Ali Naghizadeh
Department of Environmental Health Engineering, School of Health, Birjand University of Medical Sciences, Birjand, Iran
[ 1 ] - Preparation of magnetic chitosan/Fe-Zr nanoparticles for the removal of heavy metals from aqueous solution
Copper and hexavalent chromium are heavy metals that are harmful to human health. Natural adsorbent chitosan, due to its considerable properties such as the presence of functional groups of –NH2 and -OH, non-toxicity, low cost, and biocompatibility, has gained much attention in pollutant removal. Therefore, in the present study, adsorption of chromium (VI) and copper (II) ions was conducted in ...
[ 2 ] - Investigation of potato peel-based bio-sorbent efficiency in reactive dye removal: Artificial neural network modeling and genetic algorithms optimization
Over the last few years, a number of investigations have been conducted to explore the low cost sorbents for the decontamination of toxic materials. Undoubtedly, agricultural waste mass is presently one of the most challenging topics, which has been gaining attention during the past several decades. Wastes are very cheap and easily available material in production of sorbent. Therefore, the Rea...
[ 3 ] - مقایسه کارایی نانو لوله های کربنی تک دیواره و چند دیواره در حذف آرسنیک از محلول های آبی
زمینه و هدف: حضور آرسنیک در منابع آب منجر به ظهور مشکلات مختلفی از جمله مشکلات پوستی، سرطان، فشار خون و... میشود. هدف از این مطالعه، بررسی مقدار حذف آرسنیک از محیط‌های آبی با استفاده از نانولولههای کربنی در یک ستون جذب پیوسته بود. روش کار: این مطالعه از نوع کاربردی و با مقایسه قبل و بعد بود. متغیرهای مستقل این پژوهش شامل دوز نانولولههای کربنی، مدت زمان تماس و نقطه شکست بود که تاثیر ای...
[ 4 ] - بررسی ایزوترم، سینتیک و ترمودینامیک فرآیند حذف اسید هیومیک توسط نانوکیتوزان از محیط‌های آبی
Background and Aim: Humic substances include natural organic polyelectrolyte materials that formed most of the dissolved organic carbon in aquatic environments. Reaction between humic substances and chlorine leading to formation of disinfection byproducts (DBPs) those are toxic, carcinogenic and mutagenic. The aim of this study was investigation of isotherms, kinetics and thermodynamics of humi...
[ 5 ] - مطالعه سینتیک، ترمودینامیک و ایزوترم فرآیند حذف فلوراید از محلول‌های آبی با استفاده از نانوذرّات گرافن اکساید
Background and Aim: Fluoride is one of the essential elements of water that is introduced into water sources through several natural and human activities. Maximum contaminant level for fluoride in drinking water is set at 1.5 mg/L by WHO. In the present research, defluorination of aqueous solutions using graphene oxide nanoparticles is discussed. Materials and Methods: In the present study, ...
[ 6 ] - Comparing Larvicidal Effect of Methanolic Extract of the Different Parts of Henbane (Hyoscyamusniger L.) Plant on Anopheles spp Larvae in Vitro
Background & Aims of the Study: Malaria is an infectious disease by fever, chills and anemia; and splenomegaly genus Plasmodium parasite is the agent of it. One of the easiest and least expensive methods for preventionof this disease is removing the vector that usually has been done by insecticides and chemical pesticides, but now days due to the harmful effects of toxic chemic...
[ 7 ] - Morphological and Molecular Identification of Acanthamoeba Spp from Surface Waters in Birjand, Iran, During 2014-2015
Background & Aims of the Study: Free-living amoebae (FLA) are opportunistic and ubiquitous protozoa that are widely found in various environmental sources. They are known to cause serious human infections including a fatal encephalitis, a blinding keratitis, and pneumonia. So, due to their medical importance, the identification of free living amoeba in water resources, as a sou...
[ 8 ] - Evaluation of Environmental and Respirable Dust in Air of Tile Industry in South Khorasan
Background & Aims of the Study: Dust is one of the detrimental factors in workplace of tile industry. Exposure to excessive amount of dust can create various hazards to the workers. Therefore, the present study aimed to measure the concentration of environmental and respirable dust in air of Birjand Niloofar tile Industry. Materials & Methods: In the present study, using personal...
[ 9 ] - Study of Kinetic coefficients of a Membrane Bioreactor (MBR) for municipal wastewater treatment
Background & Aims of the Study: In order to design membrane bioreactors (MBR) properly, it is essential to comprehend the behavior of microorganisms in such wastewater treatment processes. Materials & Methods: In this study, a lab-scale MBR process was operated to determine the biokinetic coefficients of the MBR system under different MLSS concentrations of 6800, 7000, 74...
[ 10 ] - Influence of morpholine on changes in kidney tissue and white blood cells of NMRI male Albino mice
Background: Morpholine is a toxic substance used in industry and agriculture and can be absorbed into the body through ingestion, inhalation, and the skin. The present study aimed to assess the effect of morpholine and physiological serum ingestion on qualitative and quantitative characteristics of white blood cells and kidney tissue of white male mice. Materials and Methods: In the present ...
[ 11 ] - بررسی غلظت مونواکسیدکربن هوای داخل ساختمان و هوای آزاد شهر بیرجند (شهریور تا اسفند 1393)
Background and Aim: One of the notorious air pllutants on which air quality is determined is carbon monoxide (CO). The aim of the present study was to measure the concentration of CO outdoor and indoor urban environments and compare it with air quality standards within buildings and open spaces. Materials and Methods: This research was a descriptive-analytical study of CO estimation in ou...
[ 12 ] - بررسی کارایی نانوذرّات گرافن‌اکساید در حذف کروم و سرب از محلول‌های آبی
Background and Aim: Currently, several methods are used to remove heavy metals from aqueous solutions one of which is the adsorption process. Graphene oxide nanoparticles, due to their high adsorption capacity, have caused major concerns. The current study aimed at assessing the role of these particles in removing Chromium and Lead from aqueous solutions. Materials and Methods: This empirical s...
[ 13 ] - Comparison of salt content in breads offered in bakeries in South Khorasan province in 2014-2018
Background and Aim: Adding salt to foods including bread along with improving its taste can cause problems such as high blood pressure; therefore, considering the importance of the presence of salt in bread, the purpose of this study was to investigate the amount of bread salt in bakeries in South Khorasan province in 2014-2018. Materials and Methods: This descriptive-analytical and retrospec...
[ 14 ] - Natural Gamma Radiation and Effective Annual Dose in Hot Springs in South Khorasan Province, Iran
Background and purpose: Background radiation exists naturally in the environment and human has been always exposed to it. These rays can affect living creatures and cause chromosomal damage, and genetic and somatic diseases. Hot water springs are a major source of background radiation. This study aimed at investigating the absorbed dose of environmental gamma and determining the annual effecti...
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