Wastewater Phytopurification Monitoring with Congolese Planted Filters, Republic of Congo

Gavin-Rolin Diele Mouko

Université Marien NGOUABI, Unité de Chimie du Végétal et de la Vie, Faculté des Sciences et Techniques, B.P. 69, Brazzaville, Congo.

Kiele Molingo Mbemba *

Université Marien NGOUABI, Unité de Chimie du Végétal et de la Vie, Faculté des Sciences et Techniques, B.P. 69, Brazzaville, Congo.

Aimé Bertrand Madiele Mabika

Université Marien NGOUABI, Unité de Chimie du Végétal et de la Vie, Faculté des Sciences et Techniques, B.P. 69, Brazzaville, Congo.

Jean Maurille Ouamba

Université Marien NGOUABI, Unité de Chimie du Végétal et de la Vie, Faculté des Sciences et Techniques, B.P. 69, Brazzaville, Congo.

*Author to whom correspondence should be addressed.


Abstract

The present study aimed to evaluate the purifying power of two Congolese plant filters or emerging macrophytes EP-F (Echinochloa pyramidalis (Lam) Hutch) and CA-F (Cyperus alternifolius L.) on wastewater coming from the Total market, the largest national market of Brazzaville in Congo. To do this, we set up an experimental device composed of gravel, fine sand and two plants. These plants were cultivated in an experimental pilot consisting of 8 tanks of 42,000 cm3 of wastewater at treat each one, in addition to 2 tanks used as controls. The purifying performance study of the system after 90 days of treatment showed a significant reduction in physical, organic and mineral pollution. Using the planted filter EP-F (Echinochloa pyramidalis (Lam)Hutch), we obtain reduction rates of almost 100% for turbidity and for suspended matter (SM), 75.42% for COD, 76.5% for NH4+ ions, 99.5% for NO3- ions and 99.73% for PO43- ions. In the case of the CA-F (Cyperus alternifolius L) planted filter, we obtain reduction rates of almost 100% for turbidity and SM, 80.94% for COD, 93% for ions. NH4+, 89.11% for NO3- ions and 98.93% for PO43- ions. Furthermore, we also noted an increase in organic and mineral pollutants concentrations in the two plants compared to the raw plants before wastewater passage. This study showed that Echinochloa pyramidalis (Lam) Hutch and Cyperus alternifolius L. are effective macrophyte filters to eliminate physical, organic and mineral pollution.

Keywords: Phytoremediation, phytoepuration, urban discharges, wastewater


How to Cite

Mouko, G.-R. D., Mbemba , K. M., Mabika , A. B. M., & Ouamba, J. M. (2024). Wastewater Phytopurification Monitoring with Congolese Planted Filters, Republic of Congo. Asian Journal of Chemical Sciences, 14(2), 97–112. https://doi.org/10.9734/ajocs/2024/v14i2297

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References

UN Environment. Freshwater Strategy 2017-2021. United Nations Environment Programme, Nairobi, Kenya; 2017.

WWAP (World Water Assessment Program). United Nations World Water Development Report 2017. Wastewater – An untapped resource. Paris, UNESCO; 2017.

Sato T, Qadir M, Yamamoto S, Endo T, Zahoor A. Global, regional, and country level need for data on wastewater generation, treatment, and use. Agricultural Water Management. 2013;130: 1–13.

Raj K, Das AP. Lead pollution: Impact on environment and human health and approach for a sustainable solution, Environmental Chemistry and Ecotoxicology. 2023;5:79-85.

Mbemba KM, Koutouma BD, Ouamba JJ. Physico-chemical characterization of wastewaters discharged into songolo river at pointe-noire, Republic of Congo. Chemical Science International Journal. 2019;28(1):1-8.

Origo N, Wicherek S, Hotyat M. Remediation of polluted sites by phytoremediation. The Electronic Journal of Environmental Sciences. 2012;12 (2).

Daverey A, Pakshirajan K, Pretreatement of synthetic dairy wastewater using the sophorolipid producing yeast candida bombicola. Appl. Biochem. Biotechnol. 2011;163 :720.

Zobeidi A. Wastewater purification by aerated lagoon in an arid zone - Case of the El-Oued region. Influential parameters and choice of optimal conditions, Doctoral thesis, Kasdi Merbah-Ouargla University. Algeria; 2018.

Matsodoum Nguembé, P, Djumyom Wafo GV, Djocgoue PF, Kengne Noumsi IM, Wanko Ngnien A. Phytoremediation of soils polluted by hydrocarbons: evaluation of the potential of six tropical plant species. Journal of Water Sciences. 2017;30(1):13-19.

Gherib A, Boufendi M, Temime A, Bedouh Y. Applications of phytoremediation in wastewater treatment in Algeria. Larhyss Journal; 2016.

ISSN 1112-3680. 27:23-27.

Elmansouri I, Lahkimi A, Mansour O, Elouadrhiri F, Chaouch M, Eloutassi N, Elkhamar F, Bekkari H. Study of the operation of an industrial water treatment plant of the northern soft drink company fez, Morocco. Ecological Engineering & Environmental Technology. 2022;23(6), 22 7–232.

Khotimah CK, Handayani DS, Sudarno Syafrudin Hadiwidodo M, Wardhana IW. The efficiency of biological oxygen demand removal in domestic wastewater treatment using multi soil layering. International Conference on Research Collaboration of Environmental Science. IOP Conf. Series: Earth and Environmental Science. 2021;802.

Makhoukh M, Sbaa M, Berrahou A, Clooster M. Contribution to the physicochemical study of the surface waters of the Moulouya wadi. (Oriental Morocco), Larhyss Journal. 2011;9(5):149-169.

Hunt WF, Lord B, Loh B, Sia A. Plant selection for bioretention systems and stormwater treatment practices, Springer Briefs in Water Science and Technology; 2015.

Mimeche L, Debabeche M, Mancer H. Analysis of the purifying power of a phragmite australis implanted filter for the treatment of wastewater in a semi-arid climate - Biskra Region. Journal International Environmental Conflict Management, Santa Catarina – Brazil, 2012;1:10-15.

Mahunon SER, Aina MP, Akowanou AVO, Kouassi EK, Kouassi YB, Kopoin A. Optimization process of organic matter removal from wastewater by using Eichhornia crassipes. Environmental Science and Pollution Research. 2018;25 (29):29219-29226.

Ntakiyiruta P, Briton BGH, Nsavyimana G, Adouby K, Nahimana D, Ntakimazi G. Combined actions of eichhornia crassipes and Pistia stratiotes for tertiary treatment of effluent from the facultative basins of the Buterere wastewater treatment plant, Burundi. International Journal of Biological and Chemical Sciences. 2020;14(24):63-75.

Mpawenayo PC, Ntakiyiruta P, Rucakumugufi D. Tertiary treatment of wastewater in the natural lagoon system by Phytoremediation: case of the Buterre wastewater treatment plant, Burundi. Africa Science. 2022;20(2):131-145.

Iurchenko, V., Radionov, M., Ivanin, P., Melnikova, O. 2020. Journal of Ecological Engineering, Volume 21, Issue 8, pp 146–155.

Ting WHT, Tan IAW, Salleh SF, Wahab NA. Application of water hyacinth (Eichhornia crassipes) for phytoremediation of ammoniacal nitrogen : A review. Journal of Water Process Engineering. 2018;22:239 249.

Mollier A. Modeling soil-plant transfer of phosphorus in agroecosystems. Doctoral thesis from the University of Bordeaux. France; 2016.

Nobile C. Phytoavailability of phosphorus in agricultural soils of Reunion Island fertilized over the long term with organic residues: is the input dose the only determinant to take into account. Doctoral thesis from the University of Réunion, 2017.

Eutamene, R. Chemical precipitation of phosphates in fluidized bed: hydrodynamic, thermodynamic, kinetic and environmental assessment. Thesis from Badji Mokhtar University. Annaba. Algeria; 2022.

Taktek, S. Biological dissolution of phosphates: Bacteria – mycorrhizae interaction. Doctoral thesis in agri-food microbiology. University of Laval. Quebec. Canada; 2015.

Atakpa-Bassabi F, Kanda M, Badjare B, Atato A, Batawila K, Akpagana K. Phytoremediative potentialities of water hyacinth (Eichhornia crassipes) in the purification of wastewater in Togo. Rev. Mar. Sci. Agron. Vet. 2023;11(4):577-585.

Benrejdal, F, Ghoualem, H. Use of an aquatic plant for the purification of rainwater in the Algiers region. Biological treatment by filters planted with macrophytes. Algerian Journal of Environmental Science and Technology December edition. 2017;3(3)-B.

Kurniawan A, Khasanah K, Jayatri FNM. Study on the Application of Phytoremediation of phosphate content to eutrophication in cengklik reservoir. international conference on disaster management and climate change IOP Conf. Series: Earth and Environmental Science. Universitas Gadjah Mada, Yogyakarta, Indonesia. Universitas Gadjah Mada, Yogyakarta, Indonesia. 2022; 55281.