Volume 92 Issue 33 | p. 8 | News of The Week
Issue Date: August 18, 2014

Fixing A Source Of Sewer Corrosion

Civil Engineering: Switching water-treatment chemicals could reduce sulfides that degrade cement pipes
Department: Science & Technology | Collection: Life Sciences, Sustainability
News Channels: Materials SCENE, Biological SCENE, Environmental SCENE
Keywords: water treatment, waste management, sewer

Today’s underground sewer infrastructure is the result of more than 100 years of investment. In the U.S., for example, the sewer system is now valued at an estimated $1 trillion. But that investment is under a chemical threat from sulfide-induced concrete corrosion, according to a research report. The problem is largely preventable by eliminating sulfate—the source of the sulfide—from water-treatment operations, the study’s authors say.

The sewer sulfide problem has been around since sewers were . . .

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