Tertiarytreatment primarily focuses on the elimination of nutrients like phosphorus and nitrogen from #wastewater, which plays a crucial role in mitigating downstream consequences, such as algal blooms and eutrophication, that can harm ecosystems and habitats. #Water and #wastewatertreatment aim to elevate water quality to meet domestic and industrial standards or fulfill specific criteria for the safe release of water. This process also includes deodorization, decolorization, and potential oxidation as necessary.