Abstract

Carbon-silica sorbent containing onion-like structures and simultaneously having sorption properties of both carbons and silicates was produced by carbonization of a mixture of silica sapropel and hydrolytic lignin at 20–700°C. The sorption characteristics of the sorbent with respect to radioactive nuclides (90Sr, 90Y, 137Cs, 232Th, 238U, 239Pu) and oil were determined. It was shown that the carbon-silica sorbent accelerates the biodegradation of oil in soil.

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