研究目的
Investigating the removal of geosmin (GSM) and 2-methylisoborneol (MIB) from recirculating aquaculture systems (RAS) using UV-TiO2 photocatalysis.
研究成果
The UV-TiO2 photocatalysis was effective in removing GSM and MIB in batch mode but showed limited effectiveness in continuous flow mode. The process had no negative effects on water treatment systems in RAS, indicating its potential for safe integration into aquaculture systems.
研究不足
The continuous flow application showed poor removal of GSM and MIB, likely due to lower residence time and low initial concentrations. The study also noted a slight decrease in performance over time in batch mode, possibly due to solid deposition or bacterial growth on the plates.
1：Experimental Design and Method Selection:
The study involved testing a novel AOP consisting of immobilized TiO2 in a UV reactor at bench scale for removal of GSM and MIB in both batch and continuous flow modes.
2：Sample Selection and Data Sources:
Samples were collected from a full-scale RAS and a bench-scale RAS designed based on a
3：004% scale down of the full-scale system. List of Experimental Equipment and Materials:
The UV-TiO2 reactor included TiO2 coated glass plates and two T5 8-watt fluorescent GE Blacklight Blue bulbs. A Masterflex L/S peristaltic pump was used for recirculation.
4：Experimental Procedures and Operational Workflow:
The reactor was operated in batch and continuous flow modes to evaluate the removal efficiency of GSM and MIB.
5：Data Analysis Methods:
GSM and MIB analyses were performed by Solid Phase Micro-extraction (SPME) and GC/MS. Water quality parameters were analyzed using standard methods.
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