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Ver términos de la licenciaRivera Ambriz, Aldo, et al. (2024). Tecnosuelos a base de concreto reciclado: efectos de la fuente de materia orgánica, biocarbón e inoculación con bacterias promotoras de crecimiento vegetal. Revista Internacional de Contaminación Ambiental; Vol. 40, 2024; 759-772. Recuperado de https://repositorio.unam.mx/contenidos/4161140
Autor(es)
Rivera Ambriz, Aldo; Rojas-Solis, Daniel; García-Villanueva, Luis Antonio; Lindig-Cisneros, Roberto
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Tecnosuelos a base de concreto reciclado: efectos de la fuente de materia orgánica, biocarbón e inoculación con bacterias promotoras de crecimiento vegetal
Fecha
2024-12-04
Resumen
Worldwide, waste from the construction and demolition sector represents 45 to 65% of the waste deposited in final disposal sites, 25% of which is concrete. It is important to seek alternatives to reuse these materials in order to reduce the environmental impact they cause, particularly when they are not disposed of properly. One option is the elaboration of technosols, which require a mineral fraction and a source of organic matter. Due to their synthetic origin, technosols usually have a poorly diverse microbiota. In the present work, technosols were designed from recycled concrete (of two textures) and organic wastes of two origins (wastewater treatment sludge, and compost). The materials were characterized and the growth of Zea mays and Albizia occidentalis was evaluated. In addition, the effect of inoculation with plant growth-promoting bacteria (PGPB) was quantified. Different crystalline structures were found in the concrete, characteristic of this material, including portlandite. The results indicate that the source of organic matter is important for plant performance, particularly for Zea mays, since the best performance was obtained in mixtures with residual sludge as a source of organic matter with coarse-textured concrete. The physical and chemical properties of the technosols and leachates varied according to the composition of the mixtures and the plant species grown. The use of PGPB was beneficial for plant growth.
Tema
life cycle; restoration; urban cultivation; ciclo de vida; restauración; cultivo urbano
Idioma
spa
ISSN
ISSN impreso: 0188-4999
