Proceedings

Demand for clean water has increased considerably in recent years due to climate change and increased population density in urban and rural areas. Grey water recycling has become of increasing interest as a water conservation method in reducing stress on water resource.
This report describes a novel approach to grey water treatment focusing on the removal of organic and biological contaminants. The process is based on the adsorption of contaminants onto a patented graphite intercalation compound supplied under the trade name of NyexTM.
It utilises two fundamental elements: adsorption of contaminants and electrochemical regeneration of Nyex. Experimental results show that the uptake of organic contaminants onto Nyex is very fast with the majority of adsorption taking place within 5 minutes. A 4-log reduction in coliform was also observed with results from the electrochemical regeneration test indicating that up to 100% regeneration efficiency is achievable.