The high energy and cost to purify water from hazardous waste is a tremendous challenge to date. However, this will be overcome in the future.
According to the report which quoted from Biomicrofluidics journal, published by the American Institute of Physics, a system that combines two different technologies have been found.
That system will describe the pollutant using the cheapest energy source in the world, namely the sun. The mechanism
Microfuidics - transporting water through small canals - and photocatalyisis - using light to break down impurities - combined with the method optofluidics .
"During these two technologies have been developed in parallel, but just a little effort made to exploit synergies between the two, "said Zhang Xuming, researchers from Hong Kong Polytechnic University, as quoted by the ScienceDaily, January 20, 2011.
From the test results, Zhang said, it appears there was a striking increase of the efficiency of photocatalyst .
At the trial, researchers create microfluidic reactor or microreactor consisting of a rectangular tube which has two glass plates coated with titanium dioxide , which is the active ingredient in protective creams skin from the sun.
When exposed to sunlight, it issued a layer of electrons that react with pollutants in water and then decipher them into harmless substances. This is part photocatalysis of the process.
high surface area in microreactor improve the ability of catalyst to capture sunlight. Although the distance between the plates is small, Zhang plans to enlarge the dimensions of the rectangle into two meters.
"These small-scale trials have proved the concept that we made but we also will enlarge the scale of the reactor that can stream up to 1,000 liters of water per hour," he said.
If a larger reactor proved successful, said Zhang, a number of tools are arranged in parallel can be used to manage cleaning water in industrial installations.
"During these two technologies have been developed in parallel, but just a little effort made to exploit synergies between the two, "said Zhang Xuming, researchers from Hong Kong Polytechnic University, as quoted by the ScienceDaily, January 20, 2011.
From the test results, Zhang said, it appears there was a striking increase of the efficiency of photocatalyst .
At the trial, researchers create microfluidic reactor or microreactor consisting of a rectangular tube which has two glass plates coated with titanium dioxide , which is the active ingredient in protective creams skin from the sun.
When exposed to sunlight, it issued a layer of electrons that react with pollutants in water and then decipher them into harmless substances. This is part photocatalysis of the process.
high surface area in microreactor improve the ability of catalyst to capture sunlight. Although the distance between the plates is small, Zhang plans to enlarge the dimensions of the rectangle into two meters.
"These small-scale trials have proved the concept that we made but we also will enlarge the scale of the reactor that can stream up to 1,000 liters of water per hour," he said.
If a larger reactor proved successful, said Zhang, a number of tools are arranged in parallel can be used to manage cleaning water in industrial installations.
Source: VIVAnews
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