Sewage treatment equipment in highway service area

Highway service areas have become important supporting facilities to ensure the safety, smoothness, convenience, and speed of highways. The prevention and control of water pollution and ecological construction in highway service areas are increasingly valued by the transportation industry.

The sewage in highway service areas is generally composed of fecal sewage, catering washing water, car washing wastewater, and gas station cleaning wastewater. Due to the relatively small amount of sewage discharged from car washing and gas station cleaning, domestic sewage mainly consists of domestic sewage generated by resident staff and passing passengers in the service area. Highway service areas are generally far away from cities and cannot be directly integrated into the city's municipal sewage network. If sewage is discharged on-site without treatment, it will have adverse effects on the surrounding environment and even cause disputes, affecting the normal operation of the service area. Therefore, a separate decentralized sewage treatment system needs to be set up for treatment.

Underground sewage treatment equipment:

The company's buried sewage treatment equipment adopts internationally advanced biological treatment technology, which integrates the removal of BOD5, COD, and NH3-N. It has stable and reliable technical performance, good treatment effect, low investment, small land occupation, and convenient maintenance. Our company can also provide supporting reclaimed water reuse equipment according to customer requirements.

2、 Characteristics of sewage treatment equipment in highway service areas

1. Buried below the surface, the surface above the equipment can be used for greening or other purposes, without the need for building houses, heating, or insulation.

2. The secondary biological contact oxidation treatment process adopts push flow biological contact oxidation, which has a better treatment effect than fully mixed or two-stage series fully mixed biological contact oxidation tanks. And it has a smaller volume than activated sludge tanks, strong adaptability to water quality, good shock load resistance, stable effluent quality, and will not cause sludge expansion. A new type of elastic three-dimensional packing material is used in the pool, with a large specific surface area and easy biofilm formation and detachment by microorganisms. Under the same organic load conditions, it has a high removal rate of organic matter and can improve the solubility of oxygen in the air in water.

3. The biochemical tank adopts the biological contact oxidation method, which has a relatively low volume load of the filling material, and the microorganisms are in their own oxidation stage, resulting in low sludge production. It only takes more than three months (90 days) to discharge the sludge (using fecal trucks to suction or dehydrate into sludge cakes for external transportation).

4. The deodorization method of this buried domestic sewage treatment equipment not only uses conventional high-altitude exhaust, but also includes soil deodorization measures.

5. The entire equipment processing system is equipped with a fully automatic electrical control system and equipment fault alarm system, which operates safely and reliably. Generally, there is no need for dedicated personnel to manage it, and only timely maintenance and upkeep of the equipment is required.

Scope of application of sewage treatment equipment in highway service areas:

1. Hotels, restaurants, and sanatoriums;

2. Residential communities, villages, and towns;

3. Stations, airports, seaports, and ships;

4. Factories, mines, troops, tourist attractions, scenic spots;

5. Various industrial organic wastewater similar to domestic sewage.