Could you run a small tower beside the big one using the same feed water and see if the DCP is concentrated there also? Otherwise, Activated Carbon or other adsorbent to remove it is your best bet. I would look at renting a relatively large carbon bed and running is directly off the basin to pull the main concentrations down. Then a smaller bed run on a side stream should be adequate. You currently have about 37 grams of DCP dissolved in the water. At 7 cycles you will have less than 100 mg/day of incoming DCP. From Henry's Law, the very low mole fraction of the DCP and the low vapor pressure mean that relative to the evaporating water far less of the DCP is evaporating. That means that your 7-10 cycles for the water could be 100-1000 cycles of DCP. Since you are only at about two times the detection limit, you could increase your blowdown rate and you should see a reduction. But adsorbent is probably the better solution.
Published by Pat Stanford, General Manager
Could you run a small tower beside the big one using the same feed water and see if the DCP is concentrated there also? Otherwise, Activated Carbon or other adsorbent to remove it is your best bet. I would look at renting a relatively large carbon bed and running is directly off the basin to pull the main concentrations down. Then a smaller bed run on a side stream should be adequate. You currently have about 37 grams of DCP dissolved in the water. At 7 cycles you will have less than 100 mg/day of incoming DCP.
From Henry's Law, the very low mole fraction of the DCP and the low vapor pressure mean that relative to the evaporating water far less of the DCP is evaporating. That means that your 7-10 cycles for the water could be 100-1000 cycles of DCP. Since you are only at about two times the detection limit, you could increase your blowdown rate and you should see a reduction. But adsorbent is probably the better solution.