CLARIFIER WORK and ANIMATION (CARA KERJA KLARIFIER dan ANIMASI) | Clarifier Tank WTP and STP

Summary

This video provides an in-depth explanation of clarifiers, key components in water treatment. It covers the clarifier’s role in separating suspended solids from water using a combination of chemical processes (coagulation and flocculation) and physical processes (sedimentation). The video details the types of clarifiers used in industry, the various zones in a clarifier, and the importance of maintaining water clarity. The process also involves the removal of oil and grease. Viewers are encouraged to understand the process more deeply and to check out additional videos on related topics.

Takeaways

• 😀 Clarifiers combine chemical processes (coagulation and flocculation) and physical processes (sedimentation) to separate solids from liquids in water treatment.
• 😀 Clarifiers are used to reduce Total Suspended Solids (TSS) in water, improving clarity and overall water quality.
• 😀 Two common types of clarifiers in industrial applications are the retailer clarifier and the circular clarifier.
• 😀 Clarifiers are effective in treating visibly turbid water, making it clearer and extending the lifespan of downstream filtration processes like activated carbon filters and reverse osmosis.
• 😀 Clarifiers are widely used in industries such as drinking water treatment (PDAM), raw water treatment for demineralization plants, and cooling water systems.
• 😀 A clarifier has four main zones: influent zone, settling zone, sludge zone, and effluent zone. Each zone plays a specific role in the separation process.
• 😀 The influent zone is where raw water enters the clarifier, while the settling zone is where sedimentation of solids occurs.
• 😀 The effluent zone contains clarified water, which is sent to the next stage of the treatment process, while the sludge zone collects separated solids.
• 😀 The process of clarification relies on gravity to separate suspended solids from the water, resulting in cleaner water and settled solids.
• 😀 Sludge from the clarifier is collected and either discarded into a tank or recycled back into the treatment process as Return Activated Sludge (RAS) for biological treatment.
• 😀 The clarifier also features an oil and grease separator to remove fats, oils, and foam that may float on the surface of the clarified water.

Q & A

What is the main function of a clarifier?

A clarifier is a unit used for separating solids from liquids, combining chemical processes like coagulation and flocculation, along with physical processes like sedimentation, to reduce total suspended solids (TSS) in water, resulting in clearer water.

What are the two common types of clarifiers used in industry?

The two common types of clarifiers are the retailer clarifier and the circular clarifier.

How does a clarifier improve the filtration process?

A clarifier effectively clears murky water, thus improving its clarity and extending the lifespan of filtration processes such as carbon filters, softeners, and reverse osmosis systems.

Where are clarifiers typically used?

Clarifiers are commonly used in water treatment plants, including drinking water treatment, raw water processing for demineralization plants, and cooling water systems in various industries.

What are the four zones in a clarifier?

The four zones in a clarifier are the influent zone, settling zone, sludge zone, and effluent zone. These zones handle the input, separation of solids, storage of sludge, and output of clean water, respectively.

What happens in the influent zone of a clarifier?

In the influent zone, the water mixed with suspended solids (MLSS) enters the clarifier and is prepared for the separation process.

What occurs in the settling zone of a clarifier?

In the settling zone, the process of separation occurs, where the solids start to settle down under gravity, and clear water starts to form.

How is the sludge handled in a clarifier?

The sludge, which is the settled solid matter, is collected in the sludge zone and transferred to a storage tank. Some of it may be reused in biological processes, like in an aerobic pond, while the rest is disposed of.

What is the role of the oil and grease separator in a clarifier?

The oil and grease separator, which is installed above the clarifier, helps separate any oil, grease, and foam that float on the surface of the clarified water.

What is the function of a settler in the clarifier system?

The settler in the clarifier system collects the flocculated particles and ensures they are separated from the water. Flocculation and coagulation chemicals are added in the mixing tank before the clarifier for better separation.