Can the breather valve of a large storage tank discharge directly to the atmosphere?

The vent valves of large storage tanks that discharge directly into the atmosphere do pose environmental concerns, as this practice can lead to the uncontrolled release of pollutants such as volatile organic compounds (VOCs). In accordance with the latest environmental regulations, storage tanks that may emit harmful gases generally require corresponding emission reduction measures, such as the use of recovery systems or the installation of filtration devices, to minimize their impact on the environment. Specific environmental protection requirements and regulations may vary by region; it is recommended to consult the local environmental protection authorities or review relevant environmental regulations and standards, such as the \"Technical Guidelines for the Control of Volatile Organic Compound Emissions\", to ensure compliance with all applicable environmental requirements. Conducting an environmental impact assessment before implementing a project is also a very important step. .

Refering to the \"Emission Standards for Pollutants in the Petrochemical Industry\" GB 31571-2015, if it is ordinary water, direct discharge is acceptable; however, if there are substances whose emission is restricted as specified in the standards, those substances need to be treated centrally before discharge is allowed, once they meet the required standards

Environmental protection is highly subjective. In other words, consider the opinions of local experts. It is recommended to purchase a breathing valve with an exhalation tube. As for whether collection is needed, that’s another matter. You can also, without caring too much about details, collect the exhaust gases by category and feed them into the appropriate exhaust gas treatment facilities, so that no one will have anything to say. We used to direct it centrally to the activated carbon adsorption box. When those experts come to conduct an inspection and see this measure in place, some won’t say anything, but if things are examined more closely, activated carbon adsorption is actually just a formality. First, you need to have adsorption and desorption records; secondly, you also need to check whether the exhaust emissions meet the standards. Finally, once the activated carbon is saturated, disposing of it as hazardous waste also incurs costs. Activated carbon has an extremely low treatment efficiency and can only provide temporary relief.

According to environmental regulations, the vent valves of large storage tanks cannot discharge directly into the atmosphere. Emission control devices, such as gas recovery systems or purification equipment, should be installed to prevent uncontrolled emissions.

It depends on what type of gases are being emitted; some gases are harmful to the environment and dangerous to human health, so they need to be collected and treated centrally

A design for direct emission into the atmosphere should be an emergency measure, used only as a last resort when other containment methods fail. Generally, large storage tanks are equipped with pressure control accessories such as flare systems and safety valves; in the event that multiple protection mechanisms fail, the liquid is released directly into the atmosphere to prevent more serious accidents