دورية أكاديمية
Development and characterizations of hydrogenotrophic denitrification granular process:nitrogen removal capacity and adaptability
| العنوان: | Development and characterizations of hydrogenotrophic denitrification granular process:nitrogen removal capacity and adaptability |
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| المؤلفون: | Wang, Sike, Wang, Yajiao, Li, Peng, Wang, Li, Su, Qingxian, Zuo, Jiane |
| المصدر: | Wang , S , Wang , Y , Li , P , Wang , L , Su , Q & Zuo , J 2022 , ' Development and characterizations of hydrogenotrophic denitrification granular process : nitrogen removal capacity and adaptability ' , Bioresource Technology , vol. 363 , 127973 . https://doi.org/10.1016/j.biortech.2022.127973Test |
| سنة النشر: | 2022 |
| المجموعة: | Technical University of Denmark: DTU Orbit / Danmarks Tekniske Universitet |
| مصطلحات موضوعية: | Hydrogenotrophic denitrification, Granular sludge, Microbial community, N2O emission |
| الوصف: | Hydrogenotrophic denitrification (HD) is a promising autotrophic biological process for advanced nitrogen removal, while sludge granulation was seldom reported. This study aimed to cultivate granular sludge to improve capacity and stability of HD process. The resulting HD granular sludge performed high nitrogen removal rate (NRR) of 0.42±0.0.4 kgN/(m 3 ·d) with low accumulation of nitrite and nitrous oxide emission. HD granular sludge reactor performed over 3 times higher NRR compared to that in HD fixed-bed biofilm reactor (0.13±0.01 kgN/(m 3 ·d). Besides, granular sludge reactor could treat groundwater well even at the low temperature of 15°C. The dominant genera were Hydrogenophaga and Comamonas in granular sludge, and Dechloromonas in biofilm. Noticeably, sulfate in the groundwater stimulated the growth of sulfur converting microbes with increasing abundances of sulfite reductase gene and sulfate-reducing bacteria Desulfovibrio . This study highlights the potential implementation of HD process in granular sludge reactor for advance nitrogen removal from impaired groundwater. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | https://orbit.dtu.dk/en/publications/1537cda9-30eb-4052-a574-de6f9cbce83aTest |
| DOI: | 10.1016/j.biortech.2022.127973 |
| الإتاحة: | https://doi.org/10.1016/j.biortech.2022.127973Test https://orbit.dtu.dk/en/publications/1537cda9-30eb-4052-a574-de6f9cbce83aTest |
| حقوق: | info:eu-repo/semantics/embargoedAccess |
| رقم الانضمام: | edsbas.5D8DCAE9 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.biortech.2022.127973 |
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