Demonstration of Advanced Primary and Secondary Treatment Technologies for Energy and Performance Benefits to Wastewater Treatment
Caliskaner Water Technologies, Inc.
Recipient
Woodland, CA
Recipient Location
3rd
Senate District
4th
Assembly District
$3,070,153
Amount Spent
Active
Project Status
Project Update
To date, the project team has installed and resumed operations on two advanced primary systems: Cloth Disk Primary Filter, Proteus Filter. Demonstration of the following two advanced primary treatment systems have been completed: Microscreen and Flex BioFilter. All of the advanced secondary treatment systems (Microvi, Aerobic Granular Sludge, and Membrane Aerated Bioreactor) have been installed and are being demonstrated. The project team has submitted the draft final report for CAM review and comments. Project is transitioning towards close-out activities.
The Issue
Conventional primary treatment (CPT) requires long detention times through the use of large concrete basins which, in urban or space-restricted areas, can be problematic for expansion. Three promising advanced primary treatment (APT) technologies have demonstrated high removal efficiencies compared to CPT: the cloth depth filter, compressible membrane biofilter, and the Micro-Screen. The impact of APT effluent on advanced secondary treatment (AST) performance is an emerging field of study. To date, a full-scale combined APT and AST system has not been implemented and operated at a WWTP to quantify the energy savings potential of advanced wastewater treatment.
Project Innovation
The project includes the design, installation, demonstration, and evaluation of advanced primary treatment (APT) and advanced secondary treatment (AST) technologies, which can achieve significant electrical energy savings at wastewater treatment plants (WWTPs) compared to conventional primary treatment (CPT) and conventional secondary treatment (CST) systems. The project will document the first application of combining full-scale APT and AST technologies in a holistic, integrated system that quantifies their complementary performance. Additional benefits of APT, AST, and combined APT and AST systems include increased treatment performance and increased treatment capacity and reductions in greenhouse gas emissions, energy consumption, and treatment footprint.
Project Goals
Project Benefits
By improving both primary and secondary treatment stages, WWTPs could operate beyond energy neutrality and into net energy production. Understanding this opportunity, several companies have developed APT and AST technologies. APT is a key strategic process in bringing about energy reduction and resource recovery. The most efficient method to advance and increase the performance of CST and/or AST is to improve primary effluent characteristics. APT technologies increase carbon diversion which increases the production of energy (in digestion) and reduces secondary treatment aeration energy requirements due to reduced organic loading and enhanced particle size characteristics. [br/][br/]Key benefits of APT followed by AST include exceptional treatment performance (>95% TSS and >95% BOD removal), 45-65% decrease in aeration energy consumption, and 30% increase in treatment capacity.
Affordability
Reduced capital, energy, operational and maintenance costs for wastewater treatment plants.
Reliability
All four demonstrated advanced primary treatment systems and all three demonstrated advanced secondary treatment systems have shown to increase the treatment reliability compared to the conventional treatment systems.
Environmental Sustainability
The demonstrated advanced primary and secondary treatment technologies have shown to be effective in decarbonization of wastewater treatment plants by reducing energy and treatment volume (and hence construction concrete) requirements compared to conventional wastewater treatment methods.
Key Project Members
Onder Caliskaner
Subrecipients
HDR Engineering, Inc
Black & Veatch Corporation
Water Research Foundation
AECOM Technical Services
Aqua-Aerobic Systems, Inc.
Process Wastewater Technologies LLC
Linda County Water District
BASE Energy , Inc.
WesTech, Inc.
George Tchobanoglous
Stantec Consulting Services Inc.
Huber Technology, Inc.
Suez Inc.
Microvi Biotech, Inc.
DR H20 LLC
Match Partners
HDR Engineering, Inc
San Francisco PUC
Water Research Foundation
AECOM Technical Services
Aqua-Aerobic Systems, Inc.
Process Wastewater Technologies LLC
Linda County Water District
WesTech, Inc.
George Tchobanoglous
Stantec Consulting Services Inc.
County Sanitation District of Los Angeles County
Huber Technology, Inc.
Caliskaner Water Technologies, Inc.
Suez Inc.
Microvi Biotech, Inc.
Dynamita
DR H20 LLC
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