Floating treatment wetlands - Cultural and treatment values
Annual Conference
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Wetlands have been utilized in natural environment to treat waste, and this natural technology has been included in wastewater treatment plants as a polishing step in the forms of surface or more commonly subsurface flow wetlands. The success of the wetlands has been varied, with issues related to lack of maintenance and short circuiting.
Floating Treatment Wetlands system have been designed to utlised 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 process such as oxidation ponds, is more dominant.