Abstract
The addition of acid to the feed water of a 3000m3/day MSF unit successfully prevented alkaline scale formation but caused problems due to the corrosion of mild steel flash stages, water boxes and interstage walls. The low velocity of the recirculating brine allowed the deposition of iron oxides in heat recovery condenser tubes, which had to be removed manually. This low velocity, together with other aspects of plant design, and costs, prevented the use of Belgard EV alone.The use of a combination of Belgard EV with less than the theoretical amount of acid* successfully prevented alkaline scale formation, reduced corrosion of mild steel and allowed more efficient plant operation.Plant operational data when using acid alone and Belgard EV/acid during two comparable one year periods is presented and compared to show the effects of the two types of treatment on plant operation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
