Results 21 to 30 of about 6,605 (261)

Research of leaching of disseminated copper-nickel ores in their interaction with mine waters [PDF]

Vestnik MGTU, 2017
A great amount of mine waste creates serious problems for economy and ecology in mining regions. Keeping of dumps and tailings storages requires huge capital costs and material inputs.
Svetlov A. V., Makarov D. V., Potapov S. S., Nekipelov D. A., Seleznev S. G., Masloboev V. A.   +5 more
doaj   +1 more source

Research progress on the treatment of acid coal mine drainage

工程科学学报
Acid coal mine drainage has emerged as one of the most challenging environmental problems in the coal industry because of its large output, wide pollution range, long duration, and unstable water quality and quantity.
Honghu TANG, Xiongxing ZHANG, Yingdi DONG, Yong ZENG, Bingjian LIU, Li WANG, Haisheng HAN   +6 more
doaj   +1 more source

Experimental study on the treatment of acid mine drainage containing heavy metals with domestic waste pyrolysis ash

Water Science and Technology, 2022
Acid mine drainage (AMD) is a special kind of acidic wastewater produced in the process of mining and utilization. In this study, AMD was treated using the adsorption method. Domestic waste was prepared by pyrolysis, and the resulting waste pyrolysis ash
Xiangdong Li, Yanwen Guo, Jieying Cai, Wei Bao   +3 more
doaj   +1 more source

Analysis on the influence of rainfall and mine water ratio against pH in East pit 3 West Banko coal mine

MATEC Web of Conferences, 2017
In the coal mining area, the pH of mine water is found tend to low and acids. In order to increase the pH, it is important to consider the treatment of acid mine drainage using lime, due the indicators of pollution.
Rochyani Neny, Ngudiantoro, Harris Helmi
doaj   +1 more source

Rock Formation Acid Mine Drainage in Epithermal Gold Mineralization, Pandeglang, Banten Province

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
Mine acid water is acidic water and contains iron and sulfate, which is formed under natural conditions when geological strata containing pyrites are exposed to an oxidizing atmosphere or environment.
Dudi Nasrudin Usman, Sri Widayati, Sriyanti Sriyanti, Era Setiawan   +3 more
doaj   +1 more source

Acid mine drainage mitigation: A review

Ingeniería Industrial, 2020
Acid mine drainage (AMD) or acid rock drainage (ARD) refers to the effluents from coal and metal mines. AMD is a common phenomenon which occurs naturally as a process of rock weathering, but is increased in large scale due to human activities such as ...
Daniel Lazo
doaj   +1 more source

Understanding the influence of stratification for mine water management: a comparative study

Scientific Reports
Managing mine water in the best possible way is of great importance and depends on various factors like environmental protection, regulatory compliance and human health.
Elke Mugova, Christian Wolkersdorfer
doaj   +1 more source

Evaluation of Quicklime Dose, Stirring Speed, and Reaction Time for Coal Mine Acid Water Treatment

Jurnal Ilmu Lingkungan
Background: If not properly managed, coal mining activities can lead to significant damage to the earth's surface. Acid water, often referred to as acid mine drainage, typically forms during both active and inactive mining operations.
Veza Azteria, Joko Santoso
doaj   +1 more source

Advances and Gaps in the Knowledge of Thermodynamics and Crystallography of Acid Mine Drainage Sulfate Minerals

CHIMIA, 2010
Acidic and metal-rich waters produced by sulfide decomposition at mining sites are termed acid mine drainage (AMD). They precipitate a number of minerals, very often sulfates.
Juraj Majzlan
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source