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
MBR sludge condition Elizabeth Lawrence 4 6190 Tuesday, March 22, 2011 10:29 PM 
MBBR Media Tatya Tope 2 4922 Thursday, October 27, 2011 4:03 PM 
managing activated sludge system during food shortage John Wang 2 7747 Wednesday, July 6, 2011 9:24 AM 
Lost of pressure Chief 8 5894 Tuesday, March 15, 2011 7:02 AM 
Log Sheet Data Rock 1 997 Tuesday, June 12, 2012 1:37 PM 
Lining stainless steel air pipe Larry Dolamore 0 5099 Monday, June 27, 2011 9:13 AM 
Isopropanol issues 01797999 1 3098 Tuesday, August 28, 2012 2:38 PM 
In line nutrient monitoring mford 1 5670 Wednesday, July 6, 2011 9:16 AM 
High Influent Sulfates Randy Siddens 0 4654 Tuesday, August 30, 2011 11:45 AM 
High fecal coliform results Carmine Goneconte 7 9712 Sunday, November 13, 2011 10:59 PM 
High DO in Lagoons Kit Roush 2 3292 Tuesday, June 19, 2012 12:38 PM 
High COD Results evik 1 6083 Thursday, February 24, 2011 9:13 AM 
head loss at air diffused system Tiger 1 9762 Monday, July 5, 2010 11:55 AM 
grey slime in trickling filters & SBRs Todd Boling 0 8856 Saturday, May 1, 2010 4:19 PM 
Frozen tank Deerfield Wastewater 1 6836 Sunday, November 13, 2011 11:01 PM 
Free Webinar: The Science of Mixing and Maintaining Water Quality in Water Storage Tanks NRWA Webinar 0 5763 Tuesday, May 17, 2011 2:20 PM 
Free webinar: pharmaceutical disposal and preventing pollution NRWA CW 1 6056 Tuesday, May 17, 2011 11:14 AM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 1139 Sunday, May 20, 2012 11:25 AM 
FOG Causing Primary Clarifier Failures(4) Erwin Bonatz 0 548 Monday, May 14, 2012 10:44 AM 
FOG Causing Primary Clarifier Failures(2) Erwin Bonatz 0 552 Monday, May 14, 2012 10:38 AM 
Flow verification James Royer 2 7828 Monday, October 25, 2010 12:34 PM 
flow meter calibration - that is requires reporting to the regulators? 01782191 0 1390 Tuesday, October 16, 2012 9:55 PM 
flow meter calibration - Requires reporting to the regulators? 01782191 0 2496 Wednesday, October 17, 2012 5:35 PM 
floating sludge problem JC 1 9757 Saturday, April 24, 2010 6:42 PM 
Filiment Problem (O21N) Can't pinpoint the cause...Help. Daniel Knox 0 684 Tuesday, June 26, 2012 9:52 AM 
Ferric Flow Meters? Is it a good idea?(2) 01780074 1 1038 Sunday, April 14, 2013 7:02 PM 
excessive dark foam on aeration tanks Mark 3 8742 Tuesday, April 5, 2011 11:33 AM 
envirofilt JK 0 3377 Sunday, December 11, 2011 6:52 PM 
Energy-Water Nexus and Pumps(2) KVertovec 0 2136 Friday, February 17, 2012 3:16 PM 
Energy-Water Nexus and Pumps KVertovec 0 1811 Friday, February 17, 2012 3:12 PM 
disinfection with paracetic acid mgille 8 12250 Tuesday, July 6, 2010 10:33 AM 
Digester Piping Phosphate Scaling Inspection. Nash 0 2837 Wednesday, November 23, 2011 7:48 AM 
Digester Gas treatment, Sulfa Treat, Eco tec, Jenbacher Richard Roberts 0 5225 Wednesday, August 25, 2010 1:47 PM 
Digester Gas Piping GB Gehrke 6 11093 Wednesday, November 23, 2011 7:45 AM 
Determining the settlement tank's volume Hajar 0 2801 Tuesday, September 25, 2012 7:55 PM 
Dam Odours Nick 0 3805 Tuesday, November 29, 2011 7:24 PM 
color codes for equipment and pipes deepleveltrash 1 9884 Wednesday, March 31, 2010 4:38 PM 
Chlorine survival in activated sludge Jurek 6 11036 Sunday, November 13, 2011 11:03 PM 
chemical phosphorus removal using alum david 1 5321 Thursday, April 7, 2011 1:54 PM 
Chemical Phosphorus Removal Tyrone McCabe 6 12442 Sunday, July 25, 2010 9:08 PM 
Caroling Sewermen Victor Santa Cruz 0 6759 Wednesday, December 29, 2010 1:44 PM 
buried natural gas piping condition assessment T. Butler 1 3596 Tuesday, December 13, 2011 12:08 PM 
Bar screen upstream level sensor Larry Dolamore 2 8802 Friday, May 28, 2010 5:15 PM 
Anaerobic sludge digestion Magnesium hyroxide slug mack72 2 9132 Saturday, November 26, 2011 10:20 AM 
Anaerobic capability Matt Forbes 0 3926 Wednesday, September 7, 2011 11:00 PM 
Alkalinity control Andres Vinent 0 2543 Tuesday, February 21, 2012 3:51 PM 
Affordable trash removal from biosolids Landbiosolid 0 2680 Thursday, February 9, 2012 10:13 AM 
aerobic-anoxic operation ale 0 7031 Sunday, November 14, 2010 2:04 AM 
aerobic digester-very high solids-odor problem jim 4 11679 Sunday, May 16, 2010 5:13 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 11750 Sunday, April 3, 2011 6:07 AM 
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