AWWA ACE59978

This research focuses on testing innovative pretreatment techniques to make membrane filtration in small water systems possible. These two techniques are running the coagulant onto the membrane before running the raw water to coat the membrane with a coagulant slurry, and injecting the coagulant into the feed line so that it runs inline with the raw water across the membrane. These techniques are compared with the current method of pretreating the raw water with coagulant then running through a membrane processing unit. Includes 22 references, tables.