back to Technical Papers

CONFERENCE: WaterNZ 2010

ABSTRACT:
Wetlands have been utilized in natural environments to treat waste, and this natural technology has been included in wastewater treatment plants as a polishing step in the form of surface or, more commonly, subsurface flow wetlands. The success of wetlands has been varied, with issues related to lack of maintenace and short-circuiting.

Floating Treatment Wetlands systems have been designed to utilise this natural process whilst incorporating greater flexibility of deeper pond systems to accommodate fluctuations in volume and depth, and ease of maintenance.

This paper presents a comparison of floating wetland systems, including an evaluation of their suitability of wastewater treatment and effluent polishing in the New Zealand context, where natural wastewater treatment processes such as oxidation ponds, are more dominant