WEF Discussions — Now on LinkedIn!

WEF is pleased to announce the creation of free LinkedIn groups associated with its technical discussion forum topics. Through these LinkedIn groups, members will be able to view and participate in discussions, as well as communicate with one another via direct messages. Share your experiences and knowledge, ask questions and respond to other discussions as frequently as you like!

You must have a LinkedIn profile to join a LinkedIn group; you can create your profile here. If you already have a LinkedIn profile, all you need to do is submit a request to join one or all of the following groups:

Water Environment Federation (Main) | Biosolids | Collection Systems | Nutrients | Stormwater 
Utility Management | Water Reuse | Water for Jobs | Watershed Management | Laboratory Practices 

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Operation and Maintenance
  Topics Topic Starter Replies Views Last Post
Seasonal MLSS adjustment Joseph McDowell 2 15008 Sunday, April 11, 2010 2:01 PM 
Chemical Phosphorus Removal Tyrone McCabe 6 12640 Sunday, July 25, 2010 9:08 PM 
disinfection with paracetic acid mgille 8 12444 Tuesday, July 6, 2010 10:33 AM 
Quaternary Ammonium Compounds David Allen 3 12260 Monday, July 11, 2011 3:05 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 11952 Sunday, April 3, 2011 6:07 AM 
aerobic digester-very high solids-odor problem jim 4 11918 Sunday, May 16, 2010 5:13 PM 
Operators Meeting in WI Terry 0 11570 Friday, January 8, 2010 12:20 PM 
Digester Gas Piping GB Gehrke 6 11352 Wednesday, November 23, 2011 7:45 AM 
Chlorine survival in activated sludge Jurek 6 11268 Sunday, November 13, 2011 11:03 PM 
reduction of flows cb 2 11078 Wednesday, January 27, 2010 9:24 AM 
W3QLAS Anaerobic Digestion/Solids Dewatering Process Control Workshop Victor Santa Cruz 0 10681 Thursday, January 21, 2010 8:24 PM 
color codes for equipment and pipes deepleveltrash 1 10024 Wednesday, March 31, 2010 4:38 PM 
High fecal coliform results Carmine Goneconte 7 10017 Sunday, November 13, 2011 10:59 PM 
head loss at air diffused system Tiger 1 9961 Monday, July 5, 2010 11:55 AM 
floating sludge problem JC 1 9939 Saturday, April 24, 2010 6:42 PM 
Wastewater Blog Grant Weaver 5 9938 Monday, May 7, 2012 4:15 AM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 9867 Sunday, November 13, 2011 11:00 PM 
P.H. Problems D.Mak 6 9669 Wednesday, September 21, 2011 7:27 AM 
Polyethylene Glycol Treatability Keith Chapman 1 9663 Friday, November 25, 2011 1:56 AM 
Sand filters Flow rate peak cals..... SHARIFF 1 9641 Tuesday, February 23, 2010 12:45 AM 
trash pump solids handling recommended for mixed liquor Tom Hons 2 9561 Friday, May 28, 2010 3:30 PM 
Request for Spiral Heat Exchanger experience Richard Roberts 0 9362 Monday, March 15, 2010 7:24 AM 
Anaerobic sludge digestion Magnesium hyroxide slug mack72 2 9342 Saturday, November 26, 2011 10:20 AM 
Measuring grit accumulation in a tank Larry Dolamore 2 9234 Sunday, May 2, 2010 1:28 PM 
Bar screen upstream level sensor Larry Dolamore 2 9029 Friday, May 28, 2010 5:15 PM 
excessive dark foam on aeration tanks Mark 3 8940 Tuesday, April 5, 2011 11:33 AM 
grey slime in trickling filters & SBRs Todd Boling 0 8902 Saturday, May 1, 2010 4:19 PM 
Primary clarifier chain Chris 4 8558 Sunday, November 13, 2011 11:02 PM 
SCADA advice needed Dennis Hudson 4 8374 Thursday, October 28, 2010 3:54 PM 
very low SVIs!! Deb 5 8373 Monday, November 29, 2010 5:55 PM 
Request for info regarding Trojan UV systems T.O.C. 5 8233 Friday, August 10, 2012 2:22 PM 
ORP control Mark Milne 2 8177 Friday, November 25, 2011 1:57 AM 
Where to sell New Surplus Siemens Clarifier Drive ? surplusbuyer 1 8129 Saturday, July 24, 2010 1:33 PM 
Outfall Shorezone Protection T. Butler 1 8081 Wednesday, March 17, 2010 12:14 PM 
Flow verification James Royer 2 8045 Monday, October 25, 2010 12:34 PM 
WASTEWATER MICROBIOLOGY & PROCESS CONTROL CLASS Terry 2 8005 Monday, August 8, 2011 1:17 PM 
managing activated sludge system during food shortage John Wang 2 7970 Wednesday, July 6, 2011 9:24 AM 
transportation of dewatered alum sludge Doctor Sewage 0 7768 Monday, August 2, 2010 3:55 AM 
SBR Omniflow Jerry 0 7673 Thursday, August 26, 2010 3:34 PM 
Oxidation Ditch Structural Assesment watertech 1 7528 Wednesday, September 22, 2010 2:15 PM 
aerobic-anoxic operation ale 0 7181 Sunday, November 14, 2010 2:04 AM 
Frozen tank Deerfield Wastewater 1 7049 Sunday, November 13, 2011 11:01 PM 
Caroling Sewermen Victor Santa Cruz 0 6956 Wednesday, December 29, 2010 1:44 PM 
W3QLAS Activated Sludge Process Control Workshop Victor Santa Cruz 0 6650 Thursday, January 21, 2010 8:23 PM 
Wastewater operator training opportunity at Wausau, Wisconsin February 1, 2011. Terry 0 6641 Wednesday, January 5, 2011 9:15 AM 
MBR sludge condition Elizabeth Lawrence 4 6386 Tuesday, March 22, 2011 10:29 PM 
High COD Results evik 1 6309 Thursday, February 24, 2011 9:13 AM 
Free webinar: pharmaceutical disposal and preventing pollution NRWA CW 1 6252 Tuesday, May 17, 2011 11:14 AM 
Pump Mixing Systems Anaerobic Digesters Christopher Morphey 0 6183 Tuesday, May 24, 2011 10:55 AM 
Lost of pressure Chief 8 6118 Tuesday, March 15, 2011 7:02 AM 
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