Magnetic water treatment in a wastewater treatment plant: Part I - sorption and magnetic particles

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:281

Article

Castelo-Grande, Teresa¹  Augusto, Paulo A.^1,2  Rico, Javier²  Marcos, Jorge²  Iglesias, Roberto²  Hernandez, Lorenzo²  Barbosa, Domingos¹ 

[1] Univ Porto, Fac Engn, LEPABE Lab Proc Engn Environm Biotechnol & Energy, Rua Dr Roberto Frias, P-4200465 Porto, Portugal

[2] Univ Salamanca, Fac Ciencias Quim, Dept Ingn Quim & Text, Plaza Los Caidos 1-5, E-37008 Salamanca, Spain

关键词: Wastewater;    Treatment;    Magnetic particles;    Sorption;    Real effluents;    Contaminants;    COD;    Phosphates;    Sulfates;    Nitrites;    Nitrates;    Total nitrogen;    Detergents;    Heavy metals;   

DOI  :  10.1016/j.jenvman.2020.111872

来源: Elsevier

【 摘 要 】

The application of magnetic sorption to treat wastewaters is nowadays seen as a potential industrial method. In this work we apply magnetite particles to remediate real wastewater samples, with several contaminants competing for the same active sorption center at the same time. We also apply our studies at three different sampling points of a Wastewater Treatment Plant. In general terms, magnetite particles have shown a very good behaviour concerning the reduction of detergents and COD, while phosphates and total nitrogen, and the majority of heavy metals are high to moderately removed. The influence of the type of wastewater (i.e., sampling point) has also shown to be important especially for high concentration of contaminants.

【 授权许可】

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