The design of buried domestic Wastewater equipment is mainly aimed at the treatment of domestic Wastewater and similar industrial organic Wastewater. The main treatment method is to use a relatively mature biochemical treatment technology - contact oxidation method. The water quality parameters are designed according to the general domestic water quality, with an inlet bod of 200 mg/l and an outlet bod of 20mg/l. It consists of six parts: primary sedimentation tank, contact oxidation tank, secondary sedimentation tank, disinfection tank, disinfection device, sludge tank, fan room, and fan.
1、 Advantages of buried Wastewater treatment equipment:
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. Microorganisms are in their own oxidation stage, resulting in low sludge production and only requiring sludge discharge once every three months or more.
4. The deodorization method of this buried domestic Wastewater 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.
2、 Disadvantages of buried Wastewater treatment equipment:
1. Not conducive to maintenance, it is inconvenient to repair and replace equipment after it malfunctions. This is usually the biggest concern for homeowners.
2. Adaptability to the environment, anti freezing in winter and flood prevention in summer. The north needs to be buried deeper and insulated.
The suitable conditions for buried Wastewater treatment equipment include small water volume, low pollutant concentration, uncomplicated composition, limited site, and consideration of surrounding environmental beautification factors. Usually, it is recommended to use buried Wastewater treatment equipment systems for the above situations.
3、 Application scope of buried Wastewater treatment equipment
1. Hotels, restaurants, sanatoriums, hospitals.
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 Wastewater.
