文档介绍：Advances in Environmental Research 4Ž. 2000 245᎐249
Determination of the optimal dose of polyelectrolyte
sludge conditioner considering particle sedimentation
effects
U
Chih Chao Wua , . Leeb, Chihpin Huangc
aInstitute of En¨ironmental Engineering & Science, Feng Chia Uni¨ersity, Taichung, Taiwan, PR China
bDepartment of Chemical Engineering, National Taiwan Uni¨ersity, Taipei, Taiwan, PR China
cInstitute of En¨ironmental Engineering, National Chiao Tung Uni¨ersity, Hsinchu, Taiwan, PR China
Accepted 22 May 2000
Abstract
The specific resistance to filtrationŽ. SRF of sludge was determined using both a leaf filter and a Buncher funnel.
The filterability of a kaolin suspension and an alum sludge were characterized using SRF data and capillary suction
timeŽ. CST measurements. Filter orientation during the leaf filter test and stirring during the Buncher funnel test
affected the SRF values, and the optimal dosage of polyelectrolyte conditionerŽ defined as the dosage that yields the
minimum resistance to filtration. varied depending on the type of test used. Therefore, the optimal dose of
polyelectrolyte was an operationally defined value that depended on the geometry of the filter chamber and
fluidrparticle interactions, such as sedimentation. ᮊ 2000 Elsevier Science Ltd. All rights reserved.
Keywords: Sludge conditioning; Specific resistance to filtration; Parti