Effects of photocatalysis using a photocatalytic concrete board on water qualities and microbial communities in the aquaculture wastewater
Effects of photocatalysis using a photocatalytic concrete board on water qualities and microbial communities in the aquaculture wastewater
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DOI：
10.1016/j.seppur.2023.123517
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发表时间：
2023-05
影响因子：
8.6
通讯作者：
Xu Zhang;Li Zhou;Mingxiu Cai;Naxin Cui;G. Zou;Qian Wang
中科院分区：
文献类型：
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作者：
Xu Zhang;Li Zhou;Mingxiu Cai;Naxin Cui;G. Zou;Qian Wang
将复合光催化剂（茶多酚还原P25/Ag 3 PO 4）涂敷在混凝土板上，用于水产养殖废水的处理。光催化氧化显著抑制了藻类生长，叶绿素a浓度降低了60.66%。同时，光催化降解有机物，改变氮的形态。光催化反应后营养物质和有机物的变化影响了微生物群落，导致养殖环境发生变化。光催化反应并没有增加处理后的水产养殖水的急性毒性所示的发光细菌。本研究为光催化氧化法处理水产养殖废水的可行性提供了新的思路。
A concrete board coated with a composite photocatalyst (tea polyphenols reduced P25/Ag3PO4) was applied in the aquaculture wastewater treatment. The photocatalytic oxidation inhibited algal growth significantly and decreased the chlorophyll-a concentration by 60.66%. Meanwhile, organic matter was degraded and the nitrogen form was changed during photocatalytic processes. The variations in nutrients and organic matter after the photocatalytic reaction affected the microbial communities resulting in the aquaculture environment changes. The photocatalytic reaction did not increase the acute toxicity of the treated aquaculture water as indicated by a luminescent bacterium. This study provided new insights into the feasibility of employing photocatalytic oxidation as a realistic method for aquaculture wastewater treatment.