scholarly journals Can biogas, generated from cattle waste reduce negative externalities? A case of study in argentina

2020 ◽  
Vol 23 (54) ◽  
pp. 129-144
Author(s):  
Gabriela Cristiano ◽  
Claudia Buitrago

Lately, Argentina has been promoting renewable energies by implementing several programs. Agroindustrialactivities generate organic waste, which could be treated to mitigate the negative externalities it causes. In this work the results proposed regarding the volume of biogas generation from waste were estimated for a firm in the Corfo region in the province of Buenos Aires. We present an alternative to reduce negative externalities and improve environment through the transformation of biomass into caloric energy, considering the case of a multiproduct firm, in which waste can be the input to produce a new output (biogas and biofertilizer). We determined that, from the effluent generated by 500 heads of cattle, it is possible to obtain 10.125 m3 of biogas/ month, which could be sold or used by the agrarian firm for self-consumption, diminishing its costs.

2020 ◽  
Vol 17 (11) ◽  
pp. 5020-5024
Author(s):  
Ciro Rodriguez ◽  
Doris Esenarro ◽  
Jorge Jave ◽  
Fabiola Martínez ◽  
Juan Puma ◽  
...  

The proposal of a renewable energy theme park aims to sensitize the use of clean energy, the integration of ecotourism as an economic activity and environmental sustainability of the population of Tomas in Peru, to turn it into an identity reference point regional and local. For this, the green axis is composed of a series of elements such as thematic squares, vegetation segments, recreation, and incorporation of renewable energies. The bioclimatic architectural design of the theme park is related to the balance of nature’s surroundings, so a series of renewable energy prototypes is proposed in a theme park that takes advantage the use of natural resources from sunlight, radiation, winds, organic waste, among others, which are the components of the proposal. Likewise, interactive education is considered among the resident population of Tomas, and with their renewable resources are the pillars, to sensitize visitors, in caring for the environment.


2019 ◽  
Vol 11 (21) ◽  
pp. 6139 ◽  
Author(s):  
Grigorios Kyriakopoulos ◽  
Vasilis Kapsalis ◽  
Konstantinos Aravossis ◽  
Miltiadis Zamparas ◽  
Alexandros Mitsikas

A circular economy (CE) is conceptualized under different rounds of materials and energy cycling flows and is a matter of a three-level deployment: inter-enterprise circulation, regional circulation, and social circulation. Regarding them, the aim of this research was to get an update on the current technological advances and the perspectives of its implementation. Thus, a multi-parametric approach has been conducted to analyze the functionality of technologies in wastewater treatment, organic waste management, agrarian development, and food waste in the context of CE. Beside the narrative of the technological view, a critical approach assimilates the environmental, marketing, economic, governmental, and procedural viewpoints and leads to key indicators which are subject to positive and negative externalities. Due to this co-existence, we denoted the complexity of CE principle implementation and the need for specific envisage in each case, while proposing strategies are formulated in the light of social-environmental impact. Finally, further research gaps were proposed for deeper consideration.


1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.


1998 ◽  
Vol 26 (152) ◽  
pp. 576
Author(s):  
Oscar H. del Brutto Perrone ◽  
José Antonio Bueri ◽  
Antonio Culebras ◽  
Jordi Matías-Guiu Guía ◽  
Marco Tulio Medina Hernández ◽  
...  
Keyword(s):  

2018 ◽  
Vol 36 (2) ◽  
pp. 173-197
Author(s):  
Juliet McMains

This paper interrogates the history of same-sex dancing among women in Buenos Aires' tango scene, focusing on its increasing visibility since 2005. Two overlapping communities of women are invoked. Queer tangueras are queer-identified female tango dancers and their allies who dance tango in a way that attempts to de-link tango's two roles from gender. Rebellious wallflowers are women who practice, teach, perform, and dance with other women in predominantly straight environments. It is argued that the growing acceptance of same-sex dancing in Argentina is due to the confluence of four developments: 1) the rise of tango commerce, 2) innovations of tango nuevo, 3) changing laws and social norms around lesbian, gay, bisexual, and transgender rights, and 4) synergy between queer tango dancers and heterosexual women who are frustrated by the limits of tango's gender matrix. The author advocates for increased alliances between rebellious wallflowers and queer tangueras, who are often segregated from each other in Buenos Aires' commercial tango industry.


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