Abstract
A final-clarifier inlet design for improving the flow conditions and the settling efficiency is described. Numerical simulations and experiments are introduced in order to model and analyze the flow field as well as to evaluate the design criteria. It is demonstrated that inlet structures of primary and secondary clarifiers cannot be optimized by the same procedure. Although primary-clarifier inlet design is mainly concerned with dissipation of kinetic energy, secondary-clarifier inlet design requires the consideration of density effects on the flow field as well as flocculation properties of the activated sludge. The suggested design includes (1) an inlet expanding over the whole width of the tank, positioned at the bottom, and with a relatively low aperture height in order to reduce potential energy flux; (2) a series of angle bars beyond the inlet for dissipation of kinetic energy and decrease of velocity fluctuations; and (3) dimensioning the inlet volume as flocculation chamber. The introduced inlet ...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
