نتایج جستجو برای: water distribution system

تعداد نتایج: 3171825  

Journal: :journal of basic research in medical sciences 0
heshmatollah nourmoradi department of environmental health engineering, school of health, ilam university of medical sciences, ilam, iran. seyed ahmad mirbagheri department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran kambiz moradnejadi department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran faroogh kazembeigi department of environmental health engineering, school of health, ilam university of medical sciences, ilam, iran mashallah shamsizad department of environmental engineering, school of energy and environment, tehran azad university, branch of sciences and researches, tehran, iran

introduction: corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. the present study was conducted to evaluate the corrosion and scaling of water distribution system of sarableh city (ilam, iran) during summer and winter seasons in 2014. materials and methods: totally, 60 samples of wat...

Journal: :jundishapur journal of health sciences 0
shahram moshashaian khouzestan water and wastewater company, ahvaz, ir iran abdolkazem neisi department of environmental health engineering and environmental technologies research centre, ahvaz jundishapur university of medical sciences, ahvaz, ir iran afshin takdastan department of environmental health engineering and environmental technologies research centre, ahvaz jundishapur university of medical sciences, ahvaz, ir iran afshin takdastan department of environmental health engineering and environmental technologies research centre, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

based on langelier, corrosion index of water in the distribution system was balanced. shadegan is a city and the capital of shadegan county in khuzestan province, iran. it has an area of 3197 m2 and located 84 km south of ahvaz. water distribution system serves 70,000 people in the city and the total consumed drinking water is 28525 m3per day (3,4).this descriptive, cross sectional study examin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1387

چکیده ندارد.

Journal: :international journal of environmental research 2010
a.h. hassani m.a. jafari b. torabifar

since the surface water is one of the main potable water resources, the usage of chlorine as a disinfectant has increased. consequently the production rate of disinfection by-products (dbps) such as trihalomethane (thm) compounds has grown dramatically. in this paper the thms concentration changes in the sangar water treatment plant (swtp) and rasht water distribution system (rwds) is presented...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی عمران 1383

هر سیستم انتقال و توزیع آب شهری باید به گونه ای طراحی و اجراء شود که بتواند نیاز آبی جامعه را با فشار کافی و در طول دوران طرح تامین کند، معمولا اتلاف آب مبتلا به تمام سیستم های توزیع است و در شرایط عادی بخش عمده ای از مصرف سرانه را تشکیل می دهد. این تحقیق که با هدف انجام مطالعه آب به حساب نیامده و تعیین اجزاء مختلف تلفات فیزیکی و غیر فیزیکی و بازده حجمی سیستم توزیع آب شهر ایوان صورت گرفته است،...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1388

چکیده ندارد.

Introduction: Corrosion and scaling of water in distribution systems in spite of imposing economic and aesthetic problems can lead to adverse effects on consumers' health. The present study was conducted to evaluate the corrosion and scaling of water distribution system of Sarableh city (Ilam, Iran) during summer and winter seasons in 2014. Materials and methods: Totally, 60 samples of wate...

ژورنال: طلوع بهداشت یزد 2013
فاتحی زاده, علی , ملکوتیان, محمد, میدانی, الهام,

  Background : Occurrence of corrosion and deposition in drinking water in distribution system can leads to economic and health damages. The aim of this study was to investigate the corrosion and precipitation potential of drinking water in Kerman distribution system.   Methods : This cross-sectional study was performed from September to November of 2011. For determining the chemical quality of...

حبیب‌خانی, پوران, ززولی, محمد علی, صفرپور قادی, مرجانه, ویسی, امیر,

Background and purpose: Heterotrophic plate count (HPC) is commonly used to assess the general microbiological quality of drinking water. HPC must be less than 500 colonies per milliliter in drinking water. The aim of this study was to compare the heterotrophic bacteria of bottled water and drinking water distribution system and their relationship with water quality parameters. Materials and m...

Drinkability of water is determined based on its physical, chemical, and microbial properties. Undesirable changes in these parameters could threaten the health of consumers. The present study aimed to assess the physical, chemical, and microbial parameters of the drinking water sources in Sanandaj, Iran and compare them with the national standard values. This descriptive, cross-sectional study...

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