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Moreover, poly water tanks do not corrode or rust, which can be a significant issue with metal tanks. This longevity translates to reduced maintenance costs, as there are no protective coatings or regular treatments required to prolong their lifespan. With proper care, square poly water tanks can last for decades, providing reliable storage without the need for frequent replacement or refurbishment.
Secondary treatment focuses on biological processes to degrade organic matter. This is accomplished through aeration tanks, where microorganisms are introduced to consume organic pollutants. The most commonly used methods in secondary treatment include activated sludge systems and biofilm reactors. These processes can significantly reduce the biochemical oxygen demand (BOD) and total suspended solids in the water.
waste water treatment
