Bacillus spore uptake onto heavily corroded iron pipe in a drinking water distribution system simulator Available to Purchase

A dechlorinated drinking water distribution system simulator containing 15-year old unlined iron pipe was contaminated with Bacillus globigii spores. Bulk phase spore density decreased by 1·5  –  2·0 log₁₀ 5 min after injection and declined by 1·8  –  3·4 log₁₀ after 4  d. Spores were detected on the iron pipe interior at 2 and 22 CFU/cm² after it was decontaminated and disassembled. These results support previous bench-scale studies that show that spores can persist on corroded surfaces in a drinking water environment.