HomeMy WebLinkAbout09.a. (Handout)9.a.
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Deferral of URS Contract
CCCSD Board Meeting
June 2, 2011
Central Contra Costa Sanitary District
What has changed last six
months?
-Adequate Landfill Gas is available to stay
below green house gas cap of 25,000
metric tons CO2 equivalents for - 10
years (March 2011).
-No driving force from AB32 GHG law.
-Existing Multiple Hearth Furnaces able to
meet new CAA Section 129 regulations
without significant investment (March
2011).
*No driving force from CAA Section 129„(1
1
Significant Investment in Incinerator
Improvements
Still Needed Over Next Ten Years
• Wet/Dry Scrubbers
$4
M
2012 -13
• Furnace Burners
$1.7
M
2013 -14
• Solid Building Seismic
$5.1
M
2013 -14
• Centrifuge /Cake Pumps
$3.2
M
2014 -15
Total Planned Expenditures $14 Million
O:
Plant of the Future Questions?
-Do Nitrogen and Phosphorus removal technologies
depend on the presence of Anaerobic Digesters?
-Do Innovative low energy consuming process for
ammonia /nitrogen removal depend on the presence of
Anaerobic Digesters?
-Are Anaerobic Digesters supplemented with food waste
the only way to achieve energy neutrality at a Wastewater
Plant?
-Do these potential benefits justify the cost of Anaerobic
Digestion at $70 to $100 M ??
-What if we plant to spend $70 M to install Fluidized Bed
Incinerators .... are Anaerobic Digesters a better option?
If benefits of Anaerobic
Digestion continue to be
significant after further
exploration ........ consider
expanding URS scope and
green house gas model to more
rigorously analyze alternatives.
:,;,(S!I
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