Secondary sedimentation tank

Zhengyuan Environmental Protection is a professional manufacturer of sedimentation tanks. Our secondary sedimentation tank can improve sedimentation efficiency by 50-60%. We can design inclined tube sedimentation tanks with different flow rates based on experimental data of the original wastewater. Generally, coagulants need to be added during use. We provide customized design, installation, and debugging one-stop services for you.

The price of the secondary sedimentation tank starts at 15000 yuan, and the specific price needs to be consulted.

Principle of secondary sedimentation tank process:

The mixed liquid entering the secondary sedimentation tank is a three-phase mixture of mud, water, and gas. The flow velocity in the inlet center pipe should not exceed 0.I-0.3m/s to facilitate gas and water separation and improve the separation efficiency of the clarification zone. The flow velocity in the clarification zone of the sedimentation tank is even lower (around 0.0004m/s), because the task of separating mud and water is more important.

Another characteristic of activated sludge in secondary sedimentation tanks is its light weight, which is easily carried away by the effluent and prone to secondary flow, resulting in a much smaller actual discharge cross-section than the designed discharge cross-section.

Therefore, when designing a secondary sedimentation tank, the maximum allowable horizontal flow velocity should be half that of the primary sedimentation tank. The overflow of the effluent from the tank should be buried within a certain distance at the other end of the tank; The radial flow secondary sedimentation tank can also improve the distance and sedimentation effect of the mixed liquid flowing in the tank by surrounding water inlet and outlet.

Application scope of secondary sedimentation tank:

1. Urban water supply and drainage purification: river water, reservoir water, groundwater;

2. Industrial water purification;

3. Urban sewage treatment;

4. The recovery of useful substances in industrial wastewater and waste residue, the promotion of the sedimentation of coal powder in the coal washing wastewater, and the recovery of starch in the starch manufacturing industry;

5. Various industrial wastewater treatment: printing and dyeing wastewater, leather wastewater, fluorine-containing wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing wastewater, mining wastewater, brewing wastewater, metallurgical wastewater, meat processing wastewater, sewage treatment;

6. Paper sizing, sugar refining, casting and shaping, fabric wrinkle prevention;

7. Catalyst carrier, pharmaceutical refining, cement rapid setting, cosmetic raw materials.

The above is the introduction of the secondary sedimentation tank. The flocculation effect is further improved and the energy consumption is low. The flocculation time only takes 8 minutes, and the minimum can reach 5 minutes. The overall form of the product is designed and processed according to the size requirements of the reaction tank. The raw materials for the secondary sedimentation tank of Zhengyuan Environmental Protection are made of stainless steel or modified PVC, which have good corrosion resistance, high strength, beautiful appearance, easy installation and fixation, and long equipment service life.