我国城镇地表水厂多数是在七十年代至八十年代初发展起来的,限于当时的技术水平,净化工艺构造简单,基本上不用机械设备,如水力循环澄清池和重力式无阀滤池等水处理工艺在城镇地表水厂中的运用相 Most of the surface water plants in our country were developed from the 1970s to the early 1980s and were limited to the technical level at that time. The purification process was simple in construction and basically did not need mechanical equipment such as hydraulic circulation clarifier and gravity valveless filter Application of Water Treatment Process in Urban Surface Waterworks