[1]颉亚玮,樊丞越,张奔,等.两种大型饮用水厂次氯酸钠发生器运行评价分析[J].中国给水排水,2022,38(15):1-6.
　XIEYa-wei,FANCheng-yue,ZHANGBen,et al.Comparative Analysis of Two Kinds of Sodium Hypochlorite Generators in Large Drinking Water Treatment Plants[J].China Water & Wastewater,2022,38(15):1-6.
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两种大型饮用水厂次氯酸钠发生器运行评价分析

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第15期 页码: 1-6 栏目: 出版日期: 2022-08-01
Title:
Comparative Analysis of Two Kinds of Sodium Hypochlorite Generators in Large Drinking Water Treatment Plants
作者:
颉亚玮1， 樊丞越1， 张奔1， 刘宏远1， 张刚2， 朱海涛2
（1.浙江工业大学 土木工程学院，浙江 杭州 310023；2.嘉兴市水务集团有限公司，浙江 嘉兴 314000）
Author(s):
XIE　Ya-wei1， FAN　Cheng-yue1， ZHANG　Ben1， LIU　Hong-yuan1， ZHANG　Gang2， ZHU　Hai-tao2
（1. College of Civil Engineering， Zhejiang University of Technology， Hangzhou 310023， China； 2. Jiaxing Water Investment Group Co. Ltd．， Jiaxing 314000， China）
关键词:
次氯酸钠发生器;  有效氯;  氯酸盐;  盐耗;  电耗;  运行成本
Keywords:
sodium hypochlorite generator;  active chlorine;  chlorate;  salt consumption;  power consumption;  operation cost
摘要:
次氯酸钠消毒工艺在饮用水厂已经得到了广泛应用，对某水厂3台有效氯产量为20 kg/h的次氯酸钠发生器在有效氯浓度、氯酸盐浓度、盐耗、电耗等方面进行了对比研究。结果表明，3台发生器（进口F1#和F2#，国产C1#）产出有效氯的平均浓度分别为0.81%、0.79%和0.85%，基本达到0.8%的设计有效氯浓度要求；产液中氯酸盐与有效氯的比值分别为4.8%、4.9%、1.2%，也均低于《人类消耗水处理用化学品——次氯酸钠》（BS EN 901—2013）中5.4%的要求，C1#副产物氯酸盐的含量仅为F1#和F2#的24%左右。C1#发生器在夏季、正常、冬季3种模式下的电耗均低于F1#和F2#，其中，在冬季模式下C1#采用电解槽换热方式代替压缩机加热，进一步降低了发生器的电耗。F1#、F2#、C1#的平均运行成本分别为6.8、6.7、5.6 元/kg，C1#由于低电耗的优势，运行成本低于F1#和F2#。同时，相比进口次氯酸钠发生器1年的保修年限，国产发生器的保修年限为5年，具有较强的竞争力。
Abstract:
The sodium hypochlorite disinfection process has been extensively applied in drinking water treatment plants. Three large-scale sodium hypochlorite generators with active chlorine production of 20 kg/h were compared in terms of active chlorine concentration, chlorate, salt consumption, and power consumption. The results showed that the average concentrations of active chlorine produced by three generators ( F1#, F2# and C1# ) were 0.81%, 0.79%, and 0.85%, respectively, which met the design concentration of about 0.8%. The ratios of chlorate to active chlorine in the effluent of the three generators ( F1#, F2# and C1# ) were 4.8%, 4.9% and 1.2%, respectively, meeting the requirements of less than 5.4% specified in Chemicals Used for Treatment of Water Intended for Human Consumption—Sodium Hypochlorite (BS EN 901-2013). The chlorate by-product concentration of C1# was only around 24% of that of F1# and F2#. The power consumption of C1# generator was lower than that of F1# and F2# under summer mode, normal mode, and winter mode. Among them, in winter mode, C1# adopted electrolytic cell heat transfer instead of compressor heating, further reducing the power consumption of the generator. The average operating cost of three generators ( F1#, F2# and C1# ) were 6.8 yuan/kg, 6.7 yuan/kg and 5.6 yuan/kg, and C1# was lower than F1# and F2# resulted from its lowest power consumption. In addition, compared to the 1-year warranty period of the imported sodium hypochlorite generators, the warranty period provided by the domestic generator was 5 years, which was highly competitive.
更新日期/Last Update: 2022-08-01