Blackburn Wastewater Treatment Plant Upgrade Study

Section 4.0 - Blackbum Treatment Options
4.2. An UI reduction program is to be initiated and completed to reduce the
volume of wastewater being transfmed during wet weather and snowmelt
conditions. The existing Mackus Road pumpstation would be upgraded. It is
believed that the Lansdowne Road WWTP has sufficient capacity to handle the
projected future hydraulic and BOD5tTSS loadings from the Blackbum sewage
collection area.
Key activities or capital works associated with this option are as follows:
Implement and complete VI reduction program.
Decommission lagoons and rehabilitate site for other use.
Upgrade Mackus Road pu&pstation to handle projected increased flows.
Construct trunk gravity sewer to transfer all flows from Blackburn
sewerage area to Lansdowne Road WWTP.
Upgrade downtown sewage collection pipework to handle increased flows
from Blackburn sewerage area.
Key technical issues associated with this option are as follows:
Extent to which the If1 reduction program is able to reduce peak wet
weather flows must be evaluated.
City need operate only one wastewater treatment and disposal facility.
Major capital works needed to transfer flows to Lansdowne Road WWTP.
Condition and capacity of the existing Mackus Road pumpstation must be
evaluated.
Details for pipeline routes for transferring Blackburn sewage flows to
Lansdowne Road WWTP must be evaluated.
Ammonia toxicity issue addressed at Lansdowne Road WWTP.
4.2.2 Design Information
Population
ADWF, m3/d
PWWF, m3/d