论文部分内容阅读
针对低负荷运行条件下,鹏城水厂虹吸滤池滤料反冲洗不彻底的问题,提出增设反冲洗补水管道的新措施,通过在反冲过程中向清水渠内补水实现提高反冲洗强度的目标;并配合滤池常规大修,对虹吸滤池进行改造。运行结果表明,补水反冲措施可将滤池反冲洗强度由最低的5.5 L/(m2·s)提高至设计规范要求的15 L/(m2·s);过滤周期延长一倍;反冲洗水量节省约20%;滤池截污能力提高约35%,滤后水浊度降至0.2 NTU。此外,该措施投资、运行成本低,有效地提高了老旧虹吸滤池的经济技术指标。
Aiming at the problem that the backwashing of siphon filter media in Pengcheng waterworks is not complete under the condition of low load, a new measure of adding backwashing water pipelines is put forward. By increasing the backwashing intensity Goals; and with conventional filter overhaul, siphon filter to transform. The results show that the backwashing strength of filter can be increased from the lowest 5.5 L / (m2 · s) to 15 L / (m2 · s) Save about 20%; filter sewage interception capacity increased by about 35%, filtered water turbidity dropped to 0.2 NTU. In addition, the measures of investment, low operating costs, effectively raising the economic and technical indicators of the old siphon filter.