ROBERT A MARKS
Engineering in Baton Rouge, LA
License number
Massachusetts 16685
Issued Date
Jul 13, 1961
Expiration Date
Jun 30, 2000
Type
Mechanical Engineer
Address
Address
Baton Rouge, LA 70816
Professional information
Process And Equipment For Electrochemical Dual Phase Concentration, Collection And Removal Of Ions
US Patent:
6241872, Jun 5, 2001
Filed:
Jul 27, 1999
Appl. No.:
9/361241
Inventors:
Robert E. Marks - Baton Rouge LA
Stephen D. Field - Baton Rouge LA
Mary Madden Field - Baton Rouge LA
Stephen D. Field - Baton Rouge LA
Mary Madden Field - Baton Rouge LA
Assignee:
Compliance Consultants, Inc. - Baton Rouge LA
International Classification:
C02F 146
US Classification:
205702
Abstract:
A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid removal from the aqueous media. The media, which may be aqueous, soils or wastes, is filtered and passed through a cation or anion exchange resin beds. Metals or anions are captured and held in the resin beds. Current is then applied through the resin beds using opposing electrodes of opposite polarity. In the metal removal units, heavy metals and other cations are concentrated around the negative electrode and lifted to a top of the electrode chamber using hydrogen gas lift. The concentrated solution of heavy metals and cations are removed from the chamber above the negative electrode and are circulated to provide additional time for growth and precipitation.
Equipment For Electochemical Collection Removal Of Ions
US Patent:
6074537, Jun 13, 2000
Filed:
Apr 29, 1997
Appl. No.:
8/848154
Inventors:
Robert E. Marks - Baton Rouge LA
Stephen D. Field - Baton Rouge LA
Mary Madden Field - Baton Rouge LA
Stephen D. Field - Baton Rouge LA
Mary Madden Field - Baton Rouge LA
Assignee:
Compliance Consultants, Inc. - Baton Rouge LA
International Classification:
C02F 1461
US Classification:
204263
Abstract:
A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid removal from the aqueous media. The media, which may be aqueous, soils or wastes, is filtered and passed through a cation or anion exchange resin beds. Metals or anions are captured and held in the resin beds. Current is then applied through the resin beds using opposing electrodes of opposite polarity. In the metal removal units, heavy metals and other cations are concentrated around the negative electrode and lifted to a top of the electrode chamber using hydrogen gas lift. The concentrated solution of heavy metals and cations are removed from the chamber above the negative electrode and are circulated to provide additional time for growth and precipitation. Once in a crystalline structure or precipitated form, the elemental metals and metal hydroxides are separated from the aqueous phase using a trap, which retains the crystallates and precipitates.
Robert Marks
Specialties:
English
Work:
Virginia College - Baton Rouge
Insitu Bio-Electrokinetic Remediation Of Contaminated Soils Containing Hazardous Mixed Wastes
US Patent:
5458747, Oct 17, 1995
Filed:
Jan 21, 1994
Appl. No.:
8/185119
Inventors:
Robert E. Marks - Baton Rouge LA
Yalcin B. Acar - Baton Rouge LA
Robert J. Gale - Baton Rouge LA
Yalcin B. Acar - Baton Rouge LA
Robert J. Gale - Baton Rouge LA
Assignee:
Electrokinetics, Inc. - Baton Rouge LA
International Classification:
B01D 6142
US Classification:
204130
Abstract:
The invention relates to insitu bio-electrokinetic remediation of contaminated soil containing hazardous mixed wastes as organic pollutants and hazardous heavy metals. Bio-remediation of the organic pollutants is followed by removal of the hazardous material. Cultured micro-organisms, nutrients and growth factors are added to clean soil adjacent to contaminated soil. Positive anodes and negative cathodes are placed in the microbial-loaded clean soil adjacent to the contaminated soil. The negative cathode is closest to the interface of the clean and contaminated soil. DC current is applied between the electrodes and water containing cultured microorganisms is pushed by the electrokinetic pumping effect into the contaminated site. The acid generated at the anode is not allowed to enter the contaminated soil. Cultured microorganisms are introduced into clean soil on the opposite side of the contaminated soil.