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!

*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.

Jobs

Incinerators emissions - dioxins and furans: who knows any portable device for measuring these

Incinerators emissions - dioxins and furans: who knows any portable device for measuring these

Incinerators emissions - dioxins and furans: who knows any portable device for measuring these

(OP)
how are these chemicals measured from incinerator emissions? Any ideas?

RE: Incinerators emissions - dioxins and furans: who knows any portable device for measuring these

There are no portable devices. You have to comply with the "FULL" protocol, that is, pump a given volume of gas into a cartrige containing an adsorbent, after filtration , at a given temperature. In Europe refer to EN 1948 1; If you do not want to do that, then the only reasonable thing is to quickly determine the amount of a surrogate; could be CO -but this is risky-
Other (better) surrogates may be determined by GC-MS methods.
At any rate a calibration is needed , if you want to use surrogates, against the "FULL", standart, referenced method,
The reason is that the relationship between the surrogate and the dioxins is plant-dependant.


In incinerators we use either the "FULL" (EN 1948 in Europe, I think EPA 1613 in USA)", refrence method (3 to 6 hours sampling) + analysis in a lab , using High resolution GC + MS
or semi continous (2 to 4 weeks sampling, then analysis of the cartrige in a lab (high res GV + MS)

Again this is risky. I have followed this topic closely, and, to the best of my knowledge, all attemps to find a simple & cheap way to get at the dioxins have failed, or at least have failed to be of a broad enough usage.

RE: Incinerators emissions - dioxins and furans: who knows any portable device for measuring these

The previous reply goes into pretty good detail. There may be options depending on what you are trying to accomplish by collecting the data.

The US EPA publication AP-42 has published factors that can be used if you need some type of estimate.

US EPA has test methods used to collect complianec-level data. I cannot recall the specific method we use to use but it is not cheap. It's work that a satck sampling company would pretty much have to do if you intend to submit the data to regulatory agencies.

Potentially . . . potentially you could rent a Summa canister from a lab or sampling company and collect the sample for them to analyze. A Summa canister is basically a highly-polished stainless steel evacuated canister that pulls in sample either until the valve is closed or the vaccum is gone. Too high a concentration and you probably bought the $1,000 can and too low and you will not detect anything. The sample is run on a GC-MS back at the lab.

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close