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
Grit pipeline and with pinch valves sandra 0 3336 Wednesday, April 13, 2016 12:21 PM 
Use of Larvacides for midge fly control 01632316 0 3920 Tuesday, December 22, 2015 11:19 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 4832 Sunday, May 20, 2012 11:25 AM 
Water Fleas!!!(2) 01474775 0 5214 Wednesday, May 8, 2013 10:41 AM 
Ferric Flow Meters? Is it a good idea?(2) 01780074 1 5327 Sunday, April 14, 2013 7:02 PM 
ski resort WWTP operation 01463964 0 5825 Friday, August 10, 2012 2:24 PM 
Using Mag Hydroxide Andres Vinent 3 5903 Monday, June 25, 2012 1:17 PM 
Overheating wires with WEDECO UV system 01453718 0 5925 Tuesday, August 7, 2012 2:46 PM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 5979 Monday, May 14, 2012 10:38 AM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 5986 Tuesday, June 26, 2012 9:52 AM 
pH of Mixed Liquor 17627563 0 6005 Monday, December 31, 2012 11:10 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 6045 Monday, May 14, 2012 10:44 AM 
Ozone for Fecal Coliform Reduction 17633991 0 6217 Sunday, April 14, 2013 6:36 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 6310 Friday, August 10, 2012 2:18 PM 
Log Sheet Data Rock 1 6414 Tuesday, June 12, 2012 1:37 PM 
RAS lines and clarifier balancing R Siddens 1 6852 Thursday, February 2, 2012 5:17 AM 
Energy-Water Nexus and Pumps KVertovec 0 7142 Friday, February 17, 2012 3:12 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 7237 Tuesday, October 16, 2012 9:55 PM 
Ocean Outfall assessment 01607899 0 7467 Wednesday, January 9, 2013 3:51 PM 
Energy-Water Nexus and Pumps(2) KVertovec 0 7521 Friday, February 17, 2012 3:16 PM 
Affordable trash removal from biosolids Landbiosolid 0 8008 Thursday, February 9, 2012 10:13 AM 
Digester Piping Phosphate Scaling Inspection. Nash 0 8192 Wednesday, November 23, 2011 7:48 AM 
Alkalinity control Andres Vinent 0 8218 Tuesday, February 21, 2012 3:51 PM 
Oxidation ditch 01645290 0 8255 Thursday, November 29, 2012 10:24 AM 
Toxicity of Sanitizers/Commercial Cleaners David Allen 0 8260 Thursday, November 10, 2011 5:01 PM 
Trash Racks before Parkson Screens? L Cipparone 1 8385 Sunday, October 9, 2011 7:23 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 8533 Wednesday, October 17, 2012 5:35 PM 
2011 Southern Oregon Water and Wastewater Short School Victor Santa Cruz 0 8678 Tuesday, August 23, 2011 8:01 PM 
Septage/Grease Screening Units Frederick Auermuller 0 8689 Tuesday, January 3, 2012 3:51 PM 
Determining the settlement tank's volume Hajar 0 8703 Tuesday, September 25, 2012 7:55 PM 
High DO in Lagoons Kit Roush 2 8780 Tuesday, June 19, 2012 12:38 PM 
envirofilt JK 0 8811 Sunday, December 11, 2011 6:52 PM 
Operations help Victoria Caulfield 1 8841 Friday, May 4, 2012 11:10 AM 
Mercury Control Jason Graham 0 8906 Tuesday, November 29, 2011 2:09 PM 
WWTP Opportunity - City of Kuna, ID DPFG 0 8985 Tuesday, September 4, 2012 12:17 PM 
Dam Odours Nick 0 9025 Tuesday, November 29, 2011 7:24 PM 
Isopropanol issues 01797999 1 9118 Tuesday, August 28, 2012 2:38 PM 
Reseeding Nitrification/Denitrification Oxidation ditch Shannon Taylor 1 9146 Friday, August 19, 2011 10:46 AM 
Anaerobic capability Matt Forbes 0 9148 Wednesday, September 7, 2011 11:00 PM 
High Influent Sulfates Randy Siddens 0 9151 Tuesday, August 30, 2011 11:45 AM 
Why effluent clears-up after interruption of aeration? Jurek Patoczka 1 9315 Sunday, October 9, 2011 7:34 PM 
buried natural gas piping condition assessment T. Butler 1 9363 Tuesday, December 13, 2011 12:08 PM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 9376 Tuesday, November 22, 2011 3:30 PM 
managing activated sludge system during food shortage John Wang 2 9612 Wednesday, July 6, 2011 9:24 AM 
Lining stainless steel air pipe Larry Dolamore 0 9673 Monday, June 27, 2011 9:13 AM 
MBBR Media Tatya Tope 2 9825 Thursday, October 27, 2011 4:03 PM 
Digester Gas treatment, Sulfa Treat, Eco tec, Jenbacher Richard Roberts 0 9851 Wednesday, August 25, 2010 1:47 PM 
chemical phosphorus removal using alum david 1 10053 Thursday, April 7, 2011 1:54 PM 
grey slime in trickling filters & SBRs Todd Boling 0 10110 Saturday, May 1, 2010 4:19 PM 
tank numbering h2ochem 1 10143 Sunday, June 26, 2011 1:22 PM 
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