A review of the application of cerium and lanthanum in phosphorus removal during wastewater treatment: Characteristics, mechanism, and recovery
| Autor: | George William Kajjumba, Erica J. Marti |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Environmental Engineering
Sulfates Iron Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Phosphorus Cerium General Medicine General Chemistry Wastewater Pollution Phosphates Water Purification Lanthanum Environmental Chemistry Metals Rare Earth Fertilizers Aluminum |
| Zdroj: | Chemosphere. 309:136462 |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2022.136462 |
| Popis: | Owing to their strong bond with anions, rare earth elements (REEs) are prime contenders in wastewater treatment to meet the stringent phosphorus (P) effluent quality requirements. REEs outcompete traditional metals to abate phosphorus. The application of lanthanides in wastewater treatment is mainly through adsorption, where REEs are incorporated into a carrier matrix to improve the adsorption capacity. As coagulants, information on the performance of lanthanides is lacking. In this review, the performance of major water coagulants (iron and aluminum) is discussed and compared to two lanthanides: cerium and lanthanum. The use of lanthanides as adsorbents and as coagulants is elucidated during P treatment. The recovery of P and REEs is also discussed. Where details were lacking in the literature, experiments were conducted to fill these research gaps. Using REEs as adsorbents limits their P precipitation potential; as coagulants, REE capacity is 520.79 mg P/g La |
| Databáze: | OpenAIRE |
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