There are three system areas to be considered in the construction and design of the WFI system: the WFI purification unit, the distribution system, and the storage system for the water.

This paper deals with the treatment of arsenic_containing waste water in the purification section of sulfuric acid unit, and its process and mechanism are also introduced.

Therefore it needs to establish the appropriate natural gas purification treatment unit for removing water from natural gas and condensate while the natural gas usually contains water and NGL.