Estimación del potencial de calentamiento global en un sistema de potabilización de un acueducto municipal en Colombia

Martha Lucía Barrera Pérez; Omar Alberto Ávila; Ligia Beleño Montagut

doi:10.24054/01204211.v1.n1.2020.206

Estimación del potencial de calentamiento global en un sistema de potabilización de un acueducto municipal en Colombia

BISTUA REVISTA DE LA FACULTAD DE CIENCIAS BASICAS ◽

10.24054/01204211.v1.n1.2020.206 ◽

2021 ◽

Vol 18 (1) ◽

pp. 11-16

Author(s):

Martha Lucía Barrera Pérez ◽

Omar Alberto Ávila ◽

Ligia Beleño Montagut

Keyword(s):

Climate Change ◽

Iso 14040

Este este estudio presenta los resultados de la evaluación de impactos ambientales (IA) asociados a la potabilización de 1 m3 de agua cruda, en dos plantas de tratamiento de agua potable (PTAP) del Acueducto Metropolitano de Bucaramanga (AMB), con y sin bombeo, en la etapa de distribución. La metodología aplicada fue el Análisis de Ciclo de Vida según la NTC-ISO-14040/14044:2007, uso del software SimaPro 9.0, método de evaluación IMPACT 2002+ V2.15 y el IPCC (lntergovernamental Panel on Climate Change) 2013 GWP 20a V1.03. De la evaluación ambiental, se obtuvo que el mayor IA fue la ecotoxicidad acuatica en 75,8% por presencia de aluminio y acrilamida en 95% y 4%; seguido del calentamiento global, energía no renovable y no cancerigenos en un 6% cada impacto, en relación a la emisión de CO2, NO2, SO2 y material particulado en 62%, 18%, 8,3% y 12% respectivamente. Finalmente, se determinó el potencial del calentamiento global para la PTAP sin bombeo en 0,10 kg CO2eq/m3 agua potable y de 0,51 kg CO2eq/m3 agua potable para la PTAP con bombeo. La evaluación realizada analizó los efectos de las emisiones a corto plazo en un periodo de integración de 20 años, así como la predicción de los efectos de los GEI (gases de efecto de invernadero) a largo plazo en tiempos largos de integración a 100 y 500 años.

Download Full-text

GHG emissions in KG-CO2 / M2 generated by a House Type INFONAVIT

ECORFAN Journal Republic of Nicaragua ◽

10.35429/ejrn.2019.8.5.15.28 ◽

2019 ◽

pp. 10-23

Author(s):

Humberto Aceves-Gutierrez ◽

Oscar López-Chávez ◽

Santa Magdalena Mercado-Ibarra ◽

Cesar Alejandro Contreras-Quintanar

Keyword(s):

Climate Change ◽

Life Cycle ◽

Urban Growth ◽

Greenhouse Effect ◽

Human Population ◽

Building Materials ◽

Ghg Emissions ◽

Iso 14040 ◽

Fundamental Factor ◽

The Earth

Climate change is one of the main current problems, it concerns the entire human population since its effects are worldwide, especially now we have seen its consequences, according to Menghi (2007), the average global temperatures grew by more than 0.5 ° C in the last century, and the glaciers are disappearing from the earth. The greenhouse effect generated mainly by the gases of the same name (GHG), is the fundamental factor of climate change. Construction is one of the ways in which the human being contaminates in a constant way this due to urban growth and the demand for infrastructure that this generates. This research has the purpose of determining the KG-CO2 / M2 generated by a 44 m2 house of interest type INFONAVIT using the Life Cycle methodology (ACV) of the products or materials, established in ISO 14040, employee an inventory of KG-CO2 emissions from building materials, obtained from various bibliographic sources and databases and using the work volumes required to build the house. The results obtained of 161.57 Kg-CO2 / M2.

Download Full-text

Averting robo-bees: why free-flying robotic bees are a bad idea

Emerging Topics in Life Sciences ◽

10.1042/etls20190063 ◽

2019 ◽

Vol 3 (6) ◽

pp. 723-729

Author(s):

Roslyn Gleadow ◽

Jim Hanan ◽

Alan Dorin

Keyword(s):

Climate Change ◽

Computer Simulation ◽

Food Security ◽

European Countries ◽

Plant Interactions ◽

Plant Insect Interactions ◽

Native Habitat ◽

Insect Pollinators ◽

Insect Interactions

Food security and the sustainability of native ecosystems depends on plant-insect interactions in countless ways. Recently reported rapid and immense declines in insect numbers due to climate change, the use of pesticides and herbicides, the introduction of agricultural monocultures, and the destruction of insect native habitat, are all potential contributors to this grave situation. Some researchers are working towards a future where natural insect pollinators might be replaced with free-flying robotic bees, an ecologically problematic proposal. We argue instead that creating environments that are friendly to bees and exploring the use of other species for pollination and bio-control, particularly in non-European countries, are more ecologically sound approaches. The computer simulation of insect-plant interactions is a far more measured application of technology that may assist in managing, or averting, ‘Insect Armageddon' from both practical and ethical viewpoints.

Download Full-text

Modelling ecosystem adaptation and dangerous rates of global warming

Emerging Topics in Life Sciences ◽

10.1042/etls20180113 ◽

2019 ◽

Vol 3 (2) ◽

pp. 221-231 ◽

Cited By ~ 4

Author(s):

Rebecca Millington ◽

Peter M. Cox ◽

Jonathan R. Moore ◽

Gabriel Yvon-Durocher

Keyword(s):

Climate Change ◽

Global Warming ◽

Diffusion Rate ◽

Individual Species ◽

Genetic Evolution ◽

Rates Of Change ◽

Rapid Climate Change ◽

Warming Climate ◽

Intraspecies Competition ◽

High Trait

Abstract We are in a period of relatively rapid climate change. This poses challenges for individual species and threatens the ecosystem services that humanity relies upon. Temperature is a key stressor. In a warming climate, individual organisms may be able to shift their thermal optima through phenotypic plasticity. However, such plasticity is unlikely to be sufficient over the coming centuries. Resilience to warming will also depend on how fast the distribution of traits that define a species can adapt through other methods, in particular through redistribution of the abundance of variants within the population and through genetic evolution. In this paper, we use a simple theoretical ‘trait diffusion’ model to explore how the resilience of a given species to climate change depends on the initial trait diversity (biodiversity), the trait diffusion rate (mutation rate), and the lifetime of the organism. We estimate theoretical dangerous rates of continuous global warming that would exceed the ability of a species to adapt through trait diffusion, and therefore lead to a collapse in the overall productivity of the species. As the rate of adaptation through intraspecies competition and genetic evolution decreases with species lifetime, we find critical rates of change that also depend fundamentally on lifetime. Dangerous rates of warming vary from 1°C per lifetime (at low trait diffusion rate) to 8°C per lifetime (at high trait diffusion rate). We conclude that rapid climate change is liable to favour short-lived organisms (e.g. microbes) rather than longer-lived organisms (e.g. trees).

Download Full-text