DEHA - Association of Water Technologies

2001 Winter7. In low to moderate pressure industrial boiler systems, an initial feedwater DEHA dosageshould bea. 3-5 mg/Lb. 30-50 mg/Lc. 300-500 mg/Ld. 3000-5000 mg/L8. When replacing Hydrazine with DEHA the dose rate willa. remain the same as hydrazineb. have to increase by a factor of 2.c. reduced by 50%d. have to increase by 40%9. Sodium Sulfite and DEHAa. add considerable solids to the boiler waterb. promote passivation in the boiler feedwater or boiler water systems.c. can be fed separately to the same boiler system.d. have FDA approval for use in direct steam contact applications with food.10. DEHA has been utilized as an oxygen scavenger in boiler systems for the pasta. 5 yearsb. 20 yearsc. 50 yearsd. 75 years