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Peter Naylor

A biological wastewater treatment process for use in high temperatures.


Project supervisor

Project description

Governments in the Middle East are pursuing ways of increasing the re-use of wastewater for irrigation. This is due to high potable water production costs and high per capita potable water consumption. There is also a desire to improve environmental performance.

Governments achieve this by privatising wastewater assets. All stages, from design and financing to operation and maintenance, are privatised. The private sector delivers assets through long term concessions and strict performance standards. The process enables governments to transfer the responsibility of performance risk to the private sector. This ensures the quality of treated wastewater for irrigation use.

I will investigate and optimise a biological treatment process at high wastewater temperatures. Compliance to standards has legal, contractual, reputational and financial implications. My research will inform designers of wastewater plants for hot climates. Performance standards are high, and high temperatures can have a negative effect on performance. The research will also provide seasonal process guidelines. These will be useful for the operators of wastewater assets to ensure compliance and to minimise the risk of financial penalties.


Horan NJ, Parr J, Naylor PJ. Evaluation of tracers for the determination of the mixing characteristics of activated sludge reactors. Environmental Technology 1991. 12:7, 603-608.


Operation and maintenance of wastewater treatment plants


  • BSc (Hons) Applied Biology
  • MSc (Eng.) Public Health Engineering