Jiangsu Provincial Department replied: Should VOCs waste gas be monitored online after it is incinerated in the boiler?

: On the issue of on-line monitoring of flue gas after VOC exhaust gas is incinerated in the boiler

Content: Our company will produce the exhaust gas (mainly alcohols, aldehydes) treated by the wastewater stripper into our company's production of supporting heat transfer oil boiler incineration, the design air volume of the exhaust gas is 15m3/h, and the air volume of the heat transfer oil boiler is 45000m3/h
.
The operating time of the heat transfer oil boiler can ensure the demand
for production wastewater treatment.
In the EIA, the exhaust cylinder assessment does not involve VOC emissions, and our company believes that although the air volume of the exhaust cylinder is greater than 40000m³/H, the amount of stripping exhaust gas is too small, which does not belong to the key control of VOCS and does not need to install VOCS online monitoring
.
Does it meet the specifications?

Content replies

Hello, your message has been received, thank you very much for your attention to
ecological environmental protection.
Based on your inquiry, after research, the reply is as follows:

The fourth paragraph of Article 9 of the Measures for the Administration of Automatic Monitoring of Pollution Sources in Jiangsu Province (Trial) (Su Huanfa [2021] No.
3) stipulates that "VOCs automatic monitoring equipment shall be installed in the chemical industry with a design hourly exhaust gas emission of 10,000 cubic meters or more per unit discharge port, and in other industries of 30,000 cubic meters and above"
.
According to your message, the exhaust cylinder assessment in your company's EIA does not involve VOC emissions
.
After further communication, your company commissioned a third party to test the discharge port and did not detect the VOC concentration, although the hourly emission of exhaust gas is greater than 30,000 cubic meters, but the manual monitoring concentration is 0
.
According to the second paragraph of Article 8 of the Measures for the Management of Automatic Monitoring of Pollution Sources in Jiangsu Province (Trial) (Su Huanfa [2021] No.
3), "if the emission concentration of monitoring factors is lower than the detection limit of available instruments for a long time, automatic monitoring and monitoring equipment and its supporting facilities may not be installed for the time being", if the detection concentration is lower than the minimum detection limit of VOCs online detection instruments, online monitoring equipment
can not be installed.
Please strictly follow the relevant requirements of national self-monitoring, regularly carry out self-monitoring, and save the test report for reference
.