Underground sewage treatment equipment is lighter and more convenient than other equipment. This equipment has obvious effects on sewage and is also needed in winter. However, due to the cold winter and low temperatures, it will have a corresponding impact on the operation of the equipment, so the maintenance of the equipment in winter is very important.
       1. Check the valve pipelines of each sewage treatment to avoid blockage of the valve pipelines.
       2. Check whether the air filter of the air compressor is frozen to determine whether the air compressor is operating normally and whether there is any noise or heat.
       3. Check the transmission part of the slag scraper and the shape of the scraper, and determine whether it has hardened and broken under cold conditions to avoid affecting use.
       4. Always pay attention to the coagulant mixing storage tank to avoid freezing, and conduct small sample tests frequently.
       5. When the local buried sewage treatment equipment is shut down, the sewage inside should be drained to avoid freezing and blocking the equipment in winter.
       6. Check whether the inlet sewage pump and return pump of the equipment are frozen every day at work, including the lubrication and refueling of the water pump, the tightness of the packing, the sealing ratio of the bottom valve, and the filling of oil in the air compressor, etc.
       The underground sewage treatment equipment connects the sewage treatment links in series and unifies them into one device, and only needs to be connected to a small external control room. It can be said that the integrated design provides users with humanized operation management, which not only eliminates the need for staff management but also reduces management expenses.
       It not only saves the surface area for users, but also greatly reduces the risk of exposure, bringing added value to enterprises. The surface can be used for simple greening and equipment rooms with low load-bearing capacity.