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 14257 Sunday, November 13, 2011 11:03 PM 
Seasonal MLSS adjustment Joseph McDowell 2 17700 Sunday, April 11, 2010 2:01 PM 
managing activated sludge system during food shortage John Wang 2 10662 Wednesday, July 6, 2011 9:24 AM 
envirofilt JK 0 6757 Sunday, December 11, 2011 6:52 PM 
aerobic digester-very high solids-odor problem jim 4 14726 Sunday, May 16, 2010 5:13 PM 
SBR Omniflow Jerry 0 10142 Thursday, August 26, 2010 3:34 PM 
floating sludge problem JC 1 12353 Saturday, April 24, 2010 6:42 PM 
Mercury Control Jason Graham 0 6815 Tuesday, November 29, 2011 2:09 PM 
Flow verification James Royer 2 10725 Monday, October 25, 2010 12:34 PM 
Determining the settlement tank's volume Hajar 0 6591 Tuesday, September 25, 2012 7:55 PM 
tank numbering h2ochem 1 8232 Sunday, June 26, 2011 1:22 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 11056 Sunday, November 13, 2011 11:00 PM 
salinity in activated sludge Greg Gress 2 8853 Thursday, June 14, 2012 5:21 AM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 7107 Tuesday, November 22, 2011 3:30 PM 
Wastewater Blog Grant Weaver 5 14153 Monday, May 7, 2012 4:15 AM 
Digester Gas Piping GB Gehrke 6 12930 Wednesday, November 23, 2011 7:45 AM 
Septage/Grease Screening Units Frederick Auermuller 0 6616 Tuesday, January 3, 2012 3:51 PM 
High COD Results evik 1 8817 Thursday, February 24, 2011 9:13 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 2705 Sunday, May 20, 2012 11:25 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 3897 Monday, May 14, 2012 10:44 AM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 3891 Monday, May 14, 2012 10:38 AM 
MBR sludge condition Elizabeth Lawrence 4 9041 Tuesday, March 22, 2011 10:29 PM 
Decanting solds & scum Dwayne 1 10188 Friday, June 19, 2015 6:28 AM 
WWTP Opportunity - City of Kuna, ID DPFG 0 6746 Tuesday, September 4, 2012 12:17 PM 
transportation of dewatered alum sludge Doctor Sewage 0 10205 Monday, August 2, 2010 3:55 AM 
SCADA advice needed Dennis Hudson 4 10959 Thursday, October 28, 2010 3:54 PM 
Frozen tank Deerfield Wastewater 1 9671 Sunday, November 13, 2011 11:01 PM 
color codes for equipment and pipes deepleveltrash 1 12948 Wednesday, March 31, 2010 4:38 PM 
very low SVIs!! Deb 5 10900 Monday, November 29, 2010 5:55 PM 
Toxicity of Sanitizers/Commercial Cleaners David Allen 0 6309 Thursday, November 10, 2011 5:01 PM 
Quaternary Ammonium Compounds David Allen 3 15037 Monday, July 11, 2011 3:05 PM 
chemical phosphorus removal using alum david 1 8090 Thursday, April 7, 2011 1:54 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 4191 Friday, August 10, 2012 2:18 PM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 3957 Tuesday, June 26, 2012 9:52 AM 
P.H. Problems D.Mak 6 12498 Wednesday, September 21, 2011 7:27 AM 
BNR Internal Recycle Cooper 0 12111 Wednesday, January 28, 2015 8:27 PM 
Pump Mixing Systems Anaerobic Digesters Christopher Morphey 0 8898 Tuesday, May 24, 2011 10:55 AM 
Primary clarifier chain Chris 4 11422 Sunday, November 13, 2011 11:02 PM 
Lost of pressure Chief 8 8597 Tuesday, March 15, 2011 7:02 AM 
reduction of flows cb 2 13631 Wednesday, January 27, 2010 9:24 AM 
High fecal coliform results Carmine Goneconte 7 13627 Sunday, November 13, 2011 10:59 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 14716 Sunday, April 3, 2011 6:07 AM 
Using Mag Hydroxide Andres Vinent 3 3862 Monday, June 25, 2012 1:17 PM 
Alkalinity control Andres Vinent 0 6187 Tuesday, February 21, 2012 3:51 PM 
aerobic-anoxic operation ale 0 12119 Sunday, November 14, 2010 2:04 AM 
Ozone for Fecal Coliform Reduction 17633991 0 3982 Sunday, April 14, 2013 6:36 PM 
pH of Mixed Liquor 17627563 0 3840 Monday, December 31, 2012 11:10 AM 
Isopropanol issues 01797999 1 7056 Tuesday, August 28, 2012 2:38 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 6373 Wednesday, October 17, 2012 5:35 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 5072 Tuesday, October 16, 2012 9:55 PM 
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