Environmental Engineering Reference
In-Depth Information
Batch test for perchlorate removal (PC-03)
250
Perchlorate (ppb)
200
150
100
50
0
Influent
MMT
5011-H
MMT
5012-H
MMT
5013-H
MMT
5014
MMT
6001-H
MMT
6002-H
MMT
6003-H
Type of media
FIGURE 32.1
Batch test result for surfactant modiied forous ceramic media at 200 ppb.
Batch test for perchlorate removal with 4 ppm concentration
4500
4000
3500
(1 mg/g)
3000
2500
2000
1500
1000
(3.2 mg/g)
(3.2 mg/g)
(3.4 mg/g)
500
(3.8 mg/g)
(3.9 mg/g)
0
Initial
conc
MMT
5011-H
MMT
5012-H
MMT
5013-H
MMT
6001-H
MMT
6002-H
MMT
6004-H
Media type
FIGURE 32.2
Batch test results for surfactant modiied forous ceramic media done at 4000 ppb.
and perchlorate continued to be removed for 22 days of testing. The capacity of the media
used in the column test was calculated to be 3.3 mg/g, which is slightly lower than that esti-
mated by the batch test (3.9 mg/g). This showed that at an empty bed contact time (EBCT) of
60 min, the media does saturate and has a reasonably good capacity for removing perchlorate.
Column Test at an EBCT of 60 Min (MMT-6006)
Total perchlorate removed (after 22 days)
83 mg
Weight of the media used in the columns
25.3 g
Capacity
3-3 mg/g
