Arik J. Kilsin CEO of Kislin Environmental announces new technique for making carbon-free rice husk ash
Heating husks to 800 degrees centigrade in an oxygen-free furnace drives off carbon, leaving fine particles of nearly pure silica behind.
- (1888PressRelease) September 17, 2010 - Kislin Environmental finds a way to make nearly carbon-free rice husk ash for concrete. Scientists have recognized the potential value of rice husks as a building material for decades, but past attempts to burn it produced an ash too contaminated with carbon to be useful as a cement substitute. Rice husks form small cases around edible kernels of rice and are rich in silicon dioxide, an essential ingredient in concrete.
The world's penchant for consuming concrete is a huge problem for climate change. Every ton of cement manufactured for use in concrete emits a ton of the greenhouse gas carbon dioxide (CO2) into the atmosphere. Worldwide, cement production accounts for about 5 percent of all CO2 emissions related to human activity.
Adding the ash makes concrete stronger and more resistant to corrosion. The team speculates that rice husk ash could enhance performance by replacing up to 20 percent of the cement typically mixed into concrete in the construction of skyscrapers, bridges and any structure built on or near water.
If production is scaled up to use all of the rice husks produced in the United States, they could produce 2.1 million tons of ash each year. The potential is even greater overseas, especially in developing countries such as China and India, where rice and concrete consumption are much higher.
About Kislin Environmental
Kislin Environmental is an integrator of some of the world's most innovative environmental and infrastructure technologies. Kislin Environmental provides systems that are financially sound and sustainable to residential, commercial, industrial and government markets around the globe. Kislin Environmental provides energy-efficiency products, energy management systems, eco-friendly infrastructure, scalable waste-to-fuel bio-fuel and closed loop systems, as well as other proprietary technologies and products that are utilized to provide a greener and safer future for millions of people.
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