一种梯户式管道直饮水系统的中试效果分析  

Performance Analysis on Pilot-scale Direct Drinking Water System in Buildings

作　　者：李清华 侯英娜 费霞丽 付欢 LI Qing-hua;HOU Ying-na;FEI Xia-li;FU Huan(Xiamen Municipal Water Group Co.Ltd.,Xiamen 361001,China)

机构地区：[1]厦门市政水务集团有限公司,福建厦门361001

出　　处：《中国给水排水》2022年第17期34-38,共5页China Water & Wastewater

摘　　要：梯户式管道直饮水系统是对供水模式的一种优化,能够短期内改善老旧小区居民饮用水水质。以市政管网水为原水进行中试,探讨了3种二次消毒剂的消毒效果和直饮水系统对市政管网水水质的改善情况。结果表明,臭氧发生器每小时循环开启10 min时,消毒效果优良,甲醛和溴酸盐均无检出,优于次氯酸钠和二氧化氯的消毒效果。水质监测对比表明,直饮水系统出水的浊度、色度和细菌总数等指标明显优于市政管网水,饮用水的感官性状和生物安全性均得到提高。此外,直饮水系统安装运行增加的水费最高约为0.13元/L。Direct drinking water system in buildings is an optimization of the existing water supply system,which can improve the drinking water quality for residents in old residential communities in a short time.A pilot test was carried out to investigate the performances of three secondary disinfectants for disinfection of raw water from a municipal pipe network,and the effect of direct drinking water system on improvement of municipal pipe network water quality was discussed.When the ozone generator was operated for ten minutes every one hour,excellent disinfection performance was obtained,and formaldehyde and bromate were not detected,indicating that the disinfection performance was better than that of sodium hypochlorite and chlorine dioxide.The comparison of monitoring data showed that turbidity,chromaticity and total number of bacteria in the water from the direct drinking water system were significantly better than those from the municipal pipe network,and the sensory characteristics and biological safety of drinking water were improved.In addition,the operational cost was increased by approximately 0.13 yuan/L at the highest after the installation and operation of the direct drinking water system.

关 键 词：梯户式管道直饮水系统 市政管网水 臭氧消毒 

分 类 号：TU991[建筑科学—市政工程]