[1]蒋旗军,徐维发,刘岳峰,等.常规工艺给水厂芽孢杆菌防控措施应用研究[J].中国给水排水,2023,39(9):116-121.
　JIANGQi-jun,XUWei-fa,LIUYue-feng,et al.Application of Bacillus Prevention and Control Measures in Drinking Water Plant with Conventional Treatment Process[J].China Water & Wastewater,2023,39(9):116-121.
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常规工艺给水厂芽孢杆菌防控措施应用研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第9期 页码: 116-121 栏目: 出版日期: 2023-05-01
Title:
Application of Bacillus Prevention and Control Measures in Drinking Water Plant with Conventional Treatment Process
作者:
蒋旗军， 徐维发， 刘岳峰， 黄远东， 范小燕， 陈洪霞， 郑贺宏
（深圳市深水宝安水务集团有限公司，广东 深圳 518000）
Author(s):
JIANG　Qi-jun， XU　Wei-fa， LIU　Yue-feng， HUANG　Yuan-dong， FAN　Xiao-yan， CHEN　Hong-xia， ZHENG　He-hong
（Shenshui Baoan Water Group Co. Ltd.， Shenzhen 518000， China）
关键词:
芽孢杆菌;  芽孢;  常规工艺;  给水厂;  风险防控;  定量化措施
Keywords:
Bacillus;  spore;  conventional treatment process;  drinking water plant;  risk prevention and control;  quantitative measure
摘要:
采用常规处理工艺的给水厂，以芽孢杆菌为代表的耐氯菌在原水、生产、输配全流程中多有检出，存在出厂水菌落总数超标等管理风险，对用户也存在健康风险，需通过针对性的强化措施实现风险防控。基于常规工艺水厂中芽孢杆菌及其芽孢的时空分布规律，通过量化风险预警、打破滤池富集、限制滤池内繁殖三大针对性策略，保证了全流程降浊效果，以实现工程项目中的有效风险防控。结合具体工程条件，防控措施包括调整滤池反冲洗周期、双水泵加大水冲强度、调整“气冲-气水合冲-水冲”时长；滤池前加氯1.0 mg/L以上，使出水余氯大于0.3 mg/L；优化碱铝投加，加强排泥，减少回收，必要时在滤池前增投碱铝，降低沉后、滤后及出厂水浊度，保证除浊效果不低于常态化运行状态。数据结果显示，系列策略可有效保障常规工艺给水厂中出厂水芽孢杆菌不检出，符合《生活饮用水卫生标准》（GB 5749—2022）限值要求。
Abstract:
In drinking water plants with conventional treatment process, chlorine-resistant bacteria represented by Bacillus are often detected in the whole process of raw water, purification, transmission and distribution. There are management risks such as the total number of bacterial colonies in the product water exceeding the standard, and there are also health risks to users. Therefore, drinking water plants with conventional treatment process need to achieve risk prevention and control through specific enhanced measures. Based on the temporal and spatial distribution of Bacillus and its spores in drinking water plants with conventional treatment process, this project ensured turbidity removing performance in the whole process by three specific strategies, namely quantifying risk early warning, avoiding bacterial enrichment in filter and limiting the growth of Bacillus in filter, so as to achieve effective risk prevention and control in engineering projects. According to the specific conditions of the project, the prevention and control measures included adjusting the backwashing cycle of the filter, increasing the intensity of water flushing with dual pumps and adjusting the duration of “air wash-air and water wash-water wash”. The dosage of chlorine was above 1.0 mg/L before the filter, and the residual chlorine in the effluent was greater than 0.3 mg/L. The dosage of basic aluminium chloride was optimized, the sludge discharge was strengthened, and the recycling was reduced. When necessary, basic aluminium chloride was added in front of the filter to reduce turbidity after sedimentation, filtration and purification to ensure that the turbidity removal performance was not lower than the normal operation state. The operational data showed that the series of strategies effectively guaranteed the non-detection of Bacillus in the product water from drinking water plants with conventional treatment process, and the water quality met the limit specified in the Standards for Drinking Water Quality (GB 5749-2022).

相似文献/References:

[1]林秀,张凤娥,刘亚清,等.芽孢杆菌降解黑臭河道底泥的实验研究[J].中国给水排水,2021,37(13):83.
　LIN Xiu,ZHANG Feng-e,LIU Ya-qing,et al.Degradation of Sediments by Bacillus in Black and Odorous River[J].China Water & Wastewater,2021,37(9):83.
[2]戴仲怡,谢益佳,张国强,等.以芽孢杆菌为优势菌的BBR技术用于市政污水处理[J].中国给水排水,2023,39(18):67.
　DAIZhong-yi,XIEYi-jia,ZHANGGuo-qiang,et al.Application of BBR Technology with Bacillus as Dominant Bacteria in Municipal Wastewater Treatment[J].China Water & Wastewater,2023,39(9):67.

更新日期/Last Update: 2023-05-01