نتایج جستجو برای: water distribution system

تعداد نتایج: 3171825  

Journal: :Applied and environmental microbiology 2013
S Dubrou J Konjek E Macheras B Welté L Guidicelli E Chignon M Joyeux J L Gaillard B Heym T Tully G Sapriel

Nonpigmented and late-pigmenting rapidly growing mycobacteria (RGM) have been reported to commonly colonize water production and distribution systems. However, there is little information about the nature and distribution of RGM species within the different parts of such complex networks or about their clustering into specific RGM species communities. We conducted a large-scale survey between 2...

Journal: :physical chemistry research 0
h ghanadzadeh gilani ali ghanadzadeh gilani departent of chemistry, university of guilan. rasht, iran f borji peydeh s.l. seyed saadat s ahmadifar

liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 k. the studied systems exhibit two types of liquid-liquid equilibrium (lle) behavior. the system consisting of benzyl alcohol displays type-1 lle behavior, while a type-2 behavior is exhibited by the other s...

Ali Shahryari, Mohamad Gharekhan Alostani, Rahim Aali, Zahra Mirshekar,

Introduction: As recommended by World Health Organization, consumption of the fungal contaminated water does not cause to serious infection, but may lead to healthy or aesthetic problems. The aim of this research was to assess the occurrence of fungi in water and its relationship with fecal indicator bacteria. Materials and Methods: 110 water samples were collected from different location of w...

ژورنال: علوم آب و خاک 2020

This study focused on proposing a new operational perspective within main and lateral irrigation canals based on the economic value of water. To achieve this objective, the operation-economic framework offered in this study consisted of two main components of the PMP model and Operation model. The estimated economic values of water in different regions of the network were employed as the starti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1391

هدف اصلی در این تحقیق مدیریت و برنامه ریزی جامع در راستای استفاده بهینه از منابع آب موجود سد بافت، با استفاده از نرم افزارweap و تأمین تقاضا در بخش های مختلف کشاورزی، صنعتی و شرب، با توجه به رشد نیاز آنها در آینده می باشد. به همین منظور ابتدا سد بافت در محیط مدل weap شبیه سازی شد و مدل برای شرایط پایه و هشت سناریوی مختلف طرح های توسعه اجرا گردید. با توجه به نتایج بدست آمده برای سناریوی تقاضای ش...

Journal: :Journal of water and health 2004
M M Aral J Guan M L Maslia J B Sautner R E Gillig J J Reyes R C Williams

The New Jersey Department of Health and Senior Services (NJDHSS), with support from the Agency for Toxic Substances and Disease Registry (ATSDR) conducted an epidemiological study of childhood leukaemia and nervous system cancers that occurred in the period 1979 through 1996 in Dover Township, Ocean County, New Jersey. The epidemiological study explored a wide variety of possible risk factors, ...

2004
Rehan Sadiq Yehuda Kleiner Balvant Rajani

The pathways, through which water quality in the distribution network can be compromised, may be classified into five categories: intrusion of contaminants into the distribution system (e.g., through cross connection), regrowth of bacteria in pipes and distribution storage tanks, water treatment breakthrough, leaching of chemicals or corrosion products from system components (pipes, tanks, line...

Background & Aims of the Study: Corrosion and scaling play undesirable effects on transmission and distribution system of drinking water. The aim of this study was to assess the corrosion and scaling potential of drinking water resources in Babol city, Iran. Materials and Methods: Totally, 54 water samples were collected from 27 wells in spring and autumn. Calcium har...

2017
Abebe Beyene

Background: Water quality problems are one of the manifestations of poverty and most developing countries including Ethiopia suffering a lot of health problems associated with consumption of contaminated water. Although communities living in urban areas of Ethiopia have access to piped water supply, cross-contamination in the distribution system and unsafe storage are the major source of water ...

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