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Trace Metals in Water Samples Taken from Azerbaijan Sector of Caspian Sea

Journal of Chemistry and Chemical Engineering 2015年第4期9卷 288-295页

作者： famil yusif humbatov majid mirza ahmadov valeh saleh balayev bahruz allahverdi suleymanov Institute of Radiation Problems National Academy of Science of Azerbaijan H. Cavid av-e Az 1143 Azerbaijan

The present study was conducted to investigate the heavy metal contents （As, Ba, Cd, Co, Cr, Cu, Ga, Mo, Mn, Rb, Pb, Cu, Ni, V, U and Zn） in seawater samples, which were collected at two c （5 and 100 m）, from 9 different sites of Azerbaijan sector of the Caspian Sea. The Agitent 7700x Series ICP-MS （inductively coupled plasma mass spectrometry） with HMI （high matrix introduction） system applied to analysis seawater. It was shown, the average concentrations of elements as Cr, Co, Cu, Mn, Pb and Zn in surface water slightly higher than their concentrations in depth water at 100 m. Practically it is not deference of the Mo, Rb and U average concentrations in surface and 100 m depth column water. There was little variation observed for nickel and vanadium. In contrast the concentrations of As, Ga and Ba in samples taken from 100 m, were significantly higher than the concentration in surface samples. Dependence concentration of elements from water columns depth can be explained in accordance with the geochemical system of classification of dissolved forms of elements in the sea water.

关键词： Heavy metals Caspian Sea ICP-MS polution.

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Radium Isotopes in an Oil-Field Produced Lake near Baku, Azerbaijan

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Journal of Environmental Protection 2016年第9期7卷 1149-1156页

作者： famil yusif humbatov bahruz allahverdi suleymanov majid mirza Ahmedov majid mirza Ahmedov valeh saleh balayev Institute of Radiation Problems National Academy of Sciences of Azerbaijan Baku Azerbaijan

An assessment of radiologically enhanced residual materials generated during oil and gas production in near Baku, Azerbaijan, was conducted. Distribution of the 228Ra/226Ra Activity Ratio (AR) with depth in a sediment core from radium lake was examined. The dashed line represented ingrowth assuming that 228Ra was below equilibrium with 232Th in the young sediments near the top and reached equilibrium at a depth around 10 cm. In this study the radium isotopic data are used to provide estimates of the age of formation of the radiobarite contaminant and age of oil field lake. The results indicate that, the upper two layers in the core (up to 4 cm) contain fallout 137Cs so at least these layers are no older than about 40 yrs. Formation waters that are sent to disposal ponds may consist of accumulated heavy hydrocarbons, paraffin, inorganic solids, and heavy emulsions. We report here results of chemical and radiochemical measurements from formation waters separated from oil pumped from approximately 700 m below ground near Baku, Azerbaijan. Our results also include data from a formation water storage pond (“radium lake”) where the waters are temporarily stored after oil is separated and then eventually disposed of by pumping into the Caspian Sea. We also analyzed the associated sediment for radiochemical components. Our study was intended to investigate how radium fractionated between the pond water and sediments.

关键词： Oil Industry Formation Water Sediments Radium Isotopes NORM Azerbaijan

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Uranium and Thorium Determination in Water Samples Taken along River Kura

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材料科学与工程（中英文B版） 2016年第2期6卷 80-84页

作者： majid mirza ahmadov famil yusif humbatov valeh saleh balayev bahruz allahverdi suleymanov Institute of Radiation Problems of NAS Azerbaijan

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