Results 11 to 20 of about 246,005 (267)

Preparation and Crystallization of Magnetic Glass‐Ceramics from the Residues after Sulfur Release and Iron Recovery from Copper Ore Tailings with Varied CaO Content

open access: yesChemistryOpen, 2021
To comprehensively reuse copper ore tailings (COT), the fabrication of glass‐ceramics by the direct sintering method was investigated, where the residues after sulfur release and iron recovery from copper ore tailings were used as raw materials.
Bing Luo   +3 more
doaj   +1 more source

Preparation of superfine and semi-hydrated flue gas desulfurization gypsum powder by a superheated steam powdered jet mill and its application to produce cement pastes

open access: yesCase Studies in Construction Materials, 2022
The low reactivity, high moisture content, and gap-graded particle size distribution of flue gas desulfurization (FGD) gypsum clearly restrict its large-scale application, particularly for cement production.
Zhonghui Xu   +8 more
doaj   +1 more source

Phytoremediation of electroplating wastewater by vetiver grass (Chrysopogon zizanoides L.)

open access: yesScientific Reports, 2021
The electroplating industry generates wastewater containing a variety of heavy metals which potentially contaminate water ecosystems. The available and well-known electroplating wastewater treatments are considered as an expensive and less effective ...
Andhika Puspito Nugroho   +5 more
doaj   +1 more source

Recovery of Residual Carbon from Ti-Extraction Blast Furnace Slag by Flotation with Simultaneous Dechlorination

open access: yesEnergies, 2022
Ti-extraction blast furnace slag (EBFS) is a secondary slag produced by titanium extraction of titanium-bearing blast furnace slag (TBBFS), which is challenging to be used directly because of its residual carbon and chlorine.
Hao You   +4 more
doaj   +1 more source

The Expanded Vermiculite Was Quickly Prepared by the Catalytic Action of Manganese Dioxide on Hydrogen Peroxide and Its Adsorption Properties to Cd

open access: yesMolecules, 2023
The structure and activity of vermiculite can be maintained by expanding vermiculite (Vrm) with hydrogen peroxide. However, it is time-consuming. In past studies, little attention has been paid to the catalytic properties of manganese dioxide on hydrogen
Yunzhu Chen   +6 more
doaj   +1 more source

Bioaccessibility and reliable human health risk assessment of heavy metals in typical abandoned industrial sites of southeastern China

open access: yesEcotoxicology and Environmental Safety, 2023
Heavy metal pollution caused by a large number of abandoned industrial sites cannot be underestimated, but its human health risks have not been accurately assessed.
Jiali Shentu   +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

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

Regional waste footprint and waste treatments analysis

open access: yesWaste Management, 2021
This paper provides a detailed analysis of the waste footprint and waste treatments at subnational level, for Brussels, Flanders, and Wallonia. The paper details the waste footprint components into direct waste from households (disposed in bins), indirect waste generated upstream in the supply chains and induced by household consumption and waste ...
Edgar Towa   +3 more
openaire   +3 more sources

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

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