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Engineering, demonstrating, optimizing, and validating advanced treatment technologies to achieve carbon diversion, decarbonization, process intensification, energy-efficient nutrient removal, and water resource recovery.
CWT works with technology developers, utilities, agencies, academia, and industry experts to demonstrate, validate, and implement innovative wastewater and water reuse technologies.
Bringing together diverse expertise to accelerate solutions.
Real-world testing for measurable performance.
Turning innovation into practical applications.
Cleaner water, lower emissions, and greater resource recovery.
What we do
From evaluation and demonstration to validation and optimization, CWT's goal is to ensure public utilities and agencies have access to innovative and emerging technologies.
Baseline Condition Characterization · Feasibility Evaluation & Conceptual Design · Technology Evaluation & Selection · Site-Specific Integration Planning
Pilot & Full-Scale Demonstration · Commissioning & Field Operation · Operator Training
Field Monitoring and Verification · Data Analysis · Carbon Footprint Evaluation · Energy & Treatment Performance Assessment · Process Modeling
Operation Strategy Optimization · Scale-Up · modeling-assisted optimized design
Peer-reviewed publications, proceedings, live seminars, webinars, technical site tours, presentations at local, regional, national and global venues and conferences
Demonstrated results
UP TO 30%
Reduction in aeration demand with Advanced primary treatment
UP TO 50%
Reduction in aeration demand with Advanced primary + secondary treatment
UP TO 80%
Primary Footprint reduction with Advanced primary treatment
UP TO 40%
Secondary Footprint reduction with Advanced primary + secondary treatment
As reported by project EPC-20-044, Demonstration of Advanced Primary and Secondary Treatment Technologies for Energy and Performance Benefits to Wastewater Treatment
Featured projects
Full-scale demonstrations and pilot programs

Full-scale demonstration of advanced primary and secondary treatment technologies showing significant energy efficiency and performance benefits.
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Demonstration project evaluating advanced sludge thickening and destruction technologies that enable decarbonization of wastewater treatment plants.
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Cost-effective and energy-efficient novel technologies evaluated for decarbonization of potable and non-potable water reuse technologies.
Read moreRecognition
Our research has been recognized by leading water industry organizations.

2022 · Water Environment Federation
Dr. Onder Caliskaner was awarded the Water Environment Federation (WEF) Eddy Wastewater Principles/Processes Medal, which recognizes outstanding research that makes a vital contribution to the fundamental principles or processes of wastewater treatment. The award recognized the paper “Performance Evaluation of First Full-Scale Primary Filtration Using a Fine Pore Cloth Media Disk Filter,” authored by Onder Caliskaner, George Tchobanoglous, Lilly Imani, and Brian Davis and published in Water Environment Research. The work documented the performance of the first full-scale application of fine-pore cloth media filtration for primary wastewater treatment, contributing to the advancement and broader understanding of innovative primary treatment technologies.

2019 · California Water Environment Association
First place award for primary filtration technology development. Principal investigator: Dr. Onder Caliskaner. Sponsors: California Energy Commission and Los Angeles County Sanitation District. Project Prime: Kennedy/Jenks Consultants. Demonstrated enhanced removal of particulates and organics and a related reduction in activated sludge process aeration energy requirements.

2018 · Water Environment Federation Technical Exhibition and Conference (WEFTEC)
Manuscript: 'Full Scale and Demonstration-Scale Primary Filtration Projects Show Great Promise.' This award recognizes those who advance knowledge, the dissemination of information, and continual experimentation and growth.