Method for recycling formalin
AssigneesTresco, Incorporated, Vision Medical, Inc.
InventorsLeonard Lee Hixon, Jr., Joe Edward Taylor, John Joseph Matthews Rees, Michael Robert Lafriniere
Life of this patent
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Abstract
A formalin fluid recycler has a combination triple pipe nozzle for introducing dirty fluid into the recycler and for expelling concentrate and permeate fluid therefrom. Dirty fluid is pumped through a strainer, filtration module and charcoal filter to purify and clarify the dirty fluid. The formalin fluid can be recirculated in the system via the nozzle or be directed to a clean receptacle. Dirty formalin fluid is further cleansed by Ozone and ultraviolet light. Percent concentration and pH level of clean recycled formalin fluid is adjusted outside of the main recycling loop. Cleaning and preservative solutions are circulated through the recycler when necessary.
Claims11
A method of recycling a fluid consisting essentially of formalin, comprising the steps of:
- pumping a particle-containing formalin fluid from a dirty tank through a first strainer or pre-filter thereby removing large particles;
- filtering the fluid through a filtration module to remove finer particles not strained by said strainer or pre-filter;
- and routing permeate resulting from said filtering step to one of the dirty tank, a clean tank and a charcoal filter.
Dependencies are inferred from the claim text.