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Technical analysis of shell activated carbon in various wastewater treatments. Shell activated carbon treatment of phenol-containing wastewater. Phenolic wastewater is widely used in petrochemical plants, resin plants, coking plants and refinery plants. It has been proved by experiments that the adsorption performance of activated carbon on phenol is good, the temperature increase is not conducive to adsorption, and the adsorption capacity is reduced; however, the time to increase the adsorption equilibrium is shortened. The optimum amount of activated carbon and adsorption time existed. Under acidic and neutral conditions, the removal rate did not change much. Under strong alkaline conditions, the removal rate of phenol decreased sharply. The stronger the alkali, the worse the adsorption effect.
The shell activated carbon treats mercury-containing wastewater. Activated carbon has the property of adsorbing mercury and mercury-containing compounds, but has limited adsorption capacity and is only suitable for treating wastewater with low mercury content. If the concentration of mercury is high, it can be treated by chemical precipitation method. After treatment, it contains about 1 mg/L of mercury, and when it is high, it can reach 2-3 mg/L, and then it is further treated with activated carbon.
The shell activated carbon treats the cyanide-containing wastewater. In industrial production, cyanide or by-product cyanide is used in the wet extraction of gold and silver, the production of chemical fiber, coking, ammonia synthesis, electroplating, gas production, etc., so a certain amount of cyanide is inevitably discharged in the production process. Waste water.
The shell activated carbon treats the chromium-containing wastewater. Chromium is a kind of metal raw material which is used in a large amount in electroplating. In the waste water, hexavalent chromium exists in different forms depending on the pH value. Activated carbon has a well-developed microporous structure and a high specific surface area, and has a strong physical adsorption capacity, which can effectively adsorb Cr(VI) in wastewater. There are a large number of oxygen-containing groups such as hydroxyl groups (-OH) and carboxyl groups (-COOH) on the surface of activated carbon, which have electrostatic adsorption functions and chemical adsorption on Cr(VI).
The “Qi Kun†brand shell series activated carbon produced by our company is of high quality and rich in variety. It has formed more than 20 varieties of four series of gas phase, liquid phase, catalyst and carrier. "Customer-centered, quality-assured, service-oriented" is the company's business purpose, "nothing is fine, all are good" to continuously expand the popularity of the "Qi Kun" brand, we have been committed to scientific management, Production and sales networked company development road, we are willing to work with domestic new and old customers to create a better tomorrow. Shell activated carbon http:// 