Zabihollah Yousefi
Department of Environmental Health Engineering, School of Health, Mazandaran University of Medical Sciences, Sari, Iran
[ 1 ] - Asurvey on fluoride, nitrate, iron, manganese and total hardness in drinking water of Fereydoonkenar city during 2008-2013
The purpose of present study was to evaluate fluoride, nitrate, iron, manganese and total hardness in drinking water of wells and reservoirs in Fereidonkenar, Mazandaran, Northern Iran and compare the results with national and international standards. This cross-sectional descriptive study was carried out on data during five years from the spring of 2008 until the autumn of 2013. Studies were p...
[ 2 ] - بررسی کمی و کیفی فاضلاب سپتاژ شهری شرق مازندران و راهکار مدیریتی
Background and purpose: Treatment and disposal Septage in developed countries is subject to strict regulations and standards, but in most developing countries, there is no decent standard. Septage if not treated properly can create many problems. This quantitative and qualitative study of urban Septage was done in East Mazandaran (Sari, Behshahr, Neka and Galogah) to provide administrative appr...
[ 3 ] - تجزیه لیگنین از فاضلاب مصنوعی صنایع چوب و کاغذ با استفاده از فرایند فتوکاتالیستی 2UV/Fe-Doped TiO
Background and purpose: One of the biggest environmental problems of pulp and paper industries is discharge of colored wastewater containing lignin to environment. The aim of this study was to evaluate the TiO2 photocatalytic process Dap with iron in the presence of UV for lignin degradation. Materials and methods: This cross-sectional study was conducted at laboratory scale (in vitro) in a 2-...
[ 4 ] - Bioremediation of methyl tertiary-butyl ether (MTBE) by three pure bacterial cultures
Background: Bioremediation of groundwater and soil contamination is more economical than physicochemical remediation. The present study focused on the bioremediation capability of two bacterial species (Klebsiella planticola and Enterobacter cloacae) from the family Enterobacteriaceae. These bacteria have been identified as new species with capability of degrading methyl tertiary-butyl ether (...
[ 5 ] - Quantitative and qualitative characteristics of hospital waste in the city of Behshahr-2016
Background: Recently, the rapid increase in quantity and type of waste has resulted to environmental pollution and health hazards which serve as a major challenge to humans. The level of this waste can be so high that dangerous chemicals and biological contaminants can be found in ordinary household waste. Major sources of waste in every city are mostly from care/health centers. Hence, this s...
[ 6 ] - Integration of artificial neural network and geographic information system applications in simulating groundwater quality
Background: Although experiments on water quality are time consuming and expensive, models are often employed as supplement to simulate water quality. Artificial neural network (ANN) is an efficient tool in hydrologic studies, yet it cannot predetermine its results in the forms of maps and geo-referenced data. Methods: In this study, ANN was applied to simulate groundwater quality ...
[ 7 ] - Dental waste characterization in the city of Ilam in 2014
Background: Dental wastes are one of the environmental issues due to toxic and pathogenic agents such as pathological wastes, pharmaceutical and chemical etc have particular sensitivity. The aim of this study was to determine the dental waste management and related factors in the city of Ilam. Methods: In this cross-sectional study, the studied community was all the sixteen dental clinics in I...
[ 8 ] - Assessment of scale formation and corrosion of drinking water supplies in Ilam city (Iran)
Background: Scaling and corrosion are the two most important indexes in water quality evaluation. Pollutants are released in water due to corrosion of pipelines. The aim of this study is to assess the scale formation and corrosion of drinking water supplies in Ilam city (Iran). Methods: This research is a descriptive and cross-sectional study which is based on the 20 drinking water sources in ...
[ 9 ] - Slaughterhouse wastewater treatment by combined anaerobic baffled reactor and anaerobic filter: study of OLR and HRT optimization in ABR/AF reactors
Background: Slaughterhouse wastewater (SWW) is hardly treated due to the large amount of organic matter, nutrients and suspended solids. These materials are naturally decomposed through biological processes, and then environmental pollution, transmission of pathogens and problems become smelled. Conventional purification methods require high investment costs, high energy consumption and expert ...
[ 10 ] - Evaluation of the presence of coliform in bottled drinking water, released in Sari in 2016
Background: Today, bottled water is used in many countries of the world due to its relatively low cost, better taste, ease of access and low levels of impurities. In unfavorable conditions, the maintenance of microorganisms due to hydrophobicity and adherence to bottles and as a result of increased lipolytic activity can lead to undesirable changes in color, taste and odor, and in cases of more...
[ 11 ] - اندازه گیری غلظت گاز رادن در هوای داخل اماکن مسکونی و عمومی شهر نورآباد ممسنی و برآورد دوز موثر دریافتی آن
Background and Objective: Radon gas is one of the environmental risk factors which can increase the risk of lung cancer and it is well known as the second-leading cause of lung cancer after smoking. The aim of the present study was to investigate indoor radon gas concentration in residential and public environments of Nourabad Mammasani city and to estimate the effective dose due to radon expos...
[ 12 ] - Investigating the treatment and mineralization of olive oil mill wastewater by using electrocoagulation and novel various advanced oxidations: a kinetic study
Background and Objective: Olive Mill Wastewater (OMWW) is one of the most polluted sanitary wastewaters that its ineffective treatment will cause severe pollution of the environment. In this study, OMWW treatment wasinvestigated using combined electrocoagulation and novel advanced oxidation process. Materials and Methods: Biodegradability, efficiency and kinetics of removal of turbidity and or...
[ 13 ] - Contamination Assessment and Zoning of Heavy Metals in Water and Sediment of Alagol Wetland, Iran 2017
Background and purpose: Heavy metal pollution is among the most serious environmental issues that is caused directly or indirectly through human activities or natural sources. Alagol wetland is one of the most important ecosystems in Iran which is affected by numerous agricultural and industrial development programs. Materials and methods: A descriptive cross-sectional study was performed in s...
نویسندگان همکار