Application of Biofloc-Down flow hanging sponge system to remove nitrogen components in recirculating zero water exchange aquaculture system

被引：6

作者：

Wandana, Samadhi ^{[1
]}

Adlin, Nur ^{[1
]}

Satanwat, Penpicha ^{[2
]}

Pungrasmi, Wiboonluk ^{[3
]}

Kotcharoen, Wilasinee ^{[4
]}

Takeuchi, Yutaka ^{[5
]}

Watari, Takahiro ^{[6
]}

Hatamoto, Masashi ^{[6
]}

Yamaguchi, Takashi ^{[1
,6
]}

机构：

[1] Nagaoka Univ Technol, Dept Sci Technol Innovat, Nagaoka 9402188, Japan

[2] Thammasat Univ, Thammasat Sch Engn, Dept Civil Engn, Pathum Thani 12120, Thailand

[3] Chulalongkorn Univ, Fac Engn, Dept Environm Engn, Bangkok 10330, Thailand

[4] Kanazawa Univ, Dept Biol Sci & Technol, Kanazawa, Japan

[5] Kanazawa Univ, Noto Ctr Fisheries Sci & Technol, Kanazawa, Japan

[6] Nagaoka Univ Technol, Dept Civil & Environm Engn, Nagaoka 9402188, Japan

来源：

BIORESOURCE TECHNOLOGY | 2024年 / 413卷

关键词：

Ammonia removal; Denitrification; Gordonia; Heterotrophic nitrification; And Oreochromis niloticus; MICROBIAL COMMUNITY; PERFORMANCE; NITRIFICATION; MYCOBACTERIA; QUALITY; GROWTH; SLUDGE;

D O I：

10.1016/j.biortech.2024.131496

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study presents a novel approach to sustainable aquaculture by integrating biofloc technology (BFT) with a compact down-flow hanging sponge (DHS) reactor. The integrated BFT-DHS system effectively removed nitrogen compounds while maintaining ammonia-nitrogen (NH4+-N) concentrations below 1 mg-N L-1 without water exchange. Application of this system in a tank bred with juvenile Oreochromis niloticus showed a high NH4+-N removal rate of up to 97 % and nitrite (NO2- -N) concentrations were maintained at 0.1 +/- 0.1 mg-N L-1. Microbial analysis revealed Gordonia as the predominant genus in the biofloc contributing to heterotrophic nitrification, while the Peptostreptococcaceae family dominated the DHS reactor. Heterotrophic nitrification seemed to be the primary process for enhanced nitrogen removal. Pathogenic bacteria, Vibrio sp. was absent throughout the study. This study highlights the potential integration of BFT and DHS system for sustainable aquaculture practice with effective nitrogen removal.

引用

页数：9

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