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.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/05/180531102816.htm
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