The integrated sewage treatment equipment adopts A / O treatment process to remove organic pollution and improve the removal rate of pollutants. Ammonia nitrogen can also purify while removing organic pollution. By rationally selecting design parameters such as the surface load of the sedimentation tank, the effective water depth and the slant bucket inclination angle, the solid flow separation effect is improved. Two sets of sewage treatment facilities, such as anoxic tank, contact oxidation tank and sedimentation tank, are operated in parallel, which is flexible in operation and adapts to changes in water quality and volume.
The integrated sewage treatment equipment adds disinfectant (chlorine tablets, etc.) to the disinfection tank according to the needs. The water in the second sedimentation tank passes the disinfectant metering tank, and the medicine is partially dissolved to achieve the purpose of disinfection. After the treated water stays in the fresh water tank for about 0.5 hours, it meets the discharge requirements and can be discharged to the outside through the water body;
After the integrated sewage treatment equipment is put into operation and normally running, the system can enter the automatic operation state. The operation of the pump and fan is switched to the automatic operation state on site. As the electrical operation control cabinet adopts PLC automatic control program, the program has been programmed before the equipment leaves the factory (usually switched once per shift), and there is no need to set it separately during operation; the user should check the quality of the effluent water from time to time to ensure integrated sewage treatment Normal operation of the device.
When the aeration time is long or the aeration amount is too large, high nitrification will occur in the aeration tank, making the nitrate concentration in the mixture higher. At this time, due to denitrification, a large amount of N 2 or NH 3 may be generated in the sedimentation tank, and the sludge will float.
In addition, whether the aeration distribution is balanced and stable is also an important factor affecting the treatment effect and energy consumption. When the aeration system is operating, the distribution of the aeration will change due to various disturbances. For example, if the local aeration head is blocked, the airflow will decrease and the flow will increase elsewhere. Conversely, if the aeration head is damaged, airflow will increase and traffic elsewhere will drop sharply. These will unbalance the biological response and reduce the quality of treatment.