What is a microsand sedimentation tank?

coagulative precipitation tank

What is a microsand sedimentation tank?

  1. A microsand sedimentation tank is an innovative water treatment device that achieves high-speed sedimentation by adding microsand as a flocculation carrier. Its surface load can be up to 10 times that of traditional processes, and it is widely used in drinking water purification, industrial wastewater treatment, and other fields.
  2. Technical Principles of Microsand Sedimentation Tanks

Microsand Carrier Flocculation: By adding quartz sand with a particle size of 0.1-0.3mm as flocculation nuclei, combined with coagulants (such as PAC) and flocculants (such as PAM), high-density flocs are formed.

Three-Stage Structure Design: Includes three functional areas: a coagulation tank (for adding chemicals), a flocculation tank (for mixing microsand), and a sedimentation tank (for separation using inclined tubes).

Intelligent Control System: Employs a PLC-controlled microsand recovery system, achieving a 98% sand particle recycling rate through a hydrocyclone separator.

  1. Application Areas of Microsand Sedimentation Tanks

Municipal Water Supply: Particularly suitable for treating low-temperature, low-turbidity water sources, with effluent turbidity reaching 1-2 NTU. Industrial wastewater: When treating dyeing/electroplating wastewater, the SS removal rate reaches over 95%, and the TP removal rate exceeds 80%. Stormwater management: Treatment capacity reaches 120 m³/(m²·h), used for emergency treatment of stormwater overflow pollution.

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