Residential sewage treatment equipment

Residential sewage treatment equipmentThe design is mainly aimed at the treatment of domestic sewage and similar industrial organic sewage. The main treatment method is to use the currently 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 20Omg/l and an outlet BOD of 20mg/l. It consists of six parts: 1. primary sedimentation tank; 2. Contact oxidation tank; 3 secondary sedimentation tanks; 4. Disinfection pool and disinfection device; 5 sludge tanks; 6 fan rooms and fans.

The following are discussed separately:

1. Primary sedimentation tank: The equipment's primary sedimentation tank is a vertical flow sedimentation tank, and the upward flow velocity of sewage in the sedimentation tank is 0.6-0.7 mm/s. The settled sludge is lifted to the sludge tank by air. Note: YHAO O.5-5m/h does not have a primary sedimentation tank

2. Contact oxidation tank: After initial sedimentation, the water flows automatically to the contact tank for biochemical treatment. The contact tank is divided into three stages, with a total residence time of more than 1 hour. The contact oxidation time of the reinforced equipment can reach 6 hours, and the filler is a novel trapezoidal filler. Easy to form conjunctiva and not clog. The specific surface area of the filler is 160m/m, and the gas water ratio of the contact tank is around 12:1.

3. Secondary sedimentation tank: The biochemical wastewater flows into the secondary sedimentation tank, which consists of two vertical flow sedimentation tanks operating in parallel. The upward flow velocity is 0.3-0.4 millimeters per second. The sludge is discharged by air lifting to the sludge tank.

4 Disinfection pool and disinfection device: If it is sewage, the disinfection pool can increase the residence time to 1-1.5 hours, using a solid chlorine contact dissolution disinfection method. The disinfection device can continuously change the dosage according to the size of the water output, achieving the goal of adding more water and more medicine, and adding less water and less medicine. Other disinfection devices can be separately prepared.

5. Sludge tank: All sludge from the primary and secondary sedimentation tanks is transported by air to the ZHENG-1 sludge tank for aerobic digestion. The clear liquid from the sludge tank flows back to the contact oxidation tank for further treatment. After digestion, there is very little residual sludge, usually cleaned once every 1-2 years. The cleaning method can be to use a suction truck to extend from the inspection hole of the sludge tank into the bottom of the sludge and carry out suction and transportation.

6. Fan room and fan: The equipment fan room is located above the disinfection pool, with double-layer sound insulation at the entrance. The air inlet has a muffler and fan filter, so there is no noise during operation. The fan adopts two Roots blowers, which can automatically alternate operation. The operating life of a single wind turbine is about 30000 hours.
Residential sewage treatment equipmentCombining the removal of BOD5, COD, and NH3-N, it has the advantages of stable and reliable technical performance, good treatment effect, low investment, small land occupation, and convenient maintenance. Our company can also provide supporting water use equipment according to customer requirements.
1. The complete set of equipment can be buried below the frozen layer or placed on the ground. 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. A new type of elastic three-dimensional packing is used in the treatment tank, which has a large specific surface area and is prone to 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 water from the air.
3. The deodorization method of the buried integrated domestic sewage treatment equipment adopts conventional high-altitude exhaust and is equipped with soil deodorization measures.
4. The entire equipment processing system is equipped with a fully automatic electrical control system, which operates safely and reliably. Generally, there is no need for dedicated personnel to manage it, only timely maintenance and maintenance of the equipment is required.
Scope of application:
1. Residential communities, villages, and towns;
2. Hotels, restaurants, and sanatoriums;
3. Stations, airports, seaports, and ships;
4. Factories, mines, tourist attractions, scenic spots;
5. Various industrial organic wastewater similar to domestic sewage.