Hydrogen Sulfide corroding Copper piping 1

[Tleinhei]

Hi, Quick question about H2S inside copper water line. We know we are losing thickness to the copper piping and we are aware that this is caused by the sulfur reacting with the copper. My question is about the resultant solid being formed on the inside of the Copper piping. It is a black Flaky material and brushes away from the pipe fairly easily. If any one is able to identify this substance that would be much appreciated, also is this substance potentially toxic or harmful in anyway? Thanks for your help

 

[dicksewerrat]

Take the deposit to a chem lab to have it identified. Why is there so much H2S in your water?

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com

 

[Tleinhei]

Lots of H2S due to long travel time inside the pipes en route to the treatment plant.

 

[GarySCWSVI]

I agree with dicksewerrat on having it analyzed to be certain. It is likely to be precipitated sulfur.

Gary Schreiber, CWS VI
The Purolite Co.

 

[bimr]

You should be able to identify the contaminant with a complete water analysis that can be obtained at little expense.

The black contaminant is likely to be manganese, not sulfur.

If you have a problem with corrosion, then the least expensive method of reducing corrosion is to raise the pH of the water.

 

[bimr]

Some reference material for you:

http://www.copper.org/environment/NACE02122/nace02122c.html