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Abstract
The production of personal hygiene and body products generates wastewater with a high load of surfactants, a high chemical oxygen demand (COD), and abundant oils and greases. Aluminum sulfate (AS) and two solutions of natural coagulant from Moringa oleifera Lam. seeds prepared with a 1M NaCl solution and 1.5M NaCl solution were used. Aluminum sulfate, Moringa oleifera Lam. in 1M NaCl, and Moringa oleifera Lam. in 1.5M NaCl solutions reduced turbidity at rates 94.48%, 98.07%, and 97.87%; reduced COD at rates 46.36%, 49.15%, and 42.7%; and reduced oil and grease at rates 98.72%, 78.65%, and 97.41%, respectively. Mutagenicity tests with guppies showed a lower toxicity of Moringa oleifera Lam. extract compared with aluminum sulfate. This work shows that Moringa oleifera Lam. extract has high potential for use as an alternative to aluminum sulfate; therefore, this study will contribute to proposals for the sustainable treatment of effluents from the cosmetic industry.
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; Souza, Nathália Ferreira 1 ; de Lima-Faria João Marcos 2 ; Paz Andressa Tuane Santana 1 ; Scalize, Paulo Sérgio 3 ; de Sabóia-Morais Simone Maria Teixeira 2 ; Junior Humberto Carlos Ruggeri 3 ; da Conceição Edemilson Cardoso 1 1 Federal University of Goiás, Bioproducts Research, Development and Innovation Laboratory (PD&I Bioprodutos), Faculty of Pharmacy, Goiânia, Brazil (GRID:grid.411195.9) (ISNI:0000 0001 2192 5801)
2 Federal University of Goiás, Campus 2, Cellular Behavior Laboratory, Institute of Biological Sciences, Goiânia, Brazil (GRID:grid.411195.9) (ISNI:0000 0001 2192 5801)
3 Federal University of Goiás, Water Analysis Laboratory, School of Civil and Environmental Engineering, Goiânia, Brazil (GRID:grid.411195.9) (ISNI:0000 0001 2192 5801)