Newsletter from January 2020


Onder, Caliskaner, Ph.D., P.E.
Vice President with Kennedy/Jenks Consultants

Advanced Primary Treatment

Tuesday – January 21, 2020 at 6 pm

Clay Pit Restaurant


Downtown Austin, 1601 Guadalupe Street


1/21/20 6:00pm

Advanced Primary Treatment

Advanced primary treatment (APT) is used at wastewater treatment plants (WWTPs) to enhance total suspended solids (TSS) and organic removal efficiencies of the primary treatment process. Primary effluent filtration (PEF) and primary filtration (PF) are APT technologies that enhance primary treatment performance as compared to primary sedimentation. For PEF systems, filtration follows primary sedimentation before the secondary treatment process. For PF systems, filtration simply replaces primary sedimentation. TSS removal efficiency is significantly higher than the TSS removals (50-60%) typically obtained with primary sedimentation. PF and PEF systems achieve an overall 75-85% TSS and 45-65% biochemical oxygen demand (BOD) reduction depending on influent characteristics. PF and PEF offer significant energy and capital cost savings via carbon diversion, including:

  1. Decreased electrical energy required for aeration in secondary treatment because of reduced organic loading to secondary treatment,
  2. Increased gas energy production in the anaerobic digestion process resulting from the high organic energy content of the volatile suspended solids (VSS) removed by PF or PEF,
  3. Expanded secondary treatment capacity by reducing the organic loading upstream of the secondary process, and
  4. Reduced primary treatment footprint with the PF technology. The treatment and operational performance of the first full scale and several demonstration-scale PEF and PF projects will be presented. In addition to PEF and PF, other APT technologies including rotating belt filters and micro-screens will also be included in this presentation.

Dr. Caliskaner, is a Vice President of Kennedy/Jenks Consultants working as a National Technologist for projects across the US. Onder has conducted research on wastewater filtration and process modeling during his Ph.D. study at the University of California at Davis. He has an M.S. degree in Civil and Environmental Engineering from the University of Illinois at Urbana-Champaign and he is a registered civil engineer.

His main research and engineering interests during his 22-year career included: wastewater filtration (primary and tertiary), carbon diversion, advanced primary treatment, process modeling, energy savings, and water reuse. Dr. Caliskaner is recognized as the industry expert in primary filtration. He has been the principal investigator and project manager for several primary effluent and primary filtration research and demonstration projects which led to a fast-emerging technology offering many significant benefits at WWTPs.

Meeting Location, Cost, and Parking

Cost for Member and Guests

$20 / Students $5 – includes dinner and a beverage – Click here to Prepay via PayPal orcredit card

Free parking is available across the street from the restaurant in the Attorney General
Parking garage, after 6 pm.

Mathcounts Volunteer Opportunity

Test proctors and graders needed for the Greater Austin Area MATHCOUNTS 2020 Competition on February 1st, 2020, please contact Matt Rector if interested at

YP Update

Recently Completed Events :

  • Coats for Kids – 12/7 – Palmer Event Center

Sponsorship alternatives have been developed in a way of keeping meeting cost low for all attendees. Sponsorship options include Classic (meeting), Gold, Platinum, and more! For more details, please contact Chris Pasch 512-452-5905,

Special Thanks to the Central Texas Section

Platinum Sponsors

Environmental Improvements, Inc., established in 1966 is a Manufacturer’s Representative firm specializing in water and wastewater treatment. We represent a complete line of manufacturers capable of treating all variations of municipal water and wastewater applications. Coupled with our product service we have been providing treatment equipment and solutions in Texas for over forty-five years.

Municipal Valve & Equipment Company provides Utilities and their Consultants flow control solutions including drainage backflow prevention, pump/flow control and critical energy dissipation. Our service team will repair your actuators and control valves onsite. Request a quote to remove and replace antiquated valves and actuators with our industry leading products turnkey!

At Plummer, we truly believe that Water is Precious…
As a result, our practice has been focused on the protection and development of water resources for our clients and their customers for 40 years. We are a firm of over 120 engineering and scientific professionals dedicated to planning and design of water infrastructure. Dedicated to water resources and environmental engineering, our firm balances sound engineering principles with innovative technology tailored to our clients’ needs. From initial project kick-off, through stringent QC review, to a completed project, our focus stays on developing cost-effective
solutions for our clients. We are involved from project inception to implementation and every step in between. It is what we do every day, as opposed to what we do when we have that type of project. We are proud to be one of the top engineering firms in Texas and Louisiana (ENR TX&LA 2018). Because of our focus on water-related matters, our engineers and scientists have become recognized experts in their fields at the local, state, and national level. Our motto is “quality deliverables on schedule…without exception.”

When you work with Stantec, you work with an award-winning team of more than 22,000 specialists working in over 400 locations, with over 150 staff in Austin. We collaborate across disciplines and industries to bring infrastructure projects to life. Our work—engineering, architecture, interior design, landscape architecture, surveying, environmental sciences, project management, and project economics, from initial project concept and planning through design, construction, and commissioning—begins at the intersection of community, creativity, and client relationships. Our local strength, knowledge, and relationships, coupled with our worldclass expertise, have allowed us to go anywhere to meet our clients’ needs in more creative and personalized ways. With a
long-term commitment to the people and places we serve, Stantec has the unique ability to connect to projects on a personal level and advance the quality of life in communities across the globe.

Hartwell Environmental Corporation represents leading manufacturers of water and wastewater treatment equipment used in municipal and industrial treatment facilities. Hartwell Environmental Corporation was founded in 1997. We have expanded from our headquarters in Houston to three branch offices in Austin and Arlington, TX and Tulsa, Oklahoma. Our expansion has allowed us to better serve the municipal and industrial facilities in the states of Texas and Oklahoma.

DCS Engineering, LLC is a full-service locally owned engineering firm with company headquarters located in Austin. DCS provides civil engineering consultingservices on small and large infrastructure projects, specifically municipal water, wastewater, and transportation planning, permitting, design, construction administration, and operational trouble shooting.

DCS’s list of services includes managing and providing master planning; modeling; water supply; CIP list development; design of elevated storage tanks, pumping stations, ground storage tanks, waterlines, reclaimed water systems, water treatment plants, wastewater treatment plants; process design; plant process analysis/trouble shooting; lift stations; sanitary sewers, sewer rehabilitation; odor and noise control; biosolids treatment; assimilative modeling; TPDES permitting; mechanical, structural, roadway design, and drainage. Simple solutions to complex problems, integrity, and open communication with Owners and Operators are the foundations upon which the firm has been built.

Gold Sponsors

Working with local governments and municipalities for more than 50 years, Hanson understands the challenges and the diverse demands placed on your organization and staff. Our experienced team offers a range of planning, engineering and management services, from bridge work, facility design and transportation planning to water system design, utility coordination and environmental studies. We also are available to assist you with public-involvement initiatives and communicating the challenges and potential solutions with members of your community. While we are consistently recognized for dependable, quality work, it is our hands-on approach that sets us apart — an approach based on quality consulting; honest answers; and practical, cost- effective solutions.

Special Thanks to the Central Texas Section

January Meeting Sponsor

Kennedy Jenks is a full-service, multi-discipline engineering and environmental sciences consulting firm that has earned a reputation for excellence and innovation in planning, design, and construction services for public and private clients nationwide. With 100 years of engineering excellence and more than 380 staff in 28 offices across the United States, our ability to work together seamlessly across geographic boundaries, coupled with our local team resources allows us to deliver projects with efficiency and accuracy.

Special Thanks to the Central Texas Section

Corporate Sponsors

WEAT CTS Officers


Greg Kirton 512-972-2053


Chris Pasch 512-687-2162


Jessica Vassar 512-617-3100


Will Chandler 512-338-4212


Sean Mason 512-646-2238

Section Rep

John Marler 512-912-5188


Jason Bybel 512-338-1704

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