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 16667 Sunday, April 11, 2010 2:01 PM 
Control of algae growth on concrete with coatings? 01490632 0 16328 Tuesday, February 25, 2014 2:17 PM 
Portable Suspended Solids Analyzer 01471237 0 16113 Friday, August 16, 2013 9:42 AM 
Nitrate Lock Extended aeration Paul Robertson 0 16027 Thursday, December 26, 2013 11:19 AM 
Chemical Phosphorus Removal Tyrone McCabe 6 14784 Sunday, July 25, 2010 9:08 PM 
disinfection with paracetic acid mgille 8 14055 Tuesday, July 6, 2010 10:33 AM 
Quaternary Ammonium Compounds David Allen 3 14000 Monday, July 11, 2011 3:05 PM 
aerobic digester-very high solids-odor problem jim 4 13583 Sunday, May 16, 2010 5:13 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 13532 Sunday, April 3, 2011 6:07 AM 
Digester Gas Piping GB Gehrke 6 13247 Wednesday, November 23, 2011 7:45 AM 
Operators Meeting in WI Terry 0 13229 Friday, January 8, 2010 12:20 PM 
Chlorine survival in activated sludge Jurek 6 13065 Sunday, November 13, 2011 11:03 PM 
reduction of flows cb 2 12672 Wednesday, January 27, 2010 9:24 AM 
Alien Bugs(2) 01663302 0 12474 Monday, December 23, 2013 10:09 AM 
Wastewater Blog Grant Weaver 5 12353 Monday, May 7, 2012 4:15 AM 
W3QLAS Anaerobic Digestion/Solids Dewatering Process Control Workshop Victor Santa Cruz 0 12256 Thursday, January 21, 2010 8:24 PM 
High fecal coliform results Carmine Goneconte 7 12077 Sunday, November 13, 2011 10:59 PM 
Polyethylene Glycol Treatability Keith Chapman 1 11656 Friday, November 25, 2011 1:56 AM 
color codes for equipment and pipes deepleveltrash 1 11590 Wednesday, March 31, 2010 4:38 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 11536 Sunday, November 13, 2011 11:00 PM 
head loss at air diffused system Tiger 1 11505 Monday, July 5, 2010 11:55 AM 
Anaerobic sludge digestion Magnesium hyroxide slug mack72 2 11447 Saturday, November 26, 2011 10:20 AM 
floating sludge problem JC 1 11429 Saturday, April 24, 2010 6:42 PM 
P.H. Problems D.Mak 6 11425 Wednesday, September 21, 2011 7:27 AM 
Sand filters Flow rate peak cals..... SHARIFF 1 11231 Tuesday, February 23, 2010 12:45 AM 
trash pump solids handling recommended for mixed liquor Tom Hons 2 11092 Friday, May 28, 2010 3:30 PM 
Request for Spiral Heat Exchanger experience Richard Roberts 0 10920 Monday, March 15, 2010 7:24 AM 
BNR Internal Recycle Cooper 0 10900 Wednesday, January 28, 2015 8:27 PM 
Measuring grit accumulation in a tank Larry Dolamore 2 10790 Sunday, May 2, 2010 1:28 PM 
Bar screen upstream level sensor Larry Dolamore 2 10530 Friday, May 28, 2010 5:15 PM 
excessive dark foam on aeration tanks Mark 3 10514 Tuesday, April 5, 2011 11:33 AM 
grey slime in trickling filters & SBRs Todd Boling 0 10457 Saturday, May 1, 2010 4:19 PM 
Primary clarifier chain Chris 4 10335 Sunday, November 13, 2011 11:02 PM 
Request for info regarding Trojan UV systems T.O.C. 5 10134 Friday, August 10, 2012 2:22 PM 
ORP control Mark Milne 2 10050 Friday, November 25, 2011 1:57 AM 
aerobic-anoxic operation ale 0 10020 Sunday, November 14, 2010 2:04 AM 
SCADA advice needed Dennis Hudson 4 9966 Thursday, October 28, 2010 3:54 PM 
very low SVIs!! Deb 5 9959 Monday, November 29, 2010 5:55 PM 
Where to sell New Surplus Siemens Clarifier Drive ? surplusbuyer 1 9703 Saturday, July 24, 2010 1:33 PM 
WASTEWATER MICROBIOLOGY & PROCESS CONTROL CLASS Terry 2 9670 Monday, August 8, 2011 1:17 PM 
Flow verification James Royer 2 9633 Monday, October 25, 2010 12:34 PM 
Outfall Shorezone Protection T. Butler 1 9617 Wednesday, March 17, 2010 12:14 PM 
managing activated sludge system during food shortage John Wang 2 9534 Wednesday, July 6, 2011 9:24 AM 
transportation of dewatered alum sludge Doctor Sewage 0 9286 Monday, August 2, 2010 3:55 AM 
SBR Omniflow Jerry 0 9209 Thursday, August 26, 2010 3:34 PM 
Oxidation Ditch Structural Assesment watertech 1 9093 Wednesday, September 22, 2010 2:15 PM 
Decanting solds & scum Dwayne 1 8905 Friday, June 19, 2015 6:28 AM 
Frozen tank Deerfield Wastewater 1 8700 Sunday, November 13, 2011 11:01 PM 
Caroling Sewermen Victor Santa Cruz 0 8558 Wednesday, December 29, 2010 1:44 PM 
Wastewater operator training opportunity at Wausau, Wisconsin February 1, 2011. Terry 0 8301 Wednesday, January 5, 2011 9:15 AM 
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