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State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO)

Received: 30 November 2018     Accepted: 19 December 2018     Published: 10 January 2019
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Abstract

The problem of water supply from the public distribution network is still very acute in many cities in developing countries. The intermittent supply of water is forcing some households to build underground tanks of reinforced concrete to store domestic water. This work shows the problem of sustainability of water storage tanks made of concrete, in an aggressive environment but also especially the physicochemical quality of water stored in. The methodological approach chosen is based first of all on the physicochemical analysis of the water stored in these tanks. Indeed, the reliability of tanks, which reflected in their impermeability overlooked external environment, has a direct impact on the quality of stored water and therefore the use that is made daily. In this context, the results of the physicochemical measurements carried out, the comparison of the water coming out of the treatment plant of the National Water Distribution Company (SNDE), made it possible to highlight indices of pollution in the stored waters contained in the buried tanks.. Some samples of stored water, about 42.10%; which poses a public health problem. These results have clearly demonstrated the porous nature of the concrete chosen as the base material used for the construction of said tanks. Thus, anthropogenic pollution is evoked, which is confirmed by the high levels of physicochemical parameters measured in samples RE01, RE02, RE03, RE04, RE04, RE05, RE10, RE11 and RE12. In addition, 57.9% of these stored waters have low mineralization. These are acceptable as drinking water (RE06, RE07, RE08, RE09, RE13, RE14, RE15, RE16, RE17, RE18 and RE19). These waters identified as such must be subject to specific treatment and time monitoring. These results were obtained during dry season. During this period, there is drawdown of ground water. In rainy season, ground water is enhanced and exchanges are more important.

Published in American Journal of Environmental Protection (Volume 7, Issue 6)
DOI 10.11648/j.ajep.20180706.13
Page(s) 84-98
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Underground Tanks, Water Storage, Diffusion, Pollutant, Reinforced Concrete, Porosity, Contamination

References
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    Narcisse Malanda, Laurent Matini, Paul Louzolo-Kimbembe, Pregidi Mbayi, Bernard Mabiala. (2019). State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO). American Journal of Environmental Protection, 7(6), 84-98. https://doi.org/10.11648/j.ajep.20180706.13

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    ACS Style

    Narcisse Malanda; Laurent Matini; Paul Louzolo-Kimbembe; Pregidi Mbayi; Bernard Mabiala. State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO). Am. J. Environ. Prot. 2019, 7(6), 84-98. doi: 10.11648/j.ajep.20180706.13

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    AMA Style

    Narcisse Malanda, Laurent Matini, Paul Louzolo-Kimbembe, Pregidi Mbayi, Bernard Mabiala. State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO). Am J Environ Prot. 2019;7(6):84-98. doi: 10.11648/j.ajep.20180706.13

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  • @article{10.11648/j.ajep.20180706.13,
      author = {Narcisse Malanda and Laurent Matini and Paul Louzolo-Kimbembe and Pregidi Mbayi and Bernard Mabiala},
      title = {State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO)},
      journal = {American Journal of Environmental Protection},
      volume = {7},
      number = {6},
      pages = {84-98},
      doi = {10.11648/j.ajep.20180706.13},
      url = {https://doi.org/10.11648/j.ajep.20180706.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20180706.13},
      abstract = {The problem of water supply from the public distribution network is still very acute in many cities in developing countries. The intermittent supply of water is forcing some households to build underground tanks of reinforced concrete to store domestic water. This work shows the problem of sustainability of water storage tanks made of concrete, in an aggressive environment but also especially the physicochemical quality of water stored in. The methodological approach chosen is based first of all on the physicochemical analysis of the water stored in these tanks. Indeed, the reliability of tanks, which reflected in their impermeability overlooked external environment, has a direct impact on the quality of stored water and therefore the use that is made daily. In this context, the results of the physicochemical measurements carried out, the comparison of the water coming out of the treatment plant of the National Water Distribution Company (SNDE), made it possible to highlight indices of pollution in the stored waters contained in the buried tanks.. Some samples of stored water, about 42.10%; which poses a public health problem. These results have clearly demonstrated the porous nature of the concrete chosen as the base material used for the construction of said tanks. Thus, anthropogenic pollution is evoked, which is confirmed by the high levels of physicochemical parameters measured in samples RE01, RE02, RE03, RE04, RE04, RE05, RE10, RE11 and RE12. In addition, 57.9% of these stored waters have low mineralization. These are acceptable as drinking water (RE06, RE07, RE08, RE09, RE13, RE14, RE15, RE16, RE17, RE18 and RE19). These waters identified as such must be subject to specific treatment and time monitoring. These results were obtained during dry season. During this period, there is drawdown of ground water. In rainy season, ground water is enhanced and exchanges are more important.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - State of Play on the Physicochemical Quality of Waters Stored in Concrete Tank Buried Under Wet and Polluted Soil: The Case of the City of Pointe-Noire (CONGO)
    AU  - Narcisse Malanda
    AU  - Laurent Matini
    AU  - Paul Louzolo-Kimbembe
    AU  - Pregidi Mbayi
    AU  - Bernard Mabiala
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    PY  - 2019
    N1  - https://doi.org/10.11648/j.ajep.20180706.13
    DO  - 10.11648/j.ajep.20180706.13
    T2  - American Journal of Environmental Protection
    JF  - American Journal of Environmental Protection
    JO  - American Journal of Environmental Protection
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    EP  - 98
    PB  - Science Publishing Group
    SN  - 2328-5699
    UR  - https://doi.org/10.11648/j.ajep.20180706.13
    AB  - The problem of water supply from the public distribution network is still very acute in many cities in developing countries. The intermittent supply of water is forcing some households to build underground tanks of reinforced concrete to store domestic water. This work shows the problem of sustainability of water storage tanks made of concrete, in an aggressive environment but also especially the physicochemical quality of water stored in. The methodological approach chosen is based first of all on the physicochemical analysis of the water stored in these tanks. Indeed, the reliability of tanks, which reflected in their impermeability overlooked external environment, has a direct impact on the quality of stored water and therefore the use that is made daily. In this context, the results of the physicochemical measurements carried out, the comparison of the water coming out of the treatment plant of the National Water Distribution Company (SNDE), made it possible to highlight indices of pollution in the stored waters contained in the buried tanks.. Some samples of stored water, about 42.10%; which poses a public health problem. These results have clearly demonstrated the porous nature of the concrete chosen as the base material used for the construction of said tanks. Thus, anthropogenic pollution is evoked, which is confirmed by the high levels of physicochemical parameters measured in samples RE01, RE02, RE03, RE04, RE04, RE05, RE10, RE11 and RE12. In addition, 57.9% of these stored waters have low mineralization. These are acceptable as drinking water (RE06, RE07, RE08, RE09, RE13, RE14, RE15, RE16, RE17, RE18 and RE19). These waters identified as such must be subject to specific treatment and time monitoring. These results were obtained during dry season. During this period, there is drawdown of ground water. In rainy season, ground water is enhanced and exchanges are more important.
    VL  - 7
    IS  - 6
    ER  - 

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Author Information
  • Mechanical, Energy and Engineering Laboratory, Higher National Polytechnic School, Marien Ngouabi University, Brazzaville, Congo

  • Department of Chemistry, Higher Normal School, Marien Ngouabi University, Brazzaville, Congo

  • Department of Chemistry, Higher Normal School, Marien Ngouabi University, Brazzaville, Congo

  • Mechanical, Energy and Engineering Laboratory, Higher National Polytechnic School, Marien Ngouabi University, Brazzaville, Congo

  • Mechanical, Energy and Engineering Laboratory, Higher National Polytechnic School, Marien Ngouabi University, Brazzaville, Congo

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