The main objective of this review article is to provide a comprehensive view on various conventional and emerging side-stream ammonia removal treatment options for municipal wastewater treatment plants (WWTPs). Optimization of wastewater treatment facilities from an energy and emissions stand-point necessitates consideration of the impact of the various internal side-streams. Side-streams from anaerobic sludge digesters in particular have the potential to be a significant ammonium load to the mainstream treatment process. However, the literature suggests that managing side-streams through their treatment in the mainstream process is not the most energy efficient approach, nor does it allow for practical recovery of nutrients. Furthermore, as effluent criteria become more stringent in some jurisdictions and sludge hydrolysis pre-treatment for digesters more common, an understanding of treatment options for ammonia in digester supernatant becomes more important. Given these considerations, a variety of side-stream treatment processes described in the literature are reviewed.

这篇评论文章的主要目的是为市政废水处理厂（WWTP）提供各种常规的和新兴的侧流氨气去除处理方案的全面介绍。从能源和排放的角度优化废水处理设施，必须考虑各种内部支流的影响。厌氧污泥消化池产生的侧流尤其有可能成为主流处理工艺中大量氨气的负荷。但是，文献表明，在主流工艺中通过对其进行处理来管理支流并不是最节能的方法，也无法实际回收养分。此外，随着某些地区的出水标准变得越来越严格，消化池的污泥水解预处理越来越普遍，对消化池上清液中氨的处理选项的了解变得越来越重要。考虑到这些考虑因素，对文献中描述的各种支流处理方法进行了综述。