نتایج جستجو برای: heavy water

تعداد نتایج: 665186  

2007

Little is publicly known about the efficiency and economics of heavy water production at the Department of Atomic Energy’s facilities. We estimate the cost of producing heavy water at the Manuguru plant by analysing the available budget figures and assuming reasonable values for other factors that affect the cost and whose values are not publicly available. Our results suggest that the producti...

2009
Chi Kyu Ahn Young Mi Kim Seung Han

Soil washing process with a surfactant solution is a potential technology for the rapid removal of hydrophobic organic compound (HOC) from soil. However, large amount of washed water would be produced during operation and this should be treated effectively by proper methods. The soil washed water for complex contaminated site with HOC and heavy metals might contain high amount of pollutants suc...

احمدی انگالی, کامبیز, تکدستان, افشین, جعفرزاده حقیقی فرد, نعمت الله, رمضانی, زهرا, زهره وند, فاطمه, غریبی, حوریا, نظر زاده, عادل,

Background and purpose: Heavy metals due to non-biodegradability and having physiological effects on living organisms are particularly important. Due to the low mobility, these elements gradually accumulate in soil and eventually enter the food chain and threaten human and other organism’s health. Therefore, measurement and monitoring of heavy metal concentrations is necessary to . The aim of t...

2012
Satpal Singh Satpal Singh Bisht

The present study was designed to evaluate the heavy metal absorbing potential of bacteria isolated from industry effluent sites of river Nagavali, Srikakulam Andhra Pradesh. From the effluent waste water three bacteria were isolated and confirmed as Staphylococcus aureus and Staphylococcus epidermidis and Staphylococcus saprophyticus after performing various biochemical tests. The heavy metal ...

Background: Due to the increasing pollution of water resources, this study was carried out for evaluation of water quality pollution indices for monitoring of heavy metals (As, Zn, Pb and Cu) contamination in Ghahavand Plain, Hamadan Province, Western Iran during spring and summer 2012. Methods: Totally, 20 ground water wells were chosen randomly. The samples were filtered (0.45 μm) and m...

Journal: :مجله علوم تکثیر و آبزی پروری 0
مریم ایزدی maryam izadi ahwazاهواز ابوالفضل عسکری abolfazl askari ahwazاهواز مهران جواهری mehran javaheri ahwazاهواز مژگان خدادادی mozhgan khodadadi ahwazاهواز

this study aims to measure the amount of heavy metal lead in the effluent haft tapeh and compare it with dez river in winter 2010 and spring 2011. first nine water samples using a rope marked at the desired depth within the sampling depth of effluent technology cultured in three stations in haft tapaeh. hence measuring the concentration of heavy elements using graphite furnace method and atomic...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
kobra ayaseh hamidreza azimzadeh fatemeh shahbazikafraj ahad setoode

due to the lack of water quality of resourses in country, exact review of available water resources quality, especially in terms of heavy elements (heavy metals) has a particular importance. due to industrial towns 1 and 2 of yasuj city and also yasuj wastewater treatment, surveying environmental harmful effects of heavy metals on this river is very important. to investigate the changes of heav...

2013
Neveen El-Bakary

The present study was suggested in order to explore the capability of water treatment plants to induce changes in organisms using the fish as a model. To achieve such a purpose, Oreochromis niloticus were chosen as a test material for the study. Two hundred apparently healthy Oreochromis niloticus were divided into 7 groups (control and 3 different WTPs) to assess differences developed from wat...

2012
RAVI KANT KANNAUJIA SURJEET SINGH

Heavy metal pollution has become a serious health concern in recent years, because of industrial and agricultural development. Heavy metals of industrial bio-waste contaminate drinking water, food and air. The toxic heavy metals of great concern are Cd, Pb and Hg which are usually associated with harmful effects in men and animals. It is recognized that heavy metals may exercise a definite infl...

Journal: :international journal of environmental research 0

flocculation processes during estuarine mixing can reduce the elemental concentrations of river water. in the present investigation, natural flocculation processes concept is used to reduce the elemental contents of industrial wastewater. for this purpose, various amounts of saline water were added to an artificial industrial wastewater with known concentrations of heavy metals. the results of ...

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