Embed Size (px)
Citation preview
Transformative Water Projects & Partnerships
Sustainable Silicon Valley Navigating the Bay Area Water May 31, 2018
Agenda
Transformative Beneficial Water Reuse
Transformative Partnerships Transformative Technologies
SSV May 31, 2018 2
Bay Area Sustainability Champions
Drops & Energy Being Spared in Bay Area
2017
SUEZ 3
Ironhouse SD MBR/UV WRF 4.3 MGD *
NRG Pittsburg PP UF BWDPRO *
DSRSD RWTF 1.2 MGD ADRWF (2016)
SVAWPC MF RO UV 8 MGD
American Canyon MBR UV WWTP 3.7 MGD *
Cache Creek MBR/EDR AWWTP *
Carnaros Inn WRF * Santa Rosa WRF 12.6 MGD
Hayward :MABR Lower Energy Intensified Nitrification *
SFPUC Westside ARWP 2 MGD
San Mateo CWP BNR/MBR AWWTP Upgrade 21 MGD *
SVCW SAF-MBR Demo WWTP *
ReNUWIt Stanford Codiga RRC SAF-MBR Demo * Calpine Metcalf Energy Center 2.5 MGD
Calpine Russell City Energy Center 1.5 MGD Reuse & ZLD *
Calpine Delta Energy Center
Calpine Los Medanos Energy Center
EBMUD Anaerobic Digesttion & SSOW 55 MW
EBMUD Chevron RARE WRF 3.5 MGD
EBMUD ALAMEDA WRF 2.3 MGD
LGVSD WRF 1.4 MGD (5.4 MGD Exp.) *
Daly City/SFPUC NSMCSD Tertiary RWP 2.8 MGD (3 MGD Exp.)
EBMUD Chevron NRWRF 4.0 MGD Delta Diablo WRF 12 MGD
South Bay Water Recycling - City of San Jose + SCVWD 20 MGD
SCRWA 8 MGD (2.5 MGD Exp.) Sunnyvale WPCP 11.9 MGD (1.3 MGD Reuse)
Geysers Water Reuse Reinjection 20 MGD
SJ/SC WPCP
Palo Alto RWQCP 3.0 MGD
+
Hollister MBR WRF 2.1 MGD (4 MGD Exp.) *
(Note: “*” denotes Suez technology applied)
SSV May 31, 2018 4
Executive Summary: “Through this Drought Contingency Plan (DCP), BARR agencies are working together to leverage existing assets and resources and strengthen the region’s water supply reliability in ways uniquely possible through the partnership.”
East Bay Municipal Utility District (Lead Agency) and Bay Area Regional Reliability Agencies:
Alameda County Water Agency Bay Area Water Supply and Conservation Agency
Contra Costa Water District Marin Municipal Water District
Santa Clara Valley Water District San Francisco Public Utilities Commission
Zone 7 Water Agency
December 19, 2017 Prepared by
Brown & Caldwell
SVV May 31, 2018 5 www.bayareareliability.com
SSV May 31, 2018 6
The energy content of
wastewater is
the energy required to
treat it.
2-4X
Tchobanoglous, G. Impacts of New Concepts and Technology on the Energy Sustainability of Wastewater Management, Climate Change Sustainable Development and Renewable Energy Sources Conference, Thessaloniki Greece, October 2009.
Energy neutrality
Biological Wastewater Treatment … the basics
O2
Organic matter (carbon)
Nutrients
CO2
H2O
New bacteria cells
Organic matter (carbon)
Nutrients
CO2
H2O
New bacteria cells
Aerobic Metabolism
Anaerobic Metabolism
CH4
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%) Sewage sludge
Gas/Fuel
Fertilizer
Water
Electricity
Aerobic Wastewater treatment
Anaerobic Digestion
Traditional Wastewater Treatment
Organics: BOD/COD Suspended Solids: TSS
Nutrients: TN, TP
https://www.epa.gov/sustainable-water-infrastructure/energy-efficiency-water-utilities
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%) Sewage sludge
Gas/Fuel
Fertilizer
Water
Electricity Food waste
Aerobic Wastewater treatment
Anaerobic Digestion
Neutral Energy Wastewater Treatment: Source Separated Organic Waste (SSOW) Anaerobic Co-digestion
Landfill Source Reduction Legislation SB 1383 AB 1826 AB 939 AB 901 AB 341
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%)
Sewage sludge
Gas/Fuel
Fertilizer
Water
Electricity
Aerobic Wastewater
treatment
Anaerobic Digestion
Neutral Energy Wastewater Treatment: Staged Anaerobic Fluidized-MBR (SAF-MBR)
SAF-MBR Anaerobic Digestion
* Stanford Codiga Resource Recovery Center * ReNUWIT * Silicon Valley Clean Water
https://cee.stanford.edu/research/labs-centers/codiga-resource-recovery-center-cr2c
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%) Sewage sludge
Gas/Fuel
Fertilizer
Water
Electricity Food waste Anaerobic Digestion
Optimizing Wastewater Resource Recovery
SAF-MBR Anaerobic Digestion
Rest of the World $ 1,405 million
(58%)
DPR: to Water Distribution
Aerobic Wastewater treatment
Municipal Indirect/Direct Potable Reuse (a.k.a. IPR/DPR)
Microfiltration/ Ultrafiltration
Reverse Osmosis Advanced Oxidation (AOP)
Membrane Bioreactor (MBR)
IPR: Environmental Buffer e.g. Lakes
IPR: Aquifer Recharge SGMA
Biological Active Filter Organics: BOD/COD
Suspended Solids: TSS Nutrients: TN, TP
Log Reduction Values (LRV): Bacteria
Pathogens Constituents of Emerging Concern
(CEC’s)
Note: SMGA= Sustainable Groundwater Management Act
Water Beneficial Reuse
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%)
Aerobic Wastewater treatment
IPR/DPR Brine Management
HCl NaOH NaOCl NaCl
CaSO4 MgOH
Microfiltration/ Ultrafiltration
Reverse Osmosis Advanced Oxidation
NF/RO Membranes/ Electrodialysis Reversal/
Bipolar ED/ Thermal Evaporation
Beneficial Reuse
Resources
SSV May 31, 2018 15
GUIDANCE FOR PRODUCING SAFE DRINKING-WATER
Membrane bioreactor
Validation protocol
https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/Surface_Water_Augmentation_Regulations
Global thought leadership Water reuse policy white paper – June 3, 2015
China government agencies
• China’s 12th 5-Year Plan (’11-’15) water targets
• Circular Economy Promotion Law (CEPL) • “Water-for-Coal Plan”
Policy options & 149 global examples
Appendix
Membrane Aerated Biofilm Reactor (MABR) technology
SSV May 31, 2018 18
Rest of the World $ 1,405 million
(58%)
UK $ 159 million
(7%) Sewage sludge
Gas/Fuel
Fertilizer
Water
Electricity
Aerobic Wastewater
treatment
Anaerobic Digestion
Neutral Energy Wastewater Treatment: MABR Emerging Aerobic Technology Reducing Biological Aeration Energy
Membrane Aerated Biofilm
Reactor (MABR)
Membrane Aerated Biofilm Reactors (MABR)
20
Benefits: Intensify nutrient removal
more treatment from existing tank volumes
Reduce aeration energy 30% lower than CAS, 50% lower than IFAS
Simple solution
no civil work
21
