This paper describesa multi-level and systematic approach to by the Dunedin FL RO plant to develop cleaning strategies for biofouled membranes that will lead to improved cleaning and decreased operational costs. It will also quantify the effects of improved protocol report on the policy implications of developed protocols in terms of cost suitabili...

This presenation provides a description of pilot scale testing and full-scale design of a zerio liquid discharge facility in Florida. Pilot testing included lime softening and ultrafiltration, followed by plate and tube system RO. Found that RO recovery above 50% was not sustainable. Full scale facility included softening plus UF, with softened wat...

This session will provide an overview of MF/UF systems in operation and will discuss troubleshooting of these membranes in several applications including water and wastewater treatment. Among these examples include applications of MF/UF technology for RO pretreatment, industrial wastewater treatment and reuse, domestic wastewater treatment, groundw...

Presents definition of reuse approaches, focuses in in MBR system types (sheet vs fiber), MBR operations, fouling and emerging MBR technologies...

The City of Dunedin owns and operates a Reverse Osmosis (RO) Water Treatment Plant (WTP) that produces high quality potable water for its consumers. The plant requires refurbishment and the City has decided to execute the rehabilitation via a progressive design-build paradigm. This paper will present some historical background on the plant, and dis...

This paper discusses results of an extensive pilot study conducted for City of Dunedin to evaluate pretreatment options for treating groundwater containing Fe and Mn with RO. Processes tested include several oxidants (Cl2, ClO2, O3, KMnO4 and combinations of some of them), 3 types of media (sand, greensand plus, pyrolusite), two UFs (ceramic and po...