Geochemistry Articles
-
A Calibrated Predictive Geochemical Model of Leaching and Attenuation Reactions in a Mine Pit Lake
Abstract: A geochemical model was developed to predict future water quality of the Cove pit lake in support of site closure and regulatory permitting. The terminal, groundwater-fed Cove pit lake began filling in 2001, and water-quality samples from the 15-year filling period were used to calibrate the pit-lake model and evaluate the accuracy of the predictions. Inputs to the pit-lake model ...
-
Neutral mine drainage water-quality impacts from a form taconite mine
Abstract: Surface waters at the site of a former Minnesota taconite mine were reported to have solute concentrations elevated with respect to water-quality standards. Waste rock and ore generated from past mining were primarily from open pit mining of the Biwabik Iron Formation (BIF). The BIF is a variably bedded iron formation composed of inter-bedded cherty and slaty iron silicate and iron ...
-
Determination of anthropogenic pedo-geochemical backgrounds (FPGAs): the case of Toulouse Métropole - Case Study
Urban soils hold the "memory" of cities; the geochemical quality of urban soils, to which the population is exposed, reflects its history: emissions since the industrial revolution, successive reconstructions on rubble, particularly following historical conflicts, etc. This is why we know little about the quality of these surface layers, made up of rubble of uncertain composition, even though it ...
By BRGM
-
Update on the geophysical expression of the Abra sedimentary replacement Pb-Ag-Cu-Au deposit, Western Australia
Summary The Abra sedimentary replacement Pb-Ag-Cu-Au deposit is located in the Paleoproterozoic Edmund Basin, 900km NNE of Perth. Mineralisation at Abra has no surface expression and the deposit was discovered in 1981 by drill testing coincident magnetic and gravity anomaly highs. The deposit is hosted within siliciclastic and carbonate deposits of the Edmund Group and consists of a stratabound ...
By MoHo s.r.l.
-
System Setup and Parameter Optimization for a Desolvating Nebulizer Unit with Multicollector Inductively Coupled Plasma Mass Spectrometry for Stable and Radiogenic Isotope Ratio Measurements
Multicollector ICP-MS instruments are widely used in geochemistry for high precision isotope ratio measurements. Signal enhancement and / or interference reduction (ex. oxides and hydrides) is often necessary for useful measurement of low abundant isotopes and mass-limited samples. This work will describe the setup and optimization of a new desolvating nebulizer accessory for multicollector ...
-
TerraStryke Tphenhanced Cost-Effective, Low-Impact Residual Groundwater Remediation Petroleum Fuel Oil Release; Philadelphia, Pennsylvania - Case Study
TerraStryke Remediation Products, LLC (TerraStryke) develop and distribute biostimulation additives proven to cost-effectively enhance the destruction of dissolved phase and residual source mass contaminants by nourishing native microbial populations. TerraStryke TPHenhanced enriches site geochemistry and heterotrophic bacteria to realize the destruction of petroleum hydrocarbon (PHC) ...
-
Seven reasons to choose the X-MET8000 Expert Geo for mining
Mining companies are looking for ways to make their operations more efficient and reduce costs without compromising on product quality. Product Manager Christelle Petiot looks at how the X-MET8000 Expert Geo from Hitachi High-Tech can help them. When the Mining Indaba takes place this year, the topic of investment will top the agenda. After a decade of low demand and plunging commodity prices, ...
-
Groundwater quality assessment and its suitability for agricultural purposes in the Behbahan Plain, SW Iran
Groundwater is the main agricultural water resource in arid and semi-arid regions, so, preserving it is extremely important. In this study, groundwater quality was assessed for irrigation, using the principal chemical and physical quality parameters from 30 wells in the study area. Groundwater classification on the basis of electrical conductivity reveals that more than 85% of the samples taken ...
-
Parameters controlling chemical deposits in micro-irrigation with treated wastewater
Micro-irrigation with treated wastewater has the potential to be the most efficient irrigation technique, especially in water scarce areas. Its main disadvantage is the high sensitivity of the drippers to clog. This study focused only on the chemical precipitation mechanisms. In a batch chemical process in parallel with PHREEQC software, two temperatures (22 and 55°C), four pHs (8, 8.5, 9 and ...
-
P-METRIX - bringing edxrf lab analysis to the field
The P-Metrix is wrapped in a portable case that acts as a self-contained EDXRF laboratory and allows you to roll it to any site for your elemental analysis test. P-Metrix, bridging new frontiers in lab-to-field analysis, will be presented at the 2017 ACS Spring Meeting, at San Francisco, April 2nd - 4th, booth # 1706. The analytical and industrial instrumentation from Xenemetrix range from ...
-
Science for Environment Policy
Potentially toxic elements in European soils mapped by researchers. A new study has mapped levels of chemical elements found in Europe a aoricultTal soils. In most places, unusually high concentrations are linked t geology, such as high levels of arsenic in the Massif Central in France. Huma.. activity is to blame in some small areas, for example high concentrations of mercury were ...
-
Chemical fingerprinting of saline water intrusion into sewage lines
High salinity in sewage sludge can affect not only the operation of wastewater treatment plants (WWTPs) but also the quality of treated water generated, thereby limiting its downstream reuse. Using data on geochemical parameters, both for the central WWTP in Abu Dhabi, UAE, and literature values for potential regional saline water sources (e.g., shallow groundwater and regional Arabian Gulf ...
-
Geochemistry exploration environment analysis of waters: the case of the basin of the Great Sebkha of Oran
Water resources are economically and environmentally the most valuable for countries affected by aridity. This study is to identify the factors influencing the quality of the waters of the aquifer system of the Great Sebkha of Oran, one area that is already in a stress situation. The determination of the origin of the salinity of the waters was approached from an analysis of the chemical ...
-
Cape Cod Times article on McLane’s Global Footprint
The Cape Cod Times has published an article on McLane’s exports of its profilers, samplers, and flotation around the world. Recently, the Small Business Administration (SBA) had selected McLane Research Laboratories, Inc. as 2017 Exporter of the Year for the Commonwealth of Massachusetts. The article included a video of a McLane Moored Profiler descending our 50 ft test tank. Sean F. ...
-
Hydrochemical characteristics and quality assessment of urban groundwater in Urmia City, NW Iran
The aim of this study was to evaluate the quality and hydrochemical characteristics of urban groundwater in Urmia City, northwest of Iran. In order, 59 groundwater samples were collected and analyzed for various anions and cations. Result shows that, mineral weathering, ion exchange and anthropogenic activity are the main hydrochemical processes controlling urban groundwater chemistry. The ...
-
Differential intra-specific stemflow funnelling efficiencies of Caragana korshinskii within arid desert ecosystems
Stemflow is known as a highly localized point input of rainwater and solutes around tree/shrub bases where roots are concentrated, thus having considerable effects on hydrology and biogeochemistry of vegetated ecosystems. Stemflow shows a pronounced inter-specific variation due to morphological differences among species, while the intra-specific variation of stemflow has been poorly explored. ...
-
Effects of two different water sources used for irrigation on the soil geochemical properties and the quality of the Lohan guava (Psidium guajava L. Lohan)
The effect of two different water sources (treated waste water and lake water) used for irrigation on the soil geochemical properties and the fruit quality parameters of the Lohan guava were studied. The fruits' physical attributes, physicochemical attributes, nutritional attributes, mineral content as well as consumers’ acceptance were evaluated. The properties of the different water sources ...
-
Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity
To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million cubic metres of ash ...
-
Major ions behaviour during evaporation of different saline type water of Western Mongolian lakes (geochemical modelling)
The main Mongolian water resources are lakes whose volume has significantly reduced in recent years as a consequence of global warming. This article presents research on three different types of nearly disposed Western Mongolian lakes with a wide range of brines’ composition: Shaazgai-Nuur (soda), Davsan-Nuur (chloride) and Tonhil-Nuur (sulfate). The aim of this study was to determine the ...
-
Hydrochemistry and water quality assessment of the Maroon River in Behbahan area, SW Iran
Assessing water quality is important in optimizing water usage. In this study, six water samples were taken from points along the Maroon River in order to evaluate its quality. The concentrations of Cl−, SO42−, HCO3−, CO32−, NO3−, K+, Mg2+, Na+, and Ca2+, as well as pH, electrical conductivity (EC) and total dissolved solids (TDS) were measured. The results were compared with the WHO (World ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you