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Oil and gas wastewater as dust suppressant less than ideal

At the least, wastewater from oil and gas drilling should be treated in a waste treatment facility before it is used on dirt roads to suppress dust or deice roads. At the best, affordable, nontoxic dust suppressants should be developed and used, according to a multidisciplinary team of researchers. “Thirteen…

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Cementless fly ash binder makes concrete ‘green’

Engineers use byproduct from coal-fired power plants to replace Portland cement Rice University engineers have developed a composite binder made primarily of fly ash, a byproduct of coal-fired power plants, that can replace Portland cement in concrete. The material is cementless and environmentally friendly, according to Rice materials scientist Rouzbeh…

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Using coal waste to create sustainable concrete

New coal concrete reduces energy demand, greenhouse emissions Washington State University researchers have created a sustainable alternative to traditional concrete using coal fly ash, a waste product of coal-based electricity generation. The advance tackles two major environmental problems at once by making use of coal production waste and by significantly…