Development of Computational Fluid Dynamic Models for the Design of Waste Stabilisation Ponds

TL;DRAbstract

Waste stabilisation ponds (WSP) are a popular form of wastewater treatment worldwide, especially for rural-based manufacturing plants and small community sewage treatment. Ponds offer a robust and operationally simple technology, which are inexpensive where land is available, and have the potential to provide a considerable degree of treatment. However the continued use of WSP is being undermined by their inconsistent performance relative to current discharge requirements, particularly with respect to suspended solids, pathogen and nutrient removal. In a climate of increased public awareness of pollution, and the ever more stringent environmental protection regulations, novel pond designs need to be developed, and existing ponds retro-fitted, to improve their performance. This dissertation investigated the hydraulic modelling of non-mechanically mixed ponds, and produced a modelling framework from which improved pond designs could be evaluated. Computational fluid dynamics (CFD) simula

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