Zhang Min, Cui Fu-yi, Liu Dong-mei, He Wen-jie, Han Hong-da
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
Huan Jing Ke Xue. 2009 Dec;30(12):3568-72.
The synergic removal effect on Cyclops was studied with 4 kinds of dosages of pre-oxidants such as chloramines, chlorine, O3 and potassium permanganate composite followed by different sets of clarification treatment process pilot systems. The removal mechanisms of Cyclops in different treatment units were analyzed. The experiments results show that the inactivation rate of chlorine (25%) is the highest compared with the chloramines (21%), potassium permanganate composite (8%) and O3 (9%) in the pre-oxidation stage, while the removal rate is changed after the filtration and the sequence is chloramines (90%) > chlorine (88%) > O3 (83%) > potassium permanganate composite (80%). Only chloramines can remove Cyclops by 100% of removal rate with the treatment process with the conventional active carbon unit. The 100% of removal effect doesn't depend on the highest inactivation rate,but the reasonable cooperation between the pre-oxidation and the clarification treatment process. The size of Cyclops and its life activity are the important influencing factors. The individual removal rate of filtration unit is the highest with no lower than 50%. The removal effect of air-flotation unit is influenced by the size of Cyclops and its life activity.
采用氯胺、氯、臭氧和高锰酸钾复合药剂4种预氧化剂不同投加量，结合不同系列的澄清处理工艺中试系统，研究了对剑水蚤的协同去除效果。分析了剑水蚤在不同处理单元的去除机制。实验结果表明，在预氧化阶段，氯的灭活率（25%）高于氯胺（21%）、高锰酸钾复合药剂（8%）和臭氧（9%），而经过过滤后去除率发生变化，顺序为氯胺（90%）＞氯（88%）＞臭氧（83%）＞高锰酸钾复合药剂（80%）。只有氯胺在采用常规活性炭单元的处理工艺中能达到100%的去除率。100%的去除效果并非取决于最高的灭活率，而是预氧化与澄清处理工艺之间的合理配合。剑水蚤的大小及其生命活性是重要影响因素。过滤单元的个体去除率最高，不低于50%。气浮单元的去除效果受剑水蚤大小及其生命活性的影响。
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