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Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon

Received: 12 January 2024     Accepted: 5 February 2024     Published: 27 February 2024
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Abstract

The Yato physicochemical water purification station is located in the commune of Dibombari in the Littoral-Cameroon region. It is one of the largest drinking water production stations in the Central African sub-region. This work aims to evaluate the agronomic power of the sludge from this drinking water production station. To achieve this objective, mixed samples of sludge from sludge treatment basins (taken according to the technique described in GIDS-A003 point 6 as explained in the Solid and pasty waste sampling strategy of the Code of Good Practice No. 2). and primary settling basins (collected in transparent 1.5L polyethylene terephthalate bottles) were analyzed. Likewise, three soil samples (marsh, Point 1 and Point 2) were taken and then sent to the laboratory where physicochemical analyzes were carried out. The characteristics of the samples that were analyzed are: particle size, texture (sand, silt, clay) and physicochemistry (organic matter, CEC, sum of exchangeable bases, calcium, nitrogen, potassium and magnesium). The results obtained show that the soils exposed to contamination from the sludge of the station have better agronomic properties both on a physical level with a stable structure favorable to plant growth and good aeration unlike the soils far from the station which presented a high risk. degradation; that on the chemical level with an optimal cationic balance, a high reserve of exchangeable bases, a strong CEC but average limitations in assimilable phosphorus and pH unlike the soil far from the station which presented an insufficiency of potassium which did not facilitate a balance cationic, a low CEC but a pH above 5.5 which is the value recommended in agronomy. Biochemically, organic matter is above 2% in all soils, a mineralization rate less than 20 favoring the rapid mineralization of carbon and a release of nitrogen available to the plant. These results obtained allow us to conclude that the sludge from the Yato station can be used in agronomy as an organic fertilizer in order to correct the soil structure, the CEC, the cationic balances and also provide the soil with a good base reserve. However, treating this sludge with lime could regulate the pH of the soil and reduce the mobility of heavy metals in the soil.

Published in Journal of Chemical, Environmental and Biological Engineering (Volume 8, Issue 1)
DOI 10.11648/j.jcebe.20240801.14
Page(s) 25-36
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), 2024. Published by Science Publishing Group

Keywords

Yato, Sludge, Fertilizing Power, Polluting, Drinking Water

References
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Cite This Article
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    Djougo-Jantcheu, Y., Ndongo, B., Njila, R. N., Djatsa, K. N. (2024). Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon. Journal of Chemical, Environmental and Biological Engineering, 8(1), 25-36. https://doi.org/10.11648/j.jcebe.20240801.14

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    Djougo-Jantcheu, Y.; Ndongo, B.; Njila, R. N.; Djatsa, K. N. Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon. J. Chem. Environ. Biol. Eng. 2024, 8(1), 25-36. doi: 10.11648/j.jcebe.20240801.14

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    AMA Style

    Djougo-Jantcheu Y, Ndongo B, Njila RN, Djatsa KN. Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon. J Chem Environ Biol Eng. 2024;8(1):25-36. doi: 10.11648/j.jcebe.20240801.14

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  • @article{10.11648/j.jcebe.20240801.14,
      author = {Yolande Djougo-Jantcheu and Barthélémy Ndongo and Roger Ntankouo Njila and Kevin Nguedia Djatsa},
      title = {Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon},
      journal = {Journal of Chemical, Environmental and Biological Engineering},
      volume = {8},
      number = {1},
      pages = {25-36},
      doi = {10.11648/j.jcebe.20240801.14},
      url = {https://doi.org/10.11648/j.jcebe.20240801.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jcebe.20240801.14},
      abstract = {The Yato physicochemical water purification station is located in the commune of Dibombari in the Littoral-Cameroon region. It is one of the largest drinking water production stations in the Central African sub-region. This work aims to evaluate the agronomic power of the sludge from this drinking water production station. To achieve this objective, mixed samples of sludge from sludge treatment basins (taken according to the technique described in GIDS-A003 point 6 as explained in the Solid and pasty waste sampling strategy of the Code of Good Practice No. 2). and primary settling basins (collected in transparent 1.5L polyethylene terephthalate bottles) were analyzed. Likewise, three soil samples (marsh, Point 1 and Point 2) were taken and then sent to the laboratory where physicochemical analyzes were carried out. The characteristics of the samples that were analyzed are: particle size, texture (sand, silt, clay) and physicochemistry (organic matter, CEC, sum of exchangeable bases, calcium, nitrogen, potassium and magnesium). The results obtained show that the soils exposed to contamination from the sludge of the station have better agronomic properties both on a physical level with a stable structure favorable to plant growth and good aeration unlike the soils far from the station which presented a high risk. degradation; that on the chemical level with an optimal cationic balance, a high reserve of exchangeable bases, a strong CEC but average limitations in assimilable phosphorus and pH unlike the soil far from the station which presented an insufficiency of potassium which did not facilitate a balance cationic, a low CEC but a pH above 5.5 which is the value recommended in agronomy. Biochemically, organic matter is above 2% in all soils, a mineralization rate less than 20 favoring the rapid mineralization of carbon and a release of nitrogen available to the plant. These results obtained allow us to conclude that the sludge from the Yato station can be used in agronomy as an organic fertilizer in order to correct the soil structure, the CEC, the cationic balances and also provide the soil with a good base reserve. However, treating this sludge with lime could regulate the pH of the soil and reduce the mobility of heavy metals in the soil.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Evaluation of the Fertilizing Power of Sludge from Physicochemical Water Purification Stations: Case of the Yato Station, Littoral-Cameroon
    AU  - Yolande Djougo-Jantcheu
    AU  - Barthélémy Ndongo
    AU  - Roger Ntankouo Njila
    AU  - Kevin Nguedia Djatsa
    Y1  - 2024/02/27
    PY  - 2024
    N1  - https://doi.org/10.11648/j.jcebe.20240801.14
    DO  - 10.11648/j.jcebe.20240801.14
    T2  - Journal of Chemical, Environmental and Biological Engineering
    JF  - Journal of Chemical, Environmental and Biological Engineering
    JO  - Journal of Chemical, Environmental and Biological Engineering
    SP  - 25
    EP  - 36
    PB  - Science Publishing Group
    SN  - 2640-267X
    UR  - https://doi.org/10.11648/j.jcebe.20240801.14
    AB  - The Yato physicochemical water purification station is located in the commune of Dibombari in the Littoral-Cameroon region. It is one of the largest drinking water production stations in the Central African sub-region. This work aims to evaluate the agronomic power of the sludge from this drinking water production station. To achieve this objective, mixed samples of sludge from sludge treatment basins (taken according to the technique described in GIDS-A003 point 6 as explained in the Solid and pasty waste sampling strategy of the Code of Good Practice No. 2). and primary settling basins (collected in transparent 1.5L polyethylene terephthalate bottles) were analyzed. Likewise, three soil samples (marsh, Point 1 and Point 2) were taken and then sent to the laboratory where physicochemical analyzes were carried out. The characteristics of the samples that were analyzed are: particle size, texture (sand, silt, clay) and physicochemistry (organic matter, CEC, sum of exchangeable bases, calcium, nitrogen, potassium and magnesium). The results obtained show that the soils exposed to contamination from the sludge of the station have better agronomic properties both on a physical level with a stable structure favorable to plant growth and good aeration unlike the soils far from the station which presented a high risk. degradation; that on the chemical level with an optimal cationic balance, a high reserve of exchangeable bases, a strong CEC but average limitations in assimilable phosphorus and pH unlike the soil far from the station which presented an insufficiency of potassium which did not facilitate a balance cationic, a low CEC but a pH above 5.5 which is the value recommended in agronomy. Biochemically, organic matter is above 2% in all soils, a mineralization rate less than 20 favoring the rapid mineralization of carbon and a release of nitrogen available to the plant. These results obtained allow us to conclude that the sludge from the Yato station can be used in agronomy as an organic fertilizer in order to correct the soil structure, the CEC, the cationic balances and also provide the soil with a good base reserve. However, treating this sludge with lime could regulate the pH of the soil and reduce the mobility of heavy metals in the soil.
    
    VL  - 8
    IS  - 1
    ER  - 

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Author Information
  • Department of Rural Engineering, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon

  • Department of Rural Engineering, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon

  • Department of Rural Engineering, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon

  • Department of Rural Engineering, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon

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