Gee Whiz! I was sure somebody would challenge me on the last blog about washing dishes at home. But, since there are no comments (or fire bombs) in my inbox, I guess everybody agrees that the most efficient way to wash dishes at home is the “old fashioned” way with a dish rag and dish drainer. …
Preceeding blogs have described two ways of reducing the ionic content of water for use in washing and rinsing applications. Although both reduce ionic content, the process commonly called “De-Ionization” uses a treated resin to capture ions while the “Reverse Osmosis” process uses a semi-permeable membrane. Choosing between the two in the design of a cleaning process …
Preceeding blogs have discussed de-ionized or “DI” water, its benefits and its uses at some length. Today’s blog will discuss “Reverse Osmosis” water otherwise known as “RO” water. RO water is like a second cousin of de-ionized water. In the de-ionization process, potentially ALL ions are removed resulting in water that can approach the ultimate limit for pure …
This blog explores some common mistakes made in the application of de-ionization hardware. Although a properly engineered and installed de-ionization system will prevent these potential mistakes at the start, post-installation modifications by those less knowledgeable about de-ionizing technology don’t always respect good design practices. Temperature Limits – In general, de-ionization systems are not intended to …
This blog includes hints on ways to improve the quality and reduce the cost of de-ionized water. Those who use DI water in their processes know that the cost of DI water can be a major contributor to the overall cost of a process. The proper design and maintenance of a DI water system is …
There are many ways to de-ionize water. Some are small and simple while others are large and complex. The method used is determined by the volume of de-ionized water required and the desired purity. This blog will explore some of the de-ionizing means used in facilities with typical needs for parts cleaning applications. Removal of …
Next to water filtration and “softening,” de-ionization is probably the next most common water treatment. Ions in water interfere with many cleaning processes and cause water spots on drying after rinsing. The common measure of the amount of ions in water is “resistivity.” The more “resistive” water is, the less ions it contains. Water from a municipal …
Some means of reducing water hardness as we’ve described in preceding blogs is an almost universal first step in making water pure enough for most cleaning applications. But water softening only addresses the removal of only a few of many contaminants that are commonly present in our water supplies. The remaining contaminants range from ions …
“Hard” water contains minerals, usually Calcium and Magnesium, that form scale and soap scum. In most cases, soft water is preferred to hard water in industrial cleaning. In some cases it can mean the difference between success and disaster. Since its been a while since we last talked about water, you may want to review a …
Preceding blogs on metrology have introduced some basic concepts which can serve as food for thought. Today, I would like to give you a couple of examples of the practical application of the concepts discussed so far in industrial cleaning applications. Monitoring Contaminant Removal – Everyone wants to know how long it takes for a …
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