史亚微 王垚 高虹 王帅 宋繁永 李天元 黄玉杰 潘美霖

摘要 随着我国养殖规模快速扩大，畜禽废水大量产生，对养殖场周边生态环境造成严重威胁。曝气吹脱是处理畜禽废水诸多工艺中的重要环节，在有效降低畜禽废水有机污染物负荷的同时，还可以回收废水中的氮磷等元素为肥料。然而，关于吹脱工艺处理畜禽废水还没有相关的研究综述。因此，该研究旨在总结吹脱法回收养殖场废水中铵盐的经验以及比较不同工况下的吹脱效率。此外，还比较了包含吹脱技术的几种复合处理系统对畜禽废水的处理效果以及主要的影响参数。结果表明，各处理系统可以通过从废水中提取有附加值的化合物及副产品，说明吹脱是脱除养殖废水和沼液中污染负荷的有效方法;另一方面，吹脱处理养殖废水和沼液的研究还不够广泛，需要开展更多的研究。

关键词 吹脱工艺;硫酸铵;鸟粪石;沼液;氨氮;畜禽废水

中图分类号 X 713  文献标识码 A

文章编号 0517-6611（2021）14-0013-05

Abstract With the rapid development of livestock raising，a large amount of wastewater is produced，which poses a serious threat to the surrounding environment. Air stripping is one of the most important processes in wastewater treatment. Air stripping can effectively reduce the contents of organic pollutants in wastewater. Meanwhile，nitrogen and phosphorus can also be recovered as fertilizer during the process. However，there has been little review on the wastewater treatment by air stripping. Therefore，the purpose of this review was to summarize the experience of ammonium recycling in swine wastewater by air stripping，recovery efficiency was also compared under different working conditions. Besides，the effects of several composite treatment systems with air stripping were also compared and the influencing parameters was discussed. The results showed that the treatment system could recover some valuable byproducts from the wastewater，indicating that air stripping was an effective method for removing and reducing the pollution contents in wastewater. On the other hand，more research was needed on the wastewater treatment with air stripping.

Key words Air stripping;Ammonium sulfate;Struvite;Digestate;Ammonia nitrogen;Livestock wastewater

基金項目 国家重点研发计划项目（2019YFC1804103）。

作者简介

史亚微（1986—），女，北京人，高级工程师，硕士，从事污水治理与工程设计研究。*通信作者，助理工程师，硕士，从事污水治理与工程设计研究。

收稿日期 2020-11-25

我国是世界畜禽养殖大国，大多数小型养殖厂产生的粪尿与养殖废水未经妥善利用和处理直接排放到环境中，对环境生态及人畜健康构成威胁。养殖废水量大且因含有大量的有机物和氮化合物等污染物使其较难处置，若处理不当很容易造成地表水甚至地下水的污染。……