D.4.2 Column Preparation Procedure

5-gal glass bottle

Support table for columns

Detergent

Deoxygenated, distilled-deionized (DDI) water conforming to ASTM

Type II (ASTM D1193-99) (ASTM 1999).

D.4.2 Column Preparation Procedure

a. Assemble the Fluid Metering Pump and Dial Indicator Kit according to

manufacturer's instructions.

b. Clean the column parts with a liquid, nonionic, metal-free, detergent

solution, rinse thoroughly with DDI water, and let dry.

c. Screw the nuts onto the bottom of the threaded rods and insert the rods

through the column base plate. Place the base plate in the 3-in.-diam

hole on the table.

d. Using -in. H -in. compression fittings, attach a 2-in. piece of -in.

stainless steel tubing to the inlet of the base plate. (Note: Use -in. H

-in. compression fittings to make all stainless steel/ teflon tubing/ plug

valve/ fluid pump connections.)

e. Connect a stainless steel plug valve to the 2-in. piece of stainless steel

tubing. Use a suitable length of 1/4-in. OD teflon tubing to connect the

plug valve to the outlet side of the Fluid Metering Pump.

f. Attach a suitable length of 1/4-in. OD, teflon tubing to the inlet side of

the pump, and insert the opposite end of this tubing in a 5-gal glass

bottle filled with deaired, DDI water. Securely cover the mouth of the

bottle with parafilm.

g. Open the plug valve, and turn on the fluid pump. When the water level

reaches the grooves inside the base plate, turn off the pump.

h. Place an O-ring inside the base plate making sure the O-ring is properly

seated to avoid water leakage. Place a distribution disk in the base plate.

Place a glass fiber filter on top of the distribution disk. Place the

sediment chamber in the base plate, properly aligning it on top of the

O-ring.

i. On a mechanical mixer, carefully mix the sediment. Mixing under an

oxygen-free atmosphere is recommended.

D15

Appendix D Leachate Testing Procedures