Advanced wastewater treatment technology for sewage treatment and upgrading and reconstruction
A sewage treatment and advanced treatment technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of increasing process operation costs, failing to meet effluent indicators, and poor phosphorus removal effect Stability and other issues
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[0026] Such as figure 1 As shown, the present invention upgrades the advanced treatment process of sewage treatment, which is based on the original process: water inlet → coarse grid → fine grid → grit chamber (primary sedimentation tank) → biochemical reaction tank → secondary sedimentation tank → Disinfection tank → Based on the effluent, a combined process of a high-efficiency sedimentation tank + vertical fiber filter cloth filter is added between the secondary sedimentation tank and the disinfection tank of the original process.
[0027] The sewage treatment scale of a sewage treatment plant is 40,000 tons / day, the coefficient of variation is 1.2, the maximum design treatment capacity is 48,000 tons / day, and the effluent quality requirements meet the first-class A standard.
[0028] The original design of the project selected a high-efficiency sedimentation tank as the treatment process after the secondary sedimentation tank effluent.
[0029] Design water quality: COD≤...
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