Zero Discharge Technology

Since 1991 Walla Walla Environmental has provided zero discharge consulting to the corrugated packaging industry.

The comprehensive on-site auditing includes:

  • Process water analysis to identify ‘offensive’ constituents
  • System design and installation
  • Innovative solutions to water issues
  • Crew training
Our Extensive Services Include:
Performing plant audits regarding specific chemical usage
Establishing a baseline for bacteria, yeast, and mold
Conducting crew training
Acting as liaison with the plant's starch manufacturer
Provide on-site crew training
Interpreting flexo wash-up and corrugated run-off test results
Making recommendations for the most effective method for successful reuse of flexo wash-up and corrugated run-off waters back into the starch adhesive
Developing a plan of attack with plant management
Providing schematics for plumbing changes

 

Water Saving Techniques

In order to be successful at obtaining a quality zero discharge process, you must do the numbers. You must produce less flexo wash up, corrugator run off, and boiler blow down water (if intended for reuse) than you can consume throughout your box plant. To determine this number, calculate how much wastewater the box plant currently generates on a daily or weekly basis. Then calculate how much wastewater can be consumed by the box plant in the secondary portion of the starch adhesive batch daily or weekly. Once you have these two numbers, simply subtract the amount of wastewater generated from the amount of wastewater that can be consumed. If the box plant is generating more than it can consume, then water-saving techniques need to be implemented.