If you’re operating a reverse osmosis system on a surface water supply, you already know that colloidal and silt fouling are major contributors to loss in performance of membrane separation systems. While there are effective cleaners for these types of … Continue reading →
OK, you’ve tried cleaning with everything you can think of and your membranes still aren’t recovering. You’ve taken the system apart and there are no mechanical issues. You have no idea what went wrong, so you don’t know how or … Continue reading →
They’re inevitable – death, taxes, and bacteria! If you operate a water system, they’re going to show up sooner or later, and depending on how you manage them, they can either be a nuisance or a nightmare. For industries such … Continue reading →
OK, you now have the latest technology – electrodeionization (EDI), and your normalized operating data indicates that it needs to be cleaned. Exactly how do you do that? Well, since EDI modules contain both membranes and ion exchange resins, cleaning … Continue reading →
There are a number of granular filter configurations, including pressure systems, gravity systems, vertical and horizontal vessels, single, dual and multimedia filters. For most applications, turbidity can be reduced to sufficiently low levels by multimedia filters. Multimedia filters have a … Continue reading →
We’ve had a lot of inquiries lately about brine reclaim systems for water softening applications! In some parts of the country, it’s mandatory. In others, it just makes good sense. Salt costs vary with transportation costs, but are generally between … Continue reading →
For those of you who attended our training seminars, “Good to the Last Drop: The User’s Guide to Reverse Osmosis Systems”, this may be old information, but following are some practical suggestions for effective membrane cleaning from our friends at … Continue reading →
Short of having a crystal ball, what’s the best way of predicting how fast your reverse osmosis, nanofiltration, or UF membranes are going to foul? There are a lot of tests and terminology, but how does one correlate to another? … Continue reading →
We can’t count the number of times it’s happened – we get a call from a customer whose system is down and they need a Service Engineer ASAP. We juggle jobs to get one of our guys on site and … Continue reading →
While many of us are familiar with the use of ultraviolet light for disinfection of high purity water streams, this technology has become increasingly popular for other applications. Using sizing criteria such as flow rate, UV wavelength, water quality, UV … Continue reading →