The two concrete samples on the left from the treated wastewater stream show minimal corrosion after two years. The samples on the right were exposed to the untreated stream and are significantly more corroded.
Sulfuric acid poses a danger to people working in the sewers. It can attack eyes, throats and lungs. Two municipal workers in Texas died due to H2S exposure earlier this year. In extreme cases, when you have anaerobic conditions, the formation of methane gas can occur and result...
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