Results 21 to 30 of about 70,169 (261)

Study on Adding Ammonium Hydrogen Fluoride to Improve Manganese Leaching Efficiency of Ammonia Leaching Low-Grade Rhodochrosite

open access: yesMetals, 2021
The ammonia leaching method for treating low-grade rhodochrosite has the advantages of a good impurity removal effect and low environmental pollution. In this paper, aiming at the low leaching efficiency of low-grade rhodochrosite treated by the ammonia ...
Peng Yang   +4 more
doaj   +1 more source

Controlling reactions during heavy metal leaching from municipal solid waste incineration fly ash [PDF]

open access: yesJournal of the Serbian Chemical Society, 2023
This research aimed to characterize the physical and chemical properties of municipal solid waste (MSW) incineration fly ash, as well as to investigate the leaching of heavy metals during toxicity characteristics leaching procedure (TCLP) process.
Chen Weifang   +4 more
doaj   +1 more source

Throughput Analysis of WM-LEACH, LEACH, MH- LEACH and V-LEACH Protocol: A Simulation Based Approach

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
This paper provides a passing description for some of routing protocols like LEACH, WM-LEACH, MH-LEACH and V-LEACH Protocol in Wireless Sensor Network (WSN) also a comparison study of these protocols based on one of performance matrices as throughput. Addition to this an attempt is done to calculate their throughput.
Mahmuddin, Massudi   +2 more
openaire   +2 more sources

Treatment of copper-containing leaching residue by sulfation roasting followed by acid/water leaching

open access: yesMongolian Journal of Chemistry, 2023
This research investigates the extraction of copper from copper-containing leaching residue, which includes 33.45% of copper, 14.14% of iron, 23.87% of sulfur and trace amounts of silver and other elements.
Nyamdelger Shirchinnamjil   +6 more
doaj   +1 more source

Performance Analysis of LEACH-GA over LEACH and LEACH-C in WSN

open access: yesProcedia Computer Science, 2018
Abstract A wireless sensor network (WSN) is a collection of sensor nodes that has an ability to support Sensing, Signal processing, Embedded Computing, Communications and Connectivity for data processing and transmit the information to far located sink nodes through intermediate nodes with the help of energy source namely batteries.
P. Sivakumar, M. Radhika
openaire   +1 more source

Microwave-assisted and regular leaching of germanium from the germanium-rich lignite ash

open access: yesGreen Processing and Synthesis, 2018
Demand for germanium (Ge) is rapidly growing in recent years in various fields including semiconductors, aerospace, and solar cells. However, the Ge resources are very limited in the world.
Chen Yuqian   +7 more
doaj   +1 more source

Effects of Ammonium Salts on Rare Earth Leaching Process of Weathered Crust Elution-Deposited Rare Earth Ores

open access: yesMetals, 2023
In order to reveal the influence of ammonium salts on the rare earth leaching process of weathered crust elution-deposited rare earth ores, ammonium acetate, ammonium chloride, and ammonium sulfate were used as leaching agents.
Zhenyue Zhang   +5 more
doaj   +1 more source

Metal leaching test of commercially available faucets in the Japanese market in 2016–2020

open access: yesJournal of Water and Health, 2022
In this study, metal leaching was investigated in commercially available faucets in Japan to clarify their compliance to Japanese regulations. We purchased 37 faucets from the market and analyzed the leaching of cadmium, mercury, selenium, lead (Pb ...
Taro Miyoshi   +4 more
doaj   +1 more source

Hydrometallurgy leaching of manganese from electrolytic manganese anode slime using hydrogen peroxide as reducing agent

open access: yes工程科学学报, 2023
Manganese is one of the important strategic resources in China, and there is a saying that “no manganese, no steel”. In 2020, China’s output of electrolytic metal manganese was 1501300 tons, accounting for 96.5% of the global output.
Jun-jie ZHAO   +5 more
doaj   +1 more source

Optimization of groundwater contamination control in decommissioned acid in-situ leach uranium mines

open access: yesNuclear Engineering and Technology
Upon decommissioned acid in-situ leaching (ISL) uranium mining sites, contaminants (e.g. U(VI), SO42−) tend to migrate downstream under natural groundwater flow, posing significant risks to groundwater quality.
Genmao Zhou   +8 more
doaj   +1 more source

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