Combination of Microalgae Method, Decantation, and Filtration for Domestic Wastewater Treatment

Khadija El-Moustaqim, Houria El Bakraoui, Jamal Mabrouki (), Yasser Fouad, Miloudia Slaoui, Driss Hmouni, Mbadiwe S. Benyeogor and Tobore Louis Igbigbi
Additional contact information
Khadija El-Moustaqim: Improvement and Valuation of Plant Resources, Faculty of Sciences, Ibn Tofaïl University, KENITRA-University Campus, Kenitra 14000, Morocco
Houria El Bakraoui: Energy, Materials and Sustainable Development (EMDD) Laboratory, Higher School of Technology—SALE, Center of Water, Natural Resources, Environment and Sustainable Development (CERN2D), University Mohammed V in RABAT, Rabat 10100, Morocco
Jamal Mabrouki: Laboratory of Spectroscopy, Molecular Modelling, Materials, Nanomaterials, Water and Environment, CERN2D, Mohammed V University in Rabat, Faculty of Science, AV IbnBattouta, Agdal, Rabat 10106, Morocco
Yasser Fouad: Department of Applied Mechanical Engineering, College of Applied Engineering, Muzahimiyah Branch, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
Miloudia Slaoui: Laboratory of Spectroscopy, Molecular Modelling, Materials, Nanomaterials, Water and Environment, CERN2D, Mohammed V University in Rabat, Faculty of Science, AV IbnBattouta, Agdal, Rabat 10106, Morocco
Driss Hmouni: Improvement and Valuation of Plant Resources, Faculty of Sciences, Ibn Tofaïl University, KENITRA-University Campus, Kenitra 14000, Morocco
Mbadiwe S. Benyeogor: Institute of Physics, University of Munster, 48149 Munster, Germany
Tobore Louis Igbigbi: City of Cleveland Department of Public Utilities, Cleveland, OH 44114, USA

Sustainability, 2023, vol. 15, issue 22, 1-13

Abstract: Phycoremediation of wastewater with microalgae is a viable option and is considered a process for cleaning up toxic waste using microalgae or macroalgae. Most water is modified by its use and must be treated before discharge. Given this situation, and following the example of other researchers around the world, our study focuses on the filtration method and combines it with the microalgae method to treat domestic wastewater. The aim of our work is to study the effects of using the microalgae system in combination with the decontamination and filtration system to reduce the nutrient content of domestic wastewater. The coupling of the two methods produced very significant results. However, the removal efficiencies for the filtered effluent increased to 86.34%, 100%, and 91.12% for COD, ammonia, and phosphate, respectively. The algae treatment offers an ecologically safe and less expensive system for nutrient removal and eliminates the need for tertiary treatment, which refers to the filtered treatment effluent, allowing us to conclude that the Chlorella vulgaris species has a very interesting influence on dissolved oxygen and that it had a very remarkable effect on COD, with a maximum reduction that reached 80%. The results obtained show that the phosphate content of the treated wastewater was significantly reduced during the cultivation period. In time, a decrease in solids was observed within the microalgae treatment system, influenced by the use of two different types of microalgae and the incorporation of the filtration system, which is based on the use of biosorption of methylene blue by biomass. The parameters analyzed in this study are hydrogen potential (pH), ammonia (NH 3 ), phosphate ion (PO 4 3− ), chemical oxygen demand (COD), electrical conductivity (EC), total solids (TS), total dissolved solids (TDS), total suspended solids (TSS), nitrates, and dissolved oxygen (DO).

Keywords: aeration; wastewater; Microalgae; agricultural biomass; Chlorella vulgaris (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/22/16110/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/22/16110/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:22:p:16110-:d:1283580

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().