Settling behaviour of polymer flocculated water-treatment sludge I: analyses of settling curves

YQ Zhao - Separation and Purification Technology, 2004 - Elsevier
Settling behaviour of polymer conditioned water-treatment sludge was investigated in this …
a 30 min settling test in 100 ml measuring cylinders. In this study, the series of settling tests in …

Settling behaviour of polymer flocculated water-treatment sludge II: effects of floc structure and floc packing

YQ Zhao - Separation and purification technology, 2004 - Elsevier
… on thickening behaviour is still lacking. In particular, the interaction between polymer … water
treatment sludge, commonly known as alum sludge, is complex and the settling behaviour of …

[PDF][PDF] Settling tests

E Torfs, I Nopens, MK Winkler… - … in wastewater …, 2016 - experimentalmethods.org
… Moreover, settling also plays an important role in new … the settleable components (raw
wastewater, activated sludge, and … by distinctly different settling behaviours. This section presents …

Settling behaviour of aerobic granular sludge

A Nor Anuar, Z Ujang… - Water Science and …, 2007 - iwaponline.com
… Meanwhile, from an operational point of view, the settling period in a wastewater treatment
final clarifier is a standstill period. It is therefore desirable to keep this period as short as …

Modelling the settling behaviour of fractal aggregates–a review

P Tang, JA Raper - Powder technology, 2002 - Elsevier
… Therefore, it is an important property in floc settling processes used in water treatment.
The fractal dimension of an aggregate varies from 1 to 3, with a value of 3 corresponding to a …

Effect of coagulation conditions on the dewatering properties of sludges produced in drinking water treatment

DI Verrelli, DR Dixon, PJ Scales - Colloids and Surfaces A …, 2009 - Elsevier
… Although the plant sludges are not the focus here, it is observed that despite different
settling behaviour and different p y (ϕ) in the filtration region, the R(ϕ) curves at high volume …

Experimental analysis and simulation of settling process

O Flamant, A Cockx, V Guimet, Z Doquang - Process Safety and …, 2004 - Elsevier
… =settling) is a major step since it is used in about 95% of drinking water treatment plants. …
was chosen to represent the hydrodynamics behaviour of the settling process in details. Initial …

A new settling velocity model to describe secondary sedimentation

E Ramin, DS Wágner, L Yde, PJ Binning… - Water Research, 2014 - Elsevier
… sensitive unit operations in biological wastewater treatment plants. The maximum … compression
settling behaviour of activated sludge and the development of advanced settling velocity …

Experimental Results for the Settling Behaviour of Particle‐Fiber Mixtures

M Feist, H Nirschl, J Wagner, G Hirsch… - … Separation in Science …, 2007 - Wiley Online Library
… We observe a different sedimentation behaviour according to the concentration of fibres …
behaviour of fibres and particles is necessary for many applications. For wastewater treatment

Characteristics and settling behaviour of particles from blast furnace flue gas washing

J Kiventerä, T Leiviskä, K Keski-Ruismäki… - Journal of environmental …, 2016 - Elsevier
… -flocculation, the water treatment chemical is added to the water in order … could provide high
quality process water, but the major … to the settling tanks where the water treatment chemical (…