Results 81 to 90 of about 840,373 (288)
Informal gold mining and mercury pollution in Brazil [PDF]
The Amazon region has been responsible for a major share of Brazilian gold production in recent years. The region has witnessed a sizable gold rush comparable only to the California gold rush last century.
DEC, Biller, Dan
core
Bismuth Chalcogenide‐Based Photocatalysts for Nitrogen Reduction: Recent Progress and Prospects
Chemistry – A European Journal, EarlyView.Bismuth chalcogenides emerge as promising visible‐light photocatalysts for sustainable ammonia synthesis, driven by tunable electronic structures and strong N2 activation. Recent advances reveal how defects, doping and heterojunction design synergistically enhance charge separation and reactivity. Key challenges and future directions highlight pathways
Mukesh K. Verma +4 more
wiley +1 more source
Socioeconomic Consequences of Mercury Use and Pollution
AMBIO: A Journal of the Human Environment, 2007 In the past, human activities often resulted in mercury releases to the biosphere with little consideration of undesirable consequences for the health of humans and wildlife. This paper outlines the pathways through which humans and wildlife are exposed to mercury. Fish consumption is the major route of exposure to methylmercury.
Swain, Edward B. +8 more
openaire +3 more sources
Binding-Time Analysis for Mercury [PDF]
, 2004 In this work, we develop a binding-time analysis for the logic programming language Mercury. We introduce a precise domain of binding-times, based on the type information available in Mercury programs, that allows the analyser to reason with partially ...
Wim Vanhoof +6 more
core +1 more source
Catalytic Oxidation of CO and VOC in Flue Gas of Coffee Roasting Machines
Chemie Ingenieur Technik, EarlyView.Platinum‐coated cordierite monoliths effectively oxidized CO and VOC in coffee roasting exhaust with higher Pt loadings lowering light‐off temperatures. Scaled up 90 g/ft3 catalyst in a 5 kg roaster achieved 96% CO and around 78% VOC conversion at 350°C, highlighting stable operation requires flue gas temperatures ≥350°C.
Till Hauswald +3 more
wiley +1 more source
HydrologyThis research quantifies mercury use and models its transport in artisanal and small-scale gold mining (ASGM) in the Lom River during two key periods of intense mining activities and high water flow.
Marie Sorella Bella Atangana +3 more
doaj +1 more source
Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi +7 more
wiley +1 more source
Mercury in Products Phase-Down Strategy [PDF]
, 2008 This Phase-Down Strategy is a project of the GLRC and seeks to complement and enhance the recommendations in the Quicksilver Caucus’s Action Plan and Implementation Strategy for reducing mercury in the environment.
core +1 more source
The study on the effect of mercury pollution on soil microorganisms around mercury mining area. [PDF]
Sci Rep, 2023 Du J +5 more
europepmc +1 more source
Water‐based drilling fluids formulated with mature fine tailings
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Mature fine tailings (MFT) are persistent, highly stable colloidal suspensions generated as byproducts of bitumen extraction from oil sands. Given their environmental risks, identifying viable applications for MFT could reduce their accumulation while offsetting natural resource use.
Haichao Li +2 more
wiley +1 more source