نتایج جستجو برای: dam reservoirs

تعداد نتایج: 31736  

Journal: :journal of tethys 0

electrokinetic remediation is one of the most promising in situ or ex situ processes for decontamination of heavy metals, anions and polar organic compositions from the soil. in this study, we investigated the efficacy of this method in removing mercury from clayey soil (with kaolin to sand weight ratio of 2:1) and from gold mine tailing dam sediment and determined optimum removal conditions. t...

Journal: :اکو هیدرولوژی 0
مریم یزدان پرست دانشجوی کارشناسی ارشد آبخیزداری، دانشکدۀ منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد، مشهد ابوالفضل مساعدی استاد، دانشکدۀ منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد، مشهد سعیدرضا خداشناس استاد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد، مشهد علی گلکاریان استادیار، دانشکدۀ منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد، مشهد محمد حسین محمودی قرائی دانشیار، دانشکدۀ علوم، دانشگاه فردوسی مشهد، مشهد

today, water resources stored in reservoirs is one of the basic sources of drinking-water. the elements in the sediments of reservoirs are the most important factors affecting water quality. unlike the primary plan, due to water shortage problems, nowadays, almost all the stored water in the kardeh reservoir is allocated to drinking water. from the other side in the catchment area of this dam a...

2012
Muhammad Khurram Zahoor Azam Khan

Well testing is of great importance in petroleum engineering, to have a kind of firsthand knowledge and estimating formation permeability, wellbore damage/ skin, etc. These parameters are further required to estimate production rate from a well and at the same time gives an idea of its productivity. These reservoir related parameters calculation is strongly dependent on formation thickness. Any...

Density or gravity currents have been always one of the main causes for sedimentation along many of the dam reservoirs. So controlling this phenomenon is very important for increasing useful life of such reservoirs. In this research study the effect of a combination of rough bed and obstacle on the control of sedimentary density current has been investigated. Experiments were conducted in a til...

Journal: :Journal of Water Resources Planning and Management 2023

Water storage reservoirs can be either sustainable or exhaustible. In the absence of sediment management, reservoir is an exhaustible resource with long-term consequences. Previous economic planning essentially guaranteed non-sustainable solutions. This paper describes a new paradigm for assessments and existing reservoirs. The provides framework comprehensive accounting benefits costs over suf...

Journal: :journal of research in health sciences 0
keywan weysi heshmatollah nourmoradi mohammad reza samarghandi mohammad taghi samadi

background: eutrophication is one of the detrimental environmental problems in water reservoirs dye to the irregular introducing nutrients (phosphorus and nitrogen). this study aimed to explore the eutrophication state of ekbatan reservoir, hamadan, western iran. methods: monthly sampling was conducted during april 2010 to march 2011. seven sampling stations were selected in the various locatio...

2017
Nicole M. Hayes Bridget R. Deemer Jessica R. Corman N. Roxanna Razavi Kristin E. Strock

Lakes and reservoirs are recognized as important sentinels of climate change, integrating catchment and atmospheric climate change drivers. Climate change conceptual models generally consider lakes and reservoirs together despite the possibility that these systems respond differently to climate-related drivers. Here, we synthesize differences between lake and reservoir characteristics that are ...

ژورنال: آبخیزداری ایران 2019

Soil is one of the most important natural resources of any country. the erosion causes not only the depletion of the soil and the loss of the land, causing great and irreparable damages, but also with the deposition of materials in streams, reservoirs, ports, and reduced pool capacity. Therefore, it should not be underestimated. In this study, we identify and zoning of the erosion areas in the ...

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