Accelerated aggregation kinetics and hydrodynamic floc separation for municipal water treatment
Details
Speakers
Accelerated aggregation kinetics and hydrodynamic floc separation for municipal water treatment
This paper reports on improvements to aggregation kinetics of colloidal particles in municipal water treatment by injection of selected aggregation accelerators as seed for rapid floc formation. A high throughput, continuous flow, hydrodynamic separation for membrane-less, size-selective particulate extraction has recently been reported. In addition to traditional centrifugal effects, the transverse flow driven by centrifugal force created in spiral flow channels result in transverse migration of micron-sized neutrally buoyant suspensions which are focused into a band and then diverted for extraction. The combined effects of the spiral mixer to generate denser and uniformly sized pin floc, accelerated floc growth, and the immediate spiral separation of the floc allows for elimination of flocculation and sedimentation steps, resulting in significant savings in reduced land and chemical cost, and faster processing time from raw to finished water.
Additional information
Our work is centered around a series of Focus Areas that we believe are the future of science and technology.
We’re continually developing new technologies, many of which are available for Commercialization.
PARC scientists and staffers are active members and contributors to the science and technology communities.