×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Organic Layer Surface Detection

Organic Layer Surface Detection

Organic Layer Surface Detection

(OP)
We have a waste water tank where we want to detect the surface interface between the water, on the bottom of the tank volume, and the Organic Layer, on the top of the water.

We know the organics, but do not know what percentage of each is there.

Currently, we have a radar gauge, but it's only reading the top surface.

My first thought is a float that will 'sit' between the layers.  We know the specific gravity of water, so we should be able to do that.  However, if we already have non contact radar, it'd be nice for something non-contacting.

My second thought is to insert a water detector in the side of the vessel.  We really aren't concerned about the actual level of the interface.  Our concern is that it does not drop below our outlet that goes to our oxidizer.  Is there such a device?

Is it possible that radar can read this interface?  Ultrasonic?  Any recommendations for sensing the interface?

______________________________________________________________________________
This is normally the space where people post something insightful.

RE: Organic Layer Surface Detection

What is the "organic" ? Can you give some specifications
for ranges, accuracies etc.?

<nbucska@pc33peripherals.com> omit 33 Use subj: ENG-TIPS
Plesae read FAQ240-1032

RE: Organic Layer Surface Detection

(OP)
organics will be:

Methanol
Formaldahyde
Phenol
Glycols: Ethylen Glycol, Propylene Glycol mainly
Possibly some acids

Methanol will be in the water... possibly up to 30% at times.

______________________________________________________________________________
This is normally the space where people post something insightful.

RE: Organic Layer Surface Detection

Allmost all of these has unlimited solubility in H2O-
except phenol may be limited ( if I remember correctly)

If you want to measure dissolved organics, itis a completly different task.

<nbucska@pc33peripherals.com> omit 33 Use subj: ENG-TIPS
Plesae read FAQ240-1032

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources