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3 Ways Reverse Osmosis Helps Automotive Manufacturing

by Leanne Hersey

drops-791543_1920Auto manufacturers need large volumes of purified water for many applications including metal finishing, boiler feed, paint and coatings shops and cooling tower makeup. Some of these processes also require water treatment after the fact to remove certain impurities so that water can either be reused or responsibly discharged. Within the automotive manufacturing industry, reverse osmosis is a widely applied water treatment technology as it can accommodate treatment process water and wastewater.  

Reverse osmosis is a popular choice for water treatment in automotive manufacturing. Here are 3 ways reverse osmosis helps automotive manufacturing:

Consistent Water Quality

By installing a reverse osmosis system, auto manufacturers can count on the same, consistent permeate day in and day out. If you install a Closed Circuit Reverse Osmosis (CCRO) system   you can even feed the system variable feed water and the system will automatically adapt while delivering the same quality permeate required.

High Recovery

Depending on initial water chemistry of the feed water, an automotive manufacturer can generally expect between 75% and 95% recovery. Adding pretreatment can help to increase this recovery and choosing a reverse osmosis system provider that can guarantee recovery is also very important. If you get a quote that is lower than 90% recovery, you may want to look into alternative reverse osmosis processes (such as CCRO) to see if you can save any additional water. Generally traditional forms of reverse osmosis struggle with higher recovery rates and require a lot of pretreatment to match recovery rates of newer forms of reverse osmosis such as CCRO.

Low Operating Cost

Unlike other water treatment processes that require costly maintenance (think regeneration of Ion Exchange), reverse osmosis generally requires a Clean-In-Place treatment every few months. Of course, the frequency will always does depend on the feed water chemistry, so when reviewing proposals for a new reverse osmosis system or a replacement reverse osmosis system, it’s important to ask the provider about fouling and scaling potential. Certain reverse osmosis processes actually resist fouling and scaling more than others, which can lengthen time in between cleanings savings costs and down time.


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