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MBR Design & Construction
Presented by: Deb Hart, P.E.
Details… Details… Details…
Design ConstructionDesign Construction
Details… Details… Details…
• CONTRACTUAL ARRANGEMENTS –MANAGING CHANGE
• DESIGN ISSUES – WORKING TOGETHER•
• CONSTRUCTION – MEETING DESIGN REQUIREMENTS
CONTRACTUAL ARRANGEMENTS –MANAGING CHANGE
• MBR is a proven technology and widely expanding• New generations of manufacturer provided
equipment advance quicklyTake advantage of value-added equipment without • Take advantage of value-added equipment without adding significant additional costs or time
CONTRACTUAL ARRANGEMENTS – MANAGING CHANGE
Project Timeline – Past Approach
Preliminary DesignDesign-Construction
DocumentsConstruction
Additional Cost & Time
MBR Equipment New MBR Equipment
Redesign
CONTRACTUAL ARRANGEMENTS – MANAGING CHANGE
Project Timeline – Current Approach
Preliminary DesignDesign-Construction
DocumentsConstructionConceptual Design
Minimized Additional
Cost & Time
Redesign
MBR Procurement Contract with Owner
Work with Selected MBR MFRTeam Reviews/AcceptsNew MBR Equipment
CONTRACTUAL ARRANGEMENTS –MANAGING CHANGE
Advantages of Early Equipment Procurement:• Aligns MBR equipment and plant footprint
requirementsrequirements• Establishes hydraulic grade line and
requirements for treatment train pumping• Establishes baseline for evaluating potential
MBR changes
DESIGN ISSUES – WORKING TOGETHER
• Refine P&IDs, written control strategies and software programming protocols
• Refine and improve hydraulic profile and pumping systems requirementspumping systems requirements
• Confirm ancillary equipment design criteria e.g. WAS pumps, permeate pumps, process blowers
• Review seismic anchorage requirements
DESIGN ISSUES – WORKING TOGETHER
• Make components, valves and fittings accessible within a dry area
DESIGN ISSUES – WORKING TOGETHER
Corrosion Issues• Piping and valve materials• Dissimilar Metals• Dissimilar Metals• Valve locations
DESIGN ISSUES – WORKING TOGETHER
MBR Cover vs. No Cover• Determine if a cover is required early in design
–Cold climate?–Cold climate?
–Debris / leaves?
– Structural implications
–Maintenance implications
DESIGN ISSUES – WORKING TOGETHER
Equipment Delivery• Specify staged deliveries in 3 steps:– Delivery of membrane components within
membrane tankagemembrane tankage– Delivery of balance of membrane equipment– Delivery of membrane cassettes
CONSTRUCTION – MEETING DESIGN REQUIREMENTS
Testing and Start-up Requirements: • Treatment plant typically does not start at full
design capacitydesign capacity• K/J developed STRESS TEST procedure that
simulates full design capacity
CONSTRUCTION – MEETING DESIGN REQUIREMENTS
• During design, confirm testing requirements with Manufacturer
• During construction, review Testing and Start-• During construction, review Testing and Start-up Procedures with Contractor and Manufacturer before planned test dates
• Run hydraulic test with clean water
CONSTRUCTION – MEETING DESIGN REQUIREMENTS
MBR Warranty Period/Special Guarantee• MBR equipment - 1 year warranty• Membrane Cassettes Special Guarantee• Membrane Cassettes Special Guarantee
CONSTRUCTION – MEETING DESIGN REQUIREMENTS
Optimize Operations with Manufacturer Service Contract
• Most deficiencies occur within first year of operationoperation
• Set up one year service contract with option to extend
• Allows Owner’s O&M personnel to learn the system
SUMMARY
• Manage time and cost changes during construction by procuring MBR equipment early
• Work together during design to address MBR and overall plant design and compatibility
• Meet design requirements during construction through start-up and testing procedures
SUMMARY
• Pay attention to the details. You don’t want to end up with the project from …
