Eliminating sulfuric acid injection in the NF feed at the City of Palm Coast site improved cartridge filter run times and led to a significant reduction in chemical consumption. The total annual savings in operation costs were estimated to be approximately $145,000. A laboratory analysis performed for this study indicated that the foulant matrix consisted of sulfur/metallic sulfides and organics. While, pH adjustment can reduce the membrane scaling potential, it can also lead to aggravated biofouling or inorganic fouling. As a result, groundwaters containing hydrogen sulfide, natural organic matter, and high levels of hardness compound their operational issues by using sulfuric acid pretreatment.
This presentation is available to AMTA Members only.
- Pranay Mane
- AMTA/AWWA Membrane Technology Conference, Orlando, FL
- AMTA/AWWA Membrane Technology Conference
- City of Palm Coast (COPC), Florida, Cartridge Filters, Sand Entrainment