because Activated carbon The requirements for water pretreatment are high, and the price of activated carbon is expensive. Therefore, in wastewater treatment, activated carbon is mainly used to remove trace pollutants in wastewater to achieve the purpose of deep purification. The company has advanced production technology and perfect testing methods, strong technical force and scientific management. Over the years, it has been praised by the majority of users.

　　1 Activated carbon manufacturer Treatment of wastewater containing chromium by activated carbon

Chromium is a kind of metal raw material with large amount in electroplating. Hexavalent chromium exists in different forms with different pH values in wastewater.

Activated carbon has a very developed microporous structure and high specific surface area, and has strong physical adsorption capacity, which can effectively adsorb Cr (Ⅵ) in wastewater. There are a large number of oxygen containing groups on the surface of activated carbon, such as hydroxyl (- OH), carboxyl (- COOH), etc. They all have electrostatic adsorption function, and produce chemical adsorption on Cr (Ⅵ). It can completely be used to treat Cr (Ⅵ) in electroplating wastewater, and the wastewater after adsorption can meet the national discharge standard.

The experiment shows that when the mass concentration of Cr (Ⅵ) in the solution is 50mg/L, pH=3, and the adsorption time is 1.5h, the adsorption performance of activated carbon and the removal rate of Cr (Ⅵ) reach the best effect.

Therefore, the process of using activated carbon to treat chromium containing wastewater is the result of the comprehensive action of activated carbon on the physical adsorption, chemical adsorption, chemical reduction, etc. of Cr (Ⅵ) in solution. Activated carbon treatment of chromium containing wastewater has stable adsorption performance, high treatment efficiency, low operating costs, and certain social and economic benefits.

2. Activated carbon manufacturers talk about the treatment of cyanide containing wastewater by activated carbon

In industrial production, cyanide or by-product cyanide is used in the wet extraction of gold and silver, production of chemical fiber, coking, synthetic ammonia, electroplating, gas production and other industries, so a certain amount of cyanide containing wastewater must be discharged in the production process.

Activated carbon has been used to purify wastewater for a long time, and there are more and more literature reports on its application to the treatment of cyanide containing wastewater. But because CN_ The adsorption capacity of HCN on activated carbon is small, generally 3mgCN/gAC~8mgCN/gAC (depending on the variety), which is uneconomical in treatment cost.

3 Activated carbon manufacturers tell about activated carbon treatment of mercury containing wastewater

Activated carbon can adsorb mercury and mercury containing compounds, but its adsorption capacity is limited, so it is only suitable for treating wastewater with low mercury content. If the concentration of mercury is high, the chemical precipitation method can be used to treat it first. After treatment, the mercury content is about 1mg/L, up to 2-3mg/L when it is high, and then activated carbon can be used for further treatment.

4. Activated carbon manufacturers talk about activated carbon treatment of phenol containing wastewater

Phenolic wastewater widely comes from petrochemical plants, resin plants, coking plants and oil refining and chemical plants. The experiment shows that the activated carbon has good adsorption performance for phenol, and the increase of temperature is not conducive to adsorption, which reduces the adsorption capacity; However, the time to reach adsorption equilibrium is shortened when the temperature is increased. The amount of activated carbon and adsorption time have optimal values, and the removal rate has little change under acidic and neutral conditions; Under the strong alkaline condition, the phenol removal rate drops sharply. The stronger the alkalinity, the worse the adsorption effect.

5. Activated carbon manufacturers talk about activated carbon treatment of methanol containing wastewater

Activated carbon can adsorb methanol, but its adsorption capacity is not strong, so it is only suitable for treating wastewater with low methanol content. The project operation results show that the COD of the mixed solution can be reduced from 40mg/L to below 12mg/L, the removal rate of methanol can reach 93.16%~100%, and the effluent quality can meet the water quality requirements of the inlet water of the boiler desalted water system.

6. Activated carbon manufacturers describe the advanced treatment of refineries

The oily wastewater from the refinery, after oil separation, air flotation and biological treatment, is further treated by sand filtration and activated carbon filtration. The phenol content of wastewater decreased from 0.1mg/L (after biological treatment) to 0.005mg/L, the cyanide content decreased from 0.19mg/L to 0.048mg/L, and the COD content decreased from 85mg/L to 18mg/L

The company's products are widely used in water treatment systems of water purification, electricity, chemical industry, metallurgy, gas, textile, printing and dyeing, oil and urban water supply and drainage industries. The company has always adhered to the principle of technology as the guide, quality and development, so that quality and reputation can open up the market, so that preferential prices can occupy the market, and won praise from users.