Heterogeneous peroxymonosulfate (PMS) activation by cobalt-based catalysts has drawn much attention due to the high-performance property of cobalt ions (Co(II/III)) to activate PMS. However, the leaching and residue of Co(II/III) in water is still a hurdle to the long-term development of...

This paper provides evidence that the rapid increase in the demand for lithium-ion batteries has reduced the education rates of individuals living in cobalt-rich regions of the Democratic Republic of the Congo (DRC). In contrast with other minerals, I find that children in cobalt-mining villages...

Rehabilitation of disused mine sites through stabilisation and botanical restoration is ecologically important, but metal transfer pathways to colonising wildlife are often less understood and have never been studied in marsupials. The rehabilitated Royal George tin mine tailings and...

One of the most sustained uses of economic warfare by the United States occurred in Spain during WWII. We provide an overview of this episode based on the secondary literature and new research in the Spanish archives. We focus on three key battles: (1) an oil embargo against Spain in the summer...

This paper provides evidence that the adoption of modern lithium-ion batteries led to a decline in child education in the Democratic Republic of the Congo. In contrast with any other mining activities, I find that the rapid increase in the worldwide demand for cobalt led to a reduction in the...

Being rich of crucial minerals might be a leading determinant of local economic development. On the other hand, intensive extraction might prove to negatively affect the health and wealth of people living close to mineral deposits and the surrounding environment. I examine the effects that local...

Les Panama Papers de la République Démocratique du Congo: pourquoi ce pays potentiellement riche est-il si pauvre? Dans 'Cobalt blues', le journaliste Erik Bruyland se plonge dans l'histoire postcoloniale de son pays natal, la République Démocratique du Congo. Le passé colonial belge s'est...

Many new and efficient technologies require "critical metals" to function. These metals are often extracted as by-product of another metal, and their future supply is therefore dependent on mining developments of the host metal. Supply of critical metals can also be constrained because of...

Concentrations of lead (Pb), cadmium (Cd), chromium (Cr), copper (Cu), zinc (Zn) and manganese (Mn) were measured in various organs (such as in liver and muscle) from 9 species of freshwater economic fishes which were collected from northeast area of Guangdong Province. The concentration of...

Sediments in estuary areas are recognized as the ultimate reservoirs for numerous contaminants, e.g., toxic metals. Multivariate analyses by chemometric evaluation were performed to classify metal ions (Cu, Zn, As, Cr, Pb, Ni and Cd) in superficial sediments from Lingdingyang Bay and to...

Soils samples were collected from selected automobile workshops in Abraka, Delta State, Nigeria, at the depths of 0 – 15cm, 15 – 30cm and 30 – 45cm representing top,- sub- and bottom soils respectively and also from control site and 20m away from the point of impact. The soils were...

The contents, speciation, source factors and potential ecological risks of the selected metals (Cr, Ni, Cu, Pb, Zn, Cd and As) were analyzed in surface sediments from Daya Bay (DYB). The results show that, with the exception of Pb, metal concentrations have decreased at all sites over the past...

The technology of in situ immobilization with amendments is an important measure that remediates the soil contaminated by heavy metal, and selecting economical and effective modifier is the key. The effects and mechanism of steel slag, the silicon-rich alkaline by-product which can remediate...

The invertebrates constitute important indicators in the appreciation of the soil. A first step in this respect is constituted by the analysis of the heavy metals in the corn fields in the Axente Sever and Copsa Micaƒ Area. Methods of researching: collecting the samples in the soil by using the...

The present study investigated heavy metal contents and microbial flora of fresh leaves of fluted pumpkin (Telfaria occidentalis) collected from road-side open markets in Benin Metropolis, Midwestern Nigeria. Seven roadside open stall markets were randomly selected in 4 Local Government Areas in...

More than 20 soil samples were collected from tea gardens of specialized tea towns in Guangdong, including Fenglang Town and Fengshun Town in Meizhou City, Changshan Town in Lianjiang City, Fenghuang Town in Chaozhou City. Content of 6 types of heavy metal (Cr, Cu, Pb, As, Cd, Hg) in tea garden...

This paper uses the ESRI's ISus model to explore the distributional differences in emissions by household type. Most greenhouse gas and metal emissions are emitted via indirect means, although direct sources of emissions play a role for CO2, SO2 and CO. The results suggest that the richest...

The objective of this paper was to provide a preliminary analysis of the utilization of energy derived from waste wood in Taiwan, a highly industrialized country with a high dependence (over 99%) on imported energy. The discussion focuses on the status of waste wood generation and its management...

Reuse of wastewater for agricultural irrigation is one of the useful managements to alleviate the shortage of water resources in arid and semi-arid regions in China. Industrial wastewater from the city of Shijiazhuang is discharged into Wangyang River after treatment. The water is used...

In the present study, laboratory scale biogas production from rice husks (RH) generated from different rice mills was investigated using cow rumen fluid as a source of inoculum. The effects of various parameters such as water dilution, initial pH, heavy metals and nitrogen sources on digester...

"A decade ago, hardly anyone had heard of this obscure mineral, used to manufacture the cell phones and laptops that have become so central to our daily lives. Then, in 2000, reports emerged about mines deep in the Congo jungle where coltan was being extracted in brutal conditions watched over...

The study adopted the experimental research design and field survey of the oil-producing region of Nigeria for the past 10 years. A total of 100 sterilized rain gauges were randomly distributed on the basis of 50 each to the eastern and western division of the oil company operating in the...

One of the most sustained uses of economic warfare by the United States occurred in Spain during WWII. We provide an overview of this episode based on the secondary literature and new research in the Spanish archives. We focus on three key battles: (1) an oil embargo against Spain in the summer...