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Zhang, Ying; Sun, Xuejian; Wang, Fan; Su, Ting; Yang, Siwen; Ai, Shengshu; Bian, Dejun; Huo, Hongliang
Journal of environmental management, April 2024, 2024-Apr, 2024-04-00, 20240401, Letnik: 357Journal Article
In this research, we established an enhanced aerobic biological method utilizing a high-density bacterial flora for the treatment of low-biochemical plating parts washing wastewater. The elucidation of pollutant removal mechanisms was achieved through a comprehensive analysis of changes in sludge characteristics and bacterial community structure. The results demonstrated that throughout the operational period, the organic load remained stable within the range of 0.01–0.02 kgCOD/kgMLSS·d, the BOD5/COD ratio increased from 0.004 mg/L to 0.33 mg/L, and the average removal rates for key pollutants, including COD, NH4+-N, and TN, reached 98.13%, 99.86%, and 98.09%. MLSS concentration remained at 7627 mg/L, indicating a high-density flora. Notably, Proteobacteria, Bacteroidota, and Acidobacteriota, which have the ability to degrade large organic molecules, had been found in the system. This study affirms the efficacy of the intensive aerobic biological method for treating low-biochemical plating washing wastewater while ensuring system stability. •Efficient degradation of organic matter in difficult-to-biodegrade industrial wastewater by high-density colony bioprocesses.•Degradation mechanism of organic matter in electroplating wastewater degraded by high-density colony bioprocess is clarified.•Demonstration of the feasibility of biological processes for the treatment of wastewater with low biochemical properties.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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