Method of decontaminating a cementitious surface

Details Method of decontaminating a cementitious surface Method of decontaminating a cementitious surface

1992-10-16

1995-05-09

Mai, Ngoclan T.

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

134 2, 435262, 4352625, 435264, 976DIG392, 588 3, G21F 900

Patent

active

054141966

ABSTRACT:
A cementitious surface contaminated with a radioactive substance is decontaminated by applying a micro-organism to the surface to degrade the surface. The residue which contains the radioactive substance is then removed by suction, scraping, brushing or abrasion blasting. The micro-organism might comprise an aerobic sulphur oxidising bacteria, or an anaerobic sulphate reducing bacteria, or a mixture thereof. Action of the micro-organism can be stopped as necessary by heating, or by depriving the micro-organism of nutrients.

REFERENCES:
patent: 4655794 (1987-04-01), Richardson et al.
patent: 4861519 (1989-08-01), Tusa et al.
patent: 4871673 (1989-10-01), Rehm et al.
patent: 5011708 (1991-04-01), Kelly et al.
patent: 5047152 (1991-09-01), Francis et al.
patent: 5152341 (1992-10-01), Kasevich
patent: 5264018 (1993-11-01), Koenigsberg et al.
Bors, J., et al., Sorption Studies of Radioiodine on Soils with Special References to Soil Microbial bio-mass, 1991, Radio Chim. Acta, 52-53 (Pt. 2), 317-25.
Wolf, M., et al., Microbial Degradation of Bitumen Matrix Used in Nuclear Waste Repositories, 1991, Naturwissenschaften, 78(9), 414-17.
Ait Abdellah, N., et al., Microbial Degradation of Bitumen Used for the Conditioning of Low and Medium Level Radioactive Waste, 1984, Radioact. Waste Manage., 13 (Terl., Eval., Shallow Land Burial Low Med. Radioact. Waste Forms), 163-81.

Affiliated with

Also associated with

Rating

Method of decontaminating a cementitious surface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of decontaminating a cementitious surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of decontaminating a cementitious surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1707349