نتایج جستجو برای: tailing disposal

تعداد نتایج: 19837  

2015
Lingqing Wang Tao Liang

Rare earth mine tailing dumps are environmental hazards because tailing easily leaches and erodes by water and wind. To assess the influence of mine tailing on the geochemical behavior of rare earth elements (REEs) in soil, sixty-seven surface soil samples and three soil profile samples were collected from different locations near China's largest rare earth mine tailing. The total concentration...

2016
Frank Vandenbussche Elisabeth Mathijs David Lefebvre Kris De Clercq Steven Van Borm

Non-specific tail sequences are often added to the 5'-terminus of primers to improve the robustness and overall performance of diagnostic assays. Despite the widespread use of tailed primers, the underlying working mechanism is not well understood. To address this problem, we conducted a detailed in vitro and in silico analysis of the enhancing effect of primer tailing on 2 well-established foo...

Journal: :International Journal of Engineering and Management Research 2021

The purpose of this research work is to optimize the occupational health and safety protocol by increasing distancing mitigating physical contact prevent spread Covid-19, using QR catches identify personnel. Contrasting sanitary measures protect integrity personnel operations area Tailing Disposal System -Quellaveco project.
 For study database, factor analysis used as a multivalent statis...

Journal: :Tanzania Journal of Engeering and Technology 2023

This study aimed to determine levels of cyanide (CN) pollution in the soil and surface water at selected mining sites Mbeya region. A total (n = 124) samples were collected analyzed by spectrophotometry. The soil-based water-based Mwasenga, Ifumbo above permissible limits. was due poor disposal tailing from gold processing plants mismanagement wastewater. On other hand, Cyanide within allowable...

2013
Davide Zanetti Srdjan Capkun Ari Juels

RFID (Radio-Frequency IDentification) is a key emerging technology for supply-chain monitoring and detection of counterfeit and grey-market goods. The most prevalent RFID tags are, however, simply “wireless barcodes,” themselves vulnerable to cloning and counterfeiting. While continuous monitoring can, in principle, detect cloning attacks, real-world supply chains often contain significant blin...

2015
Liu Lang KI-IL Song Dezheng Lao Tae-Hyuk Kwon

Workability is a key performance criterion for mining cemented tailing backfill, which should be defined in terms of rheological parameters such as yield stress and plastic viscosity. Cemented tailing backfill is basically composed of mill tailings, Portland cement, or blended cement with supplementary cement material (fly ash and blast furnace slag) and water, among others, and it is important...

Changes in the tailing properties (increasing clay mineral content and fine particles) and poor operation of the dewatering systems have negative impacts on the Tailing Storage Facilities (TSF) of the Shahrbabak copper complex. The design solid concentration of the thickened tailings is 63 wt.% in the Shahrbabak paste plant but it is well below the design value right now (approx. 55 wt.%). The ...

The inevitable depletion of mineral resources, the constant deterioration of the geological and mining conditions for the development of mineral deposits and the restoration of raw materials from mining waste by recycling are all urgent problems we face today. The solution to this problem may ensure: a considerable extension of raw material source; decrease of investments in opening new deposit...

Journal: :Minerals 2021

Land reclamation is a common practice leading to the restoration of areas affected by industrial activity. Soil studies in reclaimed are very useful determine effectiveness works. The goal study was investigate soil properties, mineral composition, total concentrations Zn, Pb, Cd and As chemical forms these elements order assess success land abandoned mine tailing disposal site “Trzebionka” Zn-...

Journal: :Current research in agricultural sciences 2023

The disposal of tailings generated from mining activities poses environmental challenges due to their low fertility and limited suitability for plant growth. This study aimed investigate the potential cow manure application in improving organic-C content enhancing growth water spinach (Ipomoea reptans). experiment was laid out a randomized block design with five treatments replications. involve...

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