Scenario Studies into Advanced Particle Removal in the Physical-Chemical Pre-treatment of Wastewater

Scenario Studies into Advanced Particle Removal in the Physical-Chemical Pre-treatment of Wastewater

Van Nieuwenhuijzen, A.F.

Van der Graaf, J.H.J.M. (promotor)
Rulkens, W.H. (promotor)

Civil Engineering and Geosciences

2002-01-21

The research dealt with in this dissertation had the objective identifying the specific roles of particulate matter in wastewater influent and its inherent characteristics. In addition, advanced particle removal techniques for the development of more sustainable treatment scenarios based on physical-chemical pre-treatment of wastewater were researched. The specific research theme was part of a research project with the overall objective identifying the possibilities of physical and physical-chemical pre-treatment techniques as basis for the development of more sustainable wastewater treatment scenarios in the Netherlands. Within this research, the role of particles in wastewater systems was of particular interest. Knowledge was gained about the contribution of particles regarding the pollution of wastewater due to adsorbed or incorporated pollution fractions on or in particulate material. Furthermore, the effect of particle removal in the pre-treatment on the performances of total wastewater treatment systems and the related environmental criteria and costs were explored. By means of a newly developed scenario analysis, by which wastewater treatment system based on physical-chemical pre-treatment can be designed and evaluated on environmental criteria and costs, it was identified that advanced particle removal in the pre-treatment leads towards energy savings and compact design. Within the research a new analysing technique, the so-called wastewater fractionation on particle size, was developed and used to understand, determine and predict particle removal in different physical-chemical pre-treatment techniques. The applicability of coarse media filtration and direct membrane ultrafiltration as a pre-treatment technique were experimentally investigated. Especially direct membrane filtration offers several intriguing opportunities for specialised applications.

wastewater treatment
pre-treatment
particle removal

http://resolver.tudelft.nl/uuid:9368124f-132c-4cd1-840d-59060882f5c7

Delft University Press

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Institutional Repository

doctoral thesis

(c) 2002 A.F. van Nieuwenhuijzen