MODIFICATION OF THE SLUDGE FROM SODA PRODUCTION

The problem of disposal of sludge from soda production is relevant in the Republic of Bashkortostan. Sludge from soda production are dumped into sludge collectors, which have a negative impact on the environment. There is a threat of contamination of groundwater with a highly mineralized still waste liquid. The increase of sludge in sludge reservoirs creates additional pressure and increases infiltration into groundwater. These processes are harmful for the ecological situation in the region. In this paper modification of soda sludge produced by organosilicon liquid, sodium liquid glass and stearic acid. Dependencies of change of oil capacity index on gasoline with respect to time were investigated. Analysis of results was carried out and optimal formulation of sorbent based on soda sludge for utilization of liquid phase of oil sludge was revealed. As a result of the studies of liquid glass as a hydrophobic compound it was found that small fractions of modified soda sludge repel water, creating a greasy sediment at the bottom, and granules, in turn, allow water to be absorbed and filtered without breaking their shape. To use modified soda sludge with liquid glass as a filter media in cassettes, granulation by extrusion is recommended. The resulting sorption materials based on the modification of soda sludge with sodium liquid glass can be recommended for use in facilities for the treatment of surface and waste water from heavy metal ions.