1. Remove large particles: The first step of sewage treatment is usually to remove large particles, which can be pretreated by devices such as grids or screens. Operators need to regularly remove the solid substances accumulated on the equipment to ensure the normal operation of the equipment.
2. Sedimentation tank treatment: After sewage enters the sedimentation tank, solid particles will settle to the bottom of the tank to form a sludge layer. In the process of sedimentation, operators should pay attention to control the water level in the tank and the operation of the stirring device to ensure good sludge sedimentation effect.
3. Biochemical treatment: the precipitated sewage enters biochemical treatment units, such as activated sludge process and biological filter. In the process of biochemical treatment, it is necessary to ensure the healthy operation of biological flora and suitable environmental conditions. This includes controlling the operation of aeration system and keeping proper temperature, pH value and redox potential.
4. Disinfection treatment: In some cases, it is necessary to disinfect the treated sewage to kill pathogenic microorganisms. Commonly used disinfection methods include ultraviolet irradiation and ozone oxidation. In the process of disinfection, it is necessary to ensure the normal operation of disinfection equipment and strictly control the dosage of disinfectant.
5. Deodorization: Sewage treatment plants that produce unpleasant smells need deodorization. This can be achieved by activated carbon adsorption, biological deodorization and other methods. Operators should pay attention to maintaining the function of deodorizing equipment and regularly replace or repair adsorption materials such as activated carbon.
6. Monitoring and maintenance: During the operation of sewage treatment equipment, regular monitoring and maintenance are needed to ensure the normal operation and performance of the equipment. For example, monitoring the treatment effect, keeping the equipment clean, and regularly maintaining and replacing parts.
In addition, operators need to know the relevant safety operation procedures and emergency treatment plans to ensure personal safety and the normal operation of sewage treatment equipment. Specific operation details and precautions should be determined according to the operation manual of specific equipment and the suggestions of suppliers. If you are unfamiliar with specific equipment or technology, it is recommended to consult relevant professionals or equipment suppliers for correct operation guidance.