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    The process performance of partial denitrification of a novel anaerobic fermentation integrated fixed-film activated sludge (IFAS-AFPD) of Enteromorpha was studied. The response surface method was used to determine the optimal reaction conditions, and the operation experiment was carried out under the optimal conditions. The results showed that the nitrogen removal effect was the best when the salinity was 12.2 g•L-1, the Carbon-Nitrogen ratio (C/N) was 4, the pH was 8.5, and the Nitrite Accumulation Rate, Nitrate Removal Rate, Chemical Oxygen Demand Utilization Rate could reach 77%, 89% and 51%. Experimental results have shown that the NAR of the Enteromorpha ferment liquid system could be maintained at about 74%, which was noteworthy higher than that of the sodium acetate (CH3COONa) system at 42%; Microbial community analysis showed that Enteromorpha ferment liquid was more beneficial to the growth of Bacteroidetes than CH3COONa. Copyright © 2023 Elsevier Ltd. All rights reserved.


    Yiming Yu, Guanghui Chen, Deshuang Yu, Yanling Qiu, Songjie Li, Enhui Guo. Novel nitrogen removal process in marine aquaculture wastewater treatment using Enteromorpha ferment liquid as carbon. Bioresource technology. 2023 Jun;377:128913

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    PMID: 36934904

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