Polymer‐Driven Nitrosamine Formation in Houston's Drinking Water.

Authors :: Wolde‐Kirkos, Abate T.
Joshi, Narendra
Thakur, Shubha
Source :: Journal: American Water Works Association; Jun2021, Vol. 113 Issue 5, p42-52, 11p, 1 Color Photograph, 3 Diagrams, 3 Charts, 2 Graphs
Publication Year :: 2021
Abstract: Key Takeaways: After finding nitrosamines in its water system, the City of Houston studied how polymer coagulants and different stages of water purification affect nitrosamine formation. Results showed that as polymer dose increased and as water backwash or recycled water was mixed in, nitrosamine levels increased. Utilities should remove nitrosamine precursors from source water and optimize polymer dosage to reduce nitrosamines in the purification plant and drinking water distribution system. [ABSTRACT FROM AUTHOR]