Harn R/O Systems Blog

The Impact That a Hurricane Can Leave on Your Water Treatment Plant

Posted by Julie Nemeth-Harn on Jan 10, 2019 11:43:18 AM

Three major hurricanes have already hit the United States this year. Being prepared for a hurricane has never been more important, especially for those who run and manage water treatment facilities. Water treatment is essential for removing constituents that can be unpalatable and lead to illnesses and other serious conditions. Houston experienced an outbreak of E. Coli due to water contamination from the impact of hurricane Harvey, which knocked out at least 40 water treatment facilities in the area. Water is essential for our survival so it is of utmost importance that water treatment facilities are prepared to handle and respond to natural disasters, like a hurricane.water

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Topics: water treatment, membrane treatment, membrane plants, weather challenges, water treatment plant

Pretreatment: The Last Line of Defense for Your R/O Membranes

Posted by Julie Nemeth-Harn on Apr 10, 2018 11:53:00 AM

Pretreatment Equipment - Theory of Operation

Some raw feed waters contain suspended particulate material. This material is commonly sand, iron oxides, clay or elemental sulfur.

Introduction of such materials into the membrane system can cause the development of excessive system differential pressure (dP), or even complete blockage of the brine channels with the resultant reduction of permeate flow. It can also cause physical damage to the membranes themselves. This usually results in a decrease of permeate quality and reduction of membrane life. Cartridge filtration is normally a simple and cost-effective way to reduce the amount of particulate matter reaching the membrane surface.

Interested in a Membrane Filtration Pilot Package?

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Topics: ro calculations, water quality, membrane treatment, water treatment, membrane filtration, membrane treatment system, membrane plants

How to Calculate Percent Recovery and What Affects it in a Membrane Treatment System?

Posted by Julie Nemeth-Harn on Apr 3, 2018 1:10:00 PM

RECOVERY RATE

Recovery is the amount of water permeated per unit time - usually in gallons per minute (gpm) and expressed as a percentage of the raw water feed flow rate. The design recovery is calculated as follows:

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Topics: membrane treatment, membrane treatment system, water treatment, ro calculations, membrane filtration, water quality, membrane plants

Membrane Water Treatment: A Simpler and More Cost- Effective Process Than You May Think

Posted by Julie Nemeth-Harn on Mar 27, 2018 11:44:00 AM


Membrane filtration can be explained as a method of allowing certain materials to permeate a surface while blocking others. For water, this means allowing clean water to flow through the membrane while eliminating sediments and other materials or pathogens. Membrane filtration is a multiple-step process which is considered to be one of the most cost-effective water treatments available.

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Topics: reverse osmosis, membrane treatment, water treatment, membrane treatment system, membrane filtration, membrane plants, save money, water treatment plant

Use Variable Frequency Drives to Save Energy in Membrane Plants

Posted by Julie Nemeth-Harn on Mar 20, 2018 1:35:00 PM


Variable frequency drives (VFD) are becoming the popular choice for many industrial processes that need to make use of motors with changing speeds. In membrane plants, these motors are used to feed the pressure and flow of the water as it moves through the various areas of the treatment cycle.

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Topics: water treatment, membrane plants, vfd, membrane treatment system, membrane treatment, membrane filtration, water treatment plant, water purification process, save money

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