Richard Paul Johansen
Engineers at Commodore Rd, Chappaqua, NY

License number
Colorado 17317
Issued Date
Aug 28, 1980
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
111 Commodore Rd, Chappaqua, NY 10514
LicenseFiles verified this license of Dec 9, 2016 at the Colorado - Department of Regulatory Agencies.

Professional information

Richard Johansen Photo 1

Process And Apparatus For Removal Of Solids From Liquids

US Patent:
4443341, Apr 17, 1984
Filed:
Feb 26, 1982
Appl. No.:
6/352976
Inventors:
Michael A. Miller - New Fairfield CT
Richard P. Johansen - Chappaqua NY
Assignee:
Linde Aktiengesellschaft - Wiesbaden
International Classification:
B01D 2310
US Classification:
210702
Abstract:
A filtration process and apparatus for the removal of solids from liquids is provided having a filter bed vertically disposed in a chamber which has a solids-containing liquid passed horizontally therethrough. The filter bed is regenerated after becoming loaded with solids. During filtering the liquid is divided into at least two partial streams, and each partial stream is conducted through a respective filter bed arranged in a chamber, which is comprised of reticulated particles of polyurethane. After the particles have been completely loaded with the solids, the liquid feed to and the liquid discharge from the respective chamber are interrupted. The solids adhereing to the particles are then transferred by agitation and/or gas treatment into a liquid volume remaining in the chamber, and the liquid volume is discharged together with the solids. The process is especially adaptable to be utilized in wastewater treatment, or for the removal of solids from scrubbing media.

Engineers licenses in Colorado