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I was involved in a large ~ year long design project and I have over 20 years civil engineering, last 10 PM experience. I was asked to be involved with the project and constantly was kept out of the decision process by the PM. I was not the PM on this job. The PM would have early morning...

Has anyone heard of and had experience with a sluice gate manufacturer named Waco Products Incorporated? Any good? It was submitted as a shop drawing for an equal. Thanks! LJ

BIMR brings up a very good point! I got an MS in environmental engineering with a non-engineering BS degree (i.e., geology). I took and passed the EIT, now FE, and also took the PE and passed it. After that I had a difficult time being accepted as an engineer and I also had problems getting...

Have you thought about soft starts and stops on the pump controls? This will minimize or possibly eliminate the pump suddenly stopping and or starting at full speed. Decreasing the possibility of water hammer.

One interesting thing I have noticed is that the influent ammonia concentration is very strong in this type of system.

Has anyone had the experience of giving a cost estimate to their supervisor and then supervisor reduces the amount of the estimate? Then the bids for the work come in and they are over the estimated cost of construction. Anyone else had that experience?

When mentoring younger engineers I usually get them on my project team. I give them general information on the end result that I'm looking for, but let them try and figure it out. To me, and what I personally like, is to figure it out on my own. It's really important to develop a process for...

Try Sika Products.

Try WaterCAD.

You want to plan and implement a pumping test to determine the extent of capture that you can anticipate with your groundwater extraction wells. This will allow you to determine the spacing and numbers of wells. The number and spacing of wells is based on the extent of contamination and to a...

There may not be much, but try the Corps of Engineers or AFCEE. I assume you want to collect data to capture groundwater/free product and use to design some type of treatment system for vapor/liquid treatment with groundwater capture. I have some experience with designing dual phase...

I'm attempting to get P and N removal at an old WWTP and want to reuse the existing basins in rebuilding this plant. Things in pathetic shape. This is a new proposed AeroMOD plant. The old plant's were not well thought out, but the new design seems well thought out. This proposed tank is...

Has anyone have familiarity with biologic phosphorus removal in a anaerobic fermentation tank associated with a WWTP? What equations have you used to calculate amount removed. Assume ~1 hour residence time in tank. I am looking at Equation 15-67 in Manual of Practice # 8 WEF WWT Design. Thanks!

Has anyone have familiarity with biologic phosphorus removal in a anaerobic fermentation tank associated with a WWTP? What equations have you used to calculate amount removed. Assume ~1 hour residence time in tank. I am looking at Equation 15-15 in Manual of Practice # 8 WEF WWT Design. Thanks!