Pretreatment for sand removal upstream of Reverse Osmosis (RO) membrane systems is a major inland brackish water challenge. Many RO water treatment plants (WTP's) need to efficiently remove sand produced by wells that can otherwise plug the membrane system, severely reduce membrane productivity and possibly cause permanent membrane system damage. ...

This paper discuss' wellfield sand issues and how they impacted a RO system operation. This paper also gives an overview of the progression of the wellfield solutions, starting with the addition of basket strainers, to well redevelopment, and eventually to the installation of automatic backwashing sand strainers. The overview includes a summary of ...