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Effect and Mechanism of Pseudomonas cepacia and Anaerobic Granular Sludge Co-culture in the Treatment of U(Ⅵ)-containing Wastewater
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Qian JIANG, Qiuyun KONG, Runyi PENG, Yao YAN, Taotao ZENG
Hydrometallurgy of China | 2026, 45(3) : 372 - 382
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Hydrometallurgy of China | 2026, 45(3): 372-382
• Experiment Research •
Effect and Mechanism of Pseudomonas cepacia and Anaerobic Granular Sludge Co-culture in the Treatment of U(Ⅵ)-containing Wastewater
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Qian JIANG, Qiuyun KONG, Runyi PENG, Yao YAN, Taotao ZENG
Affiliations
  • Hunan Province Key Laboratory of Pollution Control and Resource Reuse Technology, University of South China, Hengyang　421001, China
Published: 2026-06-20 doi: 10.13355/j.cnki.sfyj.2026.03.012
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For treatment of uranium-containing wastewater, a co-culture system comprising Pseudomonas cepacia and anaerobic granular sludge (PC-AnGS) was constructed, and its performance and underlying mechanisms for removing of U(Ⅵ) was systematically investigated. The results show that the removal rate of U(Ⅵ) is as high as 94.2% under the optimal conditions of initial pH=7.0, PC-AnGS dosage of 2 g/L, contact time of 10 h and temperature of 35 ℃. The results of adsorption kinetics and isotherm analysis indicate that the adsorption process conforms to the pseudo-second-order kinetics and Langmuir isothermal adsorption model, and is dominated by monolayer chemical adsorption. The control test and SEM, FT-IR, XPS and other characterization results confirm that the PC-AnGS system uses the synergistic effect of the two components to adsorb and fix U(Ⅵ) mainly through the rich functional groups on the surface, and then partial mineralization and reduction. The research results can provide certain technical reference for the bioremediation of uranium-containing wastewater.

Pseudomonas  /  anaerobic granular sludge  /  uranium  /  microbial adsorption  /  wastewater treatment
Qian JIANG, Qiuyun KONG, Runyi PENG, Yao YAN, Taotao ZENG. Effect and Mechanism of Pseudomonas cepacia and Anaerobic Granular Sludge Co-culture in the Treatment of U(Ⅵ)-containing Wastewater[J]. Hydrometallurgy of China, 2026 , 45 (3) : 372 -382 . DOI: 10.13355/j.cnki.sfyj.2026.03.012
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Year 2026 volume 45 Issue 3
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doi: 10.13355/j.cnki.sfyj.2026.03.012
  • Receive Date：2025-12-23
  • Online Date：2026-09-11
  • Published：2026-06-20
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  • Received：2025-12-23
  • Revised：2026-03-09
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    Hunan Province Key Laboratory of Pollution Control and Resource Reuse Technology, University of South China, Hengyang　421001, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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