نتایج جستجو برای: water treatment

تعداد نتایج: 1892992  

2012

Two types of applicators, an inductive applicator and capacitive electrodes, are used to compute the temperature elevation during the treatment of the shoulder, hip and spine in a numerical male model (NORMAN). The used thermal model is based on the Pennes Equation and has been extended by additional thermoregulatory mechanism. The blood flow and metabolic rate are elevated as a function of the...

2011
Kim Zarse Takeshi Terao Jing Tian Noboru Iwata Nobuyoshi Ishii Michael Ristow

PURPOSE Lithium is a nutritionally essential trace element predominantly contained in vegetables, plant-derived foods, and drinking water. Environmental lithium exposure and concurrent nutritional intake vary considerably in different regions. We here have analyzed the possibility that low-dose lithium exposure may affect mortality in both metazoans and mammals. METHODS Based on a large Japan...

2012
Jinsong Zhang Ethan W Taylor Xiaochun Wan Dungeng Peng

BACKGROUND Elemental selenium nanoparticles have emerged as a novel selenium source with the advantage of reduced risk of selenium toxicity. The present work investigated whether heat treatment affects the size, structure, and bioactivity of selenium nanoparticles. METHODS AND RESULTS After a one-hour incubation of solution containing 80 nm selenium particles in a 90°C water bath, the nanopar...

Journal: :محیط زیست طبیعی 0
امیررضا کشتکار استادیار گروه مدیریت مناطق بیابانی، مرکز تحقیقات بین المللی بیابان، دانشگاه تهران، تهران محمدرضا احمدی پژوهشگر بخش آب و محیط زیست، پژوهشکدۀ سنگ آهن و فولاد، شرکت معدنی و صنعتی گل‏گهر، سیرجان، کرمان هادی آتشی دانشیار بخش علوم دامی دانشکدۀ علوم کشاورزی، دانشگاه شیراز، شیراز حسین حمیدی فر استادیار بخش مهندسی آب، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز سیدمهدی رضوی کارشناس ارشد مهندسی منابع طبیعی، مهندسان مشاور سبخا، اراک حمیدرضا ناصری استادیار گروه مدیریت مناطق بیابانی، مرکز تحقیقات بین المللی بیابان، دانشگاه تهران، تهران احمد یزدان پناه

the aims of this study were to evaluate the treatment efficiency and effectiveness of vetiveria zizaniodesof two samples of unconventional water of golgohar mining and industrial company. the experimental samples were included mine wastewater and saline ground water. this research was conducted in a greenhouse at central water research laboratory of university of tehran. this experiment was des...

Afshin Ebrahimi, Fazel Mohammadi-Moghaddam, Hmid Reza Tashauoei, Hossain Ataeifar, Mokhtar Mahdavi, Yaghob Hajizadeh,

Background & Aims of the Study: In some situation like rainfall seasons raw water become very turbid so it affected the water treatment plant processes and quality of produced water. Treatment of very high turbid water has some concerns like precursors for disinfection by-products and very loading rate of particle on filter's media and consequently increases in water consumptio...

In order to investigate the effect of palm leaf biochar on some characteristics of Cucumis melo L. under drought stress, a split plot experiment was conducted in a completely randomized block design with three replications for two consecutive years. The main plot was irrigation level (60, 85, and 100% water requirement) and subplot was biochar in four levels (0, 0.18, 0.24, and 0.36 kg/m2). Res...

The growing scarcity of fresh water is driving the implementation of wastewater treatment and water reuse on an increasingly large scale. Various methods have been developed and used for water reuse from wastewater; however, the membrane distillation (MD) process, as a promising separation technology, has recently gained more attention. The MD process is a non-isothermal membrane-based separati...

Journal: :به زراعی کشاورزی 0
مریم سلطانیان دانشجوی کارشناسی ارشد، گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران علی تدین دانشیار گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران سیف اله فلاح دانشیار گروه زراعت، دانشکدة کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران

to evaluate the effect of arbuscular mycorrhizal fungi under water deficit stress on linseed, a field experiment was conducted as split-plot in rcbd design with three replications at the research station of faculty of agriculture at shahrekord university in 2013. water deficit stress at four levels of no stress, mild, medium and severe stress as main factor and inoculation with glomus intraradi...

2015
A. Abdulkarim

This paper reports the potential of watermelon seed as a natural coagulant for water treatment. It was aimed at identifying watermelon seed as a possible replacement for alum and other synthetic polyelectrolytes in treating water. Laboratory scale studies using jar test experiments were performed on medium turbid water to determine the effect of dosage, pH stirring time and speed on coagulation...

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