Sewage Treatment Plant Process Design

The construction and operation of sewage treatment projects are costly and constrained and influenced by various factors. Among them, the optimization and selection of sewage treatment process proposal have a particularly critical impact on the investment and operation management of sewage treatment. Therefore, it is necessary to start from the perspective of overall optimization, comprehensively consider the properties of sewage and the requirements for treated effluent, and propose the best sewage treatment process plan. 

Process Characteristics

@. The process adopts the conventional method, combination of hydrolytic acidification + contact oxidation + precipitation + disinfection, which is mature and reliable.

@. The sludge precipitated from the sedimentation tank in the process is lifted to the acidification sedimentation tank for re-nitrification treatment,resulting in a small amount of remaining sludge in the system. 

@. The working program of the main control equipment such as blower and submersible pumps in the system is automatically adjusted to reduce the operating workload and achieve automatic work, and unnecessary human damage can be reduced.

@. By using the contact oxidation treatment process, which mainly removes organic pollutants, so the removal rate of pollutants can be improved to ensure that the effluent meets the discharge standards; and due to the prolongation of the contact oxidation time, while removing the organic pollutants, NH3-N can also be transformed;

@. The processing system is modular, making construction simple and convenient.

AO Technical Process

Sewage treatment tank adopts A2/O process, which ensures the removal effect of COD, ammonia nitrogen, total nitrogen and also strengthens the removal effect of phosphorus.sewage treatment tank  adopts biofilm process, where microorganisms mainly grow on spherical fillers, which can achieve the separation of hydraulic retention time and sludge retention time, and help to enrich the specialized functional microorganisms which have a long generation time and a good treatment effect, and the biofilm is microbial aggregation with certain thickness, and compared with activated sludge method, biofilm method is more resistant to shock load and the operation of the equipment is more stable. SMC sewage treatment tank adopts the design concept of low volumetric loading, and the hydraulic retention time is more than 24 hours, which helps to increase the microbial self-oxidizing ability, and improves the quality of the effluent while reducing the production of residual sludge, and reduces the cost of sludge treatment and the cost of construction of sludge tanks. sewage treatment tank is simple and unmanned operation, the use of Internet of Things technology can realize remote mobile management to save operation and maintenance labor costs.