Активен въглен

✅ What is Activated Carbon

• Activated carbon is a highly porous form of carbon processed to have extremely large internal surface area through treatment at high temperatures under controlled conditions. 

• Because of its porosity and huge surface area, activated carbon is very effective at adsorption: contaminants in water or air stick to the carbon surface (not absorbed inside) and are thus removed from the fluid.

💧 What Activated Carbon Removes / What It Does

Activated carbon is widely used in water filtration for:

• Removing chlorine from tap water (improving taste and removing odor). 

• Removing or reducing many organic contaminants (e.g. volatile organic compounds—VOCs), disinfection by-products, some pesticides, herbicides and other chemical impurities. 

• Improving water taste and odor, and removing unpleasant smells or colors. 

• Sometimes used as a polishing stage in water treatment (after sediment filters or before final use) to ensure water clarity and quality. 

✅ Why It’s Common / Advantages

• Activated carbon is versatile — it works in many settings: household water filters, industrial water treatment, air filtration, wastewater treatment, etc.

• It’s relatively inexpensive and widely available compared to more complex purification methods. 

• Provides effective improvement of water taste and odor, and removal of a broad class of organic and chemical contaminants — making water safer and more pleasant for consumption or use. 

⚠️ What Activated Carbon Does Not Do (or Where It Has Limits)

• Activated carbon usually does not remove dissolved inorganic salts, minerals, or heavy metals reliably. It’s mainly for organic and chemical contaminants, not for mineral content. 

• It cannot reliably remove microbes (bacteria, viruses) — so if water microbial contamination is a concern, a different or additional treatment (e.g. disinfection, filtration, UV) is needed.

• The filtration (adsorption) capacity is finite — over time activated carbon becomes saturated with contaminants; it needs regular replacement or regeneration depending on the system. 

📦 Forms & Typical Use in Water Treatment

• Activated carbon is often used in granular form (GAC — granular activated carbon), which is common for water filters (household, industrial). 

• It can be used in a filter bed (e.g. as a layer in a multimedia filter) to adsorb contaminants as water flows through. 

• Many water-filtering systems use activated carbon as one of multiple stages — often after a sediment filter but before final polishing or disinfection.