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通过对水厂各处理工艺单元、供水管网及余氯静态衰减试验中BDOC浓度、余氯及细菌总数等指标的变化分析,提出BDOC浓度在整个供水系统中的变化分为8个阶段,依次为氧化增长期Ⅰ、工艺去除期、氧化增长期Ⅱ、氧化降低期Ⅰ、氧化降低期Ⅱ、生物降解期Ⅰ、生物降解期Ⅱ和生物增长期,分析了各阶段的变化规律和原因,同时指出在整个供水系统中BDOC浓度会出现三个高峰期,分别位于预加氯区、出厂水区和滞水区。
Based on the analysis of changes of BDOC concentration, residual chlorine and total bacteria in static decay test of process units, water supply network and residual chlorine in water treatment plant, the change of BDOC concentration in the whole water supply system is proposed and divided into 8 stages For the oxidation of growth Ⅰ, the process of removal, oxidation growth Ⅱ, oxidation reduction Ⅰ, oxidation reduction Ⅱ, biodegradation Ⅰ, biodegradation Ⅱ and biological growth period, the analysis of the various stages of the changes and causes, at the same time Pointed out that in the entire water supply system there will be three peak BDOC concentration, respectively, in the pre-chlorination area, the factory water and stagnant water.