HE Jia-li,YUAN Yao-fen,ZHOU Pei-liang,et al.Construction and Operation of Automatic and Accurate Coagulant Dosing System in Waterworks[J].China Water & Wastewater,2021,37(18):139-143.
自来水厂混凝剂自动精准投加系统建设与运行
- Title:
- Construction and Operation of Automatic and Accurate Coagulant Dosing System in Waterworks
- Keywords:
- waterworks; coagulant; automatic dosing; turbidity
- 摘要:
- 收集W水厂近一年的原水浊度、待滤水浊度和混凝剂投加量数据，建立混凝剂投加量数学模型，编制PLC控制系统程序，设定待滤水浊度的目标值，通过PLC控制系统读取原水浊度数据，自动计算出混凝剂的投加量，指令混凝剂投加泵工作，将待滤水浊度作为效果反馈。通过建立自来水厂混凝剂自动精准投加系统，能更加准确地控制混凝剂的投加，稳定出水水质且减少人为主观判断失误，为水厂将要实施的优化运行提供了可能。
- Abstract:
- The data including the turbidity of the raw water, the turbidity of the water to be filtered, and the coagulant dosage are collected from W waterworks in the past year to establish a mathematical model of coagulant dosage and compile a PLC system program, which automatically calculates the coagulant dosage and instruct the coagulant dosage pump to work by setting the target turbidity of the water to be filtered and reading the raw water turbidity data through the PLC system, and taking the turbidity of water to be filtered as effect feedback. By establishing an automatic and accurate coagulant dosing system in the waterworks, the coagulant dosing can be controlled more accurately, the effluent quality can be stabilized, and subjective judgment errors can be reduced, which provides the possibility for the optimized operation of the waterworks to be implemented.
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