The City of Thornton transistioned from ferric chloride to aluminum chlorohydrate coagulant in 2019 and has seen specific flux/temperature corrected permeability (TCP) values return to what was observed after 2-4 years of use with ferric chloride in membranes in their 7th to 9th year of use. The City continues to optimize coagulant dose for TOC removal, aluminum residual, clarifier, and membrane performance. The City has piloted specialty membrane cleaner and performed a clean on a full scale train to evaluate whether membrane performance and life can be extended further.
This presentation is available to AMTA Members only.
Speaker
- Jonathan Campos
Company
- City of Thornton
Event
- AMTA/SWMOA Technology Transfer Workshop, Loveland
Session
- AMTA/SWMOA Technology Transfer Workshop
Date
- 10/26/22
Media
Keywords
- Ferric Chloride and Aluminum Chlorohydrate (ACH) coagulant fouling, Cleaning strategies, Submerged membranes
Reference
- 9707-DP2967