Waste water sump atmospheric pipe height enhancement

[tsaran1976]

we have a waste water underground enclosed concrete sump having 8" atmospheric vent. Currently we have 20ppm Benzene emission through this vent. Presently this Benzene is making smell around sump area. We plan to increase the current vent height from 3m to 10m. will it reduce the smell around the sump area.The maximum flow through the vent is ~ 2500m3/hr

 

[Longinthetooth]

I dont know your location, but I am amazed that the Environmental authorities are letting you get away with venting 2500 m3/h with 20 ppm benzene. This is a well documented carcinogen with very low exposure limits.

 

[bimr]

The problem is that the odor threshold is quite low.

It probably will not work.

 

[chicopee]

I think that this problem is occuring outside the USA, therefore, gorget about Environmental regulations.

 

[RaRo]

Is that a venting flowrate or do you just have priming from the sump? If its a 'ventilated' sump, that's ca. 0.15kg/h you are venting - 1.4t/yr if the source is continuous. It might be interesting to try and recover it especially if you have environmental and health regulations (or ethics!) in place that would require you to treat that effluent.

If you just have priming, a good way to eliminate the odor would be disposable activated carbon plug on your vent.

 

[jackboyz]

yes, it will reduce the odor around the sump area.
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