MEMBRANE TREATMENT FOR WATER PLANT RESIDUALS HANDLING AND WATER RECLAMATION

Increasingly stringent regulatory standards for turbidity and particulate removal are forcing water utilities to seek innovative solutions. The Interim Enhanced Surface Water Treatment Rule will lower turbidity limits for conventional surface water treatment plants. This could result in a need for more frequent filter backwashes and longer filter to waste cycles to enhance filter ripening. The additional wastewater generated will lead to an increased flow to traditional residuals handling processes. Pending regulations concerning the recycle of filter backwash water could also require upgrades to these conventional methods.