Ackumen™ MCA-i™ The safer, smarter monochloramine offering - Paper Technology International 2023 Buckman - Paper Technology International 2023 - Flipbook - Page 50

Ackumen™ MCA-i™ The safer, smarter monochloramine offering - Paper Technology International 2023 Buckman

PAPERTECHNOLOGYINTERNATIONAL
Figure 6: Phase 2 Trial Conversion Evaluation of Hypochlorite Sensor. The sodium hypochlorite activity over a 24-hour period
is shown. As a new delivery was transferred to the run tank, the concentration increased from 8.5% to 12.5% and the MCA-i unit
automatically adjusted the MCAP : sodium hypochlorite ratio to maintain a stable MCA solution.
Figure 6: Phase 2 Trial Conversion Evaluation of the PID Flow Control Valves. The water booster pump variation over a 12-hour
period was compared between the Gen 4 unit and MCA-i. The flow variation was reduced by 75% due to the use of the PID flow
control valves in MCA-i.
Phase 3- Continued Optimization
The next phase in optimizing the customer’s biocide
program is utilizing the variety of control modes that MCA-i offers.
One step is to combine the machine production data with a total
chlorine probe at the headbox for tighter control of the program.
This and other control modes will continue to ensure that the right
amount of chemistry is used at the right time.
CONCLUSION
The Gen 4 dosing unit at this customer site produced a good, stable MCA solution that provided more than adequate biological
control to the process. To take this MCA program to the next level, Buckman was allowed to trial MCA-i. Data from the initial trial
and conversion to MCA-i have shown that the MCA residuals were maintained and thus biological control maintained while both
the MCAP and sodium hypochlorite dosage rates were reduced. Several of the key features of MCA-i, e.g., hypochlorite sensor for
chemical ratio control and PID control flow, provided the customer with significant chemical savings.
50

Paperturn flipbook system