| Title |
Recovering ammonium from real treated wastewater by zeolite packed columns: The effect of flow rate and particle diameter |
| ID_Doc |
21569 |
| Authors |
Muscarella, SM; Laudicina, VA; Di Trapani, D; Mannina, G |
| Title |
Recovering ammonium from real treated wastewater by zeolite packed columns: The effect of flow rate and particle diameter |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.scp.2024.101659 |
| Abstract |
Nitrogen (N) recovery from wastewater is a desirable way to create a (N) neutral society in view of a circular economy approach. Nitrogen recovery from wastewater by employing adsorption columns filled with zeolite can be a very attractive solution. This study assessed the effect of influent flow rates (namely, 1.6 and 2.3 L h -1 ) and particle diameters (namely, 0.5-1.0 and 2.0-5.0 mm) of zeolite packed in columns on recovering NH 4 + from real domestic treated wastewater (RDTWW). Findings revealed that maximum NH 4 + recovery can be achieved by using zeolite with the smallest particle diameter (0.5-1.0 mm) and the highest influent flow rate (2.3 L h -1 ). The maximum NH 4 + adsorption rate was 1.2, 21 and 9.8 mg NH 4 + kg -1 h -1 after 205, 32 and 35 h of operation. NH 4 + adsorption data were analysed by fitting them to both pseudofirst and pseudo-second order kinetic models. The former model best approximated NH 4 + adsorption data. Such a result suggested that the amount of NH 4 + adsorbed depended solely on the amount of NH 4 + in contact with the zeolite surface. Results successfully established the application of zeolite-packed columns in removing NH 4 + from real domestic treated wastewater and the effects of process parameters. |
| Author Keywords |
Ammonium adsorption rate; Ammonium adsorption kinetics; Ammonium removal efficiency; Wastewater ultrafiltration; Circular economy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001259491700001 |
| WoS Category |
Chemistry, Multidisciplinary; Green & Sustainable Science & Technology; Environmental Sciences |
| Research Area |
Chemistry; Science & Technology - Other Topics; Environmental Sciences & Ecology |
| PDF |
https://doi.org/10.1016/j.scp.2024.101659
|