Nemat Allah Jaafarzadeh

[ 1 ] - Application of Electro-Fenton (EF) Process to the Removal of Pentachlorophenol from Aqueous Solutions

Pentachlorophenol (PCP) is a very hazardous compound which enters into the environment by industries such as refineries and petrochemicals. As its biological degradation is very slow, this use may cause the pollution of soils and groundwater; with the recent emergence of pentachlorophenol contamination as an important drinking water quality issue, finding an easy, economical, and useful method ...

[ 2 ] - Acute toxicity of TiO2, CuO and ZnO nanoparticles in brine shrimp, Artemia franciscana

The brine shrimp, Artemia spp., is widely used in ecotoxicological research as a biological index. In the present study, aquatic stability and acute toxic effects of TiO2, CuO and ZnO nanoparticles (NPs) on Artemia franciscana were investigated. Acute exposure was conducted in sea water with different concentrations of selected nanoparticles at 24h, 48h, 72h and 96h. The mortality rate of A. fr...

[ 3 ] - Effect of UV light on pentachlorophenol removal in the electro-Fenton process

Background: This research studied the effect of UV light on pentachlorophenol (PCP) removal in the electro-Fenton (EF) process. Methods: PCP was used as the pollutant in this study. The effects of Fenton’s reagent, i.e. hydrogen peroxide concentration, solution pH, and treatment time by EF (EF) and photoelectro-Fenton (PEF) processes, were studied to determine rates of PCP removal. The r...

[ 4 ] - Evaluation of natural zeolite clinoptilolite efficiency for the removal of ammonium and nitrate from aquatic solutions

Background: Surface water and groundwater pollution with various forms of nitrogen such as ammonium and nitrate ions is one of the main environmental risks. The major objectives of this study were to evaluate the capacity of natural zeolite (clinoptilolite) to remove NO3- and NH4+ from polluted water under both batch and column conditions. Methods: The laboratory batch and column experiments we...

[ 5 ] - Emission evaluation of CO2 and CH4 gases in the selected gas pressure booster station in the Bangestan field of the National Iranian Oil Company

Background: Iran is located in the seventh rank in terms of CO2 emissions resulting from the fuel combustion in the world. Gas compressor booster stations, due to the several sources of contaminants, are causing the release of large amounts of CO2 and CH4, which will cause climate change therefore, estimating the emissions of the gases from oil and gas, different processing units are necessary....

[ 6 ] - Acute toxicity of TiO2, CuO and ZnO nanoparticles in brine shrimp, Artemia franciscana

The brine shrimp, Artemia spp., is widely used in ecotoxicological research as a biological index. In the present study, aquatic stability and acute toxic effects of TiO2, CuO and ZnO nanoparticles (NPs) on Artemia franciscana were investigated. Acute exposure was conducted in sea water with different concentrations of selected nanoparticles at 24h, 48h, 72h and 96h. The mortality rate of A. fr...

[ 7 ] - مکان‌یابی محل دفن پسماند جامد شهرهای جنوبی استان خوزستان با استفاده از منطق فازی و تحلیل سلسله مراتبی

دفن غیربهداشتی پسماند جامد شهری و اثرات منفی زیست‌محیطی آن، موجب شده که روش‌های علمی و صحیح، جایگزین روش‌های سنتی شوند. یکی از مهم‌ترین مراحل دفن بهداشتی پسماندها انتخاب مکان مناسب است، به طوری که اثرات نامطلوب زیست‌محیطی، اجتماعی و اقتصادی حداقل شود. هدف از این مطالعه تعیین مکان مناسب جهت دفن پسماند جامد شهرهای شهرستان‌های خرمشهر، آبادان، شادگان و ماهشهر است. عوامل تأثیرگذار در سه شاخص زیست‌مح...