Abstract
Methods of reclamation of silt fields and biological methods of their purification are presented. It is shown that purification is possible due to dehydration of sediments and their membrane composting. The study and improvement of these technologies is key for the improvement and ennoblement of swampy, near-sea and other areas. Membrane composting has been found to help solve the following problems: silt fields pose a potential threat to water pollution, are a source of pathogenic microbiological pollution, as well as a source of unpleasant odors and harmful gases (methane, hydrogen sulfide, mercaptan, carbon dioxide). It was concluded that due to excessive pressure, semipermeable membrane shell and optimization of oxygen content, these problems are solved. As a result, we get technical soil with a humidity of 40-50% from sludge, which can be used as backfilling, but more often for restoration of recreational zones and planting of various plants, since sludge is a good fertilizer due to the high content of phosphorus and nitrogen.
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