| 引用本文: | 姜旭,张岐伟,纪峰,崔崇威.寒冷地区高天然有机物水库水源水消毒工艺[J].哈尔滨工业大学学报,2019,51(8):97.DOI:10.11918/j.issn.0367-6234.201805160 |
| JIANG Xu,ZHANG Qiwei,JI Feng,CUI Chongwei.Disinfection process of water source of high natural organic matter reservoir in cold region[J].Journal of Harbin Institute of Technology,2019,51(8):97.DOI:10.11918/j.issn.0367-6234.201805160 |
|
| 摘要: |
| 为保障城市居民饮用水水质安全,以东北某寒冷地区低温、低浊、高色度、富含天然有机物磨盘山水库水源水为研究对象,分别采用不同消毒方式,如液氯、次氯酸钠和氯胺研究其在常规净水处理工艺中的消毒方法.结果表明:液氯和次氯酸钠消毒会导致三氯乙醛的生成；然而,采用氯胺消毒,当次氯酸钠和硫酸铵的投加比例为4∶1时（2 mg/L∶0.46 mg/L）,能够显著降低水中消毒副产物,特别是三氯乙醛的质量浓度,且消毒持续时间更长,保证了其对管网水的稳定消毒效果.氯胺消毒方式在减小饮用水消毒副产物方面明显优于常规液氯和次氯酸钠消毒,各项消毒指标均满足《生活饮用水卫生标准》（GB5749—2006）的要求,解决了管网水三氯乙醛超标的问题. |
| 关键词: 水库水源水 天然有机物 液氯消毒 氯胺消毒 消毒副产物 |
| DOI：10.11918/j.issn.0367-6234.201805160 |
| 分类号:X524 |
| 文献标识码:A |
| 基金项目:哈尔滨工业大学任南琪工作室,环境与生态学(HSCJ201704) |
|
| Disinfection process of water source of high natural organic matter reservoir in cold region |
|
JIANG Xu1,2,ZHANG Qiwei1,JI Feng2,CUI Chongwei1
|
|
(1.State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150090, China; 2.Harbin Water Supply Group Co., Ltd., Harbin 150001, China)
|
| Abstract: |
| To ensure the security of urban drinking water, a study was conducted by taking the water source of Mopanshan Reservoir as the research sample, which has low temperature, low turbidity, high chroma, and is rich in natural organic matter. In the study, different disinfectant methods such as liquid chlorine, sodium hypochlorite, and chloramine disinfection were carried out in conventional water treatment process. The study indicated that the disinfection of liquid chlorine and sodium hypochlorite resulted in the formation of trichloroacetaldehyde. However, for the chloramine disinfection method, when the weight ratio of sodium hypochlorite and ammonium sulfate reached 4∶1 (2 mg/L∶0.46 mg/L), the by-product of disinfection especially trichloroacetaldehyde decreased significantly. Moreover, the disinfection lasted longer, which provided more stable disinfection effect for pipe-network water. Chloramine disinfection method was superior to conventional liquid chlorine and sodium hypochlorite disinfection in the decrease of by-products produced in drinking water disinfection, and its indexes met the requirements of Drinking Water Health Standards (GB5749-2006), which solved the problem of overmuch trichloroacetaldehyde in pipe-network water. |
| Key words: reservoir water natural organic matter liquid chlorine disinfection chloramine disinfection disinfection by-products |
