Summary for carbon disulfide spike Discussion
Carbon disulfide spike in wastewater is discussed as a possible contamination source rather than a confirmed process failure. Amy Mable of ceramics & plating reported a huge, 100X-over-limit reading in a waste water tank and asked where it might have come from. In the reply, the answerer said they are not familiar with ceramics, but noted that some silver plating brighteners contain carbon disulphide, so a dumped carboy of expired brightener could explain a large spike. They also pointed out that the wastewater treatment chemical DTC is made from carbon disulphide, so the lab result might reflect that chemistry depending on the analytical method used. The response is cautious and does not identify a single proven source, but it narrows the likely suspects to silver plating additives or DTC-related analysis.
Q. We had a huge spike in Carbon Disulfide in our waste water tank and can’t discern where it came from. Huge as in 100X over the limit.
Do you know where and how this may have occurred?
Amy Mable
ceramics & plating- Butler Pennsylvania
February 15, 2021
A. Hi Amy. I’m not familiar with ceramics so can’t comment on that potential source, but some silver plating brighteners contain carbon disulphide. Maybe if someone dumped a carboy of expired stuff you could get a huge amount in the wastewater? The wastewater treatment chemical DTC is made from carbon disulphide and perhaps that is what is showing up in the wastewater analysis depending on your analytic method?
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com – Pine Beach, New Jersey
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February 2021