HomeMy WebLinkAbout05.a. Receive update on the Tertiary Membrane Pilot Project Page 1 of 7
Item 5.a.
CENTRAL SAN
March 16, 2022
TO: ENGINEERING AND OPERATIONS COMMITTEE
FROM: AMANDA CAUBLE, ASSOCIATE ENGINEER
REVIEWED BY: DAN FROST, SENIOR ENGINEER
DANEA GEMMELL, PLANNING AND DEVELOPMENT SERVICES DIVISION
MANAGER
JEAN-MARC PETIT, DIRECTOR OF ENGINEERINGAND TECHNICAL
SERVICES
ROGER S. BAILEY, GENERAL MANAGER
SUBJECT: RECEIVE UPDATE ON THE TERTIARY MEMBRANE PILOT PROJECT
Attached is a presentation on the progress of the Tertiary Membrane Pilot in advance of the Board of
Directors special meeting tour on April 7, 2022.
Strategic Plan re-In
GOAL TWO: Environmental Stewardship
Strategy 1—Achieve 100% compliance in all regulations, Strategy 3— Support regional development of local water
supply
GOAL SIX: Innovation and Optimization
Strategy 2—Improve and modernize operations through technology and efficiency measures
ATTACHMENTS:
1. Presentation
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 12 of 20
Page 2 of 7
4
UPDATE ON TERTIARY MEMBRANE PILOT
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Amanda Cauble
Associate Engineer
- -� Jean-Marc Petit
Director of Engineering and Technical Services
Engineering and Operations Committee Meeting
- March 16, 2022
PROJECT OBJECTIVES
1 . Proof of concept using tertiary membrane filtration for producing
Title 22 recycled water with Central San's secondary effluent
2. Evaluate multiple established membrane manufacturers and
refine operating parameters
3. Pilot a dual-stage reverse osmosis skid to better inform the
viability of membranes as pre-treatment and for potential future
advanced recycled water opportunities
CFNTPALSAN
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 13 of 20 1
Page 3 of 7
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ISOMETRIC VIEW OF MEMBRANE SKID
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PHOTO OF MEMBRANE SKID
ISOMETRIC VIEW
CENTPALSAN
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 14 of 20 2
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CENTRAL SAN
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Page 5 of 7
THREE TYPES OF PRESSURE
TERTIARY MEMBRANES
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PHOTO OF MEMBRANE SKID '
7
CFNTPALSAN
FOUR TYPES OF MEMBRANES ARE TESTED
MFR.1:TORAY IS UF: 0.01
micron
MFR.2: NANOSTONE IS OF
0.03 micron
MFR.3: PALL/ASAHI IS MF 0.1 �a •� s��
micron •0 • • • •
MFR.4: HYDRANAUTICS IS RO 4f •�. .••
about 0.0001 to 0.001 micron ? •�•
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PHOTO OF MEMBRANES
MF=Micro Filtration
UF=Ultra Filtration
RO=Reverse Osmosis '
CFNTPAL SAN
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 16 of 20 4
Page 6 of 7
CHEMICAL CLEANING SYSTEMS
' 9
PILOT SCHEDULE
• August — November 2021 : Delivery of pilot, install, and
preparation.
• December 2021 — June 2022: Operate and receive pilot data for
an estimated 4-6 months.
• June —August 2022: Draft and finalize findings and report.
10
CFNTPALSAN
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 17 of 20 5
Page 7 of 7
QUESTIONS?
4E
CFNTPALSAN
March 16, 2022 EOPS Regular Committee Meeting Agenda Packet- Page 18 of 20 6