Ash from power stations processed into reagents for water purificationRussian metallurgists have pro
Ash from power stations processed into reagents for water purificationRussian metallurgists have proposed to dissolve the ash waste of thermal power stations with hydrochloric acid at high pressure. The resulting compounds can be used for water treatment at water utilities and thermal power stations themselves. The method has already shown effective deposition of impurities in water from Moskva river. The description of the technology is published by scientists from NUST MISIS and a number of other universities in Journal of Cleaner Production. The research is funded Russian science Foundation under the Presidential Program for Research Projects.Although the share of coal-fired generation in Russia has been gradually decreasing since the 90s, it still makes up a large part of the country’s entire energy sector. In 2019, Russian thermal power stations generated more than 60% of all electricity produced in the country. In addition, the current volume of coal energy will not be reduced to prevent the Russian economy from depending on gas. However, this area is one of the least environmentally friendly. Coal-fired stations annually produce 20-25 million tons of ash and slag as waste. In Russia, more than 1.5 billion tons have already been buried already, and the sludge fields cover an area larger than the whole area of Israel.Read more. -- source link
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