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The prospect of saving copper conductor by using aluminum in China

Huang Chongqi

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 4-9

Abstract:

Saving copper by using aluminum is the international trend now, but theThere is a wide development space for the aluminum alloy conductors using for overhead line.There is a little development for application of copper clad aluminum conductors and the related standardsNow we also expect to find good technic economic efficient means to separate the copper and aluminumThere is a substantial progress of saving copper by using aluminum on airplanes.

Keywords： conductor     using aluminum to save copper     prospect    

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Mechanical behavior and semiempirical force model of aerospace aluminum alloy milling using nano biological

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0720-4

Abstract: Aerospace aluminum alloy is the most used structural material for rockets, aircraft, spacecraft, andminimal quantity lubrication have become the bottleneck of lubrication and heat dissipation of aerospace aluminum

Keywords： milling     force     nanofluid minimum quantity lubrication     aerospace aluminum alloy     nano biological lubricant    

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Exploitation and Utilization Status and Safe Supply Strategy of Copper, Aluminum, Lead, and Zinc Resources

Sun Chuanyao , Song Zhenguo , Zhu Yangge , Wu Xiqun

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 133-139 doi: 10.15302/J-SSCAE-2019.01.019

Abstract:

As important raw materials for national economic development, copper(Cu), aluminum (Al), lead (Pb), and zinc (Zn) are the most consumed non-ferrous metals.

Keywords： mineral resources     non-ferrous metal     safe supply     copper，aluminum，lead，and zinc    

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Characterization of interaction between different adsorbents and copper by simulation experiments using

Yan ZHANG,Yuan ZHANG,Tao YU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 510-518 doi: 10.1007/s11783-013-0588-y

Abstract: different types of organic matters (OMs) for Cu was quantitatively studied by simulation experiments usingThe free Cu was measured with ion selective electrode (ISE) and complex capacity was calculated using

Keywords： interaction     dissolved organic matters     sediment     sorption     desorption     Taihu Lake    

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A critical review on the recycling of copper and precious metals from waste printed circuit boards using

Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0995-6

Abstract: Currently, increasing amounts of end-of-life (EoL) electronic products are being generated due to their reduced life spans and the unavailability of suitable recycling technologies. In particular, waste printed circuit boards (PCBs) have become of global concern with regard to environmental issues because of their high metal and toxic material contents, which are pollutants. There are many environmental threats owed to the disposal of electronic waste; off-gasses, such as dioxins, furans, polybrominated organic pollutants, and polycyclic aromatic hydrocarbons, can be generated during thermal treatments, which can cause serious health problems if effective off-gas cleaning systems are not developed and improved. Moreover, heavy metals will dissolve, and release into the ground water from the landfill sites. Such waste PCBs contain precious metals which are of monetary value. Therefore, it is beneficial to recover the metal content and protect the environment from pollution. Hydrometallurgy is a successful technique used worldwide for the recovery of precious metals (especially gold and silver) from ores, concentrates, and waste materials. It is generally preferred over other methods because it can offer high recovery rates at a relatively low cost. This article reviews the recent trends and developments with regard to the recycling of precious metals from waste PCBs through hydrometallurgical techniques, such as leaching and recovery.

Keywords： Waste PCBs     Precious metals     Hydrometallurgy     Recycling     Leaching     Recovery    

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Removal of copper ions from aqueous solution by adsorption using LABORATORIES-modified bentonite (organo-bentonite

Sandy, Velycia MARAMIS, Alfin KURNIAWAN, Aning AYUCITRA, Jaka SUNARSO, Suryadi ISMADJI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 58-66 doi: 10.1007/s11705-011-1160-6

Abstract: Equilibrium, kinetic and thermodynamic aspects of the adsorption of copper ions from an aqueous solutionusing linear alkylbenzene sulfonate (LABORATORIES) modified bentonite (organo-bentonite) are reportedThe Sips model had the best fit for the adsorption of copper ions onto organo-bentonite.Thermodynamically, the adsorption of copper ions occurs via chemisorption and the process is endothermic

Keywords： heavy metal     copper     adsorption     organo-bentonite     temperature dependent    

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Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 308-316 doi: 10.1007/s11705-016-1587-x

Abstract: Leaching selectivity during metal recovery from complex electronic waste using a hydrochemical processIt was recently improved by using ammonia-based leaching process, specifically for electronic waste enrichedwith copper.This research proposes electrodeposition as the subsequent approach to effectively recover copper fromThe results have shown that electrochemical recovery of copper from ammonia-based solution under the

Keywords： copper recovery     electronic waste     end-of-life products     selective leaching     electrodeposition    

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disinfection of Escherichia coli and bacteriophage MS2 in water usinga copper and silver loaded titanium dioxide nanowire membrane

Guiying RAO, Kristen S. BRASTAD, Qianyi ZHANG, Rebecca ROBINSON, Zhen HE, Ying LI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0854-x

Abstract: In this study, a new material with a novel structure, silver and copper loaded TiO nanowire membraneperformance was attributed to the synergies of enhanced membrane photoactivity by loading silver and copperon the membrane and the synergistic effect between the free silver and copper ions in water.less than 10 ppb in the water effluent, far below the US EPA maximum contaminant level for silver and copper

Keywords： Photo-activated disinfection     Titanium dioxide     Nanowire membrane     Silver     Copper    

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How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?

D. Nathaniel MULCAHY, David L. MULCAHY

Frontiers in Energy 2018, Volume 12, Issue 3,   Pages 344-352 doi: 10.1007/s11708-017-0498-y

Abstract:

To solve a problem, three things are necessary: awareness, means, and will. The 2015 COP21 Paris accord was a masterful, perhaps even world-saving, diplomatic advance toward making the world aware of climate change. Some of that success may have been because publications from the IPCC and the National Academy of Science were made available, on line, as prepublication offerings, in order to be widely viewed before the Paris Climate Conference. This provided diplomats and negotiators with the latest information about climate change, its nearness in time, its consequences, and how well current mitigation technologies can succeed. Whatever the reasons, the Paris Climate Conference, was a success. Leaders of 195 nations agreed that climate change is a real and present danger to life as is known to all. This important understanding was accomplished despite the presentation of well established scientific facts which, without very diplomatic handling, could easily have evoked overwhelming political opposition to an agreement and thus another COP failure. In this paper, the fact that how some scientific truths, written specifically to be overlooked, were presented in order to prepare COP21 participants for the conference is explained. Besides, the effectiveness and efficiency of currently favored mitigation policies, the extent of ongoing progress to better ones, and finally, how a new appreciation of climate change consequences can strengthen the will of nation states and industries to work toward solutions are evaluated.

Keywords： COP21     Paris     climate     agreement     offsets     mitigation     IPCC    

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kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment using

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1463-x

Abstract:

• Lanthanum modified bentonite (LMB) can effectively absorb phosphorus (P).

Keywords： Sediment     Eutrophication     Thin-layer capping     Phosphorus     Nitrogen     Aluminum-based P-inactivation agent    

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Engineer Dinner—Save the Environment?

Chris Palmer

Engineering 2020, Volume 6, Issue 3,   Pages 213-215 doi: 10.1016/j.eng.2020.01.002

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Using loose nanofiltration membrane for lake water treatment: A pilot study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1362-6

Abstract:

• A pilot study was conducted for drinking water treatment using loose

Keywords： Nanofiltration     Drinking water     Membrane fouling     Aluminum carryover     Chemical cleaning    

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Numerical analysis of aluminum alloy reticulated shells with gusset joints under fire conditions

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 448-466 doi: 10.1007/s11709-022-0910-5

Abstract: In this study, a numerical analysis was conducted on aluminum alloy reticulated shells (AARSs) with gusset

Keywords： aluminum alloy reticulated shell     gusset joint     numerical analysis     fire resistance    

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Enhanced hydrogen production from aqueous methanol solution using TiO

Paramasivan GOMATHISANKAR,Tomoko NODA,Hideyuki KATSUMATA,Tohru SUZUKI,Satoshi KANECO

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 197-202 doi: 10.1007/s11705-014-1417-y

Abstract: The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide (TiO ) wasinvestigated in the addition of metal particles including copper, lead, tin, and zinc.The results show that only the addition of copper particles enhances the hydrogen production.The copper usage and reaction temperature were further optimized for TiO /Cu photocatalyts.Under the optimal conditions, the hydrogen production using TiO /Cu as photocatalysts is approximately

Keywords： photocatalytic hydrogen generation     methanol     copper particles     TiO2     metal-semiconductor interface    

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Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1065-1071 doi: 10.1007/s11705-019-1909-x

Abstract: oxidation (MAO) is an efficient approach to improve the hardness, wear resistance, and other properties of aluminummorphologies and phase compositions of the coatings produced with different electrolytes were investigated usingThe roughness and thickness of the coatings were measured using a pocket roughness meter and an eddy-current

Keywords： aluminum alloy     micro-arc oxidation     coating     electrolyte concentration     tribological performance    

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Title Author Date Type Operation

The prospect of saving copper conductor by using aluminum in China

Huang Chongqi

Journal Article

Mechanical behavior and semiempirical force model of aerospace aluminum alloy milling using nano biological

Journal Article

Exploitation and Utilization Status and Safe Supply Strategy of Copper, Aluminum, Lead, and Zinc Resources

Sun Chuanyao , Song Zhenguo , Zhu Yangge , Wu Xiqun

Journal Article

Characterization of interaction between different adsorbents and copper by simulation experiments using

Yan ZHANG,Yuan ZHANG,Tao YU

Journal Article

A critical review on the recycling of copper and precious metals from waste printed circuit boards using

Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang

Journal Article

Removal of copper ions from aqueous solution by adsorption using LABORATORIES-modified bentonite (organo-bentonite

Sandy, Velycia MARAMIS, Alfin KURNIAWAN, Aning AYUCITRA, Jaka SUNARSO, Suryadi ISMADJI

Journal Article

Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Journal Article

disinfection of Escherichia coli and bacteriophage MS2 in water usinga copper and silver loaded titanium dioxide nanowire membrane

Guiying RAO, Kristen S. BRASTAD, Qianyi ZHANG, Rebecca ROBINSON, Zhen HE, Ying LI

Journal Article

How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?

D. Nathaniel MULCAHY, David L. MULCAHY

Journal Article

kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment using

Journal Article

Engineer Dinner—Save the Environment?

Chris Palmer

Journal Article

Using loose nanofiltration membrane for lake water treatment: A pilot study

Journal Article

Numerical analysis of aluminum alloy reticulated shells with gusset joints under fire conditions

Journal Article

Enhanced hydrogen production from aqueous methanol solution using TiO

Paramasivan GOMATHISANKAR,Tomoko NODA,Hideyuki KATSUMATA,Tohru SUZUKI,Satoshi KANECO

Journal Article

Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Journal Article