Experimental analysis of centrifugal dewatering process of polyelectrolyte flocculated waste activated sludge
Resource
Water Research 35 (10): 2377-2384
Journal
Water Research
Journal Volume
35
Journal Issue
10
Pages
2377-2384
Date Issued
2001
Date
2001
Author(s)
Chu, C. P.
Abstract
The study experimentally investigated the centrifugal separation of moisture from activated sludge subject to cationic polyelectrolyte flocculation. An arm-suspended centrifuge was employed which allowed in-situ detection on all positions of interfaces of centrifuged sludge as functions of time. Experimental results revealed that, sludge flocculation would yield a significant sedimentation effect at the first phase of centrifugation. Therefore, not as suggested in conventional centrifugal-filtration models, the most significant moisture-removal stages included filtrate to flow through a wet cake. Moreover, an optimal rotational speed exists at which the moisture-removal rate reaches a maximum value. New theories/correlations are required to describe centrifugation dewatering of polyelectrolyte flocculated sludge.
SDGs
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
20.pdf
Size
345.09 KB
Format
Adobe PDF
Checksum
(MD5):67ac0a3abf91e2e005557118f5da4ded