Overview

The problem of waste disposal from fish processing and mushroom production enterprises has arisen in the last two decades in connection with the activities of such enterprises as SP Santa Bremor LLC and SOOO Bonshe. SOOO Bonshe, Brest District, produces up to 15,000 tons of waste substrate and up to 1,800 tons of mushroom roots per year. Storing waste substrate in close proximity to mushroom production can cause great harm to future champignon harvests. SP Santa Bremor LLC produces about 36.5 thousand m3 of industrial wastewater per year. As a result of their purification on modern equipment using flocculants and coagulants, the enterprise accumulates 2.0 thousand tons of industrial wastewater sludge per year, requiring further disposal. If this waste is considered not only from the standpoint of environmental pollution, but also as underutilized raw materials, it seems possible to return it to the resource cycle. Due to the fact that 1 ton of wastewater sludge from a fish processing plant at natural moisture content contains: 14.1 kg/t of nitrogen, 28.6 kg/t of phosphorus, 23.4 kg/t of potassium, its use as a component in the production of alternative organic fertilizers is obvious.

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