The main pollutants in the sewage of highway service areas are floating debris, colloids, dissolved organic matter, oil and various bacteria. The highway sewage treatment equipment first removes solid waste and grease through a grille. Further precipitation separation is used to separate suspended solids. Wastewater can remove large molecular organic compounds when passing through anaerobic tank packing. The supernatant after precipitation separation is treated with hydrolytic acidification bacteria in the hydrolysis acidification tank, which degrades the large molecular organic matter in the water into small molecular organic matter. In the following aeration tank, it is adsorbed, absorbed, and oxidized by aerobic bacteria into simple inorganic substances such as CO2, H2O, etc., achieving the goal of removing organic matter; At the same time, due to the metabolic process of biofilms, some of the aged membranes fall off and form suspended solids in water. After passing through the sedimentation tank, the particles undergo free precipitation. The treated water overflows into the disinfection tank and is disinfected by adding sodium hypochlorite, thereby achieving standard discharge of sewage treatment.

Technical characteristics of highway sewage treatment equipment:

Mature technology and reliable performance, capable of meeting the first-class discharge standards for effluent;

Based on specific water quality conditions and requirements, modular design and adjustment of relevant parameters are more targeted;

Select different types of biofilter units according to different process requirements;

Set up biofilm backwashing and automatic transfer system for residual sludge;

Automatically adjust energy-saving aeration mode according to changes in water load, green and low-carbon;

Set up flow adjustment slots or sections to enhance the equipment's ability to withstand load shocks;

Set up automatic reflux systems such as gas lift circulation and metering transfer;

Adopting a step-by-step inlet and outlet pipe bottom mode to ensure smooth inflow and outflow of sewage;

Set up a practical grid system to effectively control floating or sediment in sewage.