In Partnership With
Nutrient Recovery Through Sustainable Algal Treatment Methods Fond Du Lac, WI Prepared For: CSWEA, May 2017
Presented by: Jordan Lind (CWR) and Autumn Fisher (FDL)
Introduction and Background • Population of 45,000
• Sewer Service Population of 65,000
• Fond du Lac is located on the shores of Lake Winnebago and discharges wastewater effluent to the Lake
2
Introduction and Background • The City owns and operates an advanced BNR facility • 9.84 MGD Design Flow • 128,000 Design Population • The City is facing increased water quality
standards: • Current TP Limit – 1.00 mg/L • Proposed TP Limit – 0.04 mg/L • Proposed P Mass Limit – 3.3 lbs/Day
3
Introduction and Background
4
FDL Efforts to Date 11/1/2014 10/1/2015
SorbX
Alum
10/5/2015 7/4/2016 7/5/2016 4/1/2017
Ferric Ovivo CoMag
9/16/2013 10/15/2013
3/18/2015 4/23/2015
Aqua Aerobics
9/29/2015 10/27/2015
Clearas 8/9/2016 1/1/2013 10/31/2014
Alum
11/11/2016
6/1/2015 6/19/2015
Actiflo
Bio P
Permit Effective
Operational Evaluation Report Due
1/1/2013
Jan
12/31/2013
Jul
2014
Jul
12/1/2014 - 4/1/2017
Status Report
Preliminary Alternatives Compliance Plan
12/31/2014
12/31/2015
2015
Jul
2016
Jul
Final Compliance Alternatives Plan 6/1/2017
2017
2017
Today 5/1/2013
Lake/River Sampling
5/1/2015
Watershed Sampling
5
Phosphorus Removal
Cerium Chloride
BPR Modifications
Full Scale Optimization
Alum
Ferric
6
COMAG® Ballasted Settling System
Pilot Experiences
Ovivo TriSep Membranes
Clearas ABNR
Tertiary Technology
AquaAerobic Systems AquaDisk ® CMF and UF
ACTIFLO® Ballasted Settling System
7
ABNR™ Technology
8
ABNR™ Technology - Steps MIX Contaminated wastewater and CO2 are mixed in a turbulent environment with a proprietary blend of algae and other biological organisms to initiate the recovery of harmful nutrients. This blended flow is referred to as the Mixture Flow.
RECOVER The bio-diverse Mixture Flow travels through the vertical pond system which optimizes biological activity and photosynthesis to stimulate the recovery of phosphorus, nitrogen, and other contaminants. The process consumes nutrients and CO2 and results in clean water and pure oxygen. The Recovery phase operates in continuous mode, is selfcleaning, and produces zero waste.
SEPARATE Advanced membrane filtration separates the bio-diverse Mixture Flow into two streams a clean water stream and a recycle stream. The recycle stream supplies healthy algae and biological organisms to reseed and treat new wastewater entering the Blend Phase. Surplus algae and biological organisms are removed from the treatment process to keep the ratio of algae to nutrients available balanced and optimal for contaminant recovery.
ABNR Technology has Three Major Components/Steps 9
Tertiary Treatment - Biological Nutrient Recovery Conventional Activated Sludge Incoming Wastewater
Aeration
Secondary Clarifier
Advanced Biological Nutrient Recovery (ABNR™) Final Effluent
Secondary Clarifier
Separation
Final Effluent
Return Activated Algae (RAA)
Return Activated Sludge (RAS)
Waste Activated Algae (WAA)
Waste Activated Sludge (WAS) 10 – 5 mg/L
Mix / Recover
Total Phosphorus
2-4 mg/L
2-4 mg/L
0.03 mg/L
Total Phosphorus
▪
Solid / liquid settling follows the Aeration stage
▪
Solid / liquid separation follows the Mix / Recover stage
▪
Return of biomass (bacteria & microbes) to the Aeration stage
▪
Return of biomass (algae & microbes) to the Mix / Recover stage
▪
Wasting of excess biomass (bacteria & microbes) maintains food to mass ratio
▪
Wasting of excess biomass (algae & microbes) maintains food to mass ratio
Bolt-on nutrient recovery technology which leverages suspended algae and other microbes in a controlled bioreactor. Results are driven by managing the relationship between the food (phosphorus and nitrogen) entering the biological system and the mass (algae and other microbes) within the process. ▪ ▪ ▪ ▪
Food / Mass Process Control Modular, Scalable & Flexible Design Economic & Biologic Advantage Recycles Greenhouse Gasses (CO2 & NH3)
▪ ▪ ▪ ▪
Capable of non-detect levels of phosphorus, NH4+, etc Chemical-Free Treatment No Additional Sludge Production Multiple Constituent Recovery (TP, TN, NH3, NO3, BOD5)
Similarities/Familiarities to Activated Sludge Process
www.clearaswater.com
Clearas System
“The Problem is the Solution” 11
Multi-Constituent Reduction
NH3 Non-Detect for Feed and Permeate
Clearas Effluent is of the Highest Quality Possible 12
Dissolved Oxygen Increase Dissolved Oxygen Feed
Permeate
12.00
Dissolved Oxygen, mg/L
10.00 8.00 6.00 4.00 2.00 0.00 Feed Permeate
Blackstone 4.86 9.80
Perrysburg 5.52 7.76
30-40% Increase in Dissolved Oxygen 13
Biomass Coproduct Approximately 700 lbs (dry mass) per day is produced from domestic sewage with at least 1 mg/L TP and adequate TN
The algal coproduct is “harvested” and is not a waste product The coproduct has a wide range of potential uses and markets that are interested in purchasing the material
Dewatering, drying, and processing steps will vary depending on who is buying the material and what they intend to do with it The coproduct value has the ability to offset project costs, cover operational costs, and/or retire project debt service depending on how much coproduct is generated and its negotiated value
14
Biomass Coproduct Characteristics The algal coproduct can be considered as a direct replacement for petro-chem markets as well as biomass feedstock for a variety of products. Algae is largely made up of protein, lipids (fat) and carbohydrates The biomass is a poly-culture but made up of generally 2 or 3 typical families of algae
15
Potential Biomass Markets Those interested in purchasing the algal coproduct include a wide range of industries and manufacturers Opportunities for sales include soil amendment, specialty chemicals, biofuels, plastics, specialty fibers, protein supplements, animal and aquaculture food, pharmaceuticals, solvents, urethanes, food colorants, etc. Gross values range from $0.50 to $1.50+ per pound (dry weight)
16
FDL Demonstration
17
FDL Demonstration Results Extensive Sampling Nutrients
Drinking Water Analysis Evaluate potential for water reuse
Phosphorus Speciation Metals Treated water Algae
Bacteria
18
FDL Demonstration Results
19
FDL Demonstration Results
Pilot Influent SNRP Pilot Effluent SNRP
Clearas • Influent 0.56 mg/L TP • Effluent 0.031 mg/L TP
20
FDL Proposed Design
21
FDL Next Steps Permit Expiration
12/31/2017 TMDL Complete Summer 2018 Decision 2018-2019
• Permit Application • MDV Application
• Obtain Waste Load Allocation
• Tertiary Treatment • Water Quality Trading • Adaptive Management • Combination
22
Questions
23
Presented by: Jordan Lind (CWR) and Autumn Fisher (FDL)
Introduction and Background • Population of 45,000
• Sewer Service Population of 65,000
• Fond du Lac is located on the shores of Lake Winnebago and discharges wastewater effluent to the Lake
2
Introduction and Background • The City owns and operates an advanced BNR facility • 9.84 MGD Design Flow • 128,000 Design Population • The City is facing increased water quality
standards: • Current TP Limit – 1.00 mg/L • Proposed TP Limit – 0.04 mg/L • Proposed P Mass Limit – 3.3 lbs/Day
3
Introduction and Background
4
FDL Efforts to Date 11/1/2014 10/1/2015
SorbX
Alum
10/5/2015 7/4/2016 7/5/2016 4/1/2017
Ferric Ovivo CoMag
9/16/2013 10/15/2013
3/18/2015 4/23/2015
Aqua Aerobics
9/29/2015 10/27/2015
Clearas 8/9/2016 1/1/2013 10/31/2014
Alum
11/11/2016
6/1/2015 6/19/2015
Actiflo
Bio P
Permit Effective
Operational Evaluation Report Due
1/1/2013
Jan
12/31/2013
Jul
2014
Jul
12/1/2014 - 4/1/2017
Status Report
Preliminary Alternatives Compliance Plan
12/31/2014
12/31/2015
2015
Jul
2016
Jul
Final Compliance Alternatives Plan 6/1/2017
2017
2017
Today 5/1/2013
Lake/River Sampling
5/1/2015
Watershed Sampling
5
Phosphorus Removal
Cerium Chloride
BPR Modifications
Full Scale Optimization
Alum
Ferric
6
COMAG® Ballasted Settling System
Pilot Experiences
Ovivo TriSep Membranes
Clearas ABNR
Tertiary Technology
AquaAerobic Systems AquaDisk ® CMF and UF
ACTIFLO® Ballasted Settling System
7
ABNR™ Technology
8
ABNR™ Technology - Steps MIX Contaminated wastewater and CO2 are mixed in a turbulent environment with a proprietary blend of algae and other biological organisms to initiate the recovery of harmful nutrients. This blended flow is referred to as the Mixture Flow.
RECOVER The bio-diverse Mixture Flow travels through the vertical pond system which optimizes biological activity and photosynthesis to stimulate the recovery of phosphorus, nitrogen, and other contaminants. The process consumes nutrients and CO2 and results in clean water and pure oxygen. The Recovery phase operates in continuous mode, is selfcleaning, and produces zero waste.
SEPARATE Advanced membrane filtration separates the bio-diverse Mixture Flow into two streams a clean water stream and a recycle stream. The recycle stream supplies healthy algae and biological organisms to reseed and treat new wastewater entering the Blend Phase. Surplus algae and biological organisms are removed from the treatment process to keep the ratio of algae to nutrients available balanced and optimal for contaminant recovery.
ABNR Technology has Three Major Components/Steps 9
Tertiary Treatment - Biological Nutrient Recovery Conventional Activated Sludge Incoming Wastewater
Aeration
Secondary Clarifier
Advanced Biological Nutrient Recovery (ABNR™) Final Effluent
Secondary Clarifier
Separation
Final Effluent
Return Activated Algae (RAA)
Return Activated Sludge (RAS)
Waste Activated Algae (WAA)
Waste Activated Sludge (WAS) 10 – 5 mg/L
Mix / Recover
Total Phosphorus
2-4 mg/L
2-4 mg/L
0.03 mg/L
Total Phosphorus
▪
Solid / liquid settling follows the Aeration stage
▪
Solid / liquid separation follows the Mix / Recover stage
▪
Return of biomass (bacteria & microbes) to the Aeration stage
▪
Return of biomass (algae & microbes) to the Mix / Recover stage
▪
Wasting of excess biomass (bacteria & microbes) maintains food to mass ratio
▪
Wasting of excess biomass (algae & microbes) maintains food to mass ratio
Bolt-on nutrient recovery technology which leverages suspended algae and other microbes in a controlled bioreactor. Results are driven by managing the relationship between the food (phosphorus and nitrogen) entering the biological system and the mass (algae and other microbes) within the process. ▪ ▪ ▪ ▪
Food / Mass Process Control Modular, Scalable & Flexible Design Economic & Biologic Advantage Recycles Greenhouse Gasses (CO2 & NH3)
▪ ▪ ▪ ▪
Capable of non-detect levels of phosphorus, NH4+, etc Chemical-Free Treatment No Additional Sludge Production Multiple Constituent Recovery (TP, TN, NH3, NO3, BOD5)
Similarities/Familiarities to Activated Sludge Process
www.clearaswater.com
Clearas System
“The Problem is the Solution” 11
Multi-Constituent Reduction
NH3 Non-Detect for Feed and Permeate
Clearas Effluent is of the Highest Quality Possible 12
Dissolved Oxygen Increase Dissolved Oxygen Feed
Permeate
12.00
Dissolved Oxygen, mg/L
10.00 8.00 6.00 4.00 2.00 0.00 Feed Permeate
Blackstone 4.86 9.80
Perrysburg 5.52 7.76
30-40% Increase in Dissolved Oxygen 13
Biomass Coproduct Approximately 700 lbs (dry mass) per day is produced from domestic sewage with at least 1 mg/L TP and adequate TN
The algal coproduct is “harvested” and is not a waste product The coproduct has a wide range of potential uses and markets that are interested in purchasing the material
Dewatering, drying, and processing steps will vary depending on who is buying the material and what they intend to do with it The coproduct value has the ability to offset project costs, cover operational costs, and/or retire project debt service depending on how much coproduct is generated and its negotiated value
14
Biomass Coproduct Characteristics The algal coproduct can be considered as a direct replacement for petro-chem markets as well as biomass feedstock for a variety of products. Algae is largely made up of protein, lipids (fat) and carbohydrates The biomass is a poly-culture but made up of generally 2 or 3 typical families of algae
15
Potential Biomass Markets Those interested in purchasing the algal coproduct include a wide range of industries and manufacturers Opportunities for sales include soil amendment, specialty chemicals, biofuels, plastics, specialty fibers, protein supplements, animal and aquaculture food, pharmaceuticals, solvents, urethanes, food colorants, etc. Gross values range from $0.50 to $1.50+ per pound (dry weight)
16
FDL Demonstration
17
FDL Demonstration Results Extensive Sampling Nutrients
Drinking Water Analysis Evaluate potential for water reuse
Phosphorus Speciation Metals Treated water Algae
Bacteria
18
FDL Demonstration Results
19
FDL Demonstration Results
Pilot Influent SNRP Pilot Effluent SNRP
Clearas • Influent 0.56 mg/L TP • Effluent 0.031 mg/L TP
20
FDL Proposed Design
21
FDL Next Steps Permit Expiration
12/31/2017 TMDL Complete Summer 2018 Decision 2018-2019
• Permit Application • MDV Application
• Obtain Waste Load Allocation
• Tertiary Treatment • Water Quality Trading • Adaptive Management • Combination
22
Questions
23
