Carlsbad, CA SW pilot study to evaluate various pretreatment schemes....

This presentation compares conventional and membrane technologies for the pretreatment of Seawater Reverse Osmosis (SWRO) systems. The variability of open intake seawater feed sources creates a demand for superior RO pretreatment. UF/MF pretreatment consistently produces RO feed water of superior quality, regardless of the raw water quality. The b...

The basic concepts of reverse osmosis technology is presented. Topics covered include membrane materials and construction, RO element details and an overview of RO systems....

The performance of RO membranes wih a new thicker brine spacer that has biostatic agent is compared against conventional spacer technology. The unique geometry of the new spacer demonstrates improved performance in both lab and full scale systems....

This presentation discusses advancements in reverse osmosis (RO) spiral wound element design with emphasis on 16-inch RO elements. Differences between 16-inch RO elements and traditional 8-inch elements are discussed along with special handling requirements for 16-inch elements. An overview of the Sorek, Israel seawater RO facility is also provided...

Discusses RO/NF membrane chemistry and design of high sulfate rejection NF membranes. These NF membranes are designed specifically for offshore desalination in O&G production allowing operation at much lower pressures than conventional SWRO....

This presentation provides an overview of why pretreatment and post treatment are needed for RO and describes how to select them. It covers the advantages, including the smaller footprint, consistent water quality, reduced chemical cost; as well as disadvantages of utilizing UF as RO pretreatment. It also describes the critical parameters that sho...

This presentation briefly discusses Singapore?s Waste Water Reclamation and generation of ?NEWater? by utilizing Microfiltration and Reverse Osmosis. It also indicates that Singapore imports water from Malaysia....

In November 2008, the City of Oxnard, located sixty miles northwest of Los Angeles, commissioned its first, large scale, brackish water reverse osmosis (BWRO) desalination water treatment facility as part of its comprehensive regional water resources development program. The uniquely designed RO uses energy saving technologies in a hybrid configur...

Inverness CA has a potable water issue with high levels of color and DBP from a surface water source. NF was able to reduce the color and DBP at low feed pressures and low energy costs. The NF membrane used can be sanitized with chlorine....

Prolonged drought across the Southwest United States has caused water utilities to consider alternative supplies. Critical to developing these supplies is an increased reliance on proven technologies such as reverse osmosis (RO). Critical to this technology is the membrane element. While the industry is mature, advances in membrane design and co...

This presentation discusses the existing and potential implementation of membrane technology in Oil and Gas field applications. It mainly focuses on the upstream drilling water treatment and produced water treatement. Special membrane and element material properties that are desired to solve real field water treatment needs for drilling and recycli...

Though the use of membranes for reclaiming municipal wastewater is well understood thanks to over 30 years of experience, the reclamation of industrial wastewater is an ongoing challenge due to the variation and complexity of the incoming feed waters. For such waters, piloting is typically recommended. This paper will follow the process of piloting...