Biodepuration of domestic sewage, textile effluents and acid mine drainage using starch-based xerogel from recycled potato peels

Francisco Javier Roque Rodrí­guez, Karla Diaz, Midwar Ancco, Daniela Delgado, Kevin Tejada

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Water is a finite resource. Its safety and cleanliness are highly important to meet current and future human needs. Compared to other resources, water represents a main factor to achieve development in several areas and leads to economic progress of a nation. However, in recent years, the excessive demographic and industrial growth has exacerbated water contamination. In this study, the biodepuration process of domestic sewage (DS), textile effluents (TE) and acid mine drainage (AMD) is conducted using starch-based xerogel from potato (Solanum tuberosum) peels. Results showed that the treatment is effective to achieve the reduction of 5-day biochemical oxygen demand. The most important result was the achievement of heavy metals removal for the three components. Firstly, there was a reduction of barium, zinc, and cadmium (91, 60 and 46%, respectively) for raw AMD. Secondly, there was a reduction in the levels of zinc, aluminum, and barium (89, 86 and 64%, respectively) for TE biodepuration. Finally, results showed a reduction in zinc, iron and cadmium levels (81, 78 and 57%, respectively) for DS biodepuration.

Original languageEnglish
Pages (from-to)1250-1261
Number of pages12
JournalWater Science and Technology
Volume77
Issue number5
DOIs
StatePublished - Mar 2018
Externally publishedYes

Bibliographical note

Funding Information:
Authors acknowledge the financial support from the Office of the Vice Chancellor for research of Universidad Católica de Santa María (Arequipa, Peru).

Publisher Copyright:
© IWA Publishing 2018.

Keywords

  • Biodepuration
  • Potato peels
  • Starch
  • Wastewater and xerogel

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