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Multi-stage counter current rinsing
Description
Use more than one rinse tank
Reuse the used water from the cleaner tanks to refresh the prior, ‘dirtier’ rinse tank
reuse the used water from the first rinse tank to refresh the process tank
Advantages / Limitations
- Increased cleanliness of product, because the final rinse tank can be kept much cleaner
- Reduces the quantity of disposed rinse water
- by increasing the number of tanks in the process line, the process time increases, therefore decreasing the number of products that can be produced during any given time span
- Increase in occupied floor space because more tanks must be present
- Increased labor
- Calculate your Potential Savings Using an Excel Worksheet
Implementation Process
- Investigate required tanks / determine cost-effectiveness
- Reconfigure floor layout so that the product flow is optimized
- Install tanks
- Possibly automate the counter-flow rinsing
- Develop a new Standard Operating Procedure
- Train and monitor employees – give incentives for superior performance
Resources
- Cushnie, George C. Jr. Pollution Prevention and Control Technology for Plating Operations. National Center for Manufacturing Sciences, Ann Arbor, MI, 1994.
Vendors
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