EP-toxicity test of saturated GT-73 resin and resin in grout.

摘要

The results of EP-toxicity tests on mercury saturated Duolite(reg sign) GT-73 cation exchange resin clarify options for the ultimate disposal of spent resin. Samples of GT-73 saturated with mercury passed the EP-toxicity test, indicating that fully spent resin may be classifed as ''solid''-not''hazardous''-waste and stored or disposed-of as such. Samples of GT-73 resin saturated with mercury and then incorporated into Portland Type 1 cement did not pass the EP-toxicity test and fall into the ''hazardous waste'' category. Samples of GT-73 resin less-than-saturated with mercury which were in corporated in Portland Type 1 cement passed the EP-toxicity test and may be classified as ''solid waste.'' Other commercially available materials are being investigated for incorporating fully spent GT-73 resin in a solid waste form.