Stratford enjoys sweet smell of functioning sewage lagoon

Some fine tuning, tweaks make lagoon function all year long, even in deepest winter

Nigel Armstrong
Published on June 17, 2014

The Town of Stratford's sewage treatment lagoon

©Guardian photo

The Mayor of Stratford is pleased there is no stink in the town this year.

Stratford sewage is treated in a lagoon highly visible to people entering the town off Hillsborough Bridge.

In past years, especially in the spring, a foul smell would waft over the area so the town has been trying different methods to reduce that.

It thinks it has the solution now, with new water circulating technology called Blue Frog about to be put in place on July 17. In the meantime, other measures are also working to encourage good bacteria to digest the waste through the entire year.

"Last year we de-sludged it and the second thing we did was to monitor it more closely," said Dunphy.

Additives to a lagoon increase biological and chemical breakdown of waste, which warms up the water, said Dunphy.

"Normally the lagoon will freeze over in the winter but this year, because of the changes, it did not freeze over, showing that it was warm so all the chemistry and biology is taking place during the winter," he said.

"Last year we made a few fine tunes and tweaks so that made the operation still function during the cold winter months so come spring, there is less build up to break down therefore less odour. In fact, no odour.

"I want to thank the staff and everyone involved in the lagoon," said Dunphy at the June council meeting recently.

"I think it is safe to say that the odour issue at the lagoon is a lot different than it was last year so it has improved substantially.

"I want to congratulate the staff for a job well done," said Dunphy.