We work with operators to change the way existing equipment is used to reduce operating costs while improving water quality.
Aeration, one example.
The bacteria that remove ammonia consume a lot of oxygen.
At considerable cost.
Much of the cost of aeration can be reduced by cycling air on and off to allow the bacteria to remove BOD while removing nitrates to achieve better total-nitrogen removal. Electrical savings generally offer the biggest savings opportunity; and aeration equipment is almost always the biggest source of electrical use.
Mixing, another example.
Oftentimes better treatment can be realized by shutting mixers off for extended periods of time.
Allowing a manageable amount of biological solids to settle can enhance nitrogen and phosphorus removal.
The energy savings can be significant.