Replacing 8.5-inch Diameter Membranes to Save Energy – The City of Vero Beach RO WTF
The City of Vero Beach and Reiss Engineering replaced 10-year old 8.5 inch diameter membranes in an existing 2 MGD reverse osmosis skid with more efficient modern elements in order […]
Oxford MBR Membrane Longevity: How Many More Years?
A portion of the London Ontario Oxford Pollution control plant was retrofited from conventional activated sludge to a membrane bioreactor (MBR) plant. Key operating and design factors for membrane life […]
Fast Forward to Compliance: Multipurpose Membranes
Woodstock Virginia wastewater treatment plant expanded operations using membrane bioreactors (MBR). O&M costs and construction issues are addressed.
Membrane Protection: Grinders, to Coarse, Fine, & Ultra Fine Screens Why? How Fine is Fine Enough? The Do’s & Don?ts
This presentation illustrates the benefits realized from coarse and fine screening for both conventional and membrane facilities. It outlines the pros and cons of screen types and models, and the […]
The Impact of pH on Inhibitor Form and Performance in Laboratory Evaluations and Field Applications
Scale inhibitor modeling is addressed and level of active speciation of the inhibitor. pH and ionic strength are major factors in scale inhibitor effectiveness and dosing requirements.
Remineralization: A Review of Current Technologies with an Outlook for the Future
Desal permeate and naturally soft water are low in pH and mineral content and buffer capacity. As a result, these waters are considered unstable, aggressive to metals, and can be […]
Surface water nanofiltration: comparison of the performances of two nanofiltration membranes with two antiscalants
This study compares the performance of two nanofiltration (NF) membranes and two antiscalants injected upstream of the NF system. The pilot unit is installed at the Choisy-le-Roi drinking water treatment […]
Performance Qualification of MF/UF Membranes by Adopting Standardized Systems and Operating Procedures
This paper presents a comparative performance evaluation of five different MF/UF hollow fiber membranes deployed as pre-treatment for RO systems in seawater desalination applications. Applying standard operating procedure, performance of […]
Is it Too Good to be True? How about the Risk, The Experience and the Cost?: A Review of New Developments in the Low- Pressure Membrane Industry
Polymer hollow fiber MF and UF manufacturers and OEMs are reviewed. System costs are reviewed. Benefits of proprietary versus interchangeable system designs.
Implementing an Integrated Membrane System For CRWC – Headingley WTP
Cartier Regional Water Headingly WTP in Canada makes potable water from a river surface water source using ultrafiltration (UF) and reverse osmosis (RO). This is an Integrated Membrane System (IMS). […]
