brizuela, Vanesa Lucia   +2 more
core   +1 more source

Biohydrogen production from food waste: Influence of the inoculum-to-substrate ratio [PDF]

open access: yes, 2018
In this study, the influence of the inoculum-to-substrate ratio (ISR) on dark fermentative hydrogen production from food waste (FW) was evaluated. ISR values ranging from 0.05 to 0.25 g VSinoculum/g VSsubstrate were investigated by performing batch tests
Boni, Maria Rosaria   +7 more
core   +1 more source

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