https://www.dowater.com/jishu/2021-07-08/1806648.html. A rather...

https://www.dowater.com/jishu/2021-07-08/1806648.html. A rather long article. Reproduced first one third of the article. Bodes well that Zhejiang Tiandi is promoting MABR themselves. Reproducing the last paragraph which is self explanatory. For the rest of the article , please use google translate. Thanks to @jamesc666 for highlighting this article to me.

The results of this demonstration project not only deepen the technical staff's understanding of the degradation and removal process of MABR rural domestic sewage pollutants, but also provide certain practical and theoretical support for the future application and development of this technology in rural sewage treatment. (Source: Zhejiang Tiandi Environmental Protection Technology Co., Ltd.)