Hezegune eraikiak ur grisen tratamendurako

  1. Parra, Onintze 1
  2. Mijangos, Federico 1
  3. Aguado, Roberto 1
  1. 1 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

Journal:
Ekaia: Euskal Herriko Unibertsitateko zientzi eta teknologi aldizkaria

ISSN: 0214-9001

Year of publication: 2021

Issue: 41

Pages: 191-205

Type: Article

DOI: 10.1387/EKAIA.22773 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Ekaia: Euskal Herriko Unibertsitateko zientzi eta teknologi aldizkaria

Abstract

Constructed wetlands are low cost, easy to install and sustainable grey-water treatment systems, due to their capacity for removing conventional pollutants. Constructed wetlands are classifiedas free water surface flow type and subsurface flow type, being the last one more effective for wastewater treatment. Hybrid systems that combine both types of wetlands are increasingly used to harness the best of each wetland type. In order to achieve a satisfactory wastewater purification, an adequate selection of the design parameters is essential, being a key point the adequate choice of plant species. Grey-water fed to the constructed wetland contains large amounts of organic matter and nutrients, being plants and microorganisms responsible for the elimination of these pollutants. Additionally wastewater carries suspended solids and nitrogen compounds. The formers are eliminated by filtration in the gravel bed, while the latter bynitrification and denitrification. In this work, the main characteristics of the constructed wetland types and their advantages and disadvantages have been commented, as well as the characterization of the entering wastewater and a summary of the main physical, chemical and  biological processes that are carried out for the purification of water in constructed wetlands.