home › event - curved fluidic structures to improve aggregation kinetics in municipal water treatment


Curved fluidic structures to improve aggregation kinetics in municipal water treatment
Conferences & Talks

American Water Works Association (AWWA) Water Quality Technology Conference and and Exhibition (WQTC) 2008

18 November 2008
Cincinnati, Ohio



We report on improvements to aggregation kinetics of colloidal particles in municipal water treatment by the use of curved fluidic structures, resulting in up to 50% reduction in coagulant dosage. A novel high throughput, purely fluidic, continuous flow, membrane-less, size selective method for particulate separation has been recently reported where centrifugal force created in spiral flow channels generate transverse hydrodynamic forces to separate micron-sized neutrally buoyant particles which are further focused and diverted for extraction. Together, the improved aggregation and particulate separation offer a potentially transformative approach3 to the conventional practice of water treatment. The combined effects of the spiral mixers with improved agglomeration to generate denser and uniformly sized pin floc, and spiral separators for in-line clarification presents an opportunity to eliminate flocculation and sedimentation steps, resulting in potentially significant savings in reduced land use, chemical cost, operational overhead, and faster processing time from raw to finished water. This technology improvement is also directly relevant to other water applications, including: industrial water purification, waste water reclaim, power plant cooling tower, pre-treatment for RO, and almost any instance where reduction of TSS loading reduces clogging and extends the time between cleaning for many MF and UF filtration membranes.


upcoming events   view all 

The Experience When Business Meets Design
Brian Solis
27 October 2016
PARC Forum  

AI Case Studies: Pushing the Frontiers of Systems Engineering
Tolga Kurtoglu
9 November 2016 | San Francisco, CA
Conferences & Talks  

2016 AIChE Annual Meeting: Energy and Transport Processes
Corie L. Cobb
14 November 2016 - 15 November 2016 | San Francisco, CA
Conferences & Talks  

Printed Electronics USA 2016 - Visit PARC’s Booth #T20
Ross Bringans, Markus Larsson, Janos Veres
16 November 2016 - 17 November 2016 | Santa Clara, CA
Conferences & Talks