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 15180 Sunday, April 11, 2010 2:01 PM 
managing activated sludge system during food shortage John Wang 2 8170 Wednesday, July 6, 2011 9:24 AM 
envirofilt JK 0 3856 Sunday, December 11, 2011 6:52 PM 
aerobic digester-very high solids-odor problem jim 4 12133 Sunday, May 16, 2010 5:13 PM 
SBR Omniflow Jerry 0 7836 Thursday, August 26, 2010 3:34 PM 
floating sludge problem JC 1 10172 Saturday, April 24, 2010 6:42 PM 
Mercury Control Jason Graham 0 4081 Tuesday, November 29, 2011 2:09 PM 
Flow verification James Royer 2 8215 Monday, October 25, 2010 12:34 PM 
Determining the settlement tank's volume Hajar 0 3920 Tuesday, September 25, 2012 7:55 PM 
tank numbering h2ochem 1 5944 Sunday, June 26, 2011 1:22 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 10133 Sunday, November 13, 2011 11:00 PM 
salinity in activated sludge Greg Gress 2 4939 Thursday, June 14, 2012 5:21 AM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 4247 Tuesday, November 22, 2011 3:30 PM 
Wastewater Blog Grant Weaver 5 10215 Monday, May 7, 2012 4:15 AM 
Digester Gas Piping GB Gehrke 6 11712 Wednesday, November 23, 2011 7:45 AM 
Septage/Grease Screening Units Frederick Auermuller 0 3793 Tuesday, January 3, 2012 3:51 PM 
High COD Results evik 1 6499 Thursday, February 24, 2011 9:13 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 1620 Sunday, May 20, 2012 11:25 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 1049 Monday, May 14, 2012 10:44 AM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 1188 Monday, May 14, 2012 10:38 AM 
MBR sludge condition Elizabeth Lawrence 4 6590 Tuesday, March 22, 2011 10:29 PM 
Decanting solds & scum Dwayne 1 697 Friday, June 19, 2015 6:28 AM 
WWTP Opportunity - City of Kuna, ID DPFG 0 3913 Tuesday, September 4, 2012 12:17 PM 
transportation of dewatered alum sludge Doctor Sewage 0 7962 Monday, August 2, 2010 3:55 AM 
SCADA advice needed Dennis Hudson 4 8567 Thursday, October 28, 2010 3:54 PM 
Frozen tank Deerfield Wastewater 1 7290 Sunday, November 13, 2011 11:01 PM 
color codes for equipment and pipes deepleveltrash 1 10222 Wednesday, March 31, 2010 4:38 PM 
very low SVIs!! Deb 5 8575 Monday, November 29, 2010 5:55 PM 
Toxicity of Sanitizers/Commercial Cleaners David Allen 0 3854 Thursday, November 10, 2011 5:01 PM 
Quaternary Ammonium Compounds David Allen 3 12585 Monday, July 11, 2011 3:05 PM 
chemical phosphorus removal using alum david 1 5765 Thursday, April 7, 2011 1:54 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 1254 Friday, August 10, 2012 2:18 PM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 1283 Tuesday, June 26, 2012 9:52 AM 
P.H. Problems D.Mak 6 10046 Wednesday, September 21, 2011 7:27 AM 
BNR Internal Recycle Cooper 0 3574 Wednesday, January 28, 2015 8:27 PM 
Pump Mixing Systems Anaerobic Digesters Christopher Morphey 0 6394 Tuesday, May 24, 2011 10:55 AM 
Primary clarifier chain Chris 4 8832 Sunday, November 13, 2011 11:02 PM 
Lost of pressure Chief 8 6376 Tuesday, March 15, 2011 7:02 AM 
reduction of flows cb 2 11277 Wednesday, January 27, 2010 9:24 AM 
High fecal coliform results Carmine Goneconte 7 10317 Sunday, November 13, 2011 10:59 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 12135 Sunday, April 3, 2011 6:07 AM 
Using Mag Hydroxide Andres Vinent 3 2771 Monday, June 25, 2012 1:17 PM 
Alkalinity control Andres Vinent 0 3024 Tuesday, February 21, 2012 3:51 PM 
aerobic-anoxic operation ale 0 7524 Sunday, November 14, 2010 2:04 AM 
Ozone for Fecal Coliform Reduction 17633991 0 1305 Sunday, April 14, 2013 6:36 PM 
pH of Mixed Liquor 17627563 0 2832 Monday, December 31, 2012 11:10 AM 
Isopropanol issues 01797999 1 4237 Tuesday, August 28, 2012 2:38 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 3610 Wednesday, October 17, 2012 5:35 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 2354 Tuesday, October 16, 2012 9:55 PM 
Ferric Flow Meters? Is it a good idea?(2) 01780074 1 2215 Sunday, April 14, 2013 7:02 PM 
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