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