The concentrated brine of a coal-to-olefin project in Inner Mongolia has high hardness and is easy to scale up pipelines,pool walls and equipment during operation,which has a huge impact on the stable operation of zero discharge wastewater.In order to alleviate the treatment pressure of concentrated brine and ensure the discharge of concentrated brine zero discharge project according to environmental protection standards,this paper summarizes the experience in daily production and operation.The mutual adjustment of pH value and alkalinity,that is,the addition of liquid alkali and sodium carbonate,effectively removes the hardness of the concentrated brine,and ensures the long cycle,high load,environmental protection and safe operation of the concentrated brine zero discharge project.
关键词
浓盐水/硬度高/结垢/除硬/环保治理/化工企业
Key words
concentrated salt water/high hardness/scale formation/remove the hard/environmental protection management/chemical enterprise
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