污水处理厂除臭工艺选择及工程设计

Selection and design of odor removal systems for a wastewater treatment plant

随着无锡市城北污水处理厂二期工程的扩建,污水处理厂除臭问题日益突出。针对目前常用的化学、活性炭吸附、氧离子基团、燃烧、纯天然植物提取液喷洒和生物等6种除臭方法,重点说明了除臭工艺的选择及除臭系统的工程设计,最后结合运行情况总结了除臭系统的设计特点。

The odor problem became more serious at Wuxi Chengbei Wastewater Plant shortly after its second phase expansion project was completed. The author presented the case history of identifying sources of the odor, reviewing the control/treatment options, selection of the best method for controlling odor at major sources, design parameters and performance of the two odor control systems： the plant extract mist deodorization system for the hori- zontal grit removal tank and the containment and biofilter odor treatment system for the anaerobic hydrolysis tank. The odor containment, collection and transportation of odorous gas and the operations of the odor control/treatment systems were described in detail. The excellent odor control/treatment performance has resulted in an acceptable plant environment.