Sludge granulation and waste code change

Sludge is one of the by-products of wastewater treatment process. It can be further processed and turned into a product that is safe to be introduced into the environment as soil enhancer. The process itself is conducted using full hygienisation and sludge granulation lines. The line consists of a reactor, lime silos, sludge and granule conveyors and a lime dispenser. Thickened and dehydrated sludge is mixed in the reactor with a specific dose of quicklime. During lime hydration process, the temperature increases, creating sterile and stable granules of specific size, thus making their storage and transport a lot easier and safer. The main use of this product is agricultural crops fertilization. The product can be sold on condition of the seller obtaining marketing authorization.

Marketing authorization procedure

Before obtaining the marketing authorization for soil enhancers, the following analyses need to be conducted and documents obtained (brackets provide information about the estimated waiting time for each document):

  • Biological tests (2-6 weeks)
  • Biological tests report
  • Physicochemical tests (2-6 weeks)
  • Physicochemical tests report
  • Review of influence on human health (2-4 weeks)
  • Review of influence on animal health (2 weeks)
  • Review of influence on the environment (2 weeks)
  • Agricultural tests (about 1 year)
  • Agricultural suitability review
  • Instructions for use and storage
  • Product characteristics (2 weeks)
  • Application to the Ministry of Agriculture and Rural Development (up to 2 months)

In addition, a subject producing the discussed product must expand their business scope to fertilizers and/or plant conditioners trade.

Legal regulations associated with wastewater sludge usage

  • Waste Act (Journal of Laws 2020, pos. 150)
  • Regulation of the Minister of Environment from the 6th of February 2015 for the municipal wastewater sludge (Journal of Laws 2015, pos. 257)
  • Regulation of the Minister of Environment from the 20th of January 2015 for R10 recycling (Journal of Laws 2015, pos. 132).

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