• soils
  • Lab tests and a field demonstration were conducted to evaluate the feasibility and effectiveness of immobilizing metals in contaminated soils using phosphate. (fl.us)
  • Sequential extraction procedures have been widely used for examining the physico-chemical forms of heavy metals, which has been described as fractionation, and are important tools for investigating the mobility and environmental ecotoxicity of these elements in soils. (drdarrinlew.us)
  • These results suggested that, in multi-metal-contaminated soils, attention should be paid to the potential mobility of target metals and the pH of the contaminated soil. (deepdyve.com)
  • Immobilization and phytoavailability of cadmium in variable charge soils. (deepdyve.com)
  • However, most P compounds are not readily soluble in soils so it is not readily used for metal immobilization. (wikipedia.org)
  • acid rain can exacerbate this process by releasing heavy metals trapped in soils. (wikipedia.org)
  • Soils and sediment act as sinks for metals which originate from both natural sources through rocks and minerals as well as anthropogenic sources through agriculture, industry, mining, waste disposal, among others. (wikipedia.org)
  • Heavy metals are added into soils through many anthropogenic sources such industry and/or fertilizers. (wikipedia.org)
  • oxides
  • Over the last quarter of a century, his work has included studies in the areas of: structural phase transformations in metals, radiation damage in alloys, ceramic oxides for geologic immobilization of nuclear waste materials, elemental segregation in semiconductor devices, to genetically engineered proteins for creation of two dimensional biological templates for magnetic nanoarrays. (wikipedia.org)
  • isotopic
  • This provides a platform for training young scientists in using of isotopic methods, understanding metal behaviour, and utilizing skills broadly. (wikipedia.org)
  • 7. Quantifying Cu, Cr, Zn, and U stable isotope fractionation by microbial populations Objective: to examine how microbes interact with metals, and the isotopic signatures that are generated to identify this. (wikipedia.org)
  • aquifers
  • 6. Tracing metal-CO2(aq)-solid interactions from deep sources to shallow aquifers Objective: to study the capacity of aquifers to supply metals and metalloids from reactions with CO2-bearing fluids. (wikipedia.org)
  • 10. Trace metal transport across suboxic zones Objective: to utilize metal isotopes to quantify metal cycling across redox boundaries, which controls metal behaviour in surface waters as well as within sediments and aquifers. (wikipedia.org)
  • acid
  • 4. Tracing sulphide weathering using the DGT technique Objective: to further develop the DGT technique for wide use as a species separation technique and examine the release of metals under acid conditions. (wikipedia.org)
  • This process removed heavy metals from mine waste which is one of the major environmental issues associated with acid mine drainage (along with a low pH). (wikipedia.org)
  • cluster
  • The cooled metal vapor becomes supersaturated, condensing in cluster form. (wikipedia.org)
  • The evaporated metal vapor is cooled by using cold helium gas, which causes the cluster formation. (wikipedia.org)
  • Pulsed arc cluster ion This is similar to laser vaporization, but an intense electric discharge is used to evaporate the target metal. (wikipedia.org)
  • Ion sputtering Ion sputtering source produces an intense continuous beam of small singly ionized cluster of metals. (wikipedia.org)
  • mobility
  • It is concluded that all the amendments considered influenced with a different extent the heavy metal mobility in soil as well as the structure and function of the resident culturable microbial communities. (uniss.it)
  • Reduction
  • The Reduction of gold, cobalt, nickel, palladium, or platinum organometallic complexes with silanes creates a catalytically active metal nanoparticle that catalyzes the hydrosilylation reaction, which is important for the synthesis of optically active alcohols. (wikipedia.org)
  • This reduction releases energy for the bacteria's use, and, as a side product, serves to concentrate the metals into what ultimately become ore deposits. (wikipedia.org)
  • sulfur
  • Hydroxyl groups on the oxide surfaces are reacted with a metal reagent complex of the formula Y(L-Pol) m , where Y is a transition metal, magnesium or aluminum, L is oxygen, sulfur, selenium or an amine, and "Pol" represents a passivating agent such as a methoxyethanol, a polyethylene glycol, a hydrocarbon, or a fluorocarbon. (google.ca)
  • copper
  • In that year, Wanklyn and Chapman speculated on the adverse effects of the heavy metals "arsenic, lead, copper, zinc, iron and manganese" in drinking water. (wikipedia.org)
  • transition
  • 9. The method of claim 4 , wherein the polymer is activated to comprise transition metal reactive groups. (google.ca)
  • Amendments
  • In this study we compared the efficiency of different amendments, notably red mud (a bauxite residue), natural zeolite and lime, to immobilize the heavy metals present in a polluted acidic soil [Pb (3266 mg kg − 1 d.m. (uniss.it)
  • The metal fixing mechanism for both amendments appeared similar (i.e. irreversible fixation at constant pH), in contrast to H3PO4 where at least part of the immobilised Cd was irreversibly fixed across a range of pH. (uhasselt.be)
  • broadly
  • 3. Assessing the impact of land use and climate change on particulate metal transport to the oceans Objective: to evaluate the impact of dams, and more broadly changes in local hydrology and land use, on the release and transport of metals. (wikipedia.org)
  • mineral
  • Through recent analytical developments, it is now possible to use natural variations in metal isotopes to obtain new information on how metal behavior in natural waters is controlled by interactions with mineral surfaces, by biological activity, and by release during mineral weathering. (wikipedia.org)
  • bind
  • For example, the metal's coordination preference influences the size and shape of pores by dictating how many ligands can bind to the metal and in which orientation. (wikipedia.org)
  • In these cases, metal sites are exposed when the solvent is evacuated, allowing hydrogen to bind at these sites. (wikipedia.org)
  • immobilize
  • This work indicated that metal-nucleotide nanofibers could efficiently co-immobilize enzymes and MNPs simultaneously, and improve the stability of biocatalysts. (mdpi.com)
  • In severe cases, they incorporate metal "spines" to better immobilize the joint. (wikipedia.org)
  • lime
  • In order to reduce the health risks associated with historically enriched metal smelting sites in Flanders (Belgium), the capacities of a non-beringite cyclonic ash and commercial Na-silicates to fix metals and create conditions to restore vegetation cover were evaluated and compared to lime and H3PO4. (uhasselt.be)
  • surfaces
  • Intermediates and methods for forming activated metal complexes bound to surfaces on oxide layers, immobilizing beads to the modified surface and articles produced thereby are described. (google.ca)
  • Hydroxyl groups on the oxide surfaces are reacted with a metal reagent complex of the formula Y(L-Pol)m, where Y is. (google.ca)
  • lead
  • The disposal of household, municipal, and industrial wastes can lead to soil pollution with heavy metals in various ways. (drdarrinlew.us)
  • The landfilling of municipal solid waste can lead to several metals including Cd, Cu, Pb, Sn, and Zn being dispersed into soil, groundwater, and surface water in leachates if the landfill is not managed properly. (drdarrinlew.us)
  • Industrial
  • MetTrans ("Metal Transport in the Environment") is a four-year Marie Curie Initial Training Network of leading European research groups in both academic and industrial institutions, which addresses outstanding issues in the migration of metals in the environment. (wikipedia.org)
  • This weapon was inspired by the principle of the brake press-a piece of industrial machinery used to bend metal-and maximises damage through the use of hydraulics. (wikipedia.org)
  • This was based on the principle of the brake press, a piece of industrial machinery used to bend metal through progressive force. (wikipedia.org)
  • stable
  • discovered that certain masses of formed metal nanoclusters were stable and were like magic clusters. (wikipedia.org)
  • enzymes
  • The thermodynamics and kinetics of molecular recognition in enzymes, antibodies, DNA hybridization, bio-conjugation/bio-immobilization and bioseparations are studied. (wikipedia.org)
  • small
  • For the series Robot Wars Extreme II, Razer's rubber front wheels were replaced with metal ones bearing small spiked protrusions. (wikipedia.org)
  • Metal nanoclusters consist of a small number of atoms, at most in the tens. (wikipedia.org)
  • create
  • Seeded supersonic nozzle Seeded supersonic nozzles are mostly used to create clusters of low-boiling-point metal. (wikipedia.org)
  • form
  • Red mud was the most effective at reducing the "mobile" form of the metals considered and at promoting bacterial abundance and soil enzyme activity. (uniss.it)
  • target
  • Pulse laser is used to vaporize the target metal rod and the rod is moved in a spiral so that a fresh area can be evaporated every time. (wikipedia.org)
  • total
  • In maintenance-free wetland, factors that have to be considered include: changes in drainage water production and wetland performance over the years, the total metal accumulating capacity of the wetland, and the post treatment integrity of the wetland. (diva-portal.org)