In sewage treatment plants (STPs), impurities are removed from wastewater before release into the environment. Household and industrial waste are handled at STPs, preventing pollution, protecting water bodies, and ensuring public health is maintained. Eliminating harmful chemicals, bacteria, and nutrients lessens water pollution and encourages cleaner ecosystems. Nonetheless, if improperly managed, they can also negatively impact the environment, such as the emission of greenhouse gases and residual sludge, which requires careful treatment. Correct STP activities are crucial to a healthy and sustainable environment.