Caustic Water Recovery System
  • System recovers up to 90% of caustic solution
  • Reclaimed caustic is clean for use in plant CIP systems
  • The concentrated solids (fat and protein) may be used as an animal feed supplement
  • Achieve real savings by reducing chemical usage, lowering BOD and sewer charges, recycling heat energy, and reducing water consumption
  • ROI can be less than one year
The System
CIP wash water from the plant is collected in a storage tank and intermittently transferred to a batch circulation tank. The caustic solution and dissolved solids are recirculated through a ceramic membrane module and returned to the batch tank. The clean caustic solution is pushed by pressure through the membrane module to an intermediate tank for standardization before being pumped back to the plant for future use. The by-product of this process is a concentrated solution of protein and fat which is neutralized and utilized as an animal feed ingredient.
How it Works
The membrane is a ceramic material that is permeable to low molecular weight molecules such as water, salt, caustic, and acid. Protein, fat and complex carbohydrates cannot pass through the membrane and are therefore retained as a concentrated solution. Ceramic membranes are capable of operating under extremely high pH and temperature conditions and have a life expectancy of up to 10 years.
For more information download four color brochure of PN-11467 Caustic Water Recovery System - includes color photo of caustic recovery system, process diagram, and test results of an installation. File size is 432 Kb. Best viewed with ADOBE Acrobat Reader 4.0.
Download Publication PN-12176 FAQ - Frequently asked questions about caustic recovery systems. Requires ADOBE Acrobat Reader.
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