Alum sludge-driven electro-phytoremediation in constructed wetlands: a novel approach for sustainable nutrient removal.

ABSTRACT: In addition to their advantages as promising methods for wastewater treatment, CWs exhibit poor performance in terms of N and P removal efficiency in the effluent of wastewater treatment plants. By focusing on this issue, we designed CWs integrated with a biochar-doped activated carbon cloth (ACC) electrode and alum sludge from water treatment plants as a substrate to achieve concomitant organic matter and nutrient removal efficiency. Compared with the use of one layer of alum sludge in CWs (CWs-C3) with ACC electrodes inserted in two layers, which uses one layer of alum sludge, a significant improvement in removal efficiency was achieved (96% for COD; 89% for TN; and 77% for TP). The findings revealed that the application of potential accompanied by the insertion of a cathode ACC electrod

SUBMITTER: Sanaei D 

PROVIDER: S-EPMC11775503 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature