Activated carbon is a kind of carbon after special treatment, it has a strong adsorption capacity, often used by enterprises to purify industrial waste gas, waste gas pollution substances will be trapped in the activated carbon pores, so as to prevent pollution of the atmospheric environment. But if the activated carbon is not replaced for a long time, the pore is blocked and can not play the role of adsorption and purification of waste gas, resulting in the waste gas without collection and treatment of the environment, causing serious pollution to the atmosphere.

On October 18, 2022, ecological environment bureau of shenzhen baoan administration (hereinafter referred to as the "administration" baoan) inspectors to some long electrical industry (shenzhen) co., LTD. Special verification, inspection found that the painting process of waste gas treatment facilities of form a complete set of activated carbon serious congestion, spray paint waste gas spillover obvious, seriously affect the processing efficiency.

Baoan administration law enforcement officers immediately conducted a detailed inspection of the company, after the check, the company has obtained approval of environmental protection, the main production water net gas humidification machine, dehumidifier, air purifier, pipe bender, automatic storage m washing m machine and its spare parts, etc., mainly equipped with injection molding, solder, paint spraying, silk screen process, supporting the construction of the waste gas treatment facilities.

During site inspection, the company's screen printing machine is in use, the screen printing station has not implemented the supporting exhaust gas collection and treatment facilities, the workshop is set up exhaust fans, doors and Windows are not closed, the exhaust gas is directly discharged into the environment; On-site inspection of the company's painting process was in normal operation. Inspectors found that a large amount of pink paint residue was attached around the activated carbon adsorption device on the roof of the company. When they opened the device, they found that the honeycomb activated carbon inside the device was seriously blocked, resulting in a large amount of spray paint exhaust directly extruded from the door crack of the activated carbon box.

In view of the above illegal acts, the Baoan Administration of law enforcement officers immediately made on-site inspection records. The Baoan Administrative Bureau has placed him on file recently for his alleged violation of Article 47 (3) of the Regulations on Ecological and Environmental Protection of Shenzhen Special Economic Zone and Article 15 of the Regulations on Environmental Protection and Management of Construction Projects.

The case fully illustrates the importance of enterprises to implement the main responsibility for environmental protection. Some enterprises usually neglect the daily management in the link of pollution control facilities, and the person in charge of the enterprise lacks environmental awareness, resulting in the direct discharge of most VOCs waste gas without treatment. Shenxiaohuan hereby suggests that all enterprises should strengthen the study of laws and policies, enhance the awareness of ecological protection, earnestly implement the main responsibility of environmental protection, strengthen the level of scientific and technological supervision, and ensure the standard emission.

Article 47 (3) of the Regulations on Ecological and Environmental Protection of Shenzhen Special Economic Zone: Illegal discharge of pollutants through hidden pipes, seepage Wells, seepage pits, perfusion or dilution, and abnormal operation of pollution prevention and control facilities is strictly prohibited.