HORIZONTAL-FLOW SAND FILTRATION POOL AND WATER TREATMENT PROCESS THEREOF

摘要

A horizontal-flow sand filtration pool and a water treatment process thereof. The horizontal-flow sand filtration pool includes a pool body, a raw water inlet assembly, a sand filtration bed, a filtered water outlet assembly, an aeration assembly, and a back washing assembly; the raw water inlet assembly includes a water inlet pipe and a water distribution device that supplies raw water to the sand filtration bed; the water inlet pipe is connected with the water distribution device, the water distribution device is provided in the sand filtration bed, and a plurality of water outlet channels are uniformly distributed on the vertical surface of the water distribution device; the filtered water outlet assembly includes a water collector and a water outlet pipe; the water outlet pipe is communicated with the water collector; the back washing assembly includes a back washing pipe and a drainage pipe.