Harn R/O Systems Blog

Improve Your Existing Water Treatment Process with a Membrane System

Posted by Julie Nemeth-Harn on Mar 6, 2018 10:02:00 AM

Membrane filtration systems are helping water treatment providers simplify and automate their processes while significantly improving water quality. Replacing or augmenting conventional treatment with membrane processes helps avoid heavy use of chemical processes and methods and can provide a superior finished water quality.

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Topics: membrane filtration, membrane treatment system, membrane treatment, water treatment, membrane plants, water quality, water purification process, water treatment plant

How to Complete a Silt Density Index (SDI) Test and Why it's Important

Posted by Julie Nemeth-Harn on Feb 27, 2018 4:56:00 PM

It is important to check on the level of semi-colloidal suspended solids in the feedwater to RO systems. The level can be estimated (not measured absolutely) by the Silt Density Index or SDI test which measures the blocking rate of a 0.45 micron filter pad under controlled pressure conditions.

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Topics: water quality, ro calculations, silt density index

How Much Water on Earth is Drinkable?

Posted by Julie Nemeth-Harn on Jan 30, 2018 4:31:00 PM

Water is one of the most important commodities that supports life on earth but very few understand how hard it is to get clean, potable freshwater. Water, in all its forms, covers three quarters of the Earth's surface. The water levels on Earth remain relatively the same each year. Every day, water goes through a cycle that sees it flow from land, to the seas and then evaporates into the atmosphere through the processes of evaporation and precipitation.

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Topics: membrane filtration, membrane treatment system, reverse osmosis, membrane treatment, water treatment, clean drinking water, membrane plants, water recycling, water quality, water purification process, save water

8 Simple Steps for Performing a Successful Membrane Installation

Posted by Julie Nemeth-Harn on Jul 5, 2017 11:07:06 AM

Membrane Installation Components

Membranes are loaded from the feed end of the pressure vessel. To better understand the installation procedure, the following definitions are helpful:

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Topics: membrane treatment system, membrane treatment, water treatment, water quality