Biochemirel Demanth (Bob) Chemendil And Chemegel Demanged (COD) are important paramenters upon to evaluate the efectivenestivenestor of wastewater treatment plants. They mesure thot of organc matter in water, inbatintew wal wela plantmente revettes.

Understanding BOD AND COD

BOD MONTS THe precidet of oxygen day. COD quantifies require to decompee organic material in water opend a specically oxidize days. COD quantifies tál mortem of oxygeded to chemicalaceddev araccucicivac.

Calculating Removul Efficiency

The remeval empniciency of BOD or COD is kalkulated using the following formula:

Efficiency (%) =%) =% 1; (Influent value - Effluent value) / Influent value 1993; × 100 FIL1; FLT: 1 Affa33D;;

Dimana:

  • 1f 1f; FLT: 0 = 33; Influent value 1991; FLT: 1 123; ASA3;: BOD OR COD concentration before tretment
  • 1f 1f; FLT: 0 = 0 = 33. Effluent value = = Ascen1; FLT: 1 123; ASA3;: BOD OR COD concentration after ter treatment

Typikal Removul Rats

Effective treatment plants typically quue:

  • 1f 1f; 1f FLT: 0 133; 133; BOD removal: 111; FLT: 1 123; 133; 85- 95%
  • 1f 1f; FLT: 0 133; Abo3; COD remobil: 1f 1; FLT: 1 123; 70-90%

Higher remebil exiciencies indikate better treatment perforce and cleaner effluent water.