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Hamed Biglari
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Medicine & Pharmacology

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The Adsorptive Acid Orange 7 using Kenya tea Pulps Ash from Aqueous Environments Hamed Biglari
Journal of Global Pharma Technology Volume 09 Issue 04
Publisher : Journal of Global Pharma Technology

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Abstract

The control of environmental pollutions specially water resource pollutions is one of the main challenges throughout the world. The discharge of industrial wastewater such as textile industries containing toxic dyes like acid orange 7 has added to this concern. In this research, the adsorption of acid orange 7 anionic dye on the raw fine-grained tea waste modified with an acid and calcined has been investigated through the adsorption method. To achieve this purpose, the adsorbents of fine-grained CTC tea waste were studied in three forms of raw, treated with concentrated phosphoric acid, and calcined at 350, 450, and 500 °C for the adsorption of acid orange 7 with 50-500 mg/L concentrations from the aqueous conditions at pH 2-10 and t 0-120 min using 1-10 g/L adsorbents. The results showed that the best removal yield is about 98% at pH 2 and time 120 using 50 mg/L of dye and 10 g/L of adsorbent, and the modifications have a negligible effect on the improvement of the raw fine-grained tea waste adsorption. The most adsorption capacity (41.66 mg of orange 7 dye) was obtained using 1 g of the adsorbent. Also, the results illustrated that the adsorption pattern is in agreement with the Langmuir and Freundlich isotherm models. The adsorption pattern in the Freundlich model (R2 97%) is slightly more than Langmuir model (R2 85%). According to the granulated structure of tea waste (fine-grained tea) in three forms of raw, acidic and calcined, Kenya is an appropriate and low-cost adsorbent in the adsorption of orange 7 dye from the aqueous media.Keywords: Water pollution, Adsorption, Kenya tea waste, Acid orange 7dye
Evaluation of Phenol Removal from Aqueous Solution by Banana Leaf Ash Hamed Biglari
Journal of Global Pharma Technology Volume 09 Issue 03
Publisher : Journal of Global Pharma Technology

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Abstract

Several industries such as crude oil refineries, petrochemical plants, processing of olive oil, pesticide manufacturing, and oil and sewage activities produce significant amounts of phenol and its derivatives that are among the most important toxic compounds present in industrial wastewater. The present study was conducted to evaluate the absorption potential of phenol from aqueous solutions using the banana leaf ash (BLA). In this basic-applied research, the banana leaf ash (0.1- 1 g) was used as an absorbent according to the purposes intended in laboratory scale and in batch system, and then changes of phenol concentration effect, pH, contact time and Freundlich and Langmuir adsorption equations were investigated. The removal efficiency was 88.93% at pH of four, initial concentration of 10 mg/L and the contact time of 75 minutes. The Langmuir and Freundlich adsorption isotherms were studied to assess the adsorption equilibrium reactions, which the results demonstrated better compliance of adsorption equilibrium reactions with the Freundlich adsorption isotherm (R2 0.900) compared to the Langmuir adsorption isotherm (R2 0.758). Based on the findings of the present study, the banana leaf ash is an inexpensive absorbent with high absorption potential and appropriate ability to the removal of phenol from water and wastewater samples. Keywords: Phenol removal, Banana Leaf Ash, Aqueous Solution, Adsorption, Adsorbent 
Risk Detection and Assessment in Wood and Metal Products Industries using HAZAN Method Hamed Biglari
Journal of Global Pharma Technology Volume 09 Issue 02
Publisher : Journal of Global Pharma Technology

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Developing and advancing technology in the industries has increased the number of risks at work environment and the number of workers at risk as well. These risks and the risk factors need to be managed, assessed, and controlled using systematic methods. Therefore, the present study is aimed at assessing and detecting risks in wood and mental products industries using HAZAN method. Data gathering was done using HAZAN worksheet, observation, walking and talking method, risk detecting checklists, technical documents, and plots available. The findings represented 137 risks at workshop, out of which 2.92% were 1st rank (unacceptable), 2.92% were 2nd rank (undesirable), 85.4% were 3rd rank (acceptable if controlled), and 8.76% were 4th rank (acceptable). Most of the risks were found at MDF section (n 30), metal assembly (n 28), metal works (n 27), and MDF assembly (n 23). In addition, high risks jobs were bending, electrical welding, PVC work, and guillotine work. The results showed that 3rd rank risks were the largest group of risks and this showed that great improvement could be made in cutting the number of accidents and financial and life loss by controlling these risks. It is notable that 1st rand risks should be controlled immediately using engineering and administrative controls and 2nd rank risks shall be turned into 3rd rank risks in a reasonable time frame. With regard to 3rd rank risks, we need to make sure of availability of controls; and the 4th rank risks were acceptable. Taking measures such as safety training and permanent supervision by the safety authorities were also effective to minimize the risks.Keywords: Risk, assessment, HAZAN method, industrials products, workers risk 
Introduction of Red Soil (Ocher) of Hormoz Island as a Natural Adsorbent to Removal of Cadmium from Aqueous Solutions Hamed Biglari
Journal of Global Pharma Technology .
Publisher : Journal of Global Pharma Technology

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Abstract

Due to teem and low cost ocher red soil in Hormoz Island (south of Iran), this study was conducted to investigate the efficiency of red soil on adsorption of cadmium from aqueous solutions. a series of steps for adsorption of cadmium on ocher were conducted which included the ocher selection/preparation, determination of chemical and physical characteristics of adsorbent, preparation of cadmium stokes, determine the equilibrium time, the effect of cadmium concentration, adsorbent dose, the effect of environmental factors (pH and temperature), and determine the adsorption kinetic and isotherm. raw ocher had better adsorption efficiency than processed type (74.33% vs. 35%), the main component of adsorbent was Fe2O3 (59.58%). The optimum conditions as dose, pH and temperature which respectively were as (20 g/L; 10; and 35 oC), the adsorption reach to 96%. The study of isotherm and kinetics showed that Cd adsorption on raw Ocher is more fitted to Freundlich isotherm and pseudo second order models. natural ocher of the island of Hormoz would be appropriate to remove the heavy metal, as no need to processing it is economical to use. As temperature has positive effect on Cd adsorption on ocher, this adsorbent can act more effective in hot climate.Keywords: Cadmium, Red soil, ocher, adsorption, Hormoz Island, aqueous solutions
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