Abstract
Chemical precipitation using alkaline solution is one of the most popular methods to remove heavy metals from industrial wastewaters in Taiwan. The resultant metal hydroxide precipitates are separated from wastewaters by gravity settling. To design continuous clarifiers, the settling characteristics of heavy metal sludge must be known. A series of batch settling tests were performed to gain design information for heavy metal sludge settling tank. The classic Kynch sedimentation theory and the nonlinear wave propagation theory were employed to depict the sludge band movement in batch settling tests. The variation of sludge concentration within the settling tank was viewed as a wave, and its wave velocity was calculated by the wave theory. The batch settling curves at varying initial solid concentrations were measured and satisfactorily predicted by the wave theory.
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.
