Water Treatment Integrated Unit, based on the operational experience of domestic wastewater treatment plants, combined with our scientific research achievements and engineering practices, we have designed an integrated organic wastewater treatment unit. The primary focus of the Water Treatment Integrated Unit is the treatment of domestic wastewater, utilizing the mature biochemical treatment technology of contact oxidation as the main method. The sludge settled in the sedimentation tank of the water treatment integrated unit is transferred to the acidification sedimentation tank for further digestion, resulting in minimal residual sludge in the system. The working procedures of the main control equipment, such as fans and submersible pumps, are automatically adjusted to reduce manual labor and achieve automatic operation, thereby minimizing unnecessary human damage. By employing a contact oxidation process primarily for the removal of organic pollutants, the removal rate of pollutants is improved, ensuring that the effluent meets the discharge standards. Additionally, with the extended contact oxidation time, the conversion of NH3-N is also achieved while removing organic pollutants. The wastewater treatment system features a real-time water quality monitoring system, including flow rate, pH value, and residual chlorine, to facilitate timely monitoring of effluent quality and adjustment of equipment operation. The treatment system is modularized, making construction simple and convenient.