Al-Kunooze Scientific Journal

AbstractNanotube activated carbon (NAC) prepared from Iraqi zahdi date seeds (ZDS) usingphysiochemical activation (KOH treatment and carbon dioxide gasification). Theeffects of the activation temperature, activation time and chemical impregnation ratioson the carbon yield. The optimum conditions for preparing nano activated carbon fromIraqi Zahdi date seeds were found to be activation temperature of 750.0 oC, activationtime of 70 min and chemical impregnation ratio of 2.1. The carbon yield was found tobe 19.0%.

Mesoporous activated carbon was prepared from the twigs of Iraqi nabk trees (Zizyphus spina Christ Rhamnaceae family) as precursors using both of chemical activation which consisted of potassium hydroxide (KOH) treatment and physical activation using carbon dioxide (CO2) gasification. It were found from the design of experiment software, that the optimum conditions for preparation nabk twigs activated carbon: activation temperature of 520 oC, activation time of 40 min and 1.0 for the chemical impregnation ratio.

This article discussed the major marine pollution arising from offshore petroleum production, refinery and exporting. The sources of marine pollution from offshore activities like; production gases, oil spill, drilling fluid, production water and naturally occurring radioactive materials (NORM). All these activities produced extra radiation doses to human and non-human biota in the marine system. The distribution of natural gamma emitting 238U, 232Th,40K and radon gas (222Rn) radionuclides in biota ofNorthern west of Arabian Gulf, South of Iraq have been carried out using a NaI(Tl) gamma ray spectrometric technique and Solid State Nuclear Detectors SSNTDS. Datafrom the current investigation will be useful for tracking and assessing any accentual

AbstractTwelve water samples were collected from four locations in Tigris River near the intake points of several drinking water stations namely Jisser Dyala, Al Towatha, Al Madain and Al Wahda drinking water stations, respectively, in south Baghdad- Iraq. At the same time twelve soil samples were collected from agriculture farms in same area of water sample. Both water and soil samples were collected through April 2012.The presented results revealed different values for physical, and chemical parameters for both water and soil samples studied. The chromatographic results for evaluation of polyaromatic hydrocarbons (PAHs) using HPLC method, revealed high values in some station in the range between 0.22-52.51 ng/ml for water and 0.21-30.2 ng/ml for soil, which indicated that predominate PAH were Fluoranthene, Pyrene, naphthalene, Benzo (b) fluranthene and Benzo (k) fluranthene derivative in these samples, which were may be diffused from neighboring oil resources. In some polluted soil samples there is a highly elevated in heavy metals and the concentration of nitrate and nitrates ions which might be came from the residue of explosive material during the last war (2003) in Iraq. Soil samples were investigated for its heavy metals content. Samples of soil were analyzed for their content after digestion with nitric acid using atomic absorption spectrometers AAS. The results refer to increase in most of these elements.The aim of this work is to establish a relationship between the pollution levels of different pollutants with medical problems which were recently elevated in these regions (cancer incidents, cardiovascular diseases, digestion disease, genetic mutation in new born children and allergy disease) compared with the international criteria for evaluation these types of diseases status.