Use of a Constructed Wetland to Polish Municipal Lagoon
Effluent – 2000-2007
|
Lead Researcher: Anna Crolla – acrolla@alfredc.uoguelph.ca
Prepared for: Township of Alfred and Plantagenet
Partners: Stantec Consulting Ltd., Ontario Clean Water Agency,
Federation of Canadian Municipalities, Ontario Ministry of Agriculture,
Food and Rural Affairs |
| A constructed wetland demonstration system has been built
to polish the municipal lagoon effluent from the Village of
Alfred. The treatment lagoons have an annual discharge in the
spring and have currently reached maximum capacity; inhibiting
further population growth or expansion of the local agri-food
industries. The demonstration wetland system is designed to
treat 15% of the village’s municipal wastewater, which
represents a wetland influent flow of 155 m3/day or 23,250 m3/year.
A monitoring program was put in place to evaluate the wetland
as a cost effective means to treat the municipal lagoon wastewater.
The monitoring program evaluates the wetland’s ability
to polish the municipal lagoon effluent to meet the Spring/Summer/Fall
discharge criteria set by the Ontario Ministry of the Environment
(MOE) for the receiving water body (Azatica Brook). The approval
of the Alfred wetland will allow the village to increase its
capacity for municipal wastewater treatment. |
