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Posted:
Sat 7th Nov 2009
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Original Post |
User: davem
Status: visitor
Joined:
Nov 2009
Total Posts: 2
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I've been investigating and rehabilitating reinforced concrete wastewater infrastructure for several years. I've found several instances of what appears to be macrocell corrosion of reinforcement in Final Settling Tanks (clarifiers) well below water leve |
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Posted:
Sat 7th Nov 2009
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Reply #1 |
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User: davem
Status: visitor
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Nov 2009
Total Posts: 2
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The remainder of my post was truncated. Could somebody point me towards literature examining macrocell corrosion in low chloride environments? |
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Posted:
Tue 10th Nov 2009
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Reply #2 |
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User: paul lambert
Status: professional
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Feb 2009
Total Posts: 12
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I'll have a dig and see what we've got, although most of the work has been done on chloride induced problems. Given there has to be some driver for the corrosion to occur, is there the possibility of microbial action - something along the lines of an SRB? |
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Posted:
Tue 17th Nov 2009
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Reply #3 |
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User: davem
Status: visitor
Joined:
Nov 2009
Total Posts: 2
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Given it is in wastewater treatment plants, microbial action is certain but I would have thought that virtually all of the sulphur would have been removed by the time the water got to the final settling tanks. |
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