The issue of excessive VOC levels
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Recently, we received a notice from the environmental protection agency requiring corrective actions: the VOC levels in the company’s wastewater tanks and certain open storage tanks have reached 230 mg/M3, and we need to take action to address this issue； I wonder if any of you have encountered this problem ； How can it be improved in a more reasonable way ；
It depends on whether you want to recycle it or simply burn it if it has no value
The exhaust gases from wastewater tanks can generally be treated to meet standards using biological methods or low-temperature plasma technology.
Waste gas recovery systems, such as: washing and absorption facilities + condensation method + membrane separation + adsorption treatment, etc
This is easy – the gas collection hood collects the waste gas and directs it to the water treatment tank, that’s all
Is this feasible? If that works, then just adding a lid will solve the problem.
Use a gas collection hood to gather the gas, and then decide whether to recover it or decompose it based on the complexity of its composition. Generally, the volume of exhaust gas from sewage tanks is not large, so the investment required is not high; in such cases, decomposition is the better option. Both photocatalysis and low-temperature plasma technology can be used to solve this issue
Can the collected waste gas be treated by directly feeding it into the sewer treatment tank?
Sealed, with gas collected using a gas collection hood, and equipped with a small above-ground flare.
These days, people generally cover them with some kind of lid first
The lid is closed to direct the exhaust gases to the tail gas recovery system; after proper treatment, they are released into the atmosphere.