نتایج جستجو برای: desalination instrument

تعداد نتایج: 87483  

2007
I. Alameddine M. El-Fadel

Desalination was for long considered a technology too expensive to adopt in most arid countries except those with large reserves of fossil fuels and affluent economies. Recent advances in desalination technology have abolished this old paradigm and have increased its market share in many arid and semi-arid countries. Nevertheless, the introduction of a desalination plant will inevitably be asso...

Journal: :Environmental science. Processes & impacts 2013
Bahareh Kokabian Veera Gnaneswar Gude

Current microbial desalination cell (MDC) performances are evaluated with chemical catalysts such as ferricyanide, platinum catalyzed air-cathodes or aerated cathodes. All of these methods improve power generation potential in MDCs, however, they are not preferable for large scale applications due to cost, energy and environmental toxicity issues. In this study, performance of microbial desalin...

2015
Tushar Jain Haizhou Liu

The overarching goal of this research project is to develop technologies for beneficial salinity management. Specifically, the project focuses on the energy and resources recovery from reverse osmosis (RO) desalination concentration, which can reduce the cost associated with desalination operation and minimize the environmental impact associated with the disposal of desalination concentrate. Th...

2017
Enrico Drioli Aamer Ali Francesca Macedonio Mohamed Khayet

Process intensification strategy (PIS) is emerging as an interesting guideline to revolutionize process industry in terms of improved efficiency and sustainability. Membrane engineering has appeared as a strong candidate to implement PIS. The most significant progress has been observed in desalination where substantial reduction in overall energy demand, environmental footprint, and process haz...

Journal: :Environmental Health Perspectives 2000
C G Reuther

Despite steady advances in the technology, desalination remains one of the most expensive ways to produce potable water. But as water scarcity forces communities to find new sources of drinking water, scientists are developing innovations that may soon make desalination a reasonable option for many more communities. The newest approach to desalination is membrane systems, which include reverse ...

2004
Christopher R. Jones

For desalination to succeed in Texas, reliable, cost-effective, and adoptable technologies are needed. This will require scientific advances in pretreatment, characteristics of different sources of saline water, methods of salt separation, disposal of brine, effects of byproducts on the environment, and management of desalination facilities. Scientists at universities across Texas are investiga...

2013
Ghasem D. Najafpour Ali A. Tofigh

At low pressure and temperature, water is easily vaporized under partial vacuum pressure. Desalination of seawater as source of potable water is globally considered as an applied reliable technology. At low temperature and pressure, the heat transfer process yield is higher than any normal process. Therefore, the rate of vaporization of seawater is much higher than any usual processes. The part...

Journal: :Environmental science & technology 2009
Xiaoxin Cao Xia Huang Peng Liang Kang Xiao Yingjun Zhou Xiaoyuan Zhang Bruce E Logan

Current water desalination techniques are energy intensive and some use membranes operated at high pressures. It is shown here that water desalination can be accomplished without electrical energy input or high water pressure by using a source of organic matter as the fuel to desalinate water. A microbial fuel cell was modified by placing two membranes between the anode and cathode, creating a ...

2014
Pablo K. Cornejo Mark V. E. Santana David R. Hokanson James R. Mihelcic Qiong Zhang

As population and water demand increase, there is a growing need for alternative water supplies from water reuse and desalination systems. These systems are beneficial to water augmentation; however, there are concerns related to their carbon footprint. This study compiles the reported carbon footprint of these systems from existing literature, recognizes general trends of carbon footprint of w...

2014
Kyle N. Knust Dzmitry Hlushkou Ulrich Tallarek Richard M. Crooks

Fresh water is required to sustain life. However, the world is facing a global challenge to reliably supply its population with safe water due to shortages stemming from population growth, climate change, contamination of available fresh water supplies, and public policy. Presently, the United Nations estimates that one third of the world’s population ( 2.4 billion people) is living in water-st...

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