炭砂滤池反冲洗及初滤水浊度控制方式研究  

Study on Backwash Methods and Initial Filtered Water Turbidity Control of GAC-sand Filters

作　　者：冯硕[1] 张晓健[1] 陈超[1] 李永红[1] 米子龙[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《中国给水排水》2011年第1期52-54,57,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07423-003)

摘　　要：反冲洗是保证炭砂滤池正常运行的关键环节之一。借鉴工程上常用的反冲洗参数,考察了单独水反冲洗和气水反冲洗方式的优化措施对初滤水浊度的控制效果及其可行性。结果表明,在常规反冲洗结束后增加短时间的微膨胀反冲洗,可以有效降低初滤水浊度,使滤池省去初滤水的排放成为可能。另外,在保证滤池冲洗干净的前提下,综合考虑反冲洗的历时、耗水量及初滤水浊度等,提出了适宜的反冲洗方式,以期为实际水厂的运行和改造提供参考。Backwash is a key process to ensure the successful operation of GAC-sand filters Based on the backwash parameters used in engineering, the feasibility of water backwash, combined air and water backwash and several strategies to control the turbidity of initial filtered water were investiga- ted. The initial filtered water turbidity can be effectively reduced by subfluidization backwash in just few minutes, which means the possibility of omission of filter-to-waste. Under the condition that the filter is effectively cleaned, while with the backwash period, backwash water consumed and the initial filtered water turbidity all considered, proper backwash method is chosen, so as to offer reference to the operation and reconstruction of water treatment plants.

关 键 词：炭砂滤池 反冲洗 初滤水浊度 微膨胀反冲洗 

分 类 号：TU991.24[建筑科学—市政工程]