The treatment of waste gas of tolual by bio-filter is a transfer process that is mainly controlled by gas-film.
生物滤池处理甲苯废气，是以气膜控制为主的传质控制过程。
2
Onsite bench test of refinery odor sulf-gas treatment has been successfully carried out with bio-filterprocess.
应用生物滤床工艺，对炼油厂含硫恶臭废气进行了现场小型侧流试验研究并取得成功。
3
It is pointed out that further improving the operation, enhancing the effect of nitrogen and phosphorus removal and advancing the process of bio-filter is the aim of study in the future.