Results 21 to 30 of about 234,076 (265)

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

Comparative analysis of recycling modes of power batteries based on extended producer-responsibility principle

open access: yesCircular Economy, 2022
To improve the effectiveness of recycling, echelon utilization, and recovery mechanism of waste power batteries (WPBs), 12 recycling modes were proposed based on extended producer-responsibility principle. By employing profit and sensitivity analyses, we
Shuyuan Chen   +3 more
doaj   +1 more source

Carbon black as an alternative cathode material for electrical energy recovery and transfer in a microbial battery

open access: yesScientific Reports, 2017
Rather than the conventional concept of viewing conductive carbon black (CB) to be chemically inert in microbial electrochemical cells (MECs), here we confirmed the redox activity of CB for its feasibility as an electron sink in the microbial battery (MB)
Xueqin Zhang   +8 more
doaj   +1 more source

Upgrading iron and removing phosphorus of high phosphorus oolitic iron ore by segregation roasting with calcium chloride and calcium hypochlorite [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2019
The iron-bearing ore, existing in the form of oolite, was mainly composed of hematite, limonite, daphnite, and collophane. The harmful element phosphorus content was 1.56%, belonging to high phosphorus ooliticiron ore in western Hubei.
Xiao J.   +7 more
doaj   +1 more source

Impact of technological innovation and regulation development on e-waste toxicity: a case study of waste mobile phones

open access: yesScientific Reports, 2018
Technology innovation has accelerated progress in Information and Communications Technology (ICT), especially in the mobile phones sector. Concurrently, local, national, and international governments are enforcing stricter regulations to protect natural ...
Yu Chen   +5 more
doaj   +1 more source

Kinetics of Iron Removal From Ti-Extraction Blast Furnace Slag by Chlorination Calcination

open access: yesOpen Chemistry, 2019
In this research, ammonium chloride was used to calcine Ti-extraction blast furnace slag (EBFS) with the aim of removing iron from it. The influences of calcination temperature, ammonium chloride to EBFS mass ratio and particle size on the rates of iron ...
He Siqi   +5 more
doaj   +1 more source

Determination of Some Heavy Metal Pollutants in Sediments of the Seybouse River in Annaba, Algeria

open access: yesAir, Soil and Water Research, 2012
This study was conducted in order to fight against pollution of the environment. The study concerns river sediment of the Seybouse River in northeastern Algeria.
Achour Louhi   +2 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Pretreatment as a Microplastics Generator during Household Biogenic Waste Treatment

open access: yesEngineering
Mechanical pretreatment is an indispensable process in biological treatment plants that remove plastics and other impurities from household biogenic waste (HBW).
Tian Hu   +6 more
doaj   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

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