This study aimed to investigate the behavioral shifts of constructed wetland (CW) when the treated water was changed from domestic wastewater to mariculture wastewater. The results showed that the average removal efficiencies of ammonium nitrogen (⁠⁠), total nitrogen and chemical oxygen demand (COD) were 29.54, 46.07 and 57.15% in mariculture wastewater, respectively, which were significantly lower than those in domestic wastewater (71.35, 66.34 and 74.98%, respectively). While there was no significant difference in the removal efficiency of nitrate and phosphate (P > 0.05) between the two systems. Based on the analysis of bacterial community and adsorption properties, the results further indicated that the removal mechanism of between both systems was mainly due to substrate adsorption: the maximum adsorption capacity of on the substrate in mariculture wastewater was 5,432 mg kg⁻¹, whereas that in domestic wastewater was 18,033 mg kg⁻¹. In terms of bacterial communities, the dominant bacteria at the family level were Victivallaceae (18.63%) in domestic wastewater and Porphyromonadaceae (18.37%) in mariculture wastewater, which showed the significant alteration to the bacterial community. In conclusion, this study showed that conventional CW could be used for treating wastewater from land-based marine aquaculture, while the operating conditions needed to be optimized in the process of application.

本研究旨在调查当处理水从生活废水变为海水养殖废水时人工湿地 (CW) 的行为变化。显示的结果表明，铵态氮的平均去除率（⁠ ⁠），总氮和化学需氧量（COD）为29.54，46.07和57.15％的海水养殖废水，分别，其中除那些生活污水中被显著降低（71.35， 66.34% 和 74.98%）。而两种系统对硝酸盐和磷酸盐的去除效率没有显着差异（P > 0.05）。基于对细菌群落和吸附特性的分析，结果进一步表明，两个系统之间主要是由于底物吸附：海水养殖废水中底物的最大吸附量为5,432 mg kg ^-1，而生活废水中的最大吸附量为18,033 mg kg ^-1。在细菌群落而言，在家庭层面的优势菌为Victivallaceae（18.63％），生活污水和Porphyromonadaceae（18.37％）在海水养殖废水，这表明了显著改动的细菌群落。综上所述，本研究表明，常规CW可用于处理陆基海水养殖废水，但在应用过程中需要优化操作条件。