نتایج جستجو برای: aquatic environments are often contaminated by various industrial

تعداد نتایج: 9234288  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

2015
Anita Sharma Sarita Sachdeva

Cumulative effect of urbanization, industrialization and population growth is increasing pressure on the limited natural resources. The change in living style has aggravated the problems. Among the diverse environmental problems, the discharge of heavy metals in environment through industrial, agricultural and domestic activities is of great concern. Removal of heavy metal from environment is a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده زبانهای خارجی 1393

writing an academic article requires the researchers to provide support for their works by learning how to cite the works of others. various studies regarding the analysis of citation in m.a theses have been done, while little work has been done on comparison of citations among elt scopus journal articles, and so the dearth of research in this area demands for further investigation into citatio...

ژورنال: طلوع بهداشت یزد 2014
سبحان اردکانی, سهیل, صحرایی, رضا, عین القضاتی2 , شیوا,

Abstract Introduction: Dyes in industrial wastewater are major pollutants that are difficult to treat due to their complex molecular nature and synthetic origin. EBT is one of azo dyes that has been used in the cosmetics, health and medicine products. Due to its high solubility in aqueous environments and high shelf life, the inseparability of the biological magnification by organic compounds ...

Journal: :Environmental science & technology 2004
David M Borrok Jeremy B Fein Charles F Kulpa

To model the effects of bacterial metal adsorption in contaminated environments, results from metal adsorption experiments involving individual pure stains of bacteria must be extrapolated to systems in which potentially dozens of bacterial species are present. This extrapolation may be made easier because bacterial consortia from natural environments appear to exhibit similar metal binding pro...

Journal: :international journal of environmental research 2011
z. clemente v.l. castro c.m. jonsson l.f. fraceto

the production and use of synthetic nanoparticles is growing rapidly, and therefore the presence of these materials in the environment seems inevitable. titanium dioxide (tio2) presents various possible uses in industry, cosmetics, and even in the treatment of contaminated environments. studies about the potential ecotoxicological risks of tio2 nanoparticles (nano-tio2) have been published but...

Journal: :international journal of environmental research 0
z. clemente department of biochemistry, institute of biology, state university of campinas – unicamp, rua monteiro lobato, 255, cep 13083-862 campinas, sp, brazil v.l. castro laboratory of ecotoxicology and biosafety, embrapa, rodovia sp340 km 127.5, c.p. 69, cep 13820-000 jaguariúna, sp, brazil c.m. jonsson laboratory of ecotoxicology and biosafety, embrapa, rodovia sp340 km 127.5, c.p. 69, cep 13820-000 jaguariúna, sp, brazil l.f. fraceto department of biochemistry, institute of biology, state university of campinas – unicamp, rua monteiro lobato, 255, cep 13083-862 campinas, sp, brazil

the production and use of synthetic nanoparticles is growing rapidly, and therefore the presence of these materials in the environment seems inevitable. titanium dioxide (tio2) presents various possible uses in industry, cosmetics, and even in the treatment of contaminated environments. studies about the potential ecotoxicological risks of tio2 nanoparticles (nano-tio2) have been published but ...

2016
Divya Singh Richa Gupta Archana Tiwari

This investigation was undertaken to study Pb uptake by small free floating aquatic plant Lemna minor from wastewater polluted by contaminated with heavy metals. Metal accumulation process was affected by various parameters such as different pH, temperature and concentration of Pb solution. Total chlorophyll contents in Lemna minor was adversely affected from increased with increasing Pb concen...

Journal: :iranian j. of fisheries science 0

most minerals, occurring in aqueous environments, play a key role in the survival rate of aquatic living organisms. however, life situation of the living organisms would be under attack when the contents of these elements exceed than the specified limit because of various reasons (amini ranjbar, 1994). bioaccumulation of the elements in living organisms and their excess concentration than stand...

Abstract Land salinization is a major obstacle to the sustainable development of agriculture in arid regions. The demand for food, fiber, fuel and fresh water has increased in the recent decades, particularly in developing nations, due to alarming rise in population. As fresh water resources and productive lands for crop production are limited, new strategies for the sustainable utilization of ...

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