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Blended Water Reverse Osmosis Systems - Advanced Membrane Separation

Scale & Corrosion are two problems associated with dissolved minerals (TDS) in water. These can be the most damaging & expensive problems with your equipment, impacting its life & performance.


Reverse Osmosis (RO) is a water treatment process that involves the use of osmotic pressure and a semi-permeable membrane to remove a broad range of contaminants from blended water.  

Water, containing dissolved solids (ions), suspended solids, bacteria and organic matter is forced, under pressure, against the membrane surface.  Pure water molecules pass through with relative ease, while >95% of impurities are rejected by the membrane.  Unlike 'filtration', which involves trapping and holding specific contaminants within a media, RO rejects virtually all contaminants and flushes them away to the drain.  Nothing is trapped or held by the membrane.  It is a separation process.

Different types of membranes are available with different rejecting characteristics.  Reverse osmosis membranes, which are also used to desalinate sea water, offer the finest degree of separation.  

In Foodservice applications, an important distinction of Reverse Osmosis is its ability to remove virtually all Total Dissolved Solids (TDS) from water.

TDS is the measure of a broad array contaminants, including calcium, magnesium, chlorides, sulfates, iron and nitrates (to name a few) that water came in contact with and dissolved on the way to your tap.

Two common and expensive water-related problems related to TDS are:

ScaleEnergy Wasted

Varying amounts of scale-forming compounds (primarily calcium and magnesium carbonates) are present in water supplies. These dissolved ‘hardness’ minerals form as hard, rock-like deposits in equipment.  Over time scale build-up impedes steam or ice production, reduces energy efficiency, increases maintenance requirements and eventually causes equipment shut-down requiring expensive service.

Corrosion

Corrosion is the deterioration of materials due to reactions within the environment. There are numerous physical and chemical variables that can influence corrosion.  Chloride, in water, can become particularly reactive at higher temperatures (140-212º F) and can penetrate the passive surface of stainless steel allowing a corrosive attack to occur.  When present, Chlorides can be problematic with steam equipment, coffee brewers and espresso machines.  Many equipment manufacturers have “minimum water quality standards” which include dissolved chloride levels.

To understand its use with Foodservice equipment, think of reverse osmosis as a “system” rather than a technology. Basic system components include:

Pre-Treatment – protect and maximize membrane life and performance

Membrane Separation – remove TDS and other contaminants

TDS Management – filtered blending or mineral modification

Storage – water must be stored to meet equipment usage requirements

Re-Pressurization – delivers equipment flow and pressure requirements

Post-Treatment – final filtration of product water

OptiPure “SYSTEMS” that utilize reverse osmosis are specially designed to meet the unique requirements of different types of equipment such as combi and steam ovens, espresso machines, and coffee and tea brewers.

Consider an OptiPure System for your application when:

OptiPure RO System Installation

  • Water problems related to high TDS, hardness or chloride levels are not able to be managed with “filtration” technologies.
  • Manufacturers’ minimum water quality standards must be achieved to meet warranty requirements.
  • TDS management is necessary to achieve beverage quality and consistency.
  • Consistent water quality standards are required at different geographic locations.

OptiPure has decades of experience designing and manufacturing systems that utilize reverse osmosis to meet the unique requirements of various food service applications.


NOTE:  It is important that the system be specifically designed to meet particular applications. An improperly designed and applied reverse osmosis system can cause operation problems and damage equipment.

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