Índice de yodo del carbón activado y valor de CTC: Una guía práctica de selección para compradores industriales

If your procurement sheet only lists "iodine 1000+" or "CTC 60%," you are missing half the story. These two numbers measure entirely different pore structures. Using the wrong specification is one of the most expensive mistakes in activated carbon procurement. This guide shows how to match the right parameter—and the right Purestar product—to your actual operating conditions. What Is Iodine Number? (ASTM D4607) Iodine number measures liquid-phase micropore capacity. Under ASTM D4607, carbon is saturated with iodine solution,...

Cómo seleccionar carbón activado granular para la eliminación de PFAS en aguas subterráneas

PFAS contamination has become an important challenge in groundwater remediation and drinking water treatment. Granular activated carbon (GAC) is widely used to adsorb PFAS and other dissolved organic contaminants, but treatment performance can vary depending on the carbon type, PFAS composition and operating conditions. With EPA's Maximum Contaminant Level (MCL) for PFOA and PFOS set at 4 ppt, along with Hazard Index-based limits for PFHxS, PFNA, and GenX (HFPO-DA)—and compliance deadlines approaching for many water utiliti...

¿De verdad sirve de algo esa delgada capa de carbón activado que tiene tu filtro de aire?

Flip over almost any air purifier box and you'll see "activated carbon" printed somewhere on it. What the box usually doesn't tell you is how much carbon is inside — and in many cases, it's a thin coated sheet weighing a few grams. So is a thin layer activated carbon filter real filtration, or mostly marketing? The honest answer: it depends on three numbers. Why "Activated Carbon" on the Label Doesn't Mean Much Why do air purifiers use so little activated carbon? Mostly cost and space. A deep bed of granular carbon is s...

Cómo seleccionar carbón activado para la eliminación de mercurio de los gases de combustión

Activated carbon injection (ACI) is the most widely used technology for mercury control in coal-fired power plants, waste incinerators and industrial boilers. But mercury removal performance cannot be predicted by iodine number or carbon price alone. Mercury enters the flue gas as elemental vapor (Hg⁰), oxidized mercury (Hg²⁺) or particulate-bound mercury (Hgₚ). Each form behaves differently, and the split depends on fuel composition, chlorine/bromine content, combustion temperature and existing air-pollution-control (APC) ...

Cómo seleccionar carbón activado para la eliminación de H₂S en el biogás

Why H₂S Removal Matters in Biogas Hydrogen sulfide (H₂S) forms during anaerobic digestion of sulfur-rich organic matter. Its concentration varies with feedstock, digestion conditions, and process design. Common H₂S sources in biogas: Municipal wastewater sludge Food-processing waste Animal manure Agricultural residues Landfill waste Industrial organic wastewater If H₂S is not adequately removed, it causes pipe corrosion, engine damage, membrane contamination, reduced catalyst life, odor complaints,...

Carbón activado para la decoloración del jarabe de azúcar: guía de abastecimiento para comerciantes

Why Sugar and Syrup Decolorization Requires a Specialized Carbon Raw and partially refined sugar solutions may contain caramelized compounds, melanoidins, polyphenols, colloidal material, oxidation products and other organic color bodies. These impurities can affect the appearance of the final sugar, syrup or sweetener product and may complicate downstream filtration and crystallization. General-purpose water-treatment carbon is not automatically suitable for this application. Many drinking-water carbons are selected primar...