The direct electrochemical synthesis of tin, cobalt, copper, zinc, cadmium and silver 7-formyl-8-hydroxyquinoline complexes

1993 ◽  
Vol 18 (6) ◽  
Author(s):  
H.E. Mabrouk ◽  
A.A. El-Asmy ◽  
M. Mounir
Keyword(s):  
Electrochemical Synthesis ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cobalt Copper

Direct electrochemical synthesis of cobalt, nickel, copper, zinc, cadmium, tin and lead zincon complexes

1992 ◽  
Vol 17 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Hassan E. Mabrouk ◽  
Mohamed Gaber ◽  
A. Z. El-Sonbati ◽  
Gad B. El-Hefnawey
Keyword(s):  
Electrochemical Synthesis ◽  
Cobalt Nickel ◽  
Nickel Copper ◽  
Zinc Cadmium ◽  
Copper Zinc

Bioremediation of Acid Mine Drainage in an Uranium Deposit

2007 ◽  
Vol 20-21 ◽  
pp. 248-257 ◽  
Author(s):  
Stoyan N. Groudev ◽  
Plamen S. Georgiev ◽  
Irena Spasova ◽  
Marina Nicolova
Keyword(s):  
Mine Drainage ◽  
Plant Biomass ◽  
Uranium Deposit ◽  
Water Flow Rate ◽  
Ambient Temperatures ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cadmium Lead ◽  
Dead Plant ◽  
The Individual

Acid drainage waters generated in the uranium deposit Curilo, Bulgaria, were treated by means of different passive systems such as natural and constructed wetlands, alkalizing limestone drains, permeable reactive multibarriers and a rock filter, used separately or in different combinations. The waters had a pH in the range of about 2 – 4 and contained radionuclides (uranium, radium), heavy metals (copper, zinc, cadmium, lead, nickel, cobalt, iron, manganese), arsenic and sulphates in concentrations usually much higher than the relevant permissible levels for waters intended for use in agriculture and/or industry. The water flow rate through the individual systems was different and not stable, and varied in the range approximately from 0.02 to 1.5 l/s. Efficient removal of pollutants was achieved by means of these systems during the different climatic seasons, even during the cold winter months at water and ambient temperatures close to 0 oC. The removal was due to different mechanisms but microbial sulphate reduction, biosorption by living and dead plant biomass and chemical neutralization played the main roles.

Concentration of Certain Trace Elements in the Soils of Dagestan Lowlands and Its Medical and Ecological Significance

2021 ◽  
pp. 69-76
Author(s):  
Patimat M. Ibnumaskhudova ◽  
◽  
Patimat D. Kazanbieva ◽  
Umiyat A. Magomedova ◽  
Khadizhat N. Abdurazakova ◽  
...  
Keyword(s):  
Trace Elements ◽  
Trace Element Composition ◽  
Economic Problem ◽  
Research Centre ◽  
Morbidity Rate ◽  
State Budget ◽  
Number Of Patients ◽  
Copper Zinc ◽  
The Republic ◽  
Cobalt Copper

Neurological and endocrine diseases, being widespread and producing significant impact on peopleʼs health as well as increasing the risk of disability of the working population (thus burdening the state budget), remain a most important medical and economic problem today. The study aimed to establish a link between these pathologies and the content of trace elements (cobalt, copper, zinc and manganese) in the soils of Dagestan plains. The concentration of active forms of cobalt, copper, zinc and manganese in the soil was established using the atomic absorption spectrophotometer model 170-70 (Hitachi, Japan) at the Biogeochemistry Laboratory of the Caspian Institute of Biological Resources, Dagestan Federal Research Centre, Russian Academy of Sciences. To determine the morbidity rate in the population, we turned to the data of the Ministry of Health of the Republic of Dagestan. The study revealed that the relevant pathologies in Dagestanʼs population, leading to disability, are caused by the trace element composition of the soil. Having compared the data on the content of cobalt, copper, zinc and manganese in the soils of the republicʼs lowland districts (Kizilyurt, Khasavyurt, Babayurt) and the prevalence of endocrine and neurological pathologies, we found a high correlation. The number of patients was in direct proportion to the content of manganese and in inverse proportion to the content of cobalt, copper and zinc. However, in Kizlyar District endocrine pathologies only correlated with zinc in the soil, which, apparently, can be explained by the local diet, fish products playing an important role, and by the fact that the territory is often flooded with coastal waters, changing the elementsʼ concentration in the soil.

scholarly journals Environmental Impacts of an Old Mine Tailings Deposit – Metal Concentrations and Water Pathways

1987 ◽  
Vol 18 (4-5) ◽  
pp. 301-312 ◽  
Author(s):  
P. Sandén ◽  
S. Karlsson ◽  
U. Lohm
Keyword(s):  
Environmental Impacts ◽  
Mine Tailings ◽  
Water Bodies ◽  
Contaminated Water ◽  
Surrounding Area ◽  
Metal Concentrations ◽  
Principal Source ◽  
Zinc Cadmium ◽  
Copper Zinc ◽  
Cadmium And Lead

Variations in metal concentrations in a heavily polluted stream receiving acidic leachates from an old mine tailings deposit are analysed from a hydrological perspective. From an extensive data material, collected during three years, the variations in concentrations of four metals (copper, zinc, cadmium and lead) are discussed. The deposit is the principal source for these metals in the watershed. The variation in metal concentrations in the vicinity of the deposit can to a large extent be explained by simple dilution of contaminated water with uncontaminated water from the surrounding area. Further downstream the deposit, other processes become increasingly important for the metal concentrations in the water bodies.

Electrochemical synthesis, structure, and photoluminescent properties of copper, zinc, and cadmium mixed-ligand complexes

2015 ◽  
Vol 60 (12) ◽  
pp. 1528-1536 ◽  
Author(s):  
D. A. Garnovskii ◽  
A. S. Antsyshkina ◽  
N. I. Makarova ◽  
V. G. Vlasenko ◽  
G. G. Sadikov ◽  
...  
Keyword(s):  
Electrochemical Synthesis ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Copper Zinc

Intakes of copper, zinc, cadmium, tin, iron, nickel and arsenic in a population exposed to lead from water

1983 ◽  
Vol 30 ◽  
pp. 255-260 ◽  
Author(s):  
J.C. Sherlock ◽  
G.A. Smart ◽  
J.I. Read ◽  
P.J. Brooke ◽  
G. Forbes ◽  
...  
Keyword(s):  
Zinc Cadmium ◽  
Iron Nickel ◽  
Copper Zinc
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