Removal of Petroleum Products from Water using Disperse and Fibrous Sorbents

Water-soluble and emulsified petroleum products were removed from water using ultrafine oxyhydroxide of aluminium and fibrous materials (polypropylene, carbon fiber and basalt) under static and dynamic modes. Combined application of the dispersed materials and fibers in multi-layer filters-adsorbents was demonstrated to be effective in water purification from petroleum products of various dispersions in a wide range of their concentrations. Filtering-adsorption technology has been developed to purify petroleum-containing sewage, which was realized as a set of filter-adsorption equipment. The capacity of the installation consisting of 6 apparatus is 1 - 5 m(3)/h at the initial concentration of petroleum products 10 - 300 mg/L. Total degree of petroleum product removal at three levels amounts to 98 %. Besides petroleum products ions of heavy metals, organic contaminants, surfactants and other substances are also removed.