| Summary: | 碩士 === 國立中興大學 === 環境工程學系所 === 99 === The study adopted the air pollution method to implement the treatment for exhaust gas storage tank containing (p-xylene, pX) Due to the lack of adequate air pollution control devices, the gaseous pollutant are partially emitted from the breather valve. This study, by using the trickle-bed air biofilter (TBAB) method, may efficially reduce the emission of pX gas.
The emitting gas was collected and directly led to TBAB. The ditector on pipe can monitor the system exit and provided information. This was to assess the optimal operational criteria and estimating the efficiency of TBAB. In initial operation, the microorganisms was incubing, so the implement rate was lower. With the time increasing, the among of microorganisms would raise. After 36 days, the efficiency reached 90%. Then 6 months later, the quantity of VOCs reduced to 4710kg (785kg/month). TBAB system cut $141,300 in air pollution expense.
According the experiment result, it could be concluded that a stable and efficient treatment technology for standing storage VOC loss from fixed roof organic liquid tanks can be deployed. This consists of an AC buffer with a sufficient amount of AC to supply a suitable in- let VOC concentration to full-scale biofilter providing a good performance. This experimental setup won’t lead to second pollution or other problems in the future. TBAB system can efficiently reduce VOCs pollution, raising the air quality in Taiwan.
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