Novel Treatment of Sugar Mill Wastewater in a Coupled System of Aged Refuse Filled Bioreactors (ARFB): Full-Scale
| Autor: | Abumalé Cruz-Salomón, Hugo Alejandro Nájera-Aguilar, Rubén Fernando Gutiérrez-Hernández, Carlos Manuel García-Lara, Rebeca Isabel Martínez-Salinas, Juan Antonio Araiza-Aguilar, Ulises González-Vázquez |
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| Rok vydání: | 2021 |
| Předmět: |
0208 environmental biotechnology
full-scale system Full scale aged refuse Bioengineering 02 engineering and technology 010501 environmental sciences lcsh:Chemical technology 01 natural sciences sugar mill wastewater treatment aged refuse filled bioreactor lcsh:Chemistry Bioreactor anaerobic treatment Chemical Engineering (miscellaneous) COD removal lcsh:TP1-1185 Sugar Effluent 0105 earth and related environmental sciences Process Chemistry and Technology Chemical oxygen demand Contamination Pulp and paper industry 020801 environmental engineering lcsh:QD1-999 Volume (thermodynamics) Wastewater Environmental science |
| Zdroj: | Processes, Vol 9, Iss 516, p 516 (2021) Processes Volume 9 Issue 3 |
| ISSN: | 2227-9717 |
| Popis: | Sugar is the most important food supplement of our daily diet. During the production, sugar mills use a large volume of water and produce a significant amount of wastewater polluted with high organic compounds. Therefore, it is necessary to treat the wastewater before their disposal. For this reason, this article presents the results obtained from the monitoring of a coupled system of aged refuse filled bioreactors (ARFB) in full scale to treat wastewater from a sugar mill. The coupled system consists of two bioreactors (a primary one -ARFB1- and a rectification one -ARFB2-) arranged in a series with identical geometries. The ARFB1-ARFB2 system was evaluated in two stages. The first stage (maintenance period) for 28 weeks, and second stage (Zafra season) for 29 weeks. The system was fed with sugar mill wastewater (SMW) with a chemical oxygen demand (COD) of 2787 ± 1552 mg/L and 2601 ± 722 mg/L, respectively. As results, we observed a rapid stabilization of the system over 2 months. In addition, we found the ARFB1-ARFB2 system achieved an average COD removal of 94.9%, with a final effluent (E2) concentration below the maximum permissible limits of Mexican and international regulations for all analyzed parameters. Finally, the results of this study show that the ARFB1-ARFB2 full-scale novel technology is an efficient process for removal of the main contaminants that affect the wastewater from the sugar mills. |
| Databáze: | OpenAIRE |
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