Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent
1989-05-26
1990-05-29
Sever, Frank
Liquid purification or separation
Recirculation
Serially connected distinct treating or storage units
2102572, B01D 6118
Patent
active
049293516
ABSTRACT:
An inexpensive portable ultra-filtration system for concentrating industrial waste fluids such as cutting coolant. The system is adapted for convenient use with standard storage containers. It is lightweight, portable, and reliable, and processes waste fluids in conformance with most local environmental regulations. Its low cost makes it ideal for small volume applications. The system operates by continuously recycling the waste fluid through a cartridge prefilter and then a carriage ultra-filter. It can process a fifty-five gallon drum of contaminated coolant to yield fifty gallons of clear permeate and only five gallons of concentrated contaminated mixture in about twenty-four hours. The clear permeate can be directly sewered in most locales. An inlet pipe may be used to keep the point of waste fluid intake above most of the heavy contaminants such as sludge, thereby lengthening the operating life of the filters. If necessary, post-process filters for the clear permeate can be conveniently installed in a frame which hangs on the side of a storage container.
REFERENCES:
patent: 4086164 (1978-04-01), Noda et al.
patent: 4636317 (1987-01-01), Lewis
patent: 4692251 (1987-09-01), Hilgren
Sanborn, Inc.
Sever Frank
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