oakland county clinton river wrrf improvements · 2018-07-09 · five year warranty for wastewater...
TRANSCRIPT
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OAKLAND COUNTYCLINTON RIVER WRRF
IMPROVEMENTS(FORMERLY PONTIAC WWTP)
CHAPTER 20 DRAINAGE DISTRICT
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OFF-ROADING PROCESS MAP
• Execution of a project through alternative methods
• Municipal & Manufacturer partnering for product development
• Fine Screening technology & future based finer screening needs
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Partnering with
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CLINTON RIVER WRRF
Influent Primary
Effluent
Mixed
Liquor
Secondary
Effluent
Final
Effluent
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2015
WASTEWATER SYSTEM
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2016
WASTEWATER SYSTEM SERVICE AREA
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• SERVICE
• CITY OF PONTIAC – 55,870
(POPULATION)
• SYLVAN LAKE – 1,835
• 30% OF THE COSDS - 125,038
(POPULATION)
• APPROXIMATELY 70% OF THE 8
TRIBUTARY COMMUNITIES
• PONTIAC WWTP ACTIVATED
SLUDGE PLANT
• TREATMENT CAPACITY 30.5 MGD
• PEAK FLOW RATE 41.3 MGD
• AVERAGE FLOW OF 20 MGD
• SOLIDS DISPOSAL
• AVERAGE DAY -15.6 DRY TONS
• PEAK OF 26.5 DRY TONS
Wastewater System
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Asset Status
• Asset Status - 2016 –
Over 45% of the asset
exceeded useful life
• Operating Budget
– $7,506,040
$ M
$2 M
$4 M
$6 M
$8 M
$10 M
$12 M
$14 M
$16 M
$18 M
$20 M
$22 M
$24 M
$26 M
2015 2016 2017 2018
CRWRRF Revenue & Bond Finance
O&M CIP/MM Construction Projects
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Liquid Process
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EAST BOULEVARD SITE LAYOUT
Headworks
Retention Basin
Aeration Basin
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AUBURN SITE LAYOUT
Primary
Clarifiers
Aeration
Basin
Secondary
Clarifiers
Tertiary
Filtration
Disinfection
Headworks
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AUBURN SITE SOLIDS HANDLING
Solids
Processing
Building
Primary + Secondary
Digester
Biosolids
Storage
Pad
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EAST BOULEVARD – SITE/PROJECT HISTORY
• Existing plant is designed for a
peak flow of 30.6 MGD
• Originally constructed in the
1920s with major upgrades in
the 1950s, 60s and 70s.
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EXISTING INFLUENT SCREENS FACILITY
• 6 MGD Avg
Flow
• 12-18 MGD
Peak Flow
• 72-inch Influent
Sewer
• (1) Existing 1-
inch opening
screen
• (1) Existing
manual bypass
screen
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UPSTREAM PROCESS
• Upstream coarse screen
• 3-inch openings
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EXISTING INFLUENT
SCREENS FACILITY
• (1) Existing Chain &
Rake Screen
• 1” Openings
• Past useful life
• Dual wheel barrel for
screenings
• Manual disposal of
screenings
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EXISTING INFLUENT SCREENS FACILITY
• Worn components
• Consistent failures and
regularly needed
corrective maintenance
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DESIGN A SUSTAINABLE SOLUTION
TO SCREENINGS REMOVAL AND DISPOSAL
(1) Mechanical Bar Screen - Link Driven,
Front Cleaning, Front Return
• FlexRake® Model – FPFS-M,
SSTL304
• 1 ft head differential
• Optional Bar Openings:
• 1/8 inch clear opening (Beta)
• 1/4” inch clear opening
• 20 degrees from vertical
• Channel Dimensions:
• 5.50 ft wide x 7.30 ft channel
height
(1)Washer Compactor - Dual Auger
System, 304SS
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Ideal for:
• Vertical and Near-Vertical
Wastewater Applications
• Retrofits with Channel
Constraints
• Sites where Future
Screening Options May be
Required
Full Penetration Fine Screen - Millennial™ Platform
FLEXRAKE® FPFS-MFull Penetration Fine Screen - Millennial™ Platform
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• Reduces Landfill Costs
• Consistent Compaction
Regardless of Debris Size or
Volume
• Accepts Non-Standard
Wastewater Debris (Rocks,
Clothing, Concrete,
Metal) up to 4 inches
• Positive Displacement—What
Goes In, Comes Out
Washer CompactorPositive Displacement Dual-Auger System – Millennial™ Platform
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East
Blv
d Scr
een
Design a Sustainable Solution to Screenings Removal and
Disposal
Conceptual Alpha Beta Production
Product Development Cycle
• Purchase of Equipment
• Special Terms
• Testing Period
• Product Upgrades
following test period
• Partnership with Owner
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Five Year Warranty for
Wastewater Applications
Oakland County Pilot Project Offering
Phase I – Design & Installation of Equipment
Phase II – 6 Month Research & Development Testing Period
• Owner Option: Retain equipment as furnished
and installed or request the screen be modified
to ¼-inch openings at no additional cost.
Special Payment Terms – payment upon completion of each Phase
Warranty commencement after 6-month R&D period
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Owner Benefits/Assessment
Benefits of the pilot for Oakland County:
• Greater screenings
removal if 1/8” worked
• 39% Overall Est.
Savings vs. traditional
capital project
• Non-traditional
project management
• New product trial
and error
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Hydraulics • Comparable Flowable/Open Area
• 10 MGD = 1.84 in headloss through both ¼” and 1/8” opening
FlexRakes®
• Time to Blind = Differential Level Control & Operations
• All flow through (1) channel/screen
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Debris Capture
• “Piloting” Washer Compactor capacity rules for application
• Sizing downstream equipment for increased screenings
A
• Bar screens 5’ to 10’ wide
• Flows up to 25 MGD
B
• Bar screens 5’ to 10’ wide
• Flows up to 110 MGD
C
• Bar screens 5’ to 10’ wide
• Flows Up to 190 MGD
*Based on ¼” Bar Slots
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Debris Capture Results
• Field testing: 37% more than screenings than a ¼” opening, 17% more than
MOP8 estimate
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EAST BOULEVARD IMPROVEMENTS
27
+
=
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Project Partnerships
Oakland Co.
Duperon/ Dubois-Cooper
Weiss Construction
Design-Build
Concept
• Oakland County issued
two separate contracts:
• Duperon
• Weiss
• On-site preliminary
submittal review
included all parties and
a walk down on the site
• Collaborative approach
to identify each party’s
responsibilities and
scope of work
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Project Schedule & Path
6/10/15
Executed
Agreement
7/2/15
1st Design
Submittal
7/8/15
On-Site Design
Review Meeting
9/28/15
Final Approval
&
Release to
Manufacturing
12/15/15
Equipment
Installation
Official
Startup
Completion
Of Testing
2/24/16
8/24/16
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Manufacturing & Factory Testing
September – December
(12 weeks)
• 8 weeks fabrication &
assembly
• 4 weeks factory testing
• Led by Product Owner to
review and sign off each
step of design, fabrication,
assembly, testing & QC
• Owner Witness Testing
option
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Installation & Startup
December - February
(8 weeks)
• Shipment 12/14/15
• Installed upon arrival
with Weiss
• Dry testing and manual
operation for interim
testing
• Official startup and
training kicked off 6-
month testing period
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EAST BOULEVARD IMPROVEMENTS
32
BEFORE AFTER
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6-Month Testing Period
February – August
Weekly Reporting:
• Average Daily Flow
• Operation Mode
• Debris Conditions
• Proper Tracking
• Noises
• Controls Faults
FMEA Testing & Logs Generated
Site Inspections
Product Improvements
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Post Testing Period - Breakdown
Have a back
up plan in
place at the
beginning of
the project.
R&D requires
extended time
to understand
failure modes
Consider
Inspection
Duration
Create a
Communication
Plan
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Lessons Learned & Results
• Clear expectation of each party’s role in the project, specifically for
transition into turnover of the operations to the County:
• Maintenance
• Operations
• Warranty
• Communication Plan
• SCADA is helpful
• Prepare staff for change in routine
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Thank You