نتایج جستجو برای: chahnimeh water reservoirs

تعداد نتایج: 564595  

ژورنال: سلامت و محیط زیست 2019

Background and Objective: Chahnimeh water reservoirs in Sistan and Baluchestan Province are the most important sources for drinking water and irrigation purposes. Many factors such as precipitation, the geography of the watershed, atmosphere, geology and Human activities affect on the chemical, physical, and biological compositions of Chahnimeh water reservoirs. Therefore, the main goal of the ...

Journal: :ecopersia 0
mohammad reza dahmardeh ghaleno ph.d. candidate, department of watershed management, gorgan university of agricultural sciences and natural resources, gorgan, iran amir sadoddin associate professor, department of watershed management, gorgan university of agricultural sciences and natural resources, gorgan, iran vahedberdi sheikh associate professor, department of watershed management, gorgan university of agricultural sciences and natural resources, gorgan, iran mahmood sabouhi sabouni professor, department of agricultural economics, ferdowsi university of mashhad, iran

the optimal allocation of the chahnimeh water resources among different sectors, viz. domestic, agricultural and environmental consumptions, was determined using the goal programming method in gams, based on the present condition in the area. results showed an increase of 15.4, 44.5 and 230% in allocation of water to domestic, agriculture and environment sectors, respectively, in this method as...

رجایی, قاسم, جهانتیغ, حمید, حسن پور, مهدی, حصاری مطلق, سمانه, میر, عاطفه ,

Background and purpose: For environmental protection, public health, and pollution control, we must have precise information about the extent of pollutants, especially, heavy metals in water environments. Having high stability, heavy metals can produce danger in living organisms. Therefore, the present research was conducted to assess the Concentration of heavy metals and compare the findings w...

Journal: Iranian Economic Review 2019

The main objective of the present study was to prioritize the allocation of water resources of Chahnimeh reservoirs from economic, social, and environmental perspectives in 2015-2016 season using fuzzy analytic hierarchy process (FAHP) and fuzzy technique for order preference by similarity of an ideal solution (FTOPSIS) as the branches of fuzzy multiple-criteria decision-making (MCDM) models. D...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

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. ...

A. Rahdari al. et

After around a hundred years of being without any record of occurrence of Paracobitis rhadinaea, a species of Nemacheiline loach, in Sistan basin, southeast of Iran, the year 2012 was the turning point of wild life in this area. Twenty-five specimens were caught from Chahnimeh Reservoir, a water body adjacent to the Hamoun Wetland in Sistan basin. Morphometric and meristic characteristics were ...

2011
Maarten S. Krol Pieter R. van Oel José Carlos de Araújo

Semi-arid river basins often rely on reservoirs for water supply. Small reservoirs may impact on large-scale water availability both by enhancing availability in a distributed sense and by subtracting water for large downstream user communities, e.g. served by large reservoirs. Both of these impacts of small reservoirs are subject to climate change. Using a case-study on North-East Brazil, this...

2014
Qing Gu Jinsong Deng Ke Wang Yi Lin Jun Li Muye Gan Ligang Ma Yang Hong

Various reservoirs have been serving as the most important drinking water sources in Zhejiang Province, China, due to the uneven distribution of precipitation and severe river pollution. Unfortunately, rapid urbanization and industrialization have been continuously challenging the water quality of the drinking-water reservoirs. The identification and assessment of potential impacts is indispens...

2003
Javier Paredes

Abstract This paper presents a spill-minimizing operating policy for refill of reservoirs in parallel for water supply considering water quality criteria. First a Linear Programming form of the New York City Rule is developed. Next, this formulation is extended to consider stratified water quality in the reservoirs and a requirement of water quality for the downstream demand. Both approaches ar...

Journal: :environmental health engineering and management 0
mohammad fahiminia environmental health engineering, research center for environmental pollutants, qom university of medical sciences, qom, iran hossein jafari mansoorian environmental health engineering research center, department of environmental health, kerman university of medical sciences, kerman, iran mohsen ansari environmental health engineering, school of public health, qom university of medical sciences, qom, iran ali saifour mofrad environmental health engineering, school of public health, qom university of medical sciences, qom, iran gharib majidi environmental health engineering, school of public health, qom university of medical sciences, qom, iran reza ansari tadi environmental health engineering, urban water & wastewater company of qom province, qom, iran

background: this study aimed to evaluated trends for iron and manganese concentrations in wells, reservoirs, and water distribution networks in qom city during the summer of 2012. methods: this was a cross-sectional study. the studied scopes consisted of groundwater (60 wells), reservoirs (10 tanks), and water distribution network (33 points). one sample was taken from each source monthly. stat...

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