钢铁总排废水混凝过程的动态监测

Dynamic Monitoring of Coagulation Process of Iron and Steel Total Discharged Wastewater

利用光散射颗粒分析仪对钢铁总排废水的混凝过程进行动态监测,分析了动态监测曲线,探讨了仪器监测值与沉后水余浊的关系。结果表明,动态监测曲线能直观地反映总排废水混凝过程中絮体逐渐聚集成长的变化过程;在PAM最优投加量范围内,仪器监测值随沉后水余浊的降低而增大,在实际生产中自动投药系统可根据设定的监测值自动控制PAM投加量。

Dynamic monitoring of coagulation process of iron and steel total discharged wastewater was carried out using PDA2000, the dynamic monitoring curves were analyzed, and the relationship between the monitoring value and residual turbidity was discussed. The results show that the curves can intuitively reflect the aggregation and growth of flocs in coagulation process of iron and steel total discharged wastewater. In the PAM optimal dosage range, the monitoring value is increased with decrease of residual turbidity, so the PAM dosage can be controlled automatically by the dosage control system according to the setting monitoring value.