داودی, مجتبی
مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی تربت حیدریه، تربت حیدریه، ایران
[ 1 ] - بررسی مقایسه ای کارایی خاکستر پوست بادام و کربن فعال تجاری در حذف رنگ بازی قرمز 18 از پساب نساجی
Background & Aim: Industrial wastewater is one of the most important sources of hazardous pollutant emissions. Having high levels of various dyes, textile wastewater is considered as one of the major environmental pollutants. The aim of this study was to compare the efficiency of almond shell ash as a natural absorbent in comparison to commercial activated carbon in removing basic red 18 dye fr...
[ 2 ] - مقایسه وضعیت بهداشتی و ایمنی مدارس غیر انتفاعی و دولتی مقطع ابتدایی شهرستان کاشمر در سال 95-1394
Background & Aim: School is a place for nurturing the children talents and plays a substantial role in constructing healthy people. This study conducted to compare the environmental health and safety status of governmental and non-governmental primary schools in Kashmar in 2015-2016. Methods: This is a descriptive/cross-sectional study conducted on 31 governmental and 14 non-governmental pri...
[ 3 ] - بررسی پتانسیل خورندگی و رسوب‌گذاری آب شرب روستایی شهرستان تایباد در سال 95-1394
Background & Aim: Corrosion is one of the most complicated and costly problems related to the drinking water supply that can influence the health of consumers, the general acceptance of a water resource, and the costs of water supply. Scaling also causes problems such as clogging and head loss in drinking water networks. The aim of this study was to determine the chemical quality and stability ...
[ 4 ] - بررسی وضعیت بهداشت محیط مساجد شهر طبس در سال 1394
Background and Aims: Mosques are among public places and like other places meeting hygiene standards is necessary. In case of not paying enough attention to this issue, mosques can be a center from which pathogens spread and endanger the health of the population. The aim of this study was to investigate the environmental health status of mosques in Tabas in 2015. Methods: This is a cross/sec...
[ 5 ] - ارزیابی کارایی خاک اره درخت زیتون تلخ در حذف رنگ و فلزات سنگین از فاضلاب صنایع نساجی
Introduction Dyes and heavy metals are hazardous pollutants often found together in wastewaters of textile industries; these pollutants have a significant ecological impact on the ecosystem and can modify the physical and chemical properties of water affecting the aquatic flora and fauna. Methods This fundamental-applied study was done on lab scale. Effects of various facto...
[ 6 ] - Corrosion and scaling potential of the potable water in villages based on langelier saturation index, ryznar stability index, larson ratio, and saturation level
Abstract Background: corrosion and scaling are of the most important characteristics of drinking water, affecting public health and water industry economy. The aim of the present study was to evaluate the corrosion and scaling potential of potable water supplied by Saqqez Rural Water and Wastewater Company. Materials and Methods: this was a descriptive study conducted on 142 samples taken from ...
[ 7 ] - بررسی میزان فلوراید در منابع آب شرب شهرستان تربت حیدریه در سال 96-1395
Background & Aim: Fluoride concentration in drinking water within the optimal range reduces dental caries and prevents dental fluorosis. This study was conducted to determine the level of fluoride in drinking water resources in Torbat Heydariyeh City in 2016-17. Methods: This descriptive cross-sectional study was conducted on 22 wells used to supply drinking water of Torbat Heydariyeh City. A ...
[ 8 ] - بررسی میزان فلزات سنگین در کمپوست تولیدی از پوست پسته و فضولات دامی
زمینه و هدف: بقایای پسته از محصولات فرعی است، که به هنگام فرآوری پسته در پایانه های ضبط پسته تولید می شود و به علت فسادپذیری سریع و آلودگی محیط زیست و ایجاد مشکلات بهداشتی بایستی به طریق مناسب، بهداشتی و اقتصادی دفع گردد. یکی از پارامترهای اساسی در ارزش گذاری کمپوست تعیین میزان فلزات سنگین در آن می باشد. تحقیق حاضر جهت بررسی سطوح برخی از فلزات سنگین در کمپوست تولیدی و مقایسه با مقادیر استاندارد...
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