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Thiourea Analysis ?
Posted: Wednesday, July 7, 2010 12:07 PM
Joined: 7/7/2010
Posts: 1

I am searching for a laboratory that can analyze for thiourea.  We have an industry discharging thiourea that's placing a significant chlorine demand on our WWTP.  We have analyzed it on a UV/VIS spectrophotometer at 236 nm but need a 3rd party verification with a more sophisticated instrument e.g. LC-MS or other proven analytical methodology.  Has anyone encountered an industry discharging a strong reducing agent that consumes their chlorine?  If so, I would appreciate talking to you.  Thanks.......Guy  510-477-7670 

James Royer
Posted: Thursday, February 3, 2011 10:16 AM
Joined: 9/21/2009
Posts: 98

Have you found any labs doing this analysis yet? Thiourea is a nitrification inhibitor so if it is being discharged it would effect ammonia treatment. It would be good to check when we have a high ammonia as to wheither thiourea was present.