Eliminación de fósforo de aguas residuales utilizando concha de mejillón

  1. Manuel Conde Cid 1
  2. Remigio Paradelo Núñez 1
  3. Manuel Arias Estévez 1
  4. Esperanza Álvarez Rodríguez 2
  5. María José Fernández-Sanjurjo 2
  6. Avelino Núñez-Delgado 2
  1. 1 Universidade de Vigo
    info

    Universidade de Vigo

    Vigo, España

    ROR https://ror.org/05rdf8595

  2. 2 Universidade de Santiago de Compostela
    info

    Universidade de Santiago de Compostela

    Santiago de Compostela, España

    ROR https://ror.org/030eybx10

Book:
Solos e Água, fontes (esgotáveis) de vida e de desenvolvimento Livro de atas: VII Congresso Ibérico das Ciências do Solo (CICS 2016) VI Congresso Nacional de Rega e Drenagem, 13-15 de Setembro de 2016, Instituto Politécnico de Beja, Beja

Publisher: Sociedade Portuguesa da Ciência do Solo (SPCS)

ISBN: 978-989-99665-0-5

Year of publication: 2016

Pages: 333-336

Type: Book chapter

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Abstract

Mussel shell is a carbonate-rich by-product, which could be reused in wastewater treatment. In this work, phos- phorus removal from aqueous solutions was assessed in column experiments in the laboratory, using a calcined and a finely-ground (non-calcined) mussel shell. Calcined mussel shell presented a higher retention capacity than the non-calcined shell, which can be attributed to differences in mineralogy and composition. The process of P removal from aqueous solution showed features that are typical of chemical reactions rather than denoting ad- sorption; in particular, the percentage of P removed increased with initial P concentration in the solution, thus pointing at a relevant role of precipitation in P removal. The results corresponding to the fractionation of the P retained in the mussel shell after the experiments showed that both mechanisms, adsorption and precipitation, contributed to P removal.

Data source: Dialnet