The Fifth edition of Evolution focuses on “Maximizing Your Membrane Investment.” You’ll get helpful insight on choosing the right low pressure membrane technology for your application, procuring and evaluating suppliers and protecting your community’s long-term membrane investment.

As the only supplier, manufacturer and system integrator of pressure-driven, vacuum-driven (submerged) and membrane bioreactors, and with over 1,000 installations on six continents, we’ve tackled a wide variety of source water
challenges.

The report focuses on the "Five Simple Steps" when selecting a membrane supplier.  Be sure to use these five simple steps to ensure the best value for your membrane dollar and long term, trouble free performance.

Here's a sample of what you'll find inside: 

A “high flux” will decrease initial capital costs but will limit operating flexibility and increase hidden “soft” costs. This is because of reduced operating windows (in terms of available pressure differential) and unforeseen fouling.  How do you
ensure a maximum value in the long run?

Limit the flux to industry standard. For clean water, design flux should be no more than 60 gfd (102 LMH). Keep in mind regulated “flux limits” are maximum to assure pathogen removal and are not an intended design parameter. Regulators have not established flux criteria based on long-term use, but instead based on a three-week study for pathogens.

You'll also learn:

Frequent chemical usage is the first sign a membrane system is under-designed.
Here are some industry-established chemical usage guidelines:

• Cleaning (in-site cleaning) should take place on a 30-day interval. Chemicals used are dependent on feedwater quality.
•  Maintenance washes (termed by some as “mini-cleans” or “effective flow maintenance”) should be limited to one time per day for less than 30 minutes. Again, chemicals are dependent on feed water quality.
• Chemical backwashing at regular intervals should not be allowed for design, but can be used as a “tool” for operators down the road.

 Download the Report Now (PDF)

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