Ann: Strategic China Partnership to Deploy Treatment Plants, page-194

A few links about how the Chinese have been dealing with their rural waste water in recent years.  No doubt more google time would reveal further info.


Conclusion on page 6 of first link shows how they are addressing their rural sewerage treatment problems in recent years, and likely never even heard of the word "Fluence".
  
http://iopscience.iop.org/article/10.1088/1755-1315/39/1/012037/pdf

Second link shows that they have been installing sewer treatment systems to rural villages across China in larger and larger numbers for some years now.
http://english.gov.cn/state_council/ministries/2017/07/05/content_281475712556342.htm

The mabr China dream looks to me to have been a con job on easily misled investors, myself being one unfortunately.  Some since sold at a large loss.  Some like me hang on to hopefully get their investment back.