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 15121 Sunday, April 11, 2010 2:01 PM 
Chemical Phosphorus Removal Tyrone McCabe 6 12770 Sunday, July 25, 2010 9:08 PM 
disinfection with paracetic acid mgille 8 12568 Tuesday, July 6, 2010 10:33 AM 
Quaternary Ammonium Compounds David Allen 3 12393 Monday, July 11, 2011 3:05 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 12070 Sunday, April 3, 2011 6:07 AM 
aerobic digester-very high solids-odor problem jim 4 12032 Sunday, May 16, 2010 5:13 PM 
Operators Meeting in WI Terry 0 11693 Friday, January 8, 2010 12:20 PM 
Digester Gas Piping GB Gehrke 6 11506 Wednesday, November 23, 2011 7:45 AM 
Chlorine survival in activated sludge Jurek 6 11417 Sunday, November 13, 2011 11:03 PM 
reduction of flows cb 2 11183 Wednesday, January 27, 2010 9:24 AM 
W3QLAS Anaerobic Digestion/Solids Dewatering Process Control Workshop Victor Santa Cruz 0 10789 Thursday, January 21, 2010 8:24 PM 
High fecal coliform results Carmine Goneconte 7 10180 Sunday, November 13, 2011 10:59 PM 
color codes for equipment and pipes deepleveltrash 1 10143 Wednesday, March 31, 2010 4:38 PM 
Wastewater Blog Grant Weaver 5 10109 Monday, May 7, 2012 4:15 AM 
head loss at air diffused system Tiger 1 10074 Monday, July 5, 2010 11:55 AM 
floating sludge problem JC 1 10048 Saturday, April 24, 2010 6:42 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 10038 Sunday, November 13, 2011 11:00 PM 
Polyethylene Glycol Treatability Keith Chapman 1 9821 Friday, November 25, 2011 1:56 AM 
P.H. Problems D.Mak 6 9802 Wednesday, September 21, 2011 7:27 AM 
Sand filters Flow rate peak cals..... SHARIFF 1 9760 Tuesday, February 23, 2010 12:45 AM 
trash pump solids handling recommended for mixed liquor Tom Hons 2 9677 Friday, May 28, 2010 3:30 PM 
Anaerobic sludge digestion Magnesium hyroxide slug mack72 2 9500 Saturday, November 26, 2011 10:20 AM 
Request for Spiral Heat Exchanger experience Richard Roberts 0 9471 Monday, March 15, 2010 7:24 AM 
Measuring grit accumulation in a tank Larry Dolamore 2 9345 Sunday, May 2, 2010 1:28 PM 
Bar screen upstream level sensor Larry Dolamore 2 9143 Friday, May 28, 2010 5:15 PM 
excessive dark foam on aeration tanks Mark 3 9053 Tuesday, April 5, 2011 11:33 AM 
grey slime in trickling filters & SBRs Todd Boling 0 9014 Saturday, May 1, 2010 4:19 PM 
Primary clarifier chain Chris 4 8719 Sunday, November 13, 2011 11:02 PM 
very low SVIs!! Deb 5 8502 Monday, November 29, 2010 5:55 PM 
SCADA advice needed Dennis Hudson 4 8484 Thursday, October 28, 2010 3:54 PM 
Request for info regarding Trojan UV systems T.O.C. 5 8373 Friday, August 10, 2012 2:22 PM 
ORP control Mark Milne 2 8339 Friday, November 25, 2011 1:57 AM 
Where to sell New Surplus Siemens Clarifier Drive ? surplusbuyer 1 8241 Saturday, July 24, 2010 1:33 PM 
Outfall Shorezone Protection T. Butler 1 8197 Wednesday, March 17, 2010 12:14 PM 
Flow verification James Royer 2 8162 Monday, October 25, 2010 12:34 PM 
WASTEWATER MICROBIOLOGY & PROCESS CONTROL CLASS Terry 2 8127 Monday, August 8, 2011 1:17 PM 
managing activated sludge system during food shortage John Wang 2 8087 Wednesday, July 6, 2011 9:24 AM 
transportation of dewatered alum sludge Doctor Sewage 0 7881 Monday, August 2, 2010 3:55 AM 
SBR Omniflow Jerry 0 7780 Thursday, August 26, 2010 3:34 PM 
Oxidation Ditch Structural Assesment watertech 1 7648 Wednesday, September 22, 2010 2:15 PM 
aerobic-anoxic operation ale 0 7314 Sunday, November 14, 2010 2:04 AM 
Frozen tank Deerfield Wastewater 1 7199 Sunday, November 13, 2011 11:01 PM 
Portable Suspended Solids Analyzer 01471237 0 7189 Friday, August 16, 2013 9:42 AM 
Caroling Sewermen Victor Santa Cruz 0 7068 Wednesday, December 29, 2010 1:44 PM 
W3QLAS Activated Sludge Process Control Workshop Victor Santa Cruz 0 6778 Thursday, January 21, 2010 8:23 PM 
Wastewater operator training opportunity at Wausau, Wisconsin February 1, 2011. Terry 0 6747 Wednesday, January 5, 2011 9:15 AM 
MBR sludge condition Elizabeth Lawrence 4 6504 Tuesday, March 22, 2011 10:29 PM 
High COD Results evik 1 6422 Thursday, February 24, 2011 9:13 AM 
Free webinar: pharmaceutical disposal and preventing pollution NRWA CW 1 6362 Tuesday, May 17, 2011 11:14 AM 
Nitrate Lock Extended aeration Paul Robertson 0 6360 Thursday, December 26, 2013 11:19 AM 
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