AWWA MTC61234

As submerged membranes are considered for use in more diverse and challenging waters, optimization of pretreatment can be the decisive factor in determining the success of the submerged membrane technology. Each application of submerged membranes is developed to meet particular finished water treatment goals. Accomplishing these goals may be dependent on the pretreatment selection for an individual water. Based on data from a group of pilot scale evaluations on a variety of surface water supplies, the potential pretreatment options are compared to the treatment goals for each water source. The resulting matrix of pretreatment and treatment goals forms the basis for decision making regarding the appropriate pretreatment for a given water. Includes tables.