The underground integrated sewage treatment equipment has low organic load during operation, and the sludge continues to be in an endogenous metabolic state. It also degrades the sludge while treating the sewage. There is basically no residual sludge discharge. The sludge has high stability and does not need to be reused. Digestive treatment is carried out, so it can also be called a comprehensive sewage sludge treatment process. The unique structure of the entire device can form a unique hydraulic cycle and biological environment, and has multiple functions of simultaneous denitrification and degradation. It is suitable for small sewage projects with high water quality requirements and where it is not suitable to use separate sludge treatment. It can be used in small and dispersed units. It has unique advantages in domestic sewage treatment projects.
The process performance is stable and reliable, the effluent quality is excellent, and meets the national emission standards. It can be widely reused for landscape environment water use and greening.
The equipment is corrosion-resistant, lightweight, easy to install and debug, has a short construction period and long service life.
It occupies a small area and can be buried below the ground surface. The ground above the equipment can be used as greening or other land. There is no need to build new houses or heat insulation.
Due to the long hydraulic retention time, low organic matter concentration in sewage, and microorganisms in the endogenous respiration stage, part of the protoplasm is degraded and energy is released to maintain the growth of microorganisms. The sludge has good stability and no odor. The amount of sludge is small, only that of the conventional activated sludge method, and it only needs to be cleaned once every six months or a year.
Using a submersible air compressor, the operation is reliable and noiseless, and there is no need to set up a separate blower room.
The entire equipment processing system is equipped with a fully automatic electrical control system, which is safe and reliable in operation. Generally, it does not require special personnel to manage, and only needs to maintain and maintain the equipment in a timely manner.
It has a high degree of automation and can achieve biological denitrification. The operating time can be adjusted and set according to the local climate and surrounding environment conditions required for raw water quality treatment.
According to the amount of water, multiple sets of treatment measures can be connected in parallel, and the installation is flexible.
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