Nnaji, P.C., Anadebe, V.C., Ezemagu, I.G. and Onukwuli, O.D. (2022) Potential of Luffa cylindrica Seed as Coagulation-Flocculation (CF) Agent for the Treatment of Dye Wastewater: Kinetic, Mass Transfer, Optimization and CF Adsorption Studies. Arabian Journal of Chemistry, 15, Article ID: 103629.
https://doi.org/10.1016/j.arabjc.2021.103629

has been cited by the following article:

• TITLE: Use of Natural Coagulants in Removing Organic Matter, Turbidity and Fecal Bacteria from Hospital Wastewater by Coagulation-Flocculation Process

  AUTHORS: Lyde A. S. Tometin, Odilon M. Nonfodji, Waris K. Chouti, Marius Dannon, Akim Aboubakari, Jacques K. Fatombi

  KEYWORDS: Hospital Wastewater, Fecal Bacteria, Organic Matter, Natural Coagulants, Removal

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.14 No.11, November 3, 2022

  ABSTRACT: Hospital wastewater represents an infectious and toxic risk to human health and the environment due to its contents. Most hospitals in developing countries, including Benin, do not have a wastewater treatment plant. In this study, the wastewater from two hospitals in northern Benin was characterized and then treated with Azadirachta indica leaves, Moringa oleifera and Luffa cylindrica seeds by coagulation/flocculation process. The wastewater characteristics showed that the collected samples are greatly polluted by organic matter and fecal bacteria such as Escherichia coli, Enterococcus fecal and Total coliforms. Jar-test results revealed that 95.74%, 78%, 49.19% of turbidity, 51.35%, 38.32%, 22.19% of COD, 93.16%, 85.26%, 83.30% against Escherichia coli, 92.11%, 90.93%, 94.60% against total Coliforms and 99.37%, 91%, 99%, 55.07% against Enterococcus were removed from hospital wastewater using Moringa oleifera, Luffa cylindrica seed and Azadirachta indica leaves respectively at dose of 100 mg/L. The results highlighted that the natural coagulants could be successfully used for the removal of turbidity and fecal bacteria from hospital wastewater.