International Society of Science and Applied Technologies |
|
Performance Analysis and Design Improvement of a Sludge Dewatering System | ||||
Author | Derrick C.P. Ng
|
|||
Co-Author(s) | Eric T.T. Wong
|
|||
Abstract | To comply with the government policy on the dewatering of sludge produced after sewage treatment process, efforts have been directed at improving the performance of sludge dewatering systems (SDS) in Hong Kong. This paper shows how selected essential components of a sludge dewatering design can be improved. In particular, the performance problems found including marginal discharge capacity of screw conveyor in sludge handling, long response time in screw rotation reversing, sewage leakage through mechanical seal at power shaft and drain blockage due to sludge compression were addressed. The operating principles of sludge dewatering are first introduced, followed by an implementation of the proposed design improvement. An equipment alternative to existing design was also evaluated.
|
|||
Keywords | centrifuge, screw conveyor, dewatering, filtration, expression | |||
Article #: 23-279 |
August 3-5, 2017 - Chicago, Illinois, U.S.A. |