7th IMRMPT

First slide

First slide

Abstract

Abstract information

English title:	Construction and demolition waste as a solution to Environmental and Agricultural Challenges
Spanish title:	Los residuos de construcci�n y demolici�n como soluci�n a problemas ambientales y agr�colas
English abstract:	Construction and demolition waste represents a significant environmental issue, generating three times more solid waste than urban areas. Improper disposal of construction and demolition waste leads to several environmental impacts, including: (i) inappropriate dumping of waste, (ii) contamination of water sources, (iii) loss of ecosystem services due to soil and vegetation degradation, and (iv) high waste volumes. One alternative is to utilize construction and demolition waste as recycled aggregates, thereby reducing the demand for virgin materials in the construction industry. However, particles smaller than 4 mm exhibit poor performance and must be discarded. Additionally, urban areas generate substantial volumes of organic waste, which is often improperly managed and ends up in landfills, thus wasting its potential use in composting. Soil acidity is a critical factor that diminishes the productivity of Colombian soils, reducing nutrient availability and causing aluminum ion toxicity. This issue has been exacerbated by agricultural practices, where human activity has accelerated soil acidification without regard for ecological impacts. Systemic pesticides, which are absorbed by plants and distributed throughout their tissues, are effective against pests but are toxic even in small doses and persist in soil and water, thereby contributing to soil acidification. Soil, particularly concrete, contains high levels of calcium and silicon in the form of carbonates and hydrated calcium silicates, which can serve as essential nutrients to regulate soil acidity and enhance plant resistance to pests. Recent studies have demonstrated the use of residual concrete particles smaller than 4 mm as a soil conditioner, combined with mineral-solubilizing microorganisms. This combination provides nutrients, controls soil acidity, avoids toxicity, and improves soil quality, facilitating its use in agriculture or landscaping. However, collaboration with experts in artificial intelligence (AI) and the Internet of Things (IoT) is required to simulate processes and predict conditions in various tropical soils. The integration of advanced technologies and sustainable practices can offer innovative solutions for waste management and enhance agricultural productivity, thereby contributing to sustainable development.
Spanish abstract:	Los residuos de construcci�n y demolici�n representan un problema ambiental significativo, generando tres veces m�s residuos s�lidos que las �reas urbanas. La disposici�n irregular de estos residuos produce impactos como: (i) vertimientos inapropiados, (ii) contaminaci�n de fuentes de agua, (iii) p�rdida de servicios ambientales debido a la degradaci�n del suelo y la vegetaci�n, y (iv) alto volumen de residuos. Una alternativa es utilizar los residuos de construcci�n y demolici�n como �ridos reciclados, reduciendo as� la demanda de materia prima en la construcci�n. Sin embargo, las part�culas menores a 4 mm deben ser descartadas por su bajo desempe�o. Adem�s, en zonas urbanas se generan grandes vol�menes de residuos org�nicos que, en muchos casos, no son gestionados adecuadamente y terminan en rellenos sanitarios, desaprovechando su uso potencial en compostaje. La acidez del suelo es un factor clave que disminuye la productividad de los suelos colombianos, reduciendo la disponibilidad de nutrientes y causando toxicidad por iones de aluminio. Este fen�meno se ha intensificado con la agricultura, donde el hombre, sin considerar los impactos ecol�gicos, ha acelerado la acidificaci�n del suelo. Los pesticidas sist�micos, absorbidos por la planta y distribuidos por sus tejidos, son efectivos contra plagas, pero son t�xicos incluso en peque�as dosis y persistentes en el suelo y el agua, contribuyendo a la acidificaci�n del suelo. Los residuos de construcci�n y demolici�n, especialmente el concreto, contienen altos niveles de calcio y silicio en forma de carbonatos y silicatos de calcio hidratados, que pueden regular la acidez del suelo y fortalecer las plantas contra plagas. En estudios recientes, se ha utilizado concreto residual inferior a 4 mm como acondicionador del suelo, combinado con microorganismos solubilizadores de minerales. Esta combinaci�n aporta nutrientes, controla la acidez, no genera toxicidad y mejora la calidad del suelo, permitiendo su uso en agricultura o paisajismo. Sin embargo, es necesario trabajar con expertos en inteligencia artificial para emular procesos y predecir condiciones en diferentes suelos tropicales. Esta integraci�n de tecnolog�as avanzadas y pr�cticas sostenibles puede ofrecer soluciones innovadoras para la gesti�n de residuos y la mejora de la productividad agr�cola, contribuyendo as� al desarrollo sostenible.
Topic:
Presentation Type:
Speaker:

Authors

Name	Institution	Email
Erica Mej�a Restrepo	I.U pascual bravo	erica.mejia@pascualbravo.edu.co

Presentation

Room:	Principal Room
Date:	August 8, 2024
Hour:	10:50 - 11:05

Back

VI WMSSE

VI Workshop on Modeling and Simulation for Science and Engineering

Contact information:

   info@foristom.org
   @FORISTOMFound
   FORISTOMFoundation
   foristomfoundation

Copyright 2024 FORISTOM
All rights reserved

Previous editions:

I WMSSE
II WMSSE
III WMSSE
IV WMSSE
V WMSSE