نتایج جستجو برای: desalination of caspian sea water by silica nano

تعداد نتایج: 21694739  

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2016
D Hlushkou K N Knust R M Crooks U Tallarek

We present an effective numerical approach to simulate electrochemically mediated desalination of seawater. This new membraneless, energy efficient desalination method relies on the oxidation of chloride ions, which generates an ion depletion zone and local electric field gradient near the junction of a microchannel branch to redirect sea salt into the brine stream, consequently producing desal...

Journal: :international journal of environmental research 0
m. gholamalifard department of environment, faculty of natural resources, tarbiat modares university, noor, mazandaran, iran a. esmaili sari department of environment, faculty of natural resources, tarbiat modares university, noor, mazandaran, iran a. abkar faculty of geodesy and geomatics eng., k. n. toosi university of technology, tehran, iran b. naimi faculty of geo-information science and earth observation (itc), enschede, the netherlands

remotely sensed imagery is proving to be a useful tool to estimate water depths in coastalzones. bathymetric algorithms attempt to isolate water attenuation and hence depth from other factors byusing different combinations of spectral bands. in this research, images of absolute bathymetry using twodifferent but related methods in a region in the southern caspian sea coasts has been produced. th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

Journal: :تحقیقات جغرافیایی 0
امیر حسین حلبیان گروه علمی جغرافیا، دانشگاه پیام نور مهران شبانکاری دانشگاه فرهنگیان ، اهواز مهران شبانکاری دانشگاه فرهنگیان ، اهواز

in this research, the correlation between precipitation change in southern coasts of caspian sea and variability of sea level pressure have been analyzed by using environmental to circulation approach at time period 1339- 1383. in this respect, we make use of daily precipitation data of the 12 synoptic stations of studied area at surface data base section and prepare the time series matrix of p...

Journal: :archives of razi institute 2016
f. noohseresht h. zolfagarian m.a. zare

all desalination methods which are currently used have limitations. a newly designed instrument by zare a.m. was tested and compared with currently used method in razi vaccine and serum research institute(rvsri). samples of anti snake venom for desalination was provided by department of anti-serum, rvsri. parameters included in this study were time and water consumption during desalination proc...

F. Noohseresht H. Zolfagarian M.A. Zare

  All desalination methods which are currently used have limitations. A newly designed instrument by Zare A.M. was tested and compared with currently used method in Razi Vaccine and Serum Research Institute(RVSRI). Samples of anti snake venom for desalination was provided by department of anti-serum, RVSRI. Parameters included in this study were time and water consumption during desalination pr...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
mojtaba shamsipur narmin bahrami adeh mohammad sadegh hajitarverdi mostafa yazdimamaghani fatemeh zarei

in this paper the influence of two different sizes of silica particles (micro-silica and nano-silica) was studied on mechanical properties of sulfur and sulfur composite. to improve the structural properties, sulfur was plasticized using dicyclopentadiene (dcpd) and methyl styrene (mst). plasticized sulfur composite was prepared by melt blending of plasticized sulfur and silica particles. the i...

2012
Muthia Elma Christelle Yacou David K. Wang João C. Diniz

This review provides a global overview of microporous silica based membranes for desalination via pervaporation with a focus on membrane synthesis and processing, transport mechanisms and current state of the art membrane performance. Most importantly, the recent development and novel concepts for improving the hydro-stability and separating performance of silica membranes for desalination are ...

Journal: :محیط زیست طبیعی 0
مژگان میرزایی کارشناس ارشد مهندسی محیط‏زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد رضا معتضدی کارشناس ارشد مهندسی نفت (گرایش حفاری و بهره برداری)، دانشگاه آزاد اسلامی، واحد امیدیه آمنه نیکبختی کارشناس ارشد مهندسی محیط‏زیست دانشگاه علوم کشاورزی و منابع طبیعی گرگان

due to the location of a domestic, industrial and agricultural zone near the caspian sea, this water body has long been under pressure and environmental threat. as a result of development of oil production activities in caspian region, such as oil exploration and extraction, a large volume of oil related pollutants is released annually into this important water body. considering the fact that h...

2016
Kiwoong Kim Eunseok Seo Suk-Kyu Chang Tae Jung Park Sang Joon Lee

The scarcity of fresh water is a global challenge faced at present. Several desalination methods have been suggested to secure fresh water from sea water. However, conventional methods suffer from technical limitations, such as high power consumption, expensive operating costs, and limited system durability. In this study, we examined the feasibility of using halophytes as a novel technology of...

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