Wastewater treatment involves several stages to manage water discharged from homes, businesses, and industries. These stages include pre-treatment, preliminary treatment, primary treatment, secondary treatment, and sludge disposal. The goal is to reduce threats to water pollution by removing solid materials, decomposing organic matter with bacteria and algae, and further separating solids from treated water which is then discharged. Sludge is stabilized and applied to agricultural fields. The wastewater treatment plant laboratory conducts tests to monitor the effectiveness of the treatment process.