Introduction
Approximately 12% of Australian households are not connected to centralised sewerage systems and hence use on-site technologies for the management of their wastewater (Geary and Gardner, 1996 in [1]). In 2001 the failure rate for on-site sewage management systems (eg septic tanks) in the Lismore City Council area was found to be 44% [2]. In Europe, constructed wetlands (reed beds) are increasingly being adopted [1]. Given these figures and the many studies confirming the...
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