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A near-zero-discharge recirculating aquaculture system with 3D-printed poly (lactic acid) honeycomb as solid carbon.
Zhao, Feng; Song, Guoxin; Li, Hongjing; Wu, Yanlin; Dong, Wenbo.
Affiliation
  • Zhao F; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.
  • Song G; Department of Chemistry, Fudan University, Shanghai 200433, China.
  • Li H; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.
  • Wu Y; School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209, China. Electronic address: wuyanlin@fudan.edu.cn.
  • Dong W; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China; Shanghai institute of pollution control and ecological security, Shanghai 200092, China. Electronic address: wbdong@fudan.edu.cn.
Sci Total Environ ; 953: 176097, 2024 Nov 25.
Article in En | MEDLINE | ID: mdl-39245379
ABSTRACT
A novel near-zero-discharge recirculating aquaculture system was successfully set up and ran for six months or above. A uniquely designed and 3D printed poly (lactic acid) (PLA) structure was applied as carbon source. The system achieved over 50 % daily nitrogen removal capability and maintained a low NO3-N level of <0.5 mg/L. Steady water quality was observed throughout the experiment period. Microbial distribution was studied and top abundant microorganisms and their general functions in carbon and nitrogen utilization were discussed. Denitrification and L-glutamate formation were identified as two main nitrogen pathways. The cooccurrence network connecting various genera and multiple functions was revealed. Subtilisin was one important PLA degrading enzymes in the system.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polyesters / Carbon / Aquaculture / Printing, Three-Dimensional / Nitrogen Language: En Journal: Sci Total Environ Year: 2024 Document type: Article Affiliation country: China Country of publication: Netherlands
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polyesters / Carbon / Aquaculture / Printing, Three-Dimensional / Nitrogen Language: En Journal: Sci Total Environ Year: 2024 Document type: Article Affiliation country: China Country of publication: Netherlands