| Peer-Reviewed

Characterization of Wastewater Used for Irrigation and Other Purposes in Chad

Received: 17 August 2021    Accepted: 8 September 2021    Published: 16 September 2021
Views:       Downloads:
Abstract

This research work was based on recommendations of a number of researchers stating that pollution has appeared in the Chadian capital, N'Djamena, as a result of the liquid waste being thrown out from some private and public sectors before being treated. This study is a follow-up to research, some of which have been published and some not yet completed. The current article was focused on the determination of some physicochemical characteristics of wastewater in the capital of Chad N’Djamena and to assess their environmental impact. These characteristics were: Temperature, pH, electrical conductivity, TDS, Cu, Zn, Al, Fe, Mn, NO3-, PO43-, HCO3-, chemical oxygen demand (COD), biological oxygen demand (BOD) and total dissolved solids. Samples were taken from four different effluent streams and analyzed according to the standard methods. The results of the evaluation were: pH (4.26 ± 0.06 - 8.57 ± 0.06), temperature (23.17 ± 0.21 - 33.60 ± 0.10°C), electrical conductivity [EC] (212 ± 0.01 - 1997 ± 10 µs/cm), the total dissolved solids TDS (1.42 ± 0.01 - 906.63 ± 1.21 mg/l), chemical oxygen demand COD (30 - 1170 mg/L), biological oxygen demand BOD (26 - 228 mg/L), Cu (0.11 - 6.20 mg/L), Zn (0.02 - 3.53 mg/L), Mn (0.003 - 6.77 mg/L), Al (0.10 -1.12 mg/L), Fe (0.39 - 3.43 mg/L), bicarbonate (23.67 - 853.33 mg/L), phosphate (0.023 - 333.67 mg/L) and nitrate (0.98 - 127.0 mg/L). These results revealed that the values of some parameters are exceeded the limit recommended by the World Health Organization for wastewater discharge. We conclude that this untreated wastewater are sources of pollution to the daily consumed legumes and vegetables.

Published in American Journal of Applied Chemistry (Volume 9, Issue 5)
DOI 10.11648/j.ajac.20210905.12
Page(s) 131-137
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

Effluent, Wastewater, Physicochemical Characteristics, Pollution, Chad

References
[1] Alobaidy A. M. J., Al-Sameraiy M. A., Kadhem A. J., Athmar A., (2010). Evaluation of Treated Municipal Wastewater Quality for Irrigation. Journal of Environmental Protection, 1, 216-225.
[2] Morari F., Giardini L., (2009). Municipal Wastewater Treatment with Vertical Flow Constructed Wetland for Irrigation Reuse. Ecological Eng., 35, 643-653.
[3] Magdalena Loj-Pilch, Anita Zakrzewska, (2020). Analysis of Risk Assessment in a Municipal Wastewater Treatment Plant Located in Upper Silesia. Water, 12-23.
[4] Levantesi C., La Mantia R., Masciopinto C., Böckelmann U., Ayuso Gabella M. N., Salgot M., Tandoi V., Van Houtte E., Wintgens T., Grohmann E., (2010). Quantification of pathogenic microorganisms and microbial indicators in three wastewater reclamation and managed aquifer recharge facilities in Europe. Science of the Total Environment, 408, 4923-4930.
[5] Abdallah Bakhit S., (2014). N’Djamena town “Analytical and applied study on town’s geography”, Ph.D, Africa International University, Sudan.
[6] Moukhtar Abderahman, S., (2008). Environmental pollution in N’Djamena town “Applied study on the current situation”, M.Sc., Academy of Higher Studies, Libya.
[7] Tchadanaye N. M., Noumi G. B., Paloumi Yabe., (2016). Pollution of the Chari River in the Slaughterhouse Farcha (N'djamena) in Chad, American Journal of Environmental Protection, 5 (1), 11-19.
[8] Bantin A. B., Jun X., (2017). Assessment of Environmental risks related to the release of industrial and domestic toxic waste in the aquatic environment of chad. Environ Risk Assess Remediation, 1 (3), 22-25.
[9] Mosse K. P. M., Patti A. F., Smernik R. J., Christen E. W. Cavagnaro T. R., (2012). Physicochemical and microbiological effects of long- and short-term winery waste water application to soil, Journal of Hazardous Materials, 30, 219-228.
[10] Pednekar A. M., Grant S. B., Jeong Y., Poon Y., Oancea C., (2005). Influence of climate change, tidal mixing, and watershed urbanization on historical water quality in Newport Bay, a saltwater wetland and tidal embayment in southern California, Environ Sci Technol, 39, 9071-9082.
[11] Oster, J. D., (1994). Irrigation with Poor Quality Water, Agricultural Water Management, 25 (3), 271-297.
[12] Qadir M., Wichelns D., Raschid-Sally L., Minhas P. S., Drechsel P., Bahri A., McKornick P., (2007). Agricultural Use of Marginal Quality Water Opportunities and Challenges, In: D. Molden, Ed., Water for Food, Water and life: A Comprehensive Assessment of Water Management in Agriculture, Earthscan, London.
[13] Rabea E., Bahia B., Youssef M., Ahlam F., El Mouhri G., Bouchra O., Khatouf M., Karima E., Touimi G. B., Anissa L., (2019). Microbiological and Physicochemical Characterization of Hospital Effluents before and after Treatment with Two Types of Sawdust, Journal of Chem., Doi.org/10.1155/2019/3275101.
[14] WHO, (2006). Health Guidelines for the Use of Wastewater in Agriculture and Aquaculture, Report of a WHO Scientific Group, Geneva.
[15] Benit N., Stella Roslin A., (2015). Physicochemical properties of wastewater collected from different sewage sources. International Journal of Innovative Science, Engineering & Technol., 2 (11), 691- 696.
[16] Mojeed A. A., Okoh O. O., Adefisoye M. A., Anthony I. O., (2018). Physicochemical Properties of Wastewater in Three Typical South African Sewage Works, Pol. J. Environ. Stud., 27 (2), 491-499.
[17] Xiaochang W., Pengkang J., Hongmei Z., Lingba M., (2007). Classification of contaminants and treatability evaluation of domestic wastewater, Front. Environ. Sci. Eng., 1 (1), 57-62.
[18] Knechtel R. J., (1978). A more economical method for the determination of chemical oxygen demand, Water Pollution Control, 25-29.
[19] Lorduy-Tarón A. S., Marín-Gongora, Taron-Dunoyer A., (2019). Wastewater Physicochemical Characterization from the Thanatopraxy Room, Contemporary Engineering Sciences, 12 (2), 65 - 71.
[20] Altidjani-Hisseine A., Kamga R., Tchadanaye N. M., (2016). Physico-Chemical Evaluation of Wastewater from Abattoir, Brewery, Soap and Oil Factories, at Moundou City in Southern Chad, Int. Journal of Engineering Research and Applications, 6 (1), 19-30.
[21] N’garam N., Clement Y., Merle A., Tchadanaye N. M. Lanteri P., (2017). Heavy Metal Pollution of Chari River water during the Crossing of N’Djamena (Chad), Toxics, Doi: 10.3390/toxics5040026.
[22] AFNOR M. T., (1995). Water quality changes at lake Monger due to widening of the Michell freeway CSIRO, Western Australia, Progress report the Main Roads Department.
[23] ISO 2100P., (2006). Wastewater characterization for evaluation of Turbidity in Water and Wastewater. USA, 84-92.
[24] American Public Health Association (APHA), (2005). Standard Methods for the Examination of Water and Wastewater 21th ed. Washington, D.C.
[25] United Stats Environmental Protection Agency (USEPA, (1979). Guidelines for Wastewater used in irrigation, Volume 7.
[26] AFNOR, (1994). French Association of Normalization, Quality of the water and the environment, France, 862p.
[27] WHO, (1993). Guidelines for Quality Wastewater used in irrigation, Vol. 3: Recommendations WHO, Geneva.
[28] Mustapha I. H., Adeboye Omotayo B., (2014). Heavy metals accumulation in edible part of vegetables irrigation with untreated municipal wastewater in Tropical Savannah Zone - Nigeria, African Journal of Environmental sciences and Technology, 47-58.
[29] Official Gazette No. 5062, (2002). dated 30 Ramadan 1423 (5 December) laying down the standards of water quality for irrigation.
[30] Chaouki H., Elwatik L., Fath-Allah R., Ayyach A., Fathallah Z., El Midaoui A., (2014). Evaluation of the content of heavy metals and organic micropollutantsin the effluents of the wastewater treatment plant of the Errachidia city-Morocco. Int. Journal of Engineering, Research and Applications, 4 (6), 28-32.
[31] European Union (EU), (2011). Guidelines for Quality Wastewater used in irrigation, pp 14.
[32] Moroccan Standards, (2002). Limit values of direct and indirect discharges of Morocco, Ministry of Environment of Morocco. Official Bulletin of Morocco, No. 5062 of 30 Ramadan 1423. Rabat.
[33] Tolulope E. A., Temilola Oluseyi, John O. O., Edokpayi J. N., (2019). Physico-Chemical Analysis of Wastewater Discharge from Selected Paint Industries in Lagos, Nigeria. Int. J. Environ. Res. Public Health, 16: doi: 10.3390/ijerph16071235.
[34] Al-salman A. M., (1985). Analytical studies on some ions in wastewater treatment and use in irrigation at al-gatroun City, M.Sc., Fac. Sci. Sabha. Univ, 12-21.
[35] Hashem M. S., Xuebin Qi., (2021). Treated Wastewater Irrigation ̶ A Review, Water, 13: 1527, doi.org/10.3390/w13111527.
[36] Okey R. W., Albertson O. E., (1989). The role of the diffusion in regulating rate and masking temperature effects on fixed film nitrification. J. Water pollution control Fed, 61, 170-176.
Cite This Article
  • APA Style

    Gamar Mahamat Gamar, Izzat Mirgani Taha, Mohagir Ahmed Mohammed. (2021). Characterization of Wastewater Used for Irrigation and Other Purposes in Chad. American Journal of Applied Chemistry, 9(5), 131-137. https://doi.org/10.11648/j.ajac.20210905.12

    Copy | Download

    ACS Style

    Gamar Mahamat Gamar; Izzat Mirgani Taha; Mohagir Ahmed Mohammed. Characterization of Wastewater Used for Irrigation and Other Purposes in Chad. Am. J. Appl. Chem. 2021, 9(5), 131-137. doi: 10.11648/j.ajac.20210905.12

    Copy | Download

    AMA Style

    Gamar Mahamat Gamar, Izzat Mirgani Taha, Mohagir Ahmed Mohammed. Characterization of Wastewater Used for Irrigation and Other Purposes in Chad. Am J Appl Chem. 2021;9(5):131-137. doi: 10.11648/j.ajac.20210905.12

    Copy | Download

  • @article{10.11648/j.ajac.20210905.12,
      author = {Gamar Mahamat Gamar and Izzat Mirgani Taha and Mohagir Ahmed Mohammed},
      title = {Characterization of Wastewater Used for Irrigation and Other Purposes in Chad},
      journal = {American Journal of Applied Chemistry},
      volume = {9},
      number = {5},
      pages = {131-137},
      doi = {10.11648/j.ajac.20210905.12},
      url = {https://doi.org/10.11648/j.ajac.20210905.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20210905.12},
      abstract = {This research work was based on recommendations of a number of researchers stating that pollution has appeared in the Chadian capital, N'Djamena, as a result of the liquid waste being thrown out from some private and public sectors before being treated. This study is a follow-up to research, some of which have been published and some not yet completed. The current article was focused on the determination of some physicochemical characteristics of wastewater in the capital of Chad N’Djamena and to assess their environmental impact. These characteristics were: Temperature, pH, electrical conductivity, TDS, Cu, Zn, Al, Fe, Mn, NO3-, PO43-, HCO3-, chemical oxygen demand (COD), biological oxygen demand (BOD) and total dissolved solids. Samples were taken from four different effluent streams and analyzed according to the standard methods. The results of the evaluation were: pH (4.26 ± 0.06 - 8.57 ± 0.06), temperature (23.17 ± 0.21 - 33.60 ± 0.10°C), electrical conductivity [EC] (212 ± 0.01 - 1997 ± 10 µs/cm), the total dissolved solids TDS (1.42 ± 0.01 - 906.63 ± 1.21 mg/l), chemical oxygen demand COD (30 - 1170 mg/L), biological oxygen demand BOD (26 - 228 mg/L), Cu (0.11 - 6.20 mg/L), Zn (0.02 - 3.53 mg/L), Mn (0.003 - 6.77 mg/L), Al (0.10 -1.12 mg/L), Fe (0.39 - 3.43 mg/L), bicarbonate (23.67 - 853.33 mg/L), phosphate (0.023 - 333.67 mg/L) and nitrate (0.98 - 127.0 mg/L). These results revealed that the values of some parameters are exceeded the limit recommended by the World Health Organization for wastewater discharge. We conclude that this untreated wastewater are sources of pollution to the daily consumed legumes and vegetables.},
     year = {2021}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Characterization of Wastewater Used for Irrigation and Other Purposes in Chad
    AU  - Gamar Mahamat Gamar
    AU  - Izzat Mirgani Taha
    AU  - Mohagir Ahmed Mohammed
    Y1  - 2021/09/16
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajac.20210905.12
    DO  - 10.11648/j.ajac.20210905.12
    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
    SP  - 131
    EP  - 137
    PB  - Science Publishing Group
    SN  - 2330-8745
    UR  - https://doi.org/10.11648/j.ajac.20210905.12
    AB  - This research work was based on recommendations of a number of researchers stating that pollution has appeared in the Chadian capital, N'Djamena, as a result of the liquid waste being thrown out from some private and public sectors before being treated. This study is a follow-up to research, some of which have been published and some not yet completed. The current article was focused on the determination of some physicochemical characteristics of wastewater in the capital of Chad N’Djamena and to assess their environmental impact. These characteristics were: Temperature, pH, electrical conductivity, TDS, Cu, Zn, Al, Fe, Mn, NO3-, PO43-, HCO3-, chemical oxygen demand (COD), biological oxygen demand (BOD) and total dissolved solids. Samples were taken from four different effluent streams and analyzed according to the standard methods. The results of the evaluation were: pH (4.26 ± 0.06 - 8.57 ± 0.06), temperature (23.17 ± 0.21 - 33.60 ± 0.10°C), electrical conductivity [EC] (212 ± 0.01 - 1997 ± 10 µs/cm), the total dissolved solids TDS (1.42 ± 0.01 - 906.63 ± 1.21 mg/l), chemical oxygen demand COD (30 - 1170 mg/L), biological oxygen demand BOD (26 - 228 mg/L), Cu (0.11 - 6.20 mg/L), Zn (0.02 - 3.53 mg/L), Mn (0.003 - 6.77 mg/L), Al (0.10 -1.12 mg/L), Fe (0.39 - 3.43 mg/L), bicarbonate (23.67 - 853.33 mg/L), phosphate (0.023 - 333.67 mg/L) and nitrate (0.98 - 127.0 mg/L). These results revealed that the values of some parameters are exceeded the limit recommended by the World Health Organization for wastewater discharge. We conclude that this untreated wastewater are sources of pollution to the daily consumed legumes and vegetables.
    VL  - 9
    IS  - 5
    ER  - 

    Copy | Download

Author Information
  • Higher Institute for Teachers Formation in N’Djamena, N’Djamena, Chad

  • National Center for Research, Khartoum, Sudan

  • Faculty of Pure and Applied Science, University of N’Djamena, N’Djamena, Chad

  • Sections