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Browsing by Author "Armitage, Neil"

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An Experimental Study on the Infiltration Potential of Stormwater Ponds in Zeekoe Catchment, Cape Town, South Africa

Author: Mavundla, Kgomoangwato Date: 2022 In early 2018, the city of Cape Town, with a population of approximately 3.8 million, was at risk of running out of water from the six large reservoirs to the east of the city. This was due to the worst drought in almost a century, which ... Read more
An investigation of the pollution contribution of catchments surrounding the Knysna Estuary, with implications for stormwater management

Author: Harvey, Alice Lindiwe Date: 2019 The Knysna Estuary is ranked highest in South Africa for conservation importance and is a haven for endemic marine species. The ecosystem services provided by the estuary include significant biodiversity value and amenity value for residents ... Read more
Century City as a case study for Sustainable Drainage Systems (SuDS) in South Africa

Author: Vice, Michael Alexander Pringle Date: 2011 South Africa's developing cities are experiencing rapid urbanisation, particularly in the major metropolises. Infrastructural development is a prominent component of the South African economy, and has been allocated hundreds of billions of ... Read more
A computational fluid dynamics model for sediment movement based on the unit stream power approach

Author: McGahey, Caroline Date: 2001 This thesis introduces a three-dimensional numerical model based on the unit stream power approach for the prediction of scour profiles. The unit stream power approach is employed to define the incipient motion criteria for the sediment ... Read more
Design flood peak determination in the rural catchments of the Eastern Cape, South Africa

Author: Hogan, K D Date: 2007 Rainfall is a natural occurring phenomenon, and is usually a welcome event, nourishing the earth and with it the fauna and flora. When the runoff is high, flooding occurs, leading to damage to the environment, property and even to loss of ... Read more
The evaluation and improvement of a sustainability index for intergrated urban water management in South African cities.

Author: Mureverwi, Charlene Date: 2009 Water is not only essential for maintaining life; it is a key component of sustainable social and economic development having links to, inter alia, health, 'sense of place', food production and industrial growth. Although progress has been ... Read more
An investigation into the initiation of local scouring around rectangular """"long"""" contractions

Author: Lyons, Simone Date: 2003 Includes bibliography. Read more
Managing the Water Quality of the Zandvlei Estuary using Sustainable Drainage Systems in the Diep Catchment

Author: Thewlis, Geordie Date: 2022 The Zandvlei Estuary is the only functioning estuary-wetland river system along the False Bay coastline and is therefore of extreme ecological importance. The estuary has and continues to face threats from excessive amounts of sediments and ... Read more
A measure of sustainability in the context of urban water management in South Africa

Author: Carden, Kirsty Date: 2013 The aim of this research was to develop an understanding of and measure the potential for sustainability in a South African urban water context. This was achieved through the use of a systems approach to develop and evaluate a composite index ... Read more
The measurement and reduction of urban litter entering stormwater drainage systems

Author: Marais, Mark John Date: 2003 The purpose of this thesis is to describe the results of this monitoring programme and to set out generic guidelines for litter management in South African urban catchments. Read more
Modelling local scour around bridge piers using TELEMAC

Author: Kabir, Alamgir Date: 2005 Scour at bridge crossings is a major cause of bridge failure. There are several different types of scour such as general scour, constriction scour and local scour. One of the most serious types is local scour which occurs as a result of vortex ... Read more
Numerical modelling of local scour in rivers using fluent 6.2

Author: Cunninghame, Margaret Date: 2005 Scour and deposition are natural processes which take place in a river as the stream profile adjusts to changing flow rates, sediment loads and other environmental conditions. Man-made obstacles to the stream flow such as bridge piers and ... Read more
Quantifying the potential for potable water savings in the Liesbeek River catchment

Author: Coulson, Daniel Date: 2014 The security of South Africa’s water resources has been identified as a major issue affecting the country’s potential for socio-economic expansion. With the realisation that current water management interventions require significant improvement, ... Read more
Quantifying the value of non-user benefits of improving water and sanitation in informal settlements

Author: Kobel, Dorothy Date: 2013 This study investigated the value among society of the benefits of improving water and sanitation in informal settlements. The benefits of improving water supply and sanitation have been widely researched, both at a societal and at household ... Read more
Review and gap analysis of Water Sensitive Urban Design (WSUD) in Windhoek, Namibia

Author: Nambinga, Linekela Elias Date: 2019 With an ever-increasing population and global warming, fresh water resources are nearing depletion resulting in a global water crisis. As a consequence, cases of drought have been reported worldwide especially in sub-Saharan Africa. In addition ... Read more
The link between Permeable Interlocking Concrete Pavement (PICP) design and nutrient removal

Author: Liu, Kimberly Date: 2020 Urbanisation, associated with the construction of ‘hard' impermeable surfaces such as roofs and roads, results in increased stormwater runoff peak flows and volumes and their associated pollutants into downstream receiving waters compared ... Read more
The measurement and reduction of urban litter entering stormwater drainage systems: Paper 2 - Strategies for reducing the litter in stormwater drainage systems

Author: Marais, Mark ; Armitage, Neil Date: 2004 A previous South African study looked at the removal of litter from the drainage systems once it was already there. Yet the litter problem cannot be addressed in an effective and sustainable manner without an effective integrated catchmentwide ... Read more
Understanding the use and disposal of greywater in the non-sewered areas of South Africa

Author: Carden, Kirsty Date: 2006 There is currently a strong drive from the South African government to attain adequate water and sanitation coverage throughout the country as a basic level of service. To meet this requirement the majority of authorities in urban and rural ... Read more
Using the movability number to model local clear-water scour in rivers

Author: Abban, Benjamin Date: 2007 Local scour is associated with a considerable number of bridge failures worldwide. It occurs at bridge piers and abutments as a result of interactions between complex flow features and the channel bed. The number of factors involved in the ... Read more