yusef omidi
Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
[ 1 ] - Modeling of CO dispersion from the Stack of an Iranian cement industry
The objective of our study was to simulation of carbon monoxide (CO) dispersion exited from the stacks of a cement industry of Doroud, Iran by Gaussian Model (GM). Four sampling period was conducted to measurement of CO from the factory's three-stack flow during one year. The input parameters for were the rate of CO emission, meteorological data, factors of related to the stack, and factors of ...
[ 2 ] - The study of an azo dye removal from liquid medium by modified clay
In this batch study, montmorillonite was modified by a cationic surfactant [hexadecyltrimethylammonium bromide (HDTMA-MMT)] and used as sorbent to remove bromocresol green (BCG) from aqueous solutions. The effect of several factors such as surfactant loading rate onto the clay, contact time, pH, adsorbent dosage, dye concentration, and ion strength were investigated on the sorption. The equilib...
[ 3 ] - Adsorption of 4-chlorophenol from aqueous solution using activated carbon synthesized from aloe vera green wastes
In this study, activated carbon synthesized from Aloe vera green wastes was used as a sorbent to remove 4-chlorophenol (4-CP) from aqueous solutions. The influence of contact time (0-100 minutes), pH (2-8), adsorbent dosage (1-9 g/l), and initial 4-CP concentration (10-60 mg/l) in batch system was investigated on the sorption. The sorbent was specified using scanning electron microscopy (SEM). ...
[ 4 ] - ارزیابی پراکنش گرد و غبار(PM10 و PM2.5) در محوطه کارخانه سیمان دورود و بررسی میزان مواجهه فردی با آن ها
مقدمه: گرد و غبار حاصل از تولید سیمان به عنوان یکی از مهم ترین نگرانی های زیست محیطی شناخته می شود. کارخانه سیمان دورود یکی از منابع اصلی انتشار ذرات معلق در شهرستان دورود می باشد. هدف از این مطالعه اندازه گیری میزان گرد و غبار (PM10 و PM2.5) محیط اطراف کارخانه سیمان دورود، بررسی کیفیت هوا از نظر ذرات معلق و مطالعه میزان مواجهه فردی با آن ها می باشد. مواد و روش ها: این پژوهش به صورت توصیفی-ت...
[ 5 ] - Performance of Extended Aeration Biological System in Removal of Organic Matter from Razi Hospital Wastewater during 2015, Iran
Background & Aims of the Study: The most important compounds in hospital wastewater are antibiotics, disinfectants, anesthetics, radioactive elements, static cytotoxic agents, other chemicals and hazardous materials that caused to be different domestic sewage. The purpose of this study was the evaluation of performance of extended aeration biological system in pollutants remova...
[ 6 ] - Exposure to Particulate Matter and its Health Impacts (an AirQ Approach)
Background & Aims of the Study: Recent studies indicated that particulate matter can have the lung irritation, chronic lung diseases, lung tissue, etc. The aim objective of this study was to assess the mortality associated with exposure to PM10 concentrations in Ilam, Iran, during 2013. Materials & Methods: PM10 data were taken from Ilam's ...
[ 7 ] - Health Impacts of Particulate Matter in Air using AirQ Model in Khorramabad City, Iran
Introduction: Air pollution due to particulate matter is a major environmental and health issue in all regions of the world. The aim of this study was to investigate the health impacts of PM10 (particulate matter with an aerodynamic diameter ≤10μm) in Khorramabad city, Iran in 2014. Materials and methods: In this study, PM10 sampling was conducted by a high-volume sampler at flow rate of 1.1-1...
[ 8 ] - Removal of methylene blue from aqueous solutions using modified clay
Introduction: Discharging of industrial colored wastewaters especially into aqueous environments can cause adverse effects on aquatic life due to their toxic natures. In this study, montmorillonite modified by hexadecyltrimethyl ammonium bromide (HDTMA-Mt) was used for the adsorption of methylene blue (MB). Materials and Methods: The influence of surfactant loading rate, contact time, pH, adso...
[ 9 ] - An assessment on dispersion of carbon monoxide from acement factory
Background: Modeling the dispersion of pollutants from factory stacks addresses the problem of matching emissions of a cement plant with the capacity of the environment to avoid affecting the environment and society. The main objective of this study was to simulate the dispersion of carbon monoxide (CO) from the main stack of a cement plant in Doroud, Iran using SCREEN3 software developed by th...
[ 10 ] - Health impact assessment of short-term exposure to NO2 in Kermanshah, Iran using AirQ model
Background: Epidemiological studies have illustrated that exposure to atmospheric nitrogen oxides (NO2/NOX) is responsible for an increased risk of acute or chronic diseases such as cancer. In this study the health risks associated with nitrogen dioxide (NO2) were assessed in the city of Kermanshah, the capital of Kermanshah province, Iran. Methods: Data on hourly NO2 levels that had been meas...
[ 11 ] - بررسی بیوآئروسل های قارچی و ذرات معلق هوای داخل و آزاد بیمارستان های آموزشی- درمانی شهر خرم آباد در زمستان 93 و بهار 94
Background and Objective: The presence of fungal bioaerosols in hospitals indoor environments have affected the health of patients with the defect in immunity system. Therefore, determination of the rate and species of these agents is essential. This study aimed to investigate association between fungi contamination and particulate matter (PM10, PM2.5 and PM1) concentrations in the main indoor ...
[ 12 ] - Hexadecyl Trimethyl Ammonium Bromide-Modified Montmorillonite as a Low-Cost Sorbent for the Removal of Methyl Red from Liquid-Medium
In this study, montmorillonite (MMT) modified by a cationic surfactant (Hexadecyltrimethyl ammonium bromide, HDTMA) was used as adsorbent to the removal of methyl red (MR) from aqueous solution. The effect of different parameters includes surfactant loading rate, contact time, pH, adsorbent dosage, and initial MR content was investigated on the sorption. The sorption capacity was increased by i...
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