BTEX Monitor for Water Effluent

[agf94510]

Trying to locate a reliable BTEX Analyzer / Monitor for a Petrochem water effluent stream. Range of 0 to 20 PPM is desirable.

The instrument will be located outdoors and requires NRTL Approval (ie UL, FM, or cCSAus) for Class 1 Div 2 Group C,D.

Any experience out there?

 

[bimr]

Turner Design sells a device that may work for you:

http://www.oilinwatermonitors.com/images/4100xd.jpg

You probably are aware that it is difficult to monitor oil because the oil will stick and/or coat most materials (including the sampling tubing). And that is why most sampling for reporting is done with batch samples for precise oil analyses.

 

[JLSeagull]

In addition to the "oil-in-water" analyzers consider some of the products HRVOC analysis techniques. Examples include gas chromatographs and total hydrocarbon (thermal conductivity) analyzers. Hydrocarbon in cooling water has been a really big deal in Texas over the last few years. Many companies spend a small fortune to verify that they had no emissions.

 

[WaterMatt05]

Have similar requirement for a online PAH monitor for industral wastewater. Looking to measure total PAH content in range of 0-100 mg/L.

Dual capability for BTEX analysis would be a bonus.

Thank you.

 

[moltenmetal]

UV fluorescense is a screening method which will basically tell you if there are aromatic rings in the water. It will not tell you which ones, so you can expect some false positives. All you'll get is a gross measure of how much total crap is there. Not bad if what you're after is detecting total failure of your treatment unit or perhaps a massive sudden load to the system, but you'll still need back-up analysis for regulatory purposes.

Unless you count naphthalene, none of the PAH are soluble beyond about 1-10 ppm, so what you'll be looking for at 100 ppm is free product or particulates containing these species. I presume you're regulated on PAHs well below 10 ppm.