Influence of pipe material and surfaces on sulfide related odor and corrosion in sewers

Nielsen, Asbjørn Haaning; Vollertsen, Jes; Jensen, Henriette Stokbro; Wium-Andersen, Tove; Hvitved-Jacobsen, Thorkild

doi:10.1016/j.watres.2008.07.013

Cited by 83 publications

(41 citation statements)

References 16 publications

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“…In this tion, more infrastructures will be required, in particular the ones 23 related to water supply and sanitation. Hence, the sustainable 24 management of the entire urban water cycle is a key point that 25 needs to be addressed in order to meet the water needs of the 26 citizens.…”

Section: Introductionmentioning

confidence: 99%

Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions: A review and case studies

Eijo-Río

Petit‐Boix

Villalba

et al. 2015

Journal of Environmental Chemical Engineering

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Section: Introductionmentioning

confidence: 99%

Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions: A review and case studies

Eijo-Río

Petit‐Boix

Villalba

et al. 2015

Journal of Environmental Chemical Engineering

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“…This feature is a positive side effect -intrinsic to the operational principle. A deficit of dissolved oxygen is a known problem in both natural waters and sewerage systems [7,8]. Therefore, there is an important need to utilise effective and inexpensive methods and devices to restore the oxygen balance [9].…”

Section: Introductionmentioning

confidence: 99%

How effective is aeration with vortex flow regulators? Pilot scale experiments

Wójtowicz

Szlachta

2017

E3S Web Conf.

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Abstract. Vortex flow regulators (VFR) are used in urban drainage systems as a replacement for traditional flow throttling devices. Vortex regulators are not only very efficient energy dissipators but also atomizers which are beneficial for sewer aeration. A deficit of dissolved oxygen can be a problem in both natural waters and sewerage. Hydrodynamic flow regulators can boost oxygen concentration preventing putrefaction and improving treatment of stormwater and wastewater. We were first to investigate the aeration efficiency of semi-commercial scale cylindrical vortex flow regulators to determine the potential of their application in environmental engineering and to propose modification to enhance the aeration capacity of basic designs. Different device geometries and arrangements of active outlets for both single and double discharge vortex regulators were tested in a recirculating system. In this study, we present a concise review of the current state of our extensive research on the aeration efficiency of vortex flow regulators and their application in sewerage systems.

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“…thiosulfate (S 2 O 3 ) or elemental sulfur (S 0 ) as an electron donor [14]. These reactions finally result in the formation of sulfuric acid (H 2 SO 4 ), which attacks the concrete and leads to a variety of dissolution processes, besides enhancing some neo-formation reactions of sulfate mineral phases within the cementitious matrix [15,16]. (iii) The dissociation of H 2 SO 4 goes almost to completion and thus strongly reduces the pH for stimulating the dissolution of silicate, hydroxide and carbonate minerals.…”

Section: Introductionmentioning

confidence: 99%

“…(iv) As the interstitial solution pH of the initially damaged concrete decreases progressively, different strains of bacteria colonize the pores of the concrete, with Acidithiobacillus thiooxidans being the most aggressive one [10]. Many laboratory studies were carried out focusing on the deterioration mechanisms related to MICC on different types of concrete [1,15,[22][23][24], but so far field studies on MICC are rare [25]. Although, the results from laboratory experiments have been widely used to draw conclusions about MICC processes in natural environments, it is almost impossible to reproduce field environmental conditions of MICC in the lab.…”

Section: Introductionmentioning

confidence: 99%

Microbiologically induced concrete corrosion: A case study from a combined sewer network

Grengg

Mittermayr

Baldermann

et al. 2015

Cement and Concrete Research

147

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In this study, a strongly deteriorated concrete-based sewer system was investigated by using a multi proxy approach based on gaseous, hydro-geochemical, microbiological, mineralogical and mechanical analyses. Therefore, gas, liquid, and solid samples were taken throughout the entire sewer system. Long term measurements of gaseous hydrogen sulfide (H 2 S) within the sewer atmosphere yielded concentrations up to 367 ppm. Interstitial fluids, extracted from deteriorated concrete by squeezing, contained sulfate (SO 4 2− ) concentrations of up to 104 g l −1 at strong acidic conditions (0.7 N pH N 3.1) and are close to the saturation state of gypsum. This sulfuric acid attack is indicative for a well-established biofilm containing sulfide oxidizing bacteria (SOB), which was analyzed to consist mainly of Acidithiobacillus thiooxidans. The micro-structure of the attacked concrete displays a progressing alteration zone, which is caused by microbially induced concrete corrosion (MICC), with a suggested pH gradient from about 13 to b 1, from the intact inner concrete zone to the outermost heavily deteriorated concrete. Calcium sulfate minerals such as gypsum (CaSO 4 · 2H 2 O), bassanite (CaSO 4 · 1/2H 2 O) and anhydrite (CaSO 4 ) are abundant in the altered concrete, which were formed from the dissolution of the cement phases and Ca-bearing aggregates. Remarkably high corrosion rates of different precast concrete manholes were quantified to reach values greater than 1 cm yr −1 , despite the fact that C 3 A-free cement, fly ash and a w/c of~0.35 was used.

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Influence of pipe material and surfaces on sulfide related odor and corrosion in sewers

Cited by 83 publications

References 16 publications

Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions: A review and case studies

Municipal sewer networks as sources of nitrous oxide, methane and hydrogen sulphide emissions: A review and case studies

How effective is aeration with vortex flow regulators? Pilot scale experiments

Microbiologically induced concrete corrosion: A case study from a combined sewer network

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