Polymer conditioning of alum sludge and discrepancies between estimates of the optimum dosage


Autoria(s): Zhao, Yaqian; Papavasilopoulos, E.N.; Bache, D.H.; MacKinnon, Pauline
Data(s)

01/01/2002

Resumo

The paper outlines the effects of polymer conditioning on alum sludge properties, such as floc size, density, fractal dimension (DF) and rheological properties. Experimental results demonstrate that polymer conditioning of alum sludge leads to: larger floc size with a plateau reached in higher doses; higher densities associated with higher doses; increased degree of compactness; and an initial decrease followed by an increase of supernatant viscosity with continued increase in polymer dose. The secondary focus of this paper dwells on a comparison of the estimates of optimum dose using different criteria that emanate from established dewatering tests such as CST, SRF, liquid phase viscosity and modified SRF as well as a simple settlement test in terms of CML30. Alum sludge was derived from a water works treating coloured, low-turbidity raw waters.

Identificador

http://pure.qub.ac.uk/portal/en/publications/polymer-conditioning-of-alum-sludge-and-discrepancies-between-estimates-of-the-optimum-dosage(f7936bfa-016c-406e-a901-c715873a495b).html

http://www.scopus.com/inward/record.url?scp=2242449758&partnerID=8YFLogxK

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Zhao , Y , Papavasilopoulos , E N , Bache , D H & MacKinnon , P 2002 , ' Polymer conditioning of alum sludge and discrepancies between estimates of the optimum dosage ' Water Science and Technology , vol 46 (10) , no. 10 , pp. 115-121 .

Palavras-Chave #/dk/atira/pure/subjectarea/asjc/2300/2312 #Water Science and Technology
Tipo

article