Tunnel Construction Sewage Treatment Equipment Tunnel construction sewage treatment mainly includes the following steps:
Solid-liquid separation: The suspended solids in the sewage are separated from the water by the solid-liquid separation equipment, and the separation equipment can use sedimentation tanks, grid pools, etc.
Sedimentation: After solid-liquid separation, the sewage is further sent to the sedimentation tank for sedimentation, where the horizontal flow rate is reduced to further settle the suspended solids.
Filtration: The filtration equipment can use filter cloth, filter cartridge, etc., and the filtered water quality is relatively good, and it can be directly discharged or recycled through subsequent treatment.
Chemical treatment: Harmful substances are removed from the wastewater mainly by adding chemicals, such as neutralization, mixed sedimentation and fine filtration.
In addition, tunnel construction sewage treatment also includes setting up sewage treatment facilities at the entrance and exit of the tunnel, such as oil separation and sedimentation flotation treatment; Isolation fences should be set up for the disposal of slag disposal sites to avoid water pollution caused by rain and surface water flow; Treatment of domestic sewage of construction personnel, etc.
In conclusion, tunnel construction wastewater treatment is a systematic project, which requires comprehensive consideration of multiple factors to ensure that the construction process does not have a negative impact on the surrounding environment and ecosystem. At the same time, for the long-term operation and maintenance of the tunnel, it is also necessary to consider the problem of drainage treatment to ensure the normal operation and safety of the tunnel.