Lagoon Algae problem

Asked May 23, 2016, 5:13 PM EDT

I work at a "Lagoon System" wastewater treatment plant. The algae is so bad in the polishing lagoon, that I can barely meet my Permit limits. It also uses a lot more Chlorine to get a good residual. I would appreciate any input, suggestions, comments, or a phone call @ 302-519-9133

New Castle County Delaware

1 Response

Hi Martin,

It was nice speaking a few moments ago. Sounds like you've researched this issue a lot already, but here are a few links that may give you some other ideas or resources to address this issue.

http://www.lagoonsonline.com/technote3.htm
http://www.krwa.net/lifeline/currentissue/0507reduce.pdf

Here is an article from University of Georgia Extension that promotes algae as a part of the wastewater treatment process:
http://extension.uga.edu/publications/detail.cfm?number=B1419

Other extension articles that say algae is good...
https://www.bookstore.ksre.ksu.edu/pubs/MF2290.pdf
http://www.nesc.wvu.edu/pdf/WW/publications/pipline/PL_SP97.pdf

And using duck weed is not recommended...
http://www.krwa.net/lifeline/1407/056.pdf

"A green covering of algae on the lagoon is normal. However, if duckweed grows and shades more than half of the water surface area, it should be removed. Contact your local MU Extension center for help in plant identification and recommended herbicide control."http://extension.missouri.edu/p/WQ402

Good luck and please feel free to get back in touch if you have other follow up questions or needs.

Jennvolk@udel.edu