The partial recycling plants include a variety of additional treatments, required for the removal of pollutants in suspended, colloidal or dissolved form, still present in the effluent downstream of the biological treatment (or secondary treatments).

  • Efficiency of removal of organic substance and suspended solids, higher than those obtained with the biological plant, in order to meet more stringent limits to the discharge or to the reuse of the final effluent;
  • Removal of residual suspended solids to improve the efficiency of disinfection;
  • Removal of specific pollutants of organic or inorganic nature (heavy metals, silica) in order to meet more stringent limits to the discharge or for the recycling of the effluent in industrial applications (process water).

The systems of advanced treatmnet are:

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  • Disc filters (DF)
  • Quartz filters (QF)
  • Ultrafiltration (UF)
  • MBR
  • Decoloring resing filters (RF)
  • Softners (SF)
  • Degasers (DT)
  • Reverse Osmosis (RO)
  • Nanofiltration (NF)
  • Saturators (SAT)

A studied combination of previous treatments allows producing water with a quality that it can be used in various industrial processes, respecting the needs of the customer.

 

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Following there are some combinations of advanced treatments to install downstream of a biological plant:

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