There are many methods for sewage treatment, including sedimentation, filtration, redox, adsorption, etc. utilize Honeycomb activated carbon For sewage treatment. Different honeycomb shall be selected for different pollutants Activated carbon 。 How can honeycomb activated carbon improve water purification effect?

1. Mercury containing wastewater: the activated carbon made from wood, coconut shell and coal through steam activation has a high mercury removal amount from the solution with a ph value lower than 5. If the ph value increases, the mercury removal amount decreases; Activated carbon made from wood activated by zinc chloride method has a high mercury removal amount, even when the ph value is higher than 5, it still has a high mercury removal amount.

2. Wastewater containing polychlorinated biphenyls: Both wooden activated carbon and granular activated carbon can be used to treat wastewater containing polychlorinated biphenyls. Activated carbon with saturated adsorption can be regenerated by thermal regeneration, washed with benzene, and recovered by extraction. If 200g activated carbon is used, 0.1% of PCBs have been adsorbed, and 400mL benzene is heated at 50 ℃ for 3~5h, 95%~98% of PCBs can be removed, and the remaining PCBs in the effluent can be μ G/L below, meeting the emission standard.

3. Wastewater containing organic acid: wastewater containing trace acetic acid can be treated by adsorption with activated carbon, and saturated activated carbon can be regenerated and recovered by heating method. In order to obtain better treatment effect, activated carbon adsorption method and oxidation method can be combined to treat wastewater containing acetic acid, the main pollutant.

Honeycomb activated carbon treatment of industrial wastewater can effectively ensure the stability of the effluent quality. At the same time, combined with other methods, it can improve the purification effect. The effluent can even meet the standard of drinking water, and achieve recycling.