Definition of secondary treatment in English:

secondary treatment

Line breaks: sec¦ond|ary treat|ment


[mass noun]
The further treatment of sewage effluent by biological methods following sedimentation: sewage dumped in certain ‘sensitive’ areas of the sea would be given secondary treatment [as modifier]: a secondary-treatment stage comprising aerobic biological oxidation and final settlement
More example sentences
  • Most treatment plants also have secondary treatment, whereby sewage is stirred and oxygen is blown in to help beneficial bacteria breed and eat up the ‘solids.’
  • Ecosystem damage and fish toxicity occurred downstream from mills that did not use chlorine, even in advanced mills with secondary treatment processes.
  • This waiver allows for less than full secondary treatment of the sewage being discharged into the ocean off Huntington Beach.

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Word of the day deictic
Pronunciation: ˈdīktik
denoting a word whose meaning depends on context...