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
Chlorine survival in activated sludge Jurek 6 16442 Sunday, November 13, 2011 11:03 PM 
Seasonal MLSS adjustment Joseph McDowell 2 19731 Sunday, April 11, 2010 2:01 PM 
managing activated sludge system during food shortage John Wang 2 9574 Wednesday, July 6, 2011 9:24 AM 
envirofilt JK 0 8767 Sunday, December 11, 2011 6:52 PM 
aerobic digester-very high solids-odor problem jim 4 16826 Sunday, May 16, 2010 5:13 PM 
SBR Omniflow Jerry 0 12069 Thursday, August 26, 2010 3:34 PM 
floating sludge problem JC 1 14277 Saturday, April 24, 2010 6:42 PM 
Mercury Control Jason Graham 0 8868 Tuesday, November 29, 2011 2:09 PM 
Flow verification James Royer 2 12844 Monday, October 25, 2010 12:34 PM 
Determining the settlement tank's volume Hajar 0 8661 Tuesday, September 25, 2012 7:55 PM 
tank numbering h2ochem 1 10114 Sunday, June 26, 2011 1:22 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 13220 Sunday, November 13, 2011 11:00 PM 
salinity in activated sludge Greg Gress 2 10928 Thursday, June 14, 2012 5:21 AM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 9332 Tuesday, November 22, 2011 3:30 PM 
Wastewater Blog Grant Weaver 5 17846 Monday, May 7, 2012 4:15 AM 
Digester Gas Piping GB Gehrke 6 15277 Wednesday, November 23, 2011 7:45 AM 
Septage/Grease Screening Units Frederick Auermuller 0 8654 Tuesday, January 3, 2012 3:51 PM 
High COD Results evik 1 10761 Thursday, February 24, 2011 9:13 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 4793 Sunday, May 20, 2012 11:25 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 6004 Monday, May 14, 2012 10:44 AM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 5930 Monday, May 14, 2012 10:38 AM 
MBR sludge condition Elizabeth Lawrence 4 11077 Tuesday, March 22, 2011 10:29 PM 
Decanting solds & scum Dwayne 1 12426 Friday, June 19, 2015 6:28 AM 
WWTP Opportunity - City of Kuna, ID DPFG 0 8947 Tuesday, September 4, 2012 12:17 PM 
transportation of dewatered alum sludge Doctor Sewage 0 12087 Monday, August 2, 2010 3:55 AM 
SCADA advice needed Dennis Hudson 4 12979 Thursday, October 28, 2010 3:54 PM 
Frozen tank Deerfield Wastewater 1 11557 Sunday, November 13, 2011 11:01 PM 
color codes for equipment and pipes deepleveltrash 1 15374 Wednesday, March 31, 2010 4:38 PM 
very low SVIs!! Deb 5 12943 Monday, November 29, 2010 5:55 PM 
Toxicity of Sanitizers/Commercial Cleaners David Allen 0 8224 Thursday, November 10, 2011 5:01 PM 
Quaternary Ammonium Compounds David Allen 3 16978 Monday, July 11, 2011 3:05 PM 
chemical phosphorus removal using alum david 1 10017 Thursday, April 7, 2011 1:54 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 6265 Friday, August 10, 2012 2:18 PM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 5946 Tuesday, June 26, 2012 9:52 AM 
P.H. Problems D.Mak 6 14557 Wednesday, September 21, 2011 7:27 AM 
BNR Internal Recycle Cooper 0 14267 Wednesday, January 28, 2015 8:27 PM 
Pump Mixing Systems Anaerobic Digesters Christopher Morphey 0 10813 Tuesday, May 24, 2011 10:55 AM 
Primary clarifier chain Chris 4 13592 Sunday, November 13, 2011 11:02 PM 
Lost of pressure Chief 8 10623 Tuesday, March 15, 2011 7:02 AM 
reduction of flows cb 2 15603 Wednesday, January 27, 2010 9:24 AM 
High fecal coliform results Carmine Goneconte 7 15562 Sunday, November 13, 2011 10:59 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 17057 Sunday, April 3, 2011 6:07 AM 
Using Mag Hydroxide Andres Vinent 3 5854 Monday, June 25, 2012 1:17 PM 
Alkalinity control Andres Vinent 0 8172 Tuesday, February 21, 2012 3:51 PM 
aerobic-anoxic operation ale 0 14233 Sunday, November 14, 2010 2:04 AM 
Ozone for Fecal Coliform Reduction 17633991 0 6181 Sunday, April 14, 2013 6:36 PM 
pH of Mixed Liquor 17627563 0 5960 Monday, December 31, 2012 11:10 AM 
Isopropanol issues 01797999 1 9077 Tuesday, August 28, 2012 2:38 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 8492 Wednesday, October 17, 2012 5:35 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 7200 Tuesday, October 16, 2012 9:55 PM 
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