Results 71 to 80 of about 920,646 (300)

Separation and Extraction of Rhenium from Waste Acid via Selective Precipitation and Atmospheric Pressure Leaching

Separations
This study presents a combined process of sulfide precipitation followed by hydrogen peroxide leaching for rhenium recovery from copper smelting waste acid under ambient temperature and pressure. The process first removed copper through selective sulfide
Hancheng Mao, Shengdong Wang, Muyao Lu, Haibei Wang, Denggao Zhang   +4 more
doaj   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

Evaluation of the impact of various agricultural practices on nitrate leaching under the root zone of potato and sugar beet using the STICS soil–crop model [PDF]

, 2008
The quaternary aquifer of Vitoria-Gasteiz (Basque Country, Northern Spain) is characterised by a shallow water table mainly fed by drainage water, and thus constitutes a vulnerable zone in regards to nitrate pollution. Field studies were performed with a
Antigüedad, Iñaki, Sanchez-Perez, Jose-Miguel, Justes, Eric, Sánchez-Pérez, J.M., Martinez, Miren, Jégo, Guillaume, Launay, Marie, Justes, Eric,, Sanchez-Pérez, José Miguel, Justes, Eric, E.   +9 more
core   +1 more source

A selective recovery of zinc and manganese from the spent primary battery black mass as zinc hydroxide and manganese carbonate

Open Engineering
The major challenge in zinc–carbon battery recycling lies in achieving selective separation of zinc and manganese while producing high-purity materials suitable for advanced applications. This study aims to develop a selective hydrometallurgical approach
Yudha Cornelius Satria, Winard Naufal Atha, Sulistyowati Anggraini Putri, Arinawati Meidiana, Apriliyani Enni   +4 more
doaj   +1 more source

Monosodium Glutamate as Selective Lixiviant for Alkaline Leaching of Zinc and Copper from Electric Arc Furnace Dust

Metals, 2020
The efficacy of monosodium glutamate (MSG) as a lixiviant for the selective and sustainable leaching of zinc and copper from electric arc furnace dust was tested.
Erik Prasetyo, Corby Anderson, Fajar Nurjaman, Muhammad Al Muttaqii, Anton Sapto Handoko, Fathan Bahfie, Fika Rofiek Mufakhir   +6 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Self‐Assembled Hybrid Cell‐Enzyme Materials for Gas‐Powered Biocatalysis

Advanced Functional Materials, EarlyView.
Integrating living cells with programmable enzyme networks enables hybrid materials that convert gaseous feedstocks into chemical reducing power. These gas‐powered catalytic beads operate as modular, recyclable platforms for adaptive biocatalysis and sustainable synthesis.
Marius Stoeckle, Kersten S. Rabe, Christof M. Niemeyer   +2 more
wiley   +1 more source

Contribution of Dissolved Organic Carbon Leaching to the Annual Carbon Budget of a Dairy Farm [PDF]

, 2013
Soils are the largest terrestrial store of carbon (C) and changes in this store of C can impact on soil quality and atmospheric CO2 concentrations.
Chibnall, Emma Jayne
core  

Selective Leaching of Steelmaking Slag for Indirect CO2 Mineral Sequestration

, 2010
Indirect CO2 mineral sequestration, which could make CO2 fixate into precipitated calcium carbonate (PCC) of value-added products, is an important technology that is used to reduce greenhouse gas emissions economically.
Li, HQ, Zhang, Yi, Bao, Weijun, Li, Huiquan   +3 more
core   +1 more source

A Review of the Application of Oxalic Acid in Hydrometallurgical Processes

Separations
Conventional hydrometallurgical processes typically employ inorganic acids as leaching agents; however, these processes are frequently associated with significant environmental pollution and suffer from poor metal selectivity.
Muling Sheng, Zishuai Liu, Zhihui Zhao, Qianwen Li, Wenbin Liu, Heng Luo, Yancheng Lv   +6 more
doaj   +1 more source