Abstract
Polymer enhanced ultrafiltration (PEUF) technique economically enables separation and/or retention of various heavy metal ions from aqueous solutions for environmental and engineering problems. Polyethylenimine as the water-soluble complexation agent utilized to interact with heavy metal ions of Cd and Ni as cations in ultrafiltration experiments were modeled with protonation data to understand the mechanism. Test runs showed that an enrichment coefficient (the ratio of Cd over Ni in permeate) up to 10 was obtained at pH 4.2 in the temperature range of 20-22oC, whereas full retention of both cations is possible above pH 5.0 and those results are highly compatible with the model developed.
| Original language | English |
|---|---|
| Article number | 151913 |
| Journal | Physicochemical Problems of Mineral Processing |
| Volume | 58 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2022 |
Bibliographical note
Publisher Copyright:© Wroclaw University of Science and Technology
Funding
The authors wish to express their appreciation to Istanbul Technical University-Scientific Research Projects Coordination Unit (BAP) for its support for the project (Selective separation of metals from waste waters by polymer supported ultrafiltration systems) under project number #30316.
| Funders | Funder number |
|---|---|
| Istanbul Technical University-Scientific Research Projects Coordination Unit | |
| Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi | 30316 |
Keywords
- Cadmium
- Nickel
- Polyethylenimine (pei)
- Polymer enhanced ultrafiltration
- Selective heavy metal ion retention