Cold Lime Soda Process

TL;DR

Learn about the cold lime soda process, where a calculated quantity of lime and soda are mixed with water at room temperature to remove impurities and obtain soft water.

Transcript

click the bell icon to get latest videos from akira hello friends in the previous session we studied about what exactly lime soda process is what are the different buy processes of it and an introduction to the logic of it today we are specifically going to study the cold Lange soda process cold I'm sort of process in this method calculated quantit... Read More

Key Insights

• 🥶 The cold lime soda process is used to remove impurities and obtain soft water.
• 🚾 The water used in the process needs to be at room temperature.
• 🪜 A coagulant, such as alum, is added to help remove the precipitate and impurities.
• ❓ The process can be carried out in batch or continuous methods.
• ❓ Filtration is an important step to ensure the removal of all precipitates.
• ❓ The process requires careful balancing of chemical reactions.
• ❓ The sludge, containing the settled impurities, is removed from the tank.

Questions & Answers

Q: What is the purpose of the cold lime soda process?

The cold lime soda process is used to remove impurities from water and obtain soft water for various applications.

Q: Why is it called the cold lime soda process?

It is called the cold lime soda process because the water used in the process needs to be at room temperature, hence "cold."

Q: How is the precipitate of impurities formed in the process?

The addition of lime, soda ash, and a coagulant to water at room temperature causes a chemical reaction that results in the formation of a precipitate of impurities.

Q: What happens to the precipitate and impurities after the reaction?

The precipitated impurities settle down at the bottom of the tank, and the volatile compound CO2 is released. The water is then passed through a filter unit to remove any remaining precipitates.

Summary & Key Takeaways

• The cold lime soda process involves mixing lime, soda ash, and water at room temperature to create a precipitate that can be easily removed.

• A coagulant, such as alum, is used to attach to the precipitates or colloidal impurities, forming a semi-solid structure that can be filtered.

• The process can be carried out in two methods: batch process and continuous process.