The design of a water treatment and research facility for the shark river in Happy Valley, Port Elizabeth

This treatise was born out of an ecological concern for the abandoned Boet Erasmus stadium in Happy Valley, Port Elizabeth. The derelict state of the stadium along with polluted urban waste water and contaminated water from the Shark River, has caused severe destruction to the unique ecosystems only found in this part of the metropole. The current environmental status of the stadium provides the foundations for investigations into an architectural intervention of a remedial nature to rehabilitate the valley and implement water remediation strategies to filter the polluted and contaminated water. The treatise further seeks to create environmental awareness of how important these ecosystems are in urban environments and what services they can provide for its citizens. The research conducted focused on the relationship between man and nature and how to successfully integrate the natural and built environments. This provided unique responses in developing an architectural and urban intervention that responded to the ecological issues of the derelict site and re-introduced nature into the city to enrich the natural environment to the advantage of both man and nature. Rhizofiltration has been employed as an water remediation strategy for the site, through using various aquatic plants such as water lilies to filter the contaminants and heavy metals in the water. The associated agricultural practices and water cleaning systems are managed by the architectural intervention. The project starts off as a series of wetland systems and a basic water lily farm which then develops into a water treatment and research facility, to harvest, process and research the flower by-products produced by the Rhizofiltration process. The water lilies have the ability to absorb the heavy metals and when saturated they are harvested and used as test subjects to extract and smelt the heavy metals to produce precious jewellery pieces. Through the process of biologically filtering the polluted and contaminated water, water lilies will thrive in the landscape and provide opportunity for cultivating indigenous plants to form part of the rehabilitation process of Happy Valley. As a result, the treatment process will provide natural public swimming areas to promote public awareness and participation. A site specific and an regenerative type of architecture will be investigated to facilitate the changing nature of the biological treatment processes and return the site to an environmentally sound state, which will contribute to the rehabilitation of Happy Valley