Microbiologically Influenced Corrosion in Copper Potable Water Installations

Wagner, D.; Fischer, W.; Paradies, Henrich H.; Franqué, Otto von

doi:10.1007/978-3-642-80017-7_19

Cited by 12 publications

(16 citation statements)

References 16 publications

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“…On the other hand, literature reports pointed out that microorganisms tend to attach themselves onto surface, colonize and proliferate to form a biofilm in the case of copper and its alloys [10,11]. This biofilm induces changes in the electrochemical conditions at the metal/solution interface, and thereby, microorganisms can easily accelerate corrosion [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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The effect of triazole (TR), 3-amino-1,2,4-triazole (ATA) and cetyltrimethylammonium bromide (CTAB) on the inhibition of brass corrosion in simulated cooling water system has been studied using electrochemical measurements, scanning electron microscopy (SEM) observations and energy dispersive X-ray (EDX) analysis. The potentiodynamic polarization study reveals that these inhibitors inhibit both cathodic and anodic reactions, indicating a mixed-type control of inhibition and their inhibition depend on the nitrogen number in their structure. It shows that the ATA is the best inhibitor. The interference between CTAB and TR derivatives against corrosion has been also studied. So, a large passive current plate is observed directly from the corrosion potential in the presence of formulation. In addition, the operational parameters effect on the performance of this formulation is also investigated. It shows that its inhibition efficiency increases with pH, immersion time and the presence of corrosion products and takes its performance by increasing in temperature. The SEM/EDX data confirm that the formulation is a corrosion and scale inhibitor.

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Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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“…Drinking water systems are far from sterile environments, and recent application of molecular methods has revealed surprising diversity in composition [ 1 , 2 ] and function [ 3 ]. The microbial ecology of drinking water systems is now understood to play a critical role in a wide range of economic, water management, and health problems, including microbial-induced corrosion [ 4 , 5 ], nitrification in chloraminated systems [ 6 , 7 ], and waterborne disease [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Water Chemistry, Pipe Material and Stagnation on the Building Plumbing Microbiome

et al. 2015

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A unique microbiome establishes in the portion of the potable water distribution system within homes and other buildings (i.e., building plumbing). To examine its composition and the factors that shape it, standardized cold water plumbing rigs were deployed at the treatment plant and in the distribution system of five water utilities across the U.S. Three pipe materials (copper with lead solder, CPVC with brass fittings or copper/lead combined pipe) were compared, with 8 hour flush cycles of 10 minutes to simulate typical daily use patterns. High throughput Illumina sequencing of 16S rRNA gene amplicons was employed to profile and compare the resident bulk water bacteria and archaea. The utility, location of the pipe rig, pipe material and stagnation all had a significant influence on the plumbing microbiome composition, but the utility source water and treatment practices were dominant factors. Examination of 21 water chemistry parameters suggested that the total chlorine concentration, pH, P, SO4 2- and Mg were associated with the most of the variation in bulk water microbiome composition. Disinfectant type exerted a notably low-magnitude impact on microbiome composition. At two utilities using the same source water, slight differences in treatment approaches were associated with differences in rare taxa in samples. For genera containing opportunistic pathogens, Utility C samples (highest pH of 9–10) had the highest frequency of detection for Legionella spp. and lowest relative abundance of Mycobacterium spp. Data were examined across utilities to identify a true universal core, special core, and peripheral organisms to deepen insight into the physical and chemical factors that shape the building plumbing microbiome.

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“…2000). Increasing water alkalinity has been used as a treatment for copper corrosion problems in drinking water distribution systems, which may have additional advantages by reducing biofilm accumulation (Wagner and Chamberlain 1997). Biomass in filtered systems increased with increasing water organic carbon concentrations.…”

Section: Discussionmentioning

confidence: 99%

Biofilms and microbially influenced cuprosolvency in domestic copper plumbing systems

et al. 2001

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Aims: To survey bio®lm accumulation within domestic copper plumbing pipes in South Australian drinking water distribution systems and examine its role in copper solvation (cuprosolvency). Methods and Results: Cold water copper pipes were sampled from two different plumbing systems receiving ®ltered and un®ltered potable water respectively. Biomass was quanti®ed by total organic carbon measurements and viable cell counts and microbial activity by respirometry. Bio®lm accumulation was related to water chemistry within the systems, particularly nutrients, alkalinity and conductivity, as well as water turbulence. Laboratory coupon experiments were used to determine the effect of extracted bio®lm on copper solvation. Bio®lms were shown to be capable of both increasing and decreasing aqueous copper concentrations in comparison to sterile controls. Conclusions:The results suggest that water quality may in¯uence the accumulation of bio®lms in copper plumbing systems, as well as potential cuprosolvency activity. Signi®cance and Impact of the Study: The presence of bio®lms in copper plumbing systems and their ability to in¯uence aqueous copper concentrations has implications for both public health and the management of distribution systems.

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Microbiologically Influenced Corrosion in Copper Potable Water Installations

Cited by 12 publications

References 16 publications

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Impact of Water Chemistry, Pipe Material and Stagnation on the Building Plumbing Microbiome

Biofilms and microbially influenced cuprosolvency in domestic copper plumbing systems

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