Methodology : ID_AM024 Ver1.0

Methodology No. ID_AM024
Proposed Methodology No. ID_PM034
Sectoral scope 3. Energy demand
Title Replacement of diffuser with aerator in aeration pond
Summaries GHG emission reduction measures : For aerobic wastewater treatment, aeration device(s) is(are) used for supplying air into wastewater. Replacement of the diffuser with the aerator enables to reduce air discharge pressure at blower(s), to run blower(s) not continuously but intermittently and to reduce discharge amounts of air from blower(s). By these effects, electricity consumption at blower(s) can be reduced.
Calculation of project emissions : Project emissions are calculated with electricity consumption of project blower(s) and CO2 emission factor for consumed electricity.
Calculation of reference emissions : Reference emissions are calculated with electricity consumption of blower(s) connected with project aeration devices of aerator (hereinafter referred to as “project blower(s)”), ratio of operating time of blower(s) connected with reference aeration devices of diffuser (hereinafter referred to as “reference blower(s)”) and project blower(s), ratio of shaft power of reference/project blower(s), and CO2 emission factor for consumed electricity.
Monitoring parameters : Electricity consumption at project blower(s); Operating time of project blower(s); Stop time of project blower(s) during intermittent operation); Discharge pressure of project blower(s); Rotations per minute of project blower(s).
Version Number Ver1.0
Status Valid
Methodology Proponent Environmental Management and Technology Center (EMATEC)
Approved Methodology
Proposed Methodology
Public comments
  • 12 May 20   -  26 May 20
Date of approval 17 Sep 20