Side-By-Side UF Membrane Comparison and Retrofit of a 3 MGD System
A retrofit was performed at a Northeast Alabama UF facility after 6 years of operation with PVDF UF replacing polysulfone UF. Improved operations were observed in more sustainable flux and […]
Submerged Membrane to Replace Media Filters to Increase Capacity 4X for a Small Community
An upgrade for a conventional municipal surface water treatment plant using a submerged UF was used to increase plant capacity by 4X with same sized footprint. Pretreatment includes alum or […]
Reducing The Operating Costs of Brackish Water Systems Through Seasonal Optimization
This paper specifically discusses the success of implementing seasonal pretreatment adjustments by experienced operators with primary feedwater sources originating from the Bull Run Watershed in the Pacific Northwest, USA. Through […]
Steep Learning Curve Balls: Operating a Two Decade Old Nanofiltration Plant Using a New and Open Minded Approach
The operations group of Clifton Water District Colorado reports on 20 years of operation of a NF plant with an upgrade to low pressure RO. Feed source is Colorado River […]
Ceramic microfiltration for treating secondary wastewater effluent: influence of pre-treatment on the operational performance
The use of ceramic MF was evaluated for a secondary wastewater effluent was done with no oxidant, chlorine and ozone as pretreatment and with in-line coagulation. Coagulation was required for […]
Water Quality Evaluation at Big Spring, Texas
A municipal water district in Texas is purifying municipal wastewater effluent as a raw water supply for drinking water purposes. The process is MF, RO and AOP which uses both […]
The Case for Removing Post-Disinfection from MBR Treatment
This paper shares data collected over five years from more than 10 MBR facilities in North America, Europe and Australia to offer a benchmark of the long term ability of […]
Source Water Control Strategies to Ensure Treatment Reliability at Orange County Water District’s Groundwater Replenishment System
Orange County Water District’s (OCWD) Advanced Water Purification Facility (AWPF) treats secondary municipal wastewater effluent using MF, RO, and ultraviolet (UV) and hydrogen peroxide in an Advance Oxidation Process (AOP). […]
An Investigation of Low Biofouling Copper-charged Membranes for Microbial and Algal Control
Research a procedure of charging membrane surfaces with copper (Cu?ý) to control biofouling. Characterize the the copper-charged membranes chemically, structerly and morphologically. Investigating copper leaching and biofilm formation. Experiments illustrated […]
Selecting Optimal Well Designs for Membrane Systems
Discussion in detail of various well-based intakes for membrane systems. Comparing the advantages, limitations, complexities and cost for various types of well intake options versus open water systems. Case histories […]
