Effects of polyculture on nutrient removal from residential raw sewage using field-scale artificial floating islands DOI Creative Commons
Zhaozhe Chen, Audrey H. Sawyer, Jiyoung Lee

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 377, С. 124562 - 124562

Опубликована: Фев. 22, 2025

Nutrient pollution poses a significant challenge to global water bodies, particularly from non-point sources due their diffuse nature. This study investigated the effectiveness of Artificial Floating Islands (AFIs) as phytoremediation technology address this issue. We constructed and monitored field-scale AFI system in equalization basin wastewater treatment plant for preliminary residential raw sewage. Focusing on polyculture two native aquatic plants - Carex comosa (bristly sedge) Eleocharis obtusa (blunt spike-rush) we assessed how influenced nutrient assimilation evaluated overall performance systems under natural conditions. Our results showed that simultaneously affected plants' capacity biomass production. The potential competition within promoted growth C. while suppressing E. obtusa. enhanced tissues was mainly attributed its increased Additionally, observed negative correlation between pH storage total oxidized nitrogen (NO2- + NO3-), ammonium (NH4+), orthophosphate (PO43-), with highest occurring at near-neutral 7.5. Environmental factors such temperature interacted effects assimilation, showing sensitivity these factors. Throughout study, AFIs exhibited peak values 2968 mg/m2 NH4+, 1767 PO43-, 12 NO2- NO3-, outperforming monoculture AFIs. Notably, did not average but demonstrated higher greater robustness varying environmental These findings highlight using extend operational lifespan, enhance performance, reduce constructional costs managing pollution.

Язык: Английский

Effects of polyculture on nutrient removal from residential raw sewage using field-scale artificial floating islands DOI Creative Commons
Zhaozhe Chen, Audrey H. Sawyer, Jiyoung Lee

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 377, С. 124562 - 124562

Опубликована: Фев. 22, 2025

Nutrient pollution poses a significant challenge to global water bodies, particularly from non-point sources due their diffuse nature. This study investigated the effectiveness of Artificial Floating Islands (AFIs) as phytoremediation technology address this issue. We constructed and monitored field-scale AFI system in equalization basin wastewater treatment plant for preliminary residential raw sewage. Focusing on polyculture two native aquatic plants - Carex comosa (bristly sedge) Eleocharis obtusa (blunt spike-rush) we assessed how influenced nutrient assimilation evaluated overall performance systems under natural conditions. Our results showed that simultaneously affected plants' capacity biomass production. The potential competition within promoted growth C. while suppressing E. obtusa. enhanced tissues was mainly attributed its increased Additionally, observed negative correlation between pH storage total oxidized nitrogen (NO2- + NO3-), ammonium (NH4+), orthophosphate (PO43-), with highest occurring at near-neutral 7.5. Environmental factors such temperature interacted effects assimilation, showing sensitivity these factors. Throughout study, AFIs exhibited peak values 2968 mg/m2 NH4+, 1767 PO43-, 12 NO2- NO3-, outperforming monoculture AFIs. Notably, did not average but demonstrated higher greater robustness varying environmental These findings highlight using extend operational lifespan, enhance performance, reduce constructional costs managing pollution.

Язык: Английский

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