Atlantic Richfield Hanford Company semiannual report, BB process development, May 1, 1974 through October 31, 1974 Page: 45 of 74
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ARH-ST-l18 B
AM-9R (American Cyanamid Company) gel interspersed in soil
as a second seal of a high-level waste tank. In-field well
grouting tests demonstrated that waste tanks within 6' of
the wells could be subjected to pressures about 10 psig.
Initial laboratory well-grouting tests demonstrated that an
asphaltic or asphaltic-cement grout may be superior to a
cement grout.
Progress During Report Period
Vacuum cleaner prototype tests were deferred to
calendar year 1975. A design of a water spray system for
the prototype was completed and necessary equipment procured.
Initial work began on testing sock filter efficiency.
A 16 cubic yard vacuum system was demonstrated on
the BC Crib area by Power Master of Portland, Oregon.
Cleanup capacity for a simulated sparsely contaminated zone
was estimated at four to eight acres per day, or about the
capacity of the prototype unit (which has a 6 yd3 capacity).
Four 4" hoses were operated from the Power Master unit, as
compared with two from the prototype.
In situ soil affixing and well-grouting techniques
were simulated in the laboratory. 'In the soil-affixing
studies various mixtures of a 65% asphaltic emulsion and
water were used with soil and extruded under pressure.
Cement, cement-asphalt, and asphaltic emulsions were used as
well-grouting agents. Laboratory studies also included
treatment of high-level waste terminal liquor with clays,
followed by addition of asphaltic emulsion to reduce leach
potential.
Additional pond cleanup methods were investigated
while pond use continued.' Scope flowsheets were devised and
discussions were held with several- equipment vendors. A40
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Fox, R.D. (ed.). Atlantic Richfield Hanford Company semiannual report, BB process development, May 1, 1974 through October 31, 1974, report, January 1, 1975; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1025272/m1/45/: accessed May 7, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.