Implementation of a recycling water supply system at a plant for the production of mineral fertilizers

Summary

The introduction of recycling water supply is an important factor in reducing the negative impact of industrial enterprises on the environment. In 2007, experts from ECOS Group built and commissioned wastewater treatment facilities for a mineral fertilizer plant. Commissioning was preceded by full-fledged pilot tests in a pilot plant with a capacity of 1 m³/h. Preliminary pilot tests are a smart move in the implementation of projects for the construction of wastewater treatment facilities. The proposed process solutions were tested in the pilot plant: dosages of chemicals, subsequent clarification, filtration and sorption in gravity filters. As a result, the process parameters and the main indicators of the quality of raw wastewater were determined. The filtration efficiency in a ERSH filter was up to 80%. The necessity of raw wastewater balancing and the use of a biological treatment stage is shown. Upon completion of the work, the customer received reliable, easy-to-work treatment facilities; effluent discharge into the municipal sewer was ceased and the water consumption for the production needs was reduced.

Key words

coagulation , ion exchange , recirculating water supply , pilot tests , production of mineral fertilizer