Modification of the sludge from soda production for producing oil sorbents
E. V. Kalinina, I. S. Glushankova, L. V. Rudakova
Section: Ecologization of industry
At present, the volume of accumulated sludge from soda production is more than 50 million tons and the issue of their utilization is topical. The paper presents the results of studies on the production of oil sorbents based on soda production
sludge, the main component of which is calcium carbonate. Reagent modification of sludge from soda production allows obtaining materials that have sorption activity to oil and petroleum products. It is established that the oil capacity of
samples of initial sludge of soda production is 0.95 for gasoline; on engine oil – 0,9; for oil – 0.75 g/g. Reagent treatment of soda production sludge by sodium methylsiliconate or potassium methylsiliconate increases the petroleum capacity
on gasoline by 30%; on engine oil – by 80%; for oil – by 73%. Obtained sorbents can be used for liquidation of oil and oil product spills from solid surfaces. For the liquidation of oil and oil product spills from the surface of water bodies, soda
production sludge of less than 0.1 mm fraction obtained by modification with sodium methyl siliconate or potassium methylsiliconate with a working dose of 1.5–1.8% by weight of active substance and heating to a temperature of 90 °C may be recommended. Based on the results of the research, two environmental objectives can be achieved: new oil sorbents are obtained and a method for the utilization of sludge from soda production is proposed. The cost of oil sorbents based on waste will be low, due to the zero cost of the raw materials – waste products of soda production.
ISSN 1995-4301
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