Sustainable soil amendments to improve nature-based solutions for wastewater treatment and resource recovery

Martínez-Hernández, V. and Meffe, R. and Hernández-Martín, J. and Alonso-González, A. and De Santiago, A. and De Bustamante, I. (2020) Sustainable soil amendments to improve nature-based solutions for wastewater treatment and resource recovery. Journal of Environmental Management, 261. p. 110255. ISSN 03014797

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Official URL: http://dx.doi.org/10.1016/j.jenvman.2020.110255

Abstract

Vegetation Filters (VFs) can be a sustainable solution to treat wastewater and to recover resources such as nutrients, water and biomass from small municipalities and isolated dwellings. However, under certain conditions, the leakage of nutrients, especially of nitrate, can represent a limitation. The addition of two sustainable soil amendments, woodchips and biochar, has been tested as a strategy to improve nutrient attenuation in VFs increasing sorption sites and microbial activity. To this end, unsaturated infiltration and batch experiments have been carried out at laboratory scale. The systems for infiltration experiments contain natural soil, natural soil amended with woodchips and natural soil amended with biochar. To determine the sorption capacity of NH4þ, batch tests were performed using an amendment/SWW ratio of 1:20 and an NH4þinitial concentration ranging from 30 to 600 mg L

Item Type: Article
Uncontrolled Keywords: Vegetation filter Soil amendments Nutrients Wastewater treatment Woodchips Biochar
Subjects: Q Science > Q Science (General)
Depositing User: Mª Virtudes Martínez Hernández
Date Deposited: 03 Mar 2020 17:03
Last Modified: 04 Mar 2020 10:56
URI: http://eprints.imdea-agua.org:13000/id/eprint/1150

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