The document discusses different methods of water softening using lime soda processes. There are cold and hot lime soda processes, with the hot process being more efficient.

In lime soda-ash softening plants, the softening process may be carried out by a sequence of rapid mix, flocculation, and sedimentation or in a solids contactor.

The slaked lime reacts with the sodium carbonate to form caustic soda and calcium carbonate (CaCO3). The resulting mixture is then left to settle, allowing the calcium carbonate to precipitate out. After …

Feb 28, 2025 · The Lime Soda process involves the addition of lime (calcium hydroxide, Ca (OH)₂) and soda ash (sodium carbonate, Na₂CO₃) to hard water. This chemical reaction precipitates calcium and …

The Lime-Soda Process converts soluble hardness into insoluble compounds, while the Ion Exchange Process uses resins to eliminate ions, producing deionized water suitable for high-pressure boilers.

In this video cold lime soda process is explained with a neat labelled diagram @sadhanadhananjaya #chemistry #science

As illustrated in Figure 1, the technique is a cyclic process that requires energy input alone (fuel rather than electricity) and outputs a stream of essentially pure CO 2 that can then be ...

The document describes the lime soda process, an obsolete method for softening hard water. It works by precipitating calcium and magnesium ions through the addition of lime (Ca (OH)2) and soda ash …

It is carried out at temperature $80- 150^ {\circ}c$. It is used when small quantity of water is required. But it takes place at low hardness ie. 15-25 ppm. Due to hot condition- i) Reactions take place faster. …

LIME-SODA PROCESS Basic principle: Lime [Ca(OH)2] and soda [Na2CO3] are the reagents used to precipitate the dissolved salts of Ca+2 and Mg+2 as CaCO3 and Mg(OH)2. The precipitated CaCO3 …