Deodorants uses high-quality granular activated charcoal of high strength and large pore volume as the carrier. With surface area of more than 1200 m2 / g and loaded with a variety of active ingredients and catalyst, it can remove hydrogen sulfide, organic sulfur, organic substances and other smelly substances in the wastewater, thus greatly enhance deodorizing effect. It is suitable for the removal of hydrogen sulfide, mercaptan, sulfide and other malodorous substances in the wastewater in the petrochemical, oil field, metallurgy, chemical fiber, paper making and other industries. By replacing the former alkaline washing process, it can truly realize cleaning process with no alkali emissions.