Check out the short video below of the new concrete base that was recently poured in the aeration lagoon at the Ōtaki Wastewater Treatment Plant.
The aeration lagoon plays an important role in the treatment of wastewater. It mixes dissolved oxygen into the liquid, which binds with nitrogen to remove carbon and ammonia. Controlled microbial growth forms a carbon-dense sludge which settles to the bottom of a clarifier and is then scraped away for disposal.
The 2,000 cubic metre aeration lagoon was upgraded to eliminate leakage, and the works are now complete.
