Successful Aeration in Extreme Cold Weather - Video
Winter temperatures have predictable effects on a wastewater lagoon. Cold weather reduces biological activity, causing BOD, sludge, and ammonia to build up. Even with ice present in the lagoon - our aeration systems ensure good mixing and circulation throughout the pond with, of course, the primary warm spot near the diffusers. Some precautions such as relaxing the tension on the laterals to account for the temperature change, and keeping the water level at least 4 feet above the diffusers allows the system to operate normally. When it gets really cold, you get to see something very interesting! The diffusers will continue to pump water, air will escape and have moisture in it, and it will freeze solid on the lagoon with great honeycomb mounds that look like termite mounds. These are called stooks and we see them in almost every application where the weather gets very cold. We have seen these series of stalagmites on the pond as tall as 6 to 8 feet!
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