Menu
Search
Filters
Close
Menu

Microbiologically Influenced Corrosion In Drinking Water Pipelines – Old Deposits Or Active Process?

Microbiologically Influenced Corrosion in Drinking Water Pipelines – Old Deposits or Active Process?
Available for download

In the Netherlands, a large drinking water distribution system exists which composes of a complex network of underground pipes owned by several water companies. Part of the drinking water distributions pipes consist of cast iron pipes of which some have been installed more than 80 years ago.1 To prevent leaks, it is desirable to have insight into the condition of these pipes and the risk of leakages or even pipe bursts. During local replacements and maintenance work, corrosion is regularly found in the pipes and previous research7 has indicated that Microbiologically Influenced Corrosion (MIC) may be involved in this corrosion that is found in the pipes. 

Product Number: 51322-18068-SG
Author: Elsemiek Croese, Eelco Trietsch, Jentina Schuurman, Sabine Doddema
Publication Date: 2022
Industries: Water/Wastewater , Corrosion Monitoring and Control
$0.00
$20.00
$20.00

In the Netherlands, a large part of the drinking water distribution system consists of cast iron pipelines of which some have been installed and are used since the beginning of the last century.  Previous investigations showed that corrosion deposits are present in many of those pipes and follow-up research showed that microbial processes have been involved in the corrosion damage. Due to the increase in water quality over the decades, the question was raised whether the MIC processes were still active in the water distribution system. To investigate whether the MIC processes were still active, RNA technology was used to investigate the microorganisms in the water distribution pipelines at corrosion defected areas. RNA is the genetic material which occurs in biological cells only when they are active. We applied two genetic technologies: RNA qPCR and RNA metagenomics by Next Generation Sequencing. With a combination of those techniques we could confirm that, despite the good water quality, MIC processes were still active and could form a direct risk in cast iron water pipes. Interestingly there seemed to be no relation between the water quality and the activity of MIC. 

In the Netherlands, a large part of the drinking water distribution system consists of cast iron pipelines of which some have been installed and are used since the beginning of the last century.  Previous investigations showed that corrosion deposits are present in many of those pipes and follow-up research showed that microbial processes have been involved in the corrosion damage. Due to the increase in water quality over the decades, the question was raised whether the MIC processes were still active in the water distribution system. To investigate whether the MIC processes were still active, RNA technology was used to investigate the microorganisms in the water distribution pipelines at corrosion defected areas. RNA is the genetic material which occurs in biological cells only when they are active. We applied two genetic technologies: RNA qPCR and RNA metagenomics by Next Generation Sequencing. With a combination of those techniques we could confirm that, despite the good water quality, MIC processes were still active and could form a direct risk in cast iron water pipes. Interestingly there seemed to be no relation between the water quality and the activity of MIC. 

Product tags
Also Purchased
Picture for Corrosion Risk and Mitigation in Building Water Systems
Available for download

51318-11140-Corrosion Risk and Mitigation in Building Water Systems

Product Number: 51318-11140-SG
Author: Mehgooz Zamanzadeh / George T. Bayer / Martin C. Latona / James R. Datesh /
Publication Date: 2018
$20.00

This paper explores four specific modes of failure. 1. The dezincification of brass. 2. Problems that plague galvanized pipe. 3. Graphitization of cast iron. 4. Pitting corrosion of stainless steel due to effects of manganese.
Picture for Evaluation Of Corrosion Of Copper Drinking Water Pipes Exposed To Sulfurous Well Water And Ozone Treatment
Available for download

Evaluation Of Corrosion Of Copper Drinking Water Pipes Exposed To Sulfurous Well Water And Ozone Treatment

Product Number: 51321-16875-SG
Author: Kimberly Steiner
Publication Date: 2021
$20.00
Picture for Modelling Electrolytic Hydrofluoric Acid In The Fractionation Phase Change Corrosion Zone Of HF Alkylation Units
Available for download

Modelling Electrolytic Hydrofluoric Acid In The Fractionation Phase Change Corrosion Zone Of HF Alkylation Units

Product Number: 51322-17520-SG
Author: Andy C. Gysbers, J. Tim Korstanje, Michael S. Cayard, Peiming Wang, Ezequiel Vincent
Publication Date: 2022
$20.00

Hydrofluoric acid (HF) is used as a catalyst in the alkylation process to react isobutane with olefin feeds to manufacture a high octane alkylate product used in gasoline blending. The HF catalyst is added in its anhydrous liquid form (< 400 ppmw H2O) but as it circulates in the reaction system, residual water in the Paper No. 17520 liquid hydrocarbon feed is absorbed by the acid such that the circulating reaction acid builds up a small percentage (0.5 to 2.0 mass%) of water. This water/HF mixture is also referred to as rich HF (RHF). In addition, the alkylation reactions also will generate fluorocarbons and acid soluble oils (ASOs).
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support