Effect of hydraulic retention time of sponge-based trickling filter for shrimp culture recirculating tank
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Issued Date
2025-06-01
Resource Type
ISSN
09575820
Scopus ID
2-s2.0-105002733024
Journal Title
Process Safety and Environmental Protection
Volume
198
Rights Holder(s)
SCOPUS
Bibliographic Citation
Process Safety and Environmental Protection Vol.198 (2025)
Suggested Citation
Satanwat P., Nagai M., Boonprasertsakul T., Nagano A., Okubo T., Adlin N., Watari T., Hatamoto M., Yamaguchi T., Sitthi S., Pungrasmi W., Vanichviriyakit R., Powtongsook S. Effect of hydraulic retention time of sponge-based trickling filter for shrimp culture recirculating tank. Process Safety and Environmental Protection Vol.198 (2025). doi:10.1016/j.psep.2025.107154 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/109787
Title
Effect of hydraulic retention time of sponge-based trickling filter for shrimp culture recirculating tank
Author's Affiliation
Thammasat School of Engineering
Sanki Engineering Co., Ltd.
Faculty of Science, Mahidol University
National Institute of Technology, Kisarazu College
National Institute of Technology, Oita College
Chulalongkorn University
Nagaoka University of Technology
Thailand National Center for Genetic Engineering and Biotechnology
Sanki Engineering Co., Ltd.
Faculty of Science, Mahidol University
National Institute of Technology, Kisarazu College
National Institute of Technology, Oita College
Chulalongkorn University
Nagaoka University of Technology
Thailand National Center for Genetic Engineering and Biotechnology
Corresponding Author(s)
Other Contributor(s)
Abstract
This study examined the effect of hydraulic retention time (HRT) of the sponge-based trickling filter in the recirculating aquaculture system (RAS) during the 85-day Penaeus vannamei cultivation at 1–3 kg/m3, comparing low (0.04 h; control) and high (1 h; treatment) HRTs. Operating the system at low HRT with a recirculation rate of 1.08 m3/h provided preferable conditions for nitrification, as low total ammonia nitrogen (TAN) and nitrite levels (<0.1 mg-N/L) were maintained throughout shrimp cultivation period. Likewise, the indices of TAN removal rates were higher (0.16–0.20 kg-N/m3-sponge d) with higher relative abundance of nitrifiers, including Candidatus Nitrosocosmicus (0.11–3.43 %), Nitrosomonas (0.00–0.09 %) and Nitrospira (0.17–0.70 %). On the other hand, high HRT with a recirculation rate of 0.042 m3/h contributed to solid accumulation, which was favorable for denitrification. A lower final nitrate level (31.7 mg-N/L less than control tank) was obtained, with higher nitrate removal rate indices of 0.017–0.020 kg-N/m3-sponge d. The dominant denitrifying genera included Marinicella (0.00–1.67 %), Flavobacterium (0.00–0.67 %), and Pseudomonas (0.00–0.37 %). With this process, alkalinity was generated, helping maintain pH stability (7.4 ± 0.4) and minimizing the need for bicarbonate supplementation.