title: Hydrogen sulphide removal from corroding concrete: comparison between surface removal rates and biomass activity.
abstract: Corrosion of concrete sewer pipes caused by hydrogen sulphide is a problem in many sewer networks. The mechanisms of production and fate of hydrogen sulphide in the sewer biofilms and wastewater as well as its release to the sewer atmosphere are largely understood. In contrast, the mechanisms of the uptake of hydrogen sulphide on the concrete surfaces and subsequent concrete corrosion are basically unknown. To shed light on these mechanisms, the uptake of hydrogen sulphide from a sewer gas phase was compared to the biological hydrogen sulphide removal potential of the concrete corrosion products. The results showed that both microbial degradation at and sorption to the concrete surfaces were important for the uptake of hydrogen sulphide on the concrete surfaces.
authors: Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Aalborg, Denmark. hsj@bio.aau.dk
authors: H S
authors: HS
authors: Jensen
authors: A H
authors: AH
authors: Nielsen
authors: P N L
authors: PN
authors: Lens
authors: T
authors: T
authors: Hvitved-Jacobsen
authors: J
authors: J
authors: Vollertsen
mesh_terms: D018533:Biomass; D003252:Construction Materials / Q000382:microbiology*; D003343:Corrosion; D006862:Hydrogen Sulfide / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D006862:Hydrogen Sulfide