نتایج جستجو برای: supplying potable water for tehran city
تعداد نتایج: 10647368 فیلتر نتایج به سال:
BACKGROUND Source of potable water has implication on the population health. Availability of Improved Drinking Water Sources (IDWS) is a problem in developing countries, but variation exists across segments of the population. This study therefore examined the relationship between wealth status, sex of household head and source of potable water. METHODS The 2013 Nigeria Demographic and Health ...
In Belém city is located the potable water supply system of its metropolitan area, which includes, in addition to this city, four more municipalities. In this water supply complex is the Água Preta lake, which serves as a reservoir for the water pumped from the Guamá river. Due to the great importance of this lake for this system, several works have been devoted to its study, from the monitorin...
this study intends to monitor and evaluate the thms concentration in the 7 different water districts in the city of tehran. thms are the main disinfectant by products (dbp) of chlorination, which are suspected to be human carcinogens. chlorination is used as the main disinfection process for the drinking water in tehran, therefore; it is important to monitor and evaluate the thm’s concentration...
Providing safe potable water onboard vessels presents particular challenges and contamination can occur directly from source waters as well as during loading, storage and distribution. Between May and October 2005, 950 potable water samples were collected from 342 ships docking at ports. Comparison with Guidelines found 9% of samples contained coliforms, Escherichia coli or enterococci and 2.8%...
The world faces critical food security issues due to the combined pressures of population growth, depletion of finite resources and uncertainty in future climate. Of particular concern is the depletion of stocks in wild fisheries, and land-based aquaculture is one response to this problem. This research will look at opportunities to engineer highly efficient, integrated food production systems ...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...
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