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 

RSS Feed Search
Operation and Maintenance
  Topics Topic Starter Replies Views Last Post
Seasonal MLSS adjustment Joseph McDowell 2 15176 Sunday, April 11, 2010 2:01 PM 
managing activated sludge system during food shortage John Wang 2 8141 Wednesday, July 6, 2011 9:24 AM 
envirofilt JK 0 3850 Sunday, December 11, 2011 6:52 PM 
aerobic digester-very high solids-odor problem jim 4 12083 Sunday, May 16, 2010 5:13 PM 
SBR Omniflow Jerry 0 7812 Thursday, August 26, 2010 3:34 PM 
floating sludge problem JC 1 10101 Saturday, April 24, 2010 6:42 PM 
Mercury Control Jason Graham 0 3888 Tuesday, November 29, 2011 2:09 PM 
Flow verification James Royer 2 8229 Monday, October 25, 2010 12:34 PM 
Determining the settlement tank's volume Hajar 0 3872 Tuesday, September 25, 2012 7:55 PM 
tank numbering h2ochem 1 5873 Sunday, June 26, 2011 1:22 PM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 10044 Sunday, November 13, 2011 11:00 PM 
salinity in activated sludge Greg Gress 2 4888 Thursday, June 14, 2012 5:21 AM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 4234 Tuesday, November 22, 2011 3:30 PM 
Wastewater Blog Grant Weaver 5 10138 Monday, May 7, 2012 4:15 AM 
Digester Gas Piping GB Gehrke 6 11549 Wednesday, November 23, 2011 7:45 AM 
Septage/Grease Screening Units Frederick Auermuller 0 3719 Tuesday, January 3, 2012 3:51 PM 
High COD Results evik 1 6459 Thursday, February 24, 2011 9:13 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 1580 Sunday, May 20, 2012 11:25 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 1042 Monday, May 14, 2012 10:44 AM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 1005 Monday, May 14, 2012 10:38 AM 
MBR sludge condition Elizabeth Lawrence 4 6564 Tuesday, March 22, 2011 10:29 PM 
WWTP Opportunity - City of Kuna, ID DPFG 0 3762 Tuesday, September 4, 2012 12:17 PM 
transportation of dewatered alum sludge Doctor Sewage 0 7917 Monday, August 2, 2010 3:55 AM 
SCADA advice needed Dennis Hudson 4 8543 Thursday, October 28, 2010 3:54 PM 
Frozen tank Deerfield Wastewater 1 7219 Sunday, November 13, 2011 11:01 PM 
color codes for equipment and pipes deepleveltrash 1 10212 Wednesday, March 31, 2010 4:38 PM 
very low SVIs!! Deb 5 8538 Monday, November 29, 2010 5:55 PM 
Toxicity of Sanitizers/Commercial Cleaners David Allen 0 3793 Thursday, November 10, 2011 5:01 PM 
Quaternary Ammonium Compounds David Allen 3 12446 Monday, July 11, 2011 3:05 PM 
chemical phosphorus removal using alum david 1 5706 Thursday, April 7, 2011 1:54 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 1220 Friday, August 10, 2012 2:18 PM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 1163 Tuesday, June 26, 2012 9:52 AM 
P.H. Problems D.Mak 6 9890 Wednesday, September 21, 2011 7:27 AM 
Pump Mixing Systems Anaerobic Digesters Christopher Morphey 0 6318 Tuesday, May 24, 2011 10:55 AM 
Primary clarifier chain Chris 4 8797 Sunday, November 13, 2011 11:02 PM 
Lost of pressure Chief 8 6261 Tuesday, March 15, 2011 7:02 AM 
reduction of flows cb 2 11243 Wednesday, January 27, 2010 9:24 AM 
High fecal coliform results Carmine Goneconte 7 10262 Sunday, November 13, 2011 10:59 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 12119 Sunday, April 3, 2011 6:07 AM 
Using Mag Hydroxide Andres Vinent 3 2710 Monday, June 25, 2012 1:17 PM 
Alkalinity control Andres Vinent 0 2970 Tuesday, February 21, 2012 3:51 PM 
aerobic-anoxic operation ale 0 7337 Sunday, November 14, 2010 2:04 AM 
Ozone for Fecal Coliform Reduction 17633991 0 1179 Sunday, April 14, 2013 6:36 PM 
pH of Mixed Liquor 17627563 0 2742 Monday, December 31, 2012 11:10 AM 
Isopropanol issues 01797999 1 4180 Tuesday, August 28, 2012 2:38 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 3571 Wednesday, October 17, 2012 5:35 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 2325 Tuesday, October 16, 2012 9:55 PM 
Ferric Flow Meters? Is it a good idea?(2) 01780074 1 2169 Sunday, April 14, 2013 7:02 PM 
Alien Bugs(2) 01663302 0 4355 Monday, December 23, 2013 10:09 AM 
Oxidation ditch 01645290 0 3282 Thursday, November 29, 2012 10:24 AM 
 Previous 1 2 3 Next