Sewage Infrastructure Corrosion

Sewage infrastructure corrosion occurs when sewage odour (H
2S) gas is converted to sulfuric acid (H2SO4) by the action of different bacteria.

Biosol products treat the cause of the problem, by minimising the production of (H
2S) gas in the sewers. Dr Richard Pomeroy (US,EPA) has shown that if you halve the sulfides, you approximately double the asset life of concrete gravity sewer mains (see corrosion model theory). We believe that similar ratios exist for other infrastructure corrosion.

Sulfuric acid corrodes the concrete and other infrastructure as seen in the photos below

Sewage Corrosion Costs

Based on the estimates of the Water Industry Network (USA) survey in 2000, Biosol estimate the cost of sewage infrastructure corrosion in Australia to be in the region of
$1.5 billion / annum or around $75.00/ person / year.

Biosol believes that the use of its products will more than halve this cost, saving the Australian community greater than
$0.75 billion / annum or around $38/ person / year.

The WIN survey in the USA estimated that the annual cost of sewage infrastructure corrosion in the US to be $13.75 billion/year in 2000.
Biosol’s estimates are based on WIN report 2000 Appendix K page Kiii Reference (Page Kiii)

Use our online calculator to estimate the cost of corrosion in your sewage assets using Pomeroy’s corrosion model. Model calculator

Return to Sewers & Cost