When comparison of softening of water which method is best?

Reverse Osmosis (Membrane Technology) This is an effective method for both water purification and water softening. It uses a number of stages to produce highly purified water. Calcium and magnesium ions are eliminated at the reverse osmosis membrane chamber where a pressure of about 35 psi is applied.

What are the various methods of water softening?

The four types of water softeners are Ion exchange, salt free, reverse osmosis and magnetic.

What are the two methods of softening of hard water?

Water can be softened by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.

What is the best method to remove water hardness?

A few methods to remove hardness from water are,

  • Chemical Process of Boiling Hard Water.
  • Adding Slaked Lime (Clark’s Process)
  • Adding Washing Soda.
  • Calgon Process.
  • Ion Exchange Process.
  • Using Ion Exchange Resins.

Which of the following acts best water softening agent?

1 Answer. (Sodium hexametaphosphate) commercially known as calgon is used for water softening.

What is permutit process?

The process in which hard water containing Ca2+ is filtered through sand named zeolite is called Permutit process. Permutit is a zeolite of an artificial source. It is orthosilicate of sodium aluminium compound with chemical formula Na2Al2Si2O8. xH2O. Chemically, it is hydrated sodium aluminium orthosilicate.

Which of the following methods gives soft water that is suitable for all types of boilers?

The insoluble calcium carbonate is the ‘fur’ (or scale) formed in kettles, boilers, pipes, etc. Permanent hardness can be removed by the following methods: Practical means for softening water rely on ion-exchange polymers or reverse osmosis.

Which process is called as softening process of water?

Lime-Soda Process:- It reduces the corrosion of pipes due to increased alkalinity.

What is zeolite process of water softening?

The zeolite softening process is used for removing both the temporary and permanent hardness of the water by precipitating the calcium and magnesium present in water as insoluble zeolites. In this process of softening of water, there is an exchange of Ca2+ and Mg2+ ion with the help of zeolite.

What is calgon method?

In chemistry, Calgon’s process can be defined as a process to create complex anions by ionising them. Calgon’s process is used to soften water by eliminating calcium and magnesium ions from hard water.

What is meant by Clark’s method?

Cold lime softening, also known as Clark’s process, is used to reduce raw water hardness, alkalinity, silica, and other constituents. This helps prepare water for direct use as cooling tower makeup or as a first-stage treatment followed by ion exchange for boiler makeup or RO Reject recycle.

Which of these methods does not remove hardness?

Which of these methods does not remove hardness? Explanation: The methods such as reverse osmosis, ion exchange resins and chelating agents are used to remove hardness. Sedimentation can be used to remove suspended solids. Explanation: Ion exchange resins are usually organic polymers.