Q. What is the minimum flow rate for water treatment?

View solution

Q. What is the maximum operating flow for mixed bed units?

View solution

Q. Which is the year zeolite was used as ion exchange water softeners?

View solution

Q. _________resins can neutralize strong bases.

View solution

Q. Calculate the amount of resin required for the following information.

Cation Load: 10 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. Calculate the amount of resin required for the following information.

Cation Load: 30 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. Calculate the amount of resin required for the following information.

Cation Load: 80 ppm as CaCO₃
Capacity: 47 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. Calculate the amount of resin required for the following information.

Cation Load: 100 ppm as CaCO₃
Capacity: 57 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. Calculate the SAC resin required for the following data. It should be noted that prior to the SAC, a WAC system is present.

M Alkalinity: 100 ppm as CaCO₃
P Alkalinity: 100 ppm as CaCO₃
EMA: 50 ppm as CaCO₃
Capacity: 57 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. The treatment system consists of a WAC, SAC which is followed by a WBA and SBA. Calculate the amount of WBA resin required for the following data.

M Alkalinity: 100 ppm as CaCO₃
P Alkalinity: 100 ppm as CaCO₃
EMA: 25 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 135 m³/hr
Operation hours: 20 hrs

View solution

Q. The treatment system includes a WAC, SAC, followed by a WBA and SBA. There is no degasser in this system. Calculate the amount of resin required for the following information.

M Alkalinity: 100 ppm as CaCO₃
P Alkalinity: 100 ppm as CaCO₃
Silica: 45 ppm as CaCO₃
CO₂: 45 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 35 m³/hr
Operation hours: 10 hrs

View solution

Q. The treatment system includes a WAC, SAC, followed by a WBA and SBA. There is a degasser in this system. Calculate the amount of SBA resin required for the following data.

M Alkalinity: 100 ppm as CaCO₃
P Alkalinity: 100 ppm as CaCO₃
Silica: 30 ppm as CaCO₃
CO₂: 45 ppm as CaCO₃
EMA: 100 ppm as CaCO₃
Capacity: 37 Kg/m³
Correction factor: 0.9
Flow rate: 35 m³/hr
Operation hours: 10 hrs

View solution

Q. ________ is the removal of calcium, magnesium and certain other metal cations in hard water.

View solution

Q. Soft water can foul plumbing.

View solution

Q. ________ form insoluble salts.

View solution

Q. Which of these methods does not remove hardness?

View solution

Q. Ion exchange resins are ______

View solution

Q. Ion exchange resins contain cation functional groups.

View solution

Q. _____ is added to hard water to make it softer.

View solution

Q. ________ is used in detergents to soften water.

View solution