SHENYu-dong,FENGLing-yu,CHENWei-xiong,et al.Application of Gravity Flow and Low Flux Ultrafiltration Based on IoT in Rural Water Supply[J].China Water & Wastewater,2023,39(24):111-114.
基于物联网的重力流、低通量超滤用于农村供水
- Title:
- Application of Gravity Flow and Low Flux Ultrafiltration Based on IoT in Rural Water Supply
- Keywords:
- ultrafiltration; rural water supply; Internet of Things; gravity flow; low flux; gravity backwashing; unattended operation
- 摘要:
- 介绍了基于物联网的重力流、低通量超滤工艺系统在广东省某村级水厂的应用情况。总结了工艺设计及物联网平台特点，分析了水厂的出水水质和运行成本，并对系统整体运行成效进行了评价。结果表明，采用重力流、低通量超滤工艺处理地表山溪水，能有效应对水源高浊度的冲击，出厂水水质可稳定达到《生活饮用水卫生标准》（GB 5749—2022），出水浊度<0.1 NTU，出水微生物指标远优于标准要求；物联网监管平台的运用可实现水厂的无人值守和远程运维，提高了运维水平；水厂长期运行效果稳定，膜污染速率较低，化学清洗周期可延长到3~5个月，降低了清洗频率和维护成本；采用无外加动力工艺设计，大幅降低了能耗，水厂的直接运行成本仅为0.058元/m3。基于物联网的重力流、低通量超滤工艺系统可以有效保障水质安全，并实现净水系统的简化和优化，易于管理维护，对山地农村供水具有重要意义。
- Abstract:
- The application of a village-level waterworks in Guangdong Province using gravity flow and low flux ultrafiltration process system based on Internet of Things (IoT) is introduced. The characteristics of process design and IoT platform are summarized, the effluent quality and operating cost of the waterworks are analyzed, and the overall operation effect of the system is evaluated. The results show that gravity flow and low flux ultrafiltration process could effectively cope with the high turbidity in water source when treating surface mountain stream water, and the effluent quality could meet the Standards for Drinking Water Quality (GB 5749-2022) steadily. The effluent turbidity is less than 0.1 NTU, and microbial indicators of the effluent are far superior to the standard requirements. The application of the IoT supervision platform could realize unattended operation and remote control of the waterworks, which improve the level of operation and maintenance. The long?term operation of the waterworks is steady, membrane fouling rate is relatively low, and the chemical cleaning cycle could be extended to 3-5 months, which reduce the cleaning frequency and maintenance costs. The process design with no external power greatly reduces the energy consumption, and the direct operating cost of the waterworks is only 0.058 yuan/m3. The gravity flow and low flux ultrafiltration process system based on IoT can effectively ensure water quality safety, and realize the simplification and optimization of water purification system for easy operation and maintenance, which is of great significance to the water supply in mountainous rural areas.
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