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Research progress and prospects in nitrogenous wastewater treatment technologies
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Wulin YANG1, 2, 3, Xiaojun WANG4, Yamei MA1, Yuqian SHI4, Chengcheng JI1, Zhengfang YE1, Chao LI1, 2, 3
Environmental Engineering | 2026, 44(3) : 11 - 29
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Environmental Engineering | 2026, 44(3): 11-29
Research progress and prospects in nitrogenous wastewater treatment technologies
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Wulin YANG1, 2, 3, Xiaojun WANG4, Yamei MA1, Yuqian SHI4, Chengcheng JI1, Zhengfang YE1, Chao LI1, 2, 3
Affiliations
  • 1College of Environmental Sciences and Engineering,Peking University,Beijing 100871,China
  • 2State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems,Beijing 100871,China
  • 3The Key Laboratory of Water and Sediment Sciences,Ministry of Education,Beijing 100871,China
  • 4Gansu Yinguang Chemical Industry Group Co. Ltd.,Baiyin 730900,China
Published: 2026-03-22 doi: 10.13205/j.hjgc.202603002
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Nitrogenous pollutant discharges are rising with urbanization and industrialization, and their untreated release worsens aquatic nitrogen pollution. Currently, nitrogen removal from municipal and industrial wastewater is transitioning from an energy-intensive model to strategies emphasizing pollution reduction, carbon mitigation, and synergistic efficiency. Green and sustainable nitrogen removal technologies represent a key research frontier in water pollution control. This review systematically examined nitrogen pollution in China's wastewater, characterized nitrogen-laden industrial effluents, and highlighted challenges such as wide concentration ranges, complex compositions, and treatment recalcitrance. Based on this analysis, this paper comprehensively reviewed the principles and applications of advanced nitrogen removal technologies, including physicochemical, biological, electrochemical/bioelectrochemical, and advanced oxidation processes. Their treatment efficiency, advantages, and limitations were analyzed, with special emphasis on the application of advanced oxidation processes for refractory nitrogenous pollutants. Future efforts should prioritize adopting low-energy, low-chemical-consumption biological nitrogen removal processes, integrate electrochemical and advanced oxidation processes with conventional methods, enhance overall treatment efficiency, and reduce costs. These advancements are pivotal for achieving China's Dual Carbon Goals and advancing sustainable development.

nitrogen removal from wastewater  /  nitrogenous pollutants  /  physicochemical methods  /  biological/electrochemical technologies  /  advanced oxidation processes
Wulin YANG, Xiaojun WANG, Yamei MA, Yuqian SHI, Chengcheng JI, Zhengfang YE, Chao LI. Research progress and prospects in nitrogenous wastewater treatment technologies[J]. Environmental Engineering, 2026 , 44 (3) : 11 -29 . DOI: 10.13205/j.hjgc.202603002
Year 2026 volume 44 Issue 3
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Article Info
doi: 10.13205/j.hjgc.202603002
  • Receive Date:2025-11-27
  • Online Date:2026-06-25
  • Published:2026-03-22
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History
  • Received:2025-11-27
  • Revised:2025-12-26
  • Accepted:2026-01-04
Affiliations
    1College of Environmental Sciences and Engineering,Peking University,Beijing 100871,China
    2State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems,Beijing 100871,China
    3The Key Laboratory of Water and Sediment Sciences,Ministry of Education,Beijing 100871,China
    4Gansu Yinguang Chemical Industry Group Co. Ltd.,Baiyin 730900,China
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https://castjournals.cast.org.cn/joweb/hjgc/EN/10.13205/j.hjgc.202603002
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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