Document Type
Article
Publication Date
10-1-2024
Journal / Book Title
Water Science and Technology
Abstract
The aim of the present investigation was to achieve an efficient treatment for black wastewater for non-restricted reuse. The treatment included sedimentation followed by horizontal flow constructed wetland (HF-CW), and finally chemical coagulation using magnetite (Fe3O4) nanoparticles. For the wetland, the average organic loading rate (OLR) was 42.83 biochemical oxygen demand (BOD)/m2 day and 71.30 g chemical oxygen demand (COD)/m2 day, while average surface loading rate was 0.185 m3/m2 day. The obtained results revealed that removal percentage of COD, BOD, and total suspended solids (TSS) by sedimentation followed by processing through wetlands was 80.3, 81.6, and 80%, which corresponds to 76, 42.56, and 54 mg/l, respectively. When magnetite nanoparticles were added to the HF-CW effluent at the optimum dose of 25 mg/l in combination with 10 mg/l FeCl3, the overall removal rate increased to reach 95.9, 99.1, 99.17, 92.3, 94.3, 94.3, and 91.3% for turbidity, COD, BOD, TSS, phosphate (PO4), total nitrogen (TN), and sulfide, respectively. The corresponding residual concentrations were 5 NTU, 8, 5, 18 according to table 3, 0.07, 1, and 1.04 mg/l, respectively. According to the national and international regulations, the present final treated effluent can be safely reused as a non-restricted source for agriculture purposes. The overall results revealed that the implemented study is simple, efficient, reliable, and economical, particularly for remote areas, according to the non-restricted reuse requirements.
DOI
10.2166/wst.2024.320
Journal ISSN / Book ISBN
85207293896 (Scopus)
MSU Digital Commons Citation
Abdel-Shafy, Hussein I.; Mansour, Mona; El-Khateeb, Mohamed A.; and Deng, Yang, "Integrated treatment of black wastewater using sedimentation, constructed wetland, and nanoparticles coagulation" (2024). Department of Earth and Environmental Studies Faculty Scholarship and Creative Works. 701.
https://digitalcommons.montclair.edu/earth-environ-studies-facpubs/701
Published Citation
Abdel-Shafy, H. I., Mansour, M., El-Khateeb, M. A., & Deng, Y. (2024). Integrated treatment of black wastewater using sedimentation, constructed wetland, and nanoparticles coagulation. Water Science and Technology. https://doi.org/10.2166/wst.2024.320
Comments
This publication is Open Access is being made available under a Creative Commons CC-BY 4.0 license.