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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in March 2026 (Volume 29, Issue 3) Submit manuscript

Influence of tap water stagnation on copper and iron concentration as a function of pH

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Bachir MIJITABA SAHIROU *, Mahaman Sani LAOUALI, Abdoulkadri AYOUBA MAHAMANE and Awali ABDOUL BARI IDI

Departement of Chemistry, Faculty of Sciences and Technology, Abdou Moumouni University, Niamey, Niger.
 
Research Article
World Journal of Advanced Research and Reviews, 2022, 14(01), 411-418
Article DOI: 10.30574/wjarr.2022.14.1.0342
DOI url: https://doi.org/10.30574/wjarr.2022.14.1.0342
 
Received on 14 March 2022; revised on 19 April 2022; accepted on 21 April 2022
 
The water at the consumer's tap may have a quality far removed from that obtained from the distribution service due to contamination by metallic trace elements. This is why this work is interested in studying the influence of the stagnation of tap water on the concentration of copper and iron. Thus, the levels of Cu and Fe in water with a composition similar to that of the public water supply of Niamey (Niger) in stagnation in four types of pipe were monitored. These are cast iron, galvanized steel, polyvinyl chloride (PVC) and polypropylene (PPR) pipes. The analyzes of the water samples were carried out by flame atomic absorption spectrometry. It appears from this study that all the pipes made up of these pipes and accessories release Cu and Fe into the water under the conditions of the experiment. Metal pipes, in particular the cast iron pipe, release these two metals much more than plastic pipes, in particular PVC. Thus, the new cast iron pipe releases exceptional maximum quantities of iron of the order of 1 to 1800 times the guideline value of 0.3 mg.L-1 after 4 hours to 90 days of water stagnation.
 
Tap water; Trace Metals; Copper; Iron; Niamey
 
https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2022-0342.pdf

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Bachir MIJITABA SAHIROU, Mahaman Sani LAOUALI, Abdoulkadri AYOUBA MAHAMANE and Awali ABDOUL BARI IDI. Influence of tap water stagnation on copper and iron concentration as a function of pH. World Journal of Advanced Research and Reviews, 2022, 14(1), 411-418. Article DOI: https://doi.org/10.30574/wjarr.2022.14.1.0342

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