Talk:Activated sludge

message: Being a bit in a hurry, I have no time to edit this article further at the moment. but I'm embarrassed by an obvious flaw: only bacteria are mentioned, though other folks are involved in the process, such as protozoans. Could anyone there be kind enough to complete this and add the nice wikilinks to other organisms ? Kekel 08:49, 11 July 2006 (UTC)
thread_title:  Bacteria & Co 

message: The globalize tag has been added more than 5 months ago without explanation on what in this article is UK biased. Working in the water treatment field, I'm not from the UK but I don't really see what is so biased in this article.
I'm removing the tag. Feel free to revert or to "globalize" this article if you can document this. --GrDn (talk) 21:33, 30 January 2008 (UTC)
thread_title:  Globalize Tag 

message: Are images such as this relevant? It's of the micro-organisms. EChastain (talk) 15:19, 15 April 2015 (UTC)
replies: text: Yes, this image would be relevant (with the right caption) as it shows activated sludge under the microscope. EvM-Susana (talk) 15:52, 15 April 2015 (UTC)
replies: text:  I have added this image now to the text. Would be good if someone could identify more exactly the microorganism that is shown there to make the caption more precise. I can't remember off the top of my head, would have to look it up somewhere.EvM-Susana (talk) 22:27, 27 April 2015 (UTC)
replies: text: I fully agree that the image should be present, these organisms are what Activated sludge is. There are two species included in the picture, one is a colonial Voticelid such as Carchesium (although not Carchesium) and the other appears to be a single  Heliozoan. I'll try to check them out later today  Velella  Velella Talk   08:08, 28 April 2015 (UTC)
replies: text: From the images it is very difficult to make a definitive identification even to genus level, but it looks like a colony of Epistylis, all with their coronas of cilia retracted, and a stalked Heliozoan of some sort. It would probably be incorrect to assign a more definite identification unless the photographer can provide some information or unless there is an expert in freshwater protozology lurking around! Regards 20:44, 28 April 2015 (UTC)
thread_title: Images

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thread_title:  External links modified 

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thread_title:  External links modified (January 2018) 

message: I'm not convinced that RAS controls MLSS, as claimed in the article.
Based on these control methods, the amount of settled solids in the mixed liquor can be varied by wasting activated sludge (WAS) or returning activated sludge (RAS).
Unless what is meant is that varying the RAS ration affects the RAS / WAS solids, so affecting the WAS flow required for a given MLSS.
But treating WAS as a fixed mass flow of solids then RAS drops ou.  — Preceding unsigned comment added by Bendel boy (talk • contribs) 13:21, 6 February 2022 (UTC)
thread_title:  Process control 

message: Hi User:Marllg: I've just reverted your addition a second time because: this content is not wrong but it has been added without any refs, and some of it is too detailed, like a how-to guide and thus not encyclopedic. Please discuss it here further before putting it back in. EMsmile (talk) 11:43, 19 January 2023 (UTC)
replies: text: Just noting that I have performed revision deletion as pretty much all of the text was copied from other websites and documents that do not appear to be compatibly licensed. DanCherek (talk) 15:39, 19 January 2023 (UTC)
thread_title:  Content addition that is not encyclopedic