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
Lost of pressure Chief 8 6265 Tuesday, March 15, 2011 7:02 AM 
disinfection with paracetic acid mgille 8 12620 Tuesday, July 6, 2010 10:33 AM 
High fecal coliform results Carmine Goneconte 7 10313 Sunday, November 13, 2011 10:59 PM 
P.H. Problems D.Mak 6 9936 Wednesday, September 21, 2011 7:27 AM 
Digester Gas Piping GB Gehrke 6 11545 Wednesday, November 23, 2011 7:45 AM 
Chlorine survival in activated sludge Jurek 6 11543 Sunday, November 13, 2011 11:03 PM 
Chemical Phosphorus Removal Tyrone McCabe 6 12810 Sunday, July 25, 2010 9:08 PM 
Request for info regarding Trojan UV systems T.O.C. 5 8418 Friday, August 10, 2012 2:22 PM 
very low SVIs!! Deb 5 8540 Monday, November 29, 2010 5:55 PM 
Wastewater Blog Grant Weaver 5 10216 Monday, May 7, 2012 4:15 AM 
MBR sludge condition Elizabeth Lawrence 4 6538 Tuesday, March 22, 2011 10:29 PM 
SCADA advice needed Dennis Hudson 4 8571 Thursday, October 28, 2010 3:54 PM 
Primary clarifier chain Chris 4 8771 Sunday, November 13, 2011 11:02 PM 
aerobic digester-very high solids-odor problem jim 4 12074 Sunday, May 16, 2010 5:13 PM 
Using Mag Hydroxide Andres Vinent 3 2733 Monday, June 25, 2012 1:17 PM 
Quaternary Ammonium Compounds David Allen 3 12454 Monday, July 11, 2011 3:05 PM 
excessive dark foam on aeration tanks Mark 3 9095 Tuesday, April 5, 2011 11:33 AM 
Precipitation in bulk storage tank for sodium hypochlorite? GSain 3 10060 Sunday, November 13, 2011 11:00 PM 
High DO in Lagoons Kit Roush 2 3796 Tuesday, June 19, 2012 12:38 PM 
MBBR Media Tatya Tope 2 5310 Thursday, October 27, 2011 4:03 PM 
salinity in activated sludge Greg Gress 2 4921 Thursday, June 14, 2012 5:21 AM 
WASTEWATER MICROBIOLOGY & PROCESS CONTROL CLASS Terry 2 8204 Monday, August 8, 2011 1:17 PM 
managing activated sludge system during food shortage John Wang 2 8139 Wednesday, July 6, 2011 9:24 AM 
Flow verification James Royer 2 8198 Monday, October 25, 2010 12:34 PM 
ORP control Mark Milne 2 8378 Friday, November 25, 2011 1:57 AM 
Anaerobic sludge digestion Magnesium hyroxide slug mack72 2 9551 Saturday, November 26, 2011 10:20 AM 
Bar screen upstream level sensor Larry Dolamore 2 9213 Friday, May 28, 2010 5:15 PM 
trash pump solids handling recommended for mixed liquor Tom Hons 2 9714 Friday, May 28, 2010 3:30 PM 
Activated sludge process -WAS claculation Azmathulla Zaffrulla 2 12151 Sunday, April 3, 2011 6:07 AM 
Measuring grit accumulation in a tank Larry Dolamore 2 9400 Sunday, May 2, 2010 1:28 PM 
reduction of flows cb 2 11220 Wednesday, January 27, 2010 9:24 AM 
Seasonal MLSS adjustment Joseph McDowell 2 15173 Sunday, April 11, 2010 2:01 PM 
Ferric Flow Meters? Is it a good idea?(2) 01780074 1 2190 Sunday, April 14, 2013 7:02 PM 
Isopropanol issues 01797999 1 4193 Tuesday, August 28, 2012 2:38 PM 
We have a terrible foaming problem in our aerobic digesters DarylP 1 1220 Friday, August 10, 2012 2:18 PM 
Log Sheet Data Rock 1 1470 Tuesday, June 12, 2012 1:37 PM 
FOG Causing Primary Clarifier Failures(5) Erwin Bonatz 1 1575 Sunday, May 20, 2012 11:25 AM 
RAS lines and clarifier balancing R Siddens 1 3521 Thursday, February 2, 2012 5:17 AM 
Operations help Victoria Caulfield 1 4012 Friday, May 4, 2012 11:10 AM 
buried natural gas piping condition assessment T. Butler 1 4042 Tuesday, December 13, 2011 12:08 PM 
Trash Racks before Parkson Screens? L Cipparone 1 3991 Sunday, October 9, 2011 7:23 PM 
Why effluent clears-up after interruption of aeration? Jurek Patoczka 1 4825 Sunday, October 9, 2011 7:34 PM 
VFD control of Mamoth Rotors in Oxidation Ditch Greg Gress 1 4217 Tuesday, November 22, 2011 3:30 PM 
Reseeding Nitrification/Denitrification Oxidation ditch Shannon Taylor 1 4794 Friday, August 19, 2011 10:46 AM 
tank numbering h2ochem 1 5881 Sunday, June 26, 2011 1:22 PM 
Free webinar: pharmaceutical disposal and preventing pollution NRWA CW 1 6398 Tuesday, May 17, 2011 11:14 AM 
In line nutrient monitoring mford 1 6033 Wednesday, July 6, 2011 9:16 AM 
chemical phosphorus removal using alum david 1 5724 Thursday, April 7, 2011 1:54 PM 
Trash(tampons, etc.) problem land application Landbiosolid 1 6027 Tuesday, September 20, 2011 10:06 AM 
High COD Results evik 1 6469 Thursday, February 24, 2011 9:13 AM 
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