First full-scale trials of pebble matrix filtration

Rajapakse, Jay, Sumanaweera, S., Gallege, S., & Thillainathan, V (2010) First full-scale trials of pebble matrix filtration. In Proceedings of the International Conference on Environment 2010 - Green Technologies for the Benefits of Bottom Billions, Universiti Sains Malaysia, Penang, Malaysia.


Protecting slow sand filters from high turbidity waters by pre-treatment using Pebble Matrix Filtration (PMF) has been studied in the laboratory at University College London followed by pilot field trials in Papua New Guinea and Serbia. Subsequently, the construction of two full-scale PMF units, one out of concrete (4.8m x4.8m x 3.0m high) and the other using pre-cast Ferro-cement panels (900mm x 1600mm x 20mm thick) with an effective diameter of 4.7m and 3m height, and the combined effective plan area of 40 m2 was completed to protect an existing Slow Sand Filter system at the National Water Supply Drainage Board (NWSDB) in Sri Lanka. Although the plant was completed in April 2008 due to some major repairs to address some leaks and other construction defects in both filters, monitoring was intermittent until November 2008. The results on the plant performance are presented here along with some of the construction problems encountered during the project.

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ID Code: 70476
Item Type: Conference Paper
Refereed: No
Additional URLs:
Keywords: Pebble Matrix Filtration, Full-scale Trials, Sri Lanka, Slow and Filtration, Ferro-cement Tank, Wold Bank Development Marketplace
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2010 Please consult the authors
Deposited On: 24 Apr 2014 04:57
Last Modified: 24 Apr 2014 04:57

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