The intermediate-scale aquifer test tank was designed and constructed to perform colloid deposition and release studies in a physically and geochemically heterogeneous porous medium. The tank has also been used to examine the colloid generation and strontium removal by a zeolite barrier wall. The tank width is 5 cm.
Flow is controlled by constant head reservoirs located at either end of the working section.
Samples are taken via syringe needles positioned in the center of the tank at 10 cm spaces.