Namibia Workshop Presentations

Two Workshops have been held on the 3-5 June 2010 and 29 – 30 April 2013.

2.2 Abstracts of Namibia Workshop (29-30 April 2013)

2.2.5 Integrated Algae Pond Systems for Waste Water Treatment

Presenter: Keith Cowan

Integrated Algae Pond Systems (IAPS) are a derivation of the Oswald designed Algal Integrated Wastewater Pond Systems (AIWPS®) and combine the use of anaerobic and aerobic bioprocesses to effect waste water treatment. IAPS technology was introduced to South Africa in 1996 and a pilot plant designed and commissioned at the Belmont Valley WWTW in Grahamstown. The system has been in continual use since implementation and affords a secondarily treated water for reclamation according to its design specifications which most closely resemble those of the AIWPS® Advanced Secondary Process. In this presentation IAPS as a waste water treatment technology is examined in relation to design and operation, the underpinning biochemistry of nutrient removal by algae is described, and a retrospective is provided on the demonstration system at the Belmont Valley WWTW. In addition to details of the process flow, several shortcomings and/or oversights are highlighted and in particular, the need for an appropriate tertiary treatment component. The purpose of this overview is to provide a synthesis of available information on IAPS and an appraisal of its use in domestic waste water treatment.

African Caribbean and Pacific Group of States Science and Technology Programme
Grant Contract: FED/2009/217066

This Action is funded under the ACP Science and Technology Programme

(http://www.acp-st.eu/about/)

by the European Union and implemented by the ACP Secretariat.

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