PTA循环水运行的日常管理要点

Key points of daily management of PTA circulating water operation

为使化纤循环水正常运行,日常管理主要根据水质变化情况进行及时相应调整,控制钙硬度(以CaCO_(3)计)+总碱度在1100 mg/L左右;pH值一般控制在8.0~9.2之间,总磷控制在6.0~8.0 mg/L之间;Cl^(-)应控制在100 mg/L左右,细菌总数也可能高达10^(4)~10^(5)个/mL,系统的浓缩倍数为3.0倍。

In order to ensure the normal operation of chemical fiber circulating water,the daily management should be adjusted timely according to the changes of water quality,controlling calcium hardness(in terms of CaCO_(3))+total alkalinity around 1100 mg/L,pH value between 8.0~9.2,and total phosphorus between 6.0~8.0 mg/L.The Cl^(-)should be controlled at about 100 mg/L,and the total number of bacteria may be as high as 10^(4)×10^(5)/mL,system.