Provide PDF Format
AWWA WQTC71506
- Improvement in Calcium Carbonate Crystal Growth and Precipitation Kinetics with a New Generation of Chemical Reactor during Water Softening
- Conference Proceeding by American Water Works Association, 11/01/2009
- Publisher: AWWA
$12.00$24.00
This powerpoint presentation begins by providing a brief overview of how water softening controls inorganic scaling and fouling problems. A new generation of reactor, TURBOMIX, is presented that is equipped with antivortex baffles, internal sludge recirculation, and adraft tube reactor that enhances mixing efficiency and produces a highly homogenous mixture. A laboratory scale investigation is presented that had the following objectives: to reduce CaCO<sub>3</sub> nucleation and crystalsformation time to < 20 minutes; and, to determine the impacts of solids/sludge recirculation ratio,water quality, andco-occurring contaminants [PO<sub>4</sub>]. A pilot scale investigation was conducted on-site for six weeks to evaluate two technologies with and without sludgerecirculation: CFSTR + sand ballasted settling [ACTIFLO system]; and, TURBOMIX + sand ballasted settling [ACTIFLO system]. The study compared CaCO<sub>3</sub> crystal formation kinetics and determined the impact of sludge recirculation. Includes figures.
Related Products
AWWA WQTC69475
The Sensitivity and Specificity of All Methods Approved by USEPA for the Detection of Coliforms and ..
$12.00 $24.00
AWWA JAW64988
Journal AWWA - Lowering the Detection Limit for Arsenic: Implications for a Future Practical Quantit..
$15.00 $30.00
AWWA JAW72293
Journal AWWA - Behavior of Trace Inorganic Contaminants in Drinking Water Distribution Systems..
$15.00 $30.00
