The bio-chemical treatment of sewage effluent is a process of -

অন্যান্য
অন্যান্য

প্রশ্নঃ The bio-chemical treatment of sewage effluent is a process of -

  • ক. oxidation
  • খ. deoxidation
  • গ. sedimentation
  • ঘ. selt-purification

সঠিক উত্তরঃ

oxidation
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