One of the most effective methods of oil removal from the water surface is sorption with solid sorbents. The issue of oil sorption by magnetic sorbents based on carbon-containing waste from coal, woodworking and livestock enterprises is considered in the article. In the course of the experiments, the time of sorption equilibrium onset was determined, a sorption curve was constructed, and its form was determined. According to the study, it is revealed that the developed magnetic sorbents have a maximum oil capacity of 3 g/g and show a high affinity for oil.
Abstract. The article shows the issues state of coal-mining enterprises carbonaceous wastes utilization, including by obtaining oil-sorbent. The characteristics of the feedstock are presented; experiment methods of obtaining a binder based on the livestock enterprises waste, of forming binder with filler (sawdust, coal waste); of pyrogenetic processing to obtain a sorbent are described. Possible options for the introduction of magnetite (a magnetic component) in the composition of the oil sorbent are considered: on the surface, in the volume of the granule and the magnetite core. In the course of the work it was found that the optimum content of coal dust in the sorbent granules is 75% by weight, and the most effective way of obtaining the magnetic sorbent is to apply the carbon material directly to the "core" of magnetite. However, in this case, the problem of finding an effective binder for magnetite arises. The option of applying magnetite on the surface of a carbon sorbent is not effective. Thus, at present, we use a mixture of coal waste, which binds to the uniform distribution of magnetite in the volume. The developed magnetic sorbents can be used in various weather conditions, including strong winds and icing of water bodies, as well as for small and medium currents.
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