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¡¶Reducing sewer corrosion through integrated urban water management¡·
Sewer systems are among the most critical infrastructure assets for modern urban societies and
provide essential human health protection. Sulfide-induced concrete sewer corrosion costs
billions of dollars annually and has been identified as a main cause of global sewer deterioration.
We performed a 2-year sampling campaign in South East Queensland (Australia), an extensive
industry survey across Australia, and a comprehensive model-based scenario analysis of the
various sources of sulfide. Aluminum sulfate addition during drinking water production contributes
substantially to the sulfate load in sewage and indirectly serves as the primary source of sulfide.
This unintended consequence of urban water management structures could be avoided by
switching to sulfate-free coagulants, with no or only marginal additional expenses compared
with the large potential savings in sewer corrosion costs.
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  • ¸½¼þ 1 : Reducing_sewer_corrosion_through_integrated_urban_water_management_Science20140815.pdf
  • 2014-08-22 16:14:46, 770.26 K

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