Experience of pond design and operation in Arabia and Kenya is described.
In Saudi Arabia major stabilisation pond installations were built for the Three Cities Project at Hofuf, Buraidah and Qatif. Summaries of results, comment on performance achieved and implications for future stabilisation pond design are noted.
Recently commissioned ponds in Aden for both domestic and industrial sewages are featured and points of interest indicated.
The basis of the most recent designs now ready for tender for applications in Aden and Seiyun, P.D.R. Yemen are provided.
Conclusions are drawn regarding the future potential of pond treatment for disposal of waste water for re-use in irrigation.