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Oil and gas production, still being the Russian leading industry, at the same time remains one of the most environmentally damaging. Its producing facilities being innately fire and explosion hazardous, the industry constantly threats the environment

Acid sludge (also referred to acid tar) is one of the main type of oil refining industry waste. It is formed by the purification of petroleum products, apparatuses and tanks by concentrated sulfuric acid. Refinery acid sludge is highly viscous tar-like