نتایج جستجو برای: monitoring on water distribution

تعداد نتایج: 9045728  

شاکر خطیبی, محمد, مسافری, محمد, مهری بادلو, اکرم,

Background and Aim: Recently the use of heterotrophic plate count (HPC) has received much attention as a supplementary indicator of the MPN test in water quality control. The US Environmental Protection Agency (USEPA) has declared 500 cfu/mL as the maximum acceptable level for heterotrophic bacteria in distribution networks. Currently the HPC determination is not among the routine control items...

2013
R. Seshadri

Water is a key resource in all economic activities ranging from agriculture to industry. Only a tiny fraction of the planet’s abundant water is available to us as fresh water. Assessment of water quality has always been paramount in the field of environmental quality management. It is the foundation for health, hygiene, progress and prosperity.With ever increasing pressure of human population, ...

2013
Fatlume Berisha Walter Goessler

In the recent years, not much environmental monitoring has been conducted in the territory of Kosovo. This study represents the first comprehensive monitoring of the drinking water situation throughout most of the territory of Kosovo. We present the distribution of major and minor trace elements in drinking water samples from Kosovo. During our study we collected 951 samples from four different...

Journal: :تحقیقات نظام سلامت 0
مهربان صادقی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی شهرکرد، شهرکرد، ایران امین تاجی اشکفتکی دانشجوی کارشناسی ارشد، گروه مهندسی عمران، دانشکده فنی مهندسی، دانشگاه آزاد اسلامی واحد یاسوج، یاسوج، ایران حسن هاشمی کمیته تحقیقات دانشجویی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران سعید حسینی مربی، گروه عمران، دانشکده فنی مهندسی، دانشگاه آزد اسلامی واحد یاسوج، یاسوج، ایران

abstract background: the pressure of consumption spots in eater supply systems is one of the most important hydraulic parameters can be used in optimized management of water distribution networks. since the pressure has some different effects on various parameters of the network management including its hydraulic functions, reliability, stability and leakage, its control is of great importance ...

ژورنال: سلامت و محیط زیست 2017

Background and Objective: Optimum number of air quality monitoring stations in Mashhad is an essential task for management of the urban environment. However, real monitoring and accurate information on the status of air quality require proper spatial distribution of air quality monitoring stations in the city of Mashhad. The aim of the present study was to determine optimum site locations for a...

Journal: :Journal of Environmental Management 2021

Water biostability is desired within drinking water distribution systems (DWDSs) to limit microbiologically-related operational, aesthetic and, eventually, health-related issues. However, variations in microbiological quality can take place both spatially along DWDS pipelines and temporally at single locations due biofilm detachment, seasonality other processes. In this study, long- short-term ...

Journal: :International Journal of Applied Mathematics and Computer Science 2007

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