Combining a novel biofilm reactor with a constructed wetland for rural, decentralized wastewater treatment

نویسندگان

چکیده

A novel waterfall aeration biofilm reactor integrated with a constructed wetland (WABR-CW) system was developed to meet the challenge of decentralized wastewater treatment focus on nutrient removal. In lab-scale experiment 70 days, WABR-CW showed high removal efficiency for COD (85–98 %), NH4+-N (100 TN (60–90 %) and TP (85 %-95 even when different organic loading rates (OLR) were used. The CW responsible improving overall performance in view an increased offers denitrification capacity OLR is not optimal WABR. Based experiment, pilot-scale built tested aquaculture reuse. total 63 m3 treated which 56.7 reused. Furthermore, microbial structure investigated. metabolic analysis highlighted N C pathways functional genes distribution system. Next generation sequencing only linked pollutants encoding but also disclosed potential ability treat more polluted complex wastewater. outcomes this study provide scale-up results better understanding functioning WABR-CW.

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ژورنال

عنوان ژورنال: Chemical Engineering Journal

سال: 2023

ISSN: ['1873-3212', '1385-8947']

DOI: https://doi.org/10.1016/j.cej.2022.140906