The objective of “regeneration” tertiary treatment is to improve WTP’s effluent quality for use afterwards. Within these treatments, filtration is usually followed by disinfection.

Most commonly used filters are:

  • Bed filters (through pressure and gravity)
  • disc filters
  • continuous cleaning filters
  • screen filters. Effluent filtering is disinfected through ultraviolet rays
  • chlorination and ozonization.

There are numerous combinations of these technologies and, in each case, the most appropriate one is selected to be reused according to the effluent’s quality.

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