| Autor: |
Ortíz-Sánchez E; Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, México., Solís-Salinas C; Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, México., Okoye PU; Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, México., Guillén-Garcés RA; Universidad Politécnica del Estado de Morelos, Jiutepec, México., Arias DM; Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, México. |
| Jazyk: |
angličtina |
| Zdroj: |
Environmental technology [Environ Technol] 2024 Mar; Vol. 45 (7), pp. 1249-1258. Date of Electronic Publication: 2022 Oct 30. |
| DOI: |
10.1080/09593330.2022.2140077 |
| Abstrakt: |
Contaminants from cooling water waste (CWW) generated by industries represent an environmental hazard if discharged into aquatic bodies and soil without treatment. Most treatment strategies are energy-demanding and costly; hence, low-cost and sustainable treatment alternative technologies are needed. The present study proposed cyanobacteria culture as a low-cost biological method to treat cooling water waste (CWW) while simultaneously producing carbohydrates. For this purpose, CWW from a cooling tower was evaluated in different dilutions with domestic wastewater (DW) (DW25% -CWW75%, DW50% -CWW50%, DW25% -CWW75%, DW100%, and CWW100%) (v/v). The CWW provided a high content of inorganic carbon and low content of N and P, which resulted in a high C/N ratio promoting a fast carbohydrate accumulation but low biomass production. In contrast, cultures with higher DW concentrations achieved similar results in 14 days. The best results were obtained with DW25% -CWW75%, achieving up to 52 ± 18% carbohydrate content on day 8, with the highest biomass concentration of 1.7 ± 0.12 g L -1 on day 14. This culture removed >94% of TAN, N-NO 3 - and P-PO 4 3- , and 84 ± 10.82% of COD. This strategy could be a promising approach to treating CWW and DW from the same industry and producing value-added products and bioenergy. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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