单过硫酸氢钾复合粉的消毒性能研究
首发时间:2015-10-09
摘要:为研究单过硫酸氢钾复合粉的消毒性能,以长沙第二水厂砂滤工艺出水为试验水样,通过控制消毒剂浓度、温度和光照条件,考察了其对菌落总数和总大肠杆菌群去除效果。结果表明,在无光环境下,当T=5℃~15℃、消毒剂浓度为0.6mg/L或T=25℃~35℃、消毒剂浓度为0.5mg/L时,试验水样中菌落总数低于100CFU/mL,总大肠杆菌群完全去除;在有光环境下,当T=5℃~35℃时,只需0.5mg/L的消毒剂,就可到达相同消毒效果;在消毒剂对两种微生物去除率上,有光环境比无光环境高出大约10~25%。因此,相较于氯化消毒2~7mg/L的投加量,该消毒剂有良好的消毒效果,可用于本地区饮用水的消毒处理。
关键词: 单过硫酸氢钾复合粉 光照 温度 菌落总数 总大肠杆菌群 去除率
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Disinfection of Drinking Water Based on Compound Peroxymonosulphate Powder
Abstract:In order to study the disinfection performance of compound peroxymonosulphate powder , taking the second waterworks in Changsha grit chamber process water as test samples, has studied the removal rate of the total bacterial count and the coliform bacteria in the experimental water by controlling the concentration of disinfectant、temperature and light conditions.The results showed,in the dark environment,when the temperature were 5℃~15℃,and the concentration of disinfectant was 0.6 mg/L, or the temperature were 25℃~35℃, and the concentration of disinfectant was 0.5 mg/L, the total bacterial count less than 100 CFU/mL in the test sample,and the coliform bacteria were removed completely; In the light environment, it only needed 0.5mg/L of disinfectant to achive the same disinfection effect; The removal rate of the two kinds of microorganisms was 10~25% higher than the dark environment. Therefore, comparing with chlorine disinfection, compound peroxymonosulphate powder has a good disinfection effect, and can be used for the disinfection of drinking water treatment in this region.
Keywords: compound peroxymonosulphate powder light temperature total bacterial count coliform bacteria removal rate
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No.4656199109329514****
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