Activated Carbon Filter | Coconut Shell Carbon Filtration Unit | Industrial Water Dechlorination & Odor Removal System

Working Principle The activated carbon filter relies on two mechanisms: physical adsorption and chemical adsorption. As water passes through the activated carbon bed, residual chlorine reacts with the carbon surface and is reduced to chloride ions. Organic matter, odor, and color are trapped directly by the carbon's dense microporous structure. The key components are straightforward: distribution header, activated carbon bed, support layer, collection header, plus an automatic control valve. Coconut shell carbon offers a large specific surface area, well-developed micropores, and high strength — particularly well-suited for high-purity water pretreatment. Once adsorption capacity is exhausted, backwashing flushes out trapped suspended solids and restores flow capacity. Application Fields 1.Drinking Water & Municipal Supply: Advanced purification in water plants, dechlorination and odor removal in secondary water supply 2.Boiler & Industrial Water Pretreatment: Dechlorination for boiler makeup water and circulating water systems, protecting ion exchange resin 3.Reverse Osmosis (RO) Pre-Protection: Removing residual chlorine to prevent oxidative degradation of RO membranes 4.Wastewater Advanced Treatment: Decolorization, COD removal, and trace organic removal in industrial wastewater FAQ Q1: What substances can the activated carbon filter remove? A: It primarily removes residual chlorine, organic matter, odor, color, and some heavy metals. Residual chlorine removal can exceed 99%, and COD removal typically exceeds 60%. It also adsorbs trihalomethane (THM) precursors, pesticide residues, and phenolic compounds effectively. However, it cannot remove dissolved salts such as calcium, magnesium, or sodium ions — those require ion exchange or reverse osmosis treatment. Q2: What is the difference between coconut shell activated carbon and coal-based activated carbon? A: Coconut shell carbon is predominantly microporous, with a large specific surface area, strong adsorption of small-molecule organics and residual chlorine, high strength, and low ash content — ideal for high-purity water pretreatment and drinking water purification. Coal-based carbon is predominantly mesoporous, lower in cost, and suited for industrial wastewater treatment and high-flow pretreatment. Selection tip: For RO pre-protection or drinking water, choose coconut shell carbon. For wastewater decolorization and COD removal, coal-based carbon will do the job. Q3: How often does the activated carbon filter media need to be replaced? A: Coconut shell carbon typically lasts 1–2 years, while coal-based carbon lasts about 1 year. Actual lifespan depends on inlet residual chlorine concentration, organic content, and operating hours. Signs it's time to replace: outlet residual chlorine consistently exceeds limits, COD removal rate drops noticeably, or pressure differential remains high after backwashing. For RO pre-treatment applications, test outlet residual chlorine annually to ensure membrane system safety.