scholarly journals Locational Aspects of Industrial Ecology and Experiences of Practitioners from a Hungarian Industrial Park

2020 ◽  
Vol 9 (2) ◽  
pp. 543-556
Author(s):  
Noémi Csigéné Nagypál
Keyword(s):  
Flue Gas ◽  
Circular Economy ◽  
Power Plants ◽  
Industrial Ecology ◽  
Industrial Park ◽  
Construction Sector ◽  
Fgd Gypsum ◽  
The Relationship ◽  
Fossil Fuel Power Plants

The present article aims to contribute to understanding the relationship between the concepts of industrial ecology and circular economy in order to foster circular economy attempts. While research mostly focuses on various forms of industrial ecology or innovative technologies, it is also reasonable to analyse some mature industrial ecology practices, which can be used as quasi-models for circular economy. The technology selected for this study is flue gas desulphurisation in fossil fuel power plants and the utilization of gypsum produced in this process as a by-product by construction sector companies. In the first part of our article we briefly present the concept of industrial ecology and discuss its applicability as a potential model for circular economy as well as its locational aspects. Afterwards based on a literature review and stakeholder interviews a Hungarian power plant and industrial park is presented as a case study. The relevance of criteria of ecoinnovation parks are presented for the selected industrial park as well as the experience of industrial ecology by participating companies. Finally some general conclusions, based on the literature and the case study, are also discussed.  Keywords: industrial ecology, locational aspects, industrial park, FGD gypsum

scholarly journals Success Drivers for Implementing Circular Economy: A Case Study from the Building Sector in Colombia

2021 ◽  
Vol 13 (3) ◽  
pp. 1350
Author(s):  
Luz Elba Torres-Guevara ◽  
Vanessa Prieto-Sandoval ◽  
Andres Mejia-Villa
Keyword(s):  
Circular Economy ◽  
Small And Medium Enterprises ◽  
Implementation Process ◽  
Construction Sector ◽  
Direct Communication ◽  
Management Commitment ◽  
Medium Enterprises ◽  
Large Building ◽  
Do So

This paper contributes to the circular economy (CE) literature by investigating the drivers of success of the CE implementation in the construction sector and how those drivers can complement any implementation process in small and medium enterprises (SMEs). To do so, we analyzed the case of TECMO Estructuras Metálicas, using the methodology proposed by Jaca and colleagues to implement the CE in SMEs. It is a Colombian company with more than five decades of experience in the manufacture and installation of steel and aluminum structures for small and large building and infrastructure projects. The data were collected between August 2019 and November 2020 through direct communication with the company via workshops, meetings, and company reports. This research found that five drivers are relevant for implementing CE in the construction sector: fertile ecosystem, management commitment, identification of valuable materials, green teams, and CE intermediaries. Moreover, this study also contributes to teaching the implementation of the CE in companies, since it shows that through the methodology presented, implementation projects can be developed in postgraduate classes.

The Traceability of Construction and Demolition Waste in Flanders via Blockchain Technology: A Match Made in Heaven?

2021 ◽  
Vol 18 (4) ◽  
pp. 347-369
Author(s):  
Jonas Voorter ◽  
Christof Koolen
Keyword(s):  
Circular Economy ◽  
Construction And Demolition Waste ◽  
Waste Processing ◽  
Construction Sector ◽  
Sustainable Society ◽  
Demolition Waste ◽  
Blockchain Technology ◽  
Legal Case ◽  
Made In

Abstract The construction sector plays a crucial role in the transition to a circular economy and a more sustainable society. With this objective in mind, Flanders – the Dutch speaking part of Belgium – makes use of a traceability procedure for construction and demolition waste in order to guarantee that value can be derived from downstream waste processing activities. This article takes this traceability procedure as a legal case study and examines if the use of blockchain technology could lead to even stronger supply chains, better data management, and, more generally, a smoother transition to circular practices in the construction sector.

scholarly journals Bromine Recycling in the Chemical Industry – An Example of Circular Economy

2019 ◽  
Vol 73 (9) ◽  
pp. 737-742
Author(s):  
Francis Pilloud ◽  
Nasibeh Pouransari ◽  
Luc Renard ◽  
Rebecca Steidle
Keyword(s):  
Chemical Synthesis ◽  
Environmental Risk ◽  
Chemical Industry ◽  
Circular Economy ◽  
Closed Loop ◽  
Industrial Ecology ◽  
Real Life ◽  
Significant Safety ◽  
Recovery Yield

This paper discusses the application of the circular economy concept and industrial ecology approach in the context of industrial chemical sites. A real-life case study about the use of bromine as reactant for chemical synthesis and its recycling by Syngenta in Monthey is described in detail. With a recovery yield of 97% it represents a well-established example of closed loop recycling, one aspect of the circular economy. The process leads to significant safety and environmental risk reduction and economic savings in the order of several million CHF per year.

scholarly journals Industrial Symbiosis in Taiwan: Case Study on Linhai Industrial Park

2020 ◽  
Vol 12 (11) ◽  
pp. 4564
Author(s):  
Nathaniel John Maynard ◽  
Vaishnav Raj Kanagaraj Subramanian ◽  
Chien-Yu Hua ◽  
Shih-Fang Lo
Keyword(s):  
Economic Performance ◽  
Resource Sharing ◽  
Industrial Ecology ◽  
Government Support ◽  
Policy Support ◽  
Industrial Park ◽  
Industrial Symbiosis ◽  
Key Factors ◽  
Industrial Parks

Eco-industrial parks (EIP) are a community of manufacturing businesses which seek better environmental and economic performance by using the principles of Industrial Ecology (IE). In Taiwan, government-designated EIPs have operated since 1995, with 23 industrial parks currently in operation. This study presents a case from Taiwan, the Linhai Industrial park, and analyzes the park’s transition towards industrial symbiosis and resource sharing. Resource sharing modifications resulted in reduced carbon emissions, millions of liters of fuel saved, and thousands of tons of industrial waste recycled. This successful transition was possible because of coordinated government support. Key factors include technological subsidies, policy support, and willing manufacturers. Additional explanations for Linhai’s current success are explored and future areas of research are identified.

scholarly journals Investigation and Control Technology on Excessive Ammonia-Slipping in Coal-Fired Plants

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4249
Author(s):  
Xuan Yao ◽  
Man Zhang ◽  
Hao Kong ◽  
Junfu Lyu ◽  
Hairui Yang
Keyword(s):  
Flue Gas ◽  
Power Plants ◽  
Catalytic Reduction ◽  
Flue Gas Desulfurization ◽  
Ammonia Emission ◽  
Dust Collector ◽  
Neural Network Algorithm ◽  
Injection Technology ◽  
And Control ◽  
The Relationship

After the implementation of the ultra-low emissions regulation on the coal-fired power plants in China, the problem of the excessive ammonia-slipping from selective catalytic reduction (SCR) seems to be more severe. This paper analyzes the operating statistics of the coal-fired plants including 300 MW/600 MW/1000-MW units. Statistics data show that the phenomenon of the excessive ammonia-slipping is widespread. The average excessive rate is over 110%, while in the small units the value is even higher. A field test data of nine power plants showed that excessive ammonia-slipping at the outlet of SCR decreased following the flue-gas process. After most ammonia reduced by the dust collector and the wet flue-gas desulfurization (FGD), the ammonia emission at the stack was extremely low. At same time, a method based on probability distribution is proposed in this paper to describe the relationship between the NH3/NOX distribution deviation and the De–NOX efficiency/ammonia-slipping. This paper also did some original work to solve the ammonia-slipping problem. A real-time self-feedback ammonia injection technology using neural network algorithm to predict and moderate the ammonia distribution is proposed to decrease the NH3/NOX deviation and excessive ammonia-slipping. The technology is demonstrated in a 600-MW unit and works successfully. The excessive ammonia-slipping problem is well controlled after the implementation of the technology.

Development of copper-on-alumina catalytic materials for the cleanup of flue gas and the disposal of diluted ammonium sulfate solutions

1995 ◽  
Vol 10 (3) ◽  
pp. 553-561 ◽  
Author(s):  
G. Centi ◽  
B.K. Hodnett ◽  
P. Jaeger ◽  
C. Macken ◽  
M. Marella ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Ammonium Sulfate ◽  
Flue Gas ◽  
Industrial Development ◽  
Power Plants ◽  
Flow Sheet ◽  
Catalytic Materials ◽  
Sulfate Solutions ◽  
The Stability ◽  
The Relationship

Some aspects of the industrial development of copper-on-alumina catalytic materials for the combined removal of SO2 (DeSOx and NOx (DeNOx) from flue gas of power plants are discussed. Applications of these catalytic materials for the recovery of sulfuric acid from diluted aqueous solutions of ammonium sulfate are also outlined. In particular, the following specific topics are analyzed: (i) the relationship between textural and reactivity properties. (ii) the problem of the design of samples with improved DeSOx properties in relation to the stability of the samples over extended operations, and (iii) the optimization of the regeneration characteristics of the samples. Details on the flow sheet of the technology are also given.

scholarly journals Infrastructuring the Circular Economy

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1805 ◽  
Author(s):  
André Nogueira ◽  
Weslynne Ashton ◽  
Carlos Teixeira ◽  
Elizabeth Lyon ◽  
Jonathan Pereira
Keyword(s):  
Circular Economy ◽  
Industrial Ecology ◽  
System Level ◽  
Farmers Markets ◽  
Urban Landscapes ◽  
Power Structures ◽  
Participatory Action ◽  
Decision Making Processes ◽  
The City

The circular economy (CE), and its focus on the cycling and regeneration of resources, necessitates both a reconfiguration of existing infrastructures and the creation of new infrastructures to facilitate these flows. In urban settings, CE is being realized at multiple levels, from within individual organizations to across peri-urban landscapes. While most attention in CE research and practice focuses on organizations, the scale and impact of many such efforts are limited because they fail to account for the diversity of resources, needs, and power structures across cities, consequently missing opportunities for adopting a more effective and inclusive CE. Reconfiguring hard infrastructures is necessary for material resource cycling, but intervening in soft infrastructures is also needed to enable more inclusive decision-making processes to activate these flows. Utilizing participatory action research methods at the intersection of industrial ecology and design, we developed a new framework and a model for considering and allocating the variety of resources that organizations utilize when creating value for themselves, society, and the planet. We use design prototyping methods to synthesize distributed knowledge and co-create hard and soft infrastructures in a multi-level case study focused on urban food producers and farmers markets from the City of Chicago. We discuss generalized lessons for “infrastructuring” the circular economy to bridge niche-level successes with larger system-level changes in cities.

scholarly journals The Church Tower of Santiago Apóstol in Montilla: An Eco-Sustainable Rehabilitation Proposal

2020 ◽  
Vol 12 (17) ◽  
pp. 7104
Author(s):  
M. Araceli Calvo-Serrano ◽  
Isabel L. Castillejo-González ◽  
Francisco Montes-Tubío ◽  
Pilar Mercader-Moyano
Keyword(s):  
Environmental Economic ◽  
Circular Economy ◽  
Social Impact ◽  
Main Question ◽  
Construction Sector ◽  
15Th Century ◽  
Starting Point ◽  
Cultural Interest ◽  
The Church

Is it possible to carry out eco-sustainable rehabilitations on specially protected buildings? This is the main question and starting point for this research. We will use the tower of the Church of “Santiago Apóstol” in Montilla as a case study; with its most remote antecedents in the 15th century, it is an emblematic building of one of the most important cities in the Cordovan countryside and is listed as an Asset of Cultural Interest (Bien de Interés Cultural or BIC) as of 2001. The application of eco-efficiency criteria in the rehabilitation of this type of building might stimulate the reactivation of the construction sector in the rural area, positively impacting the promotion of a circular economy. To this end, a general methodology has been established for carrying out eco-sustainable renovations on this type of building, which defines indicators for evaluating the eco-sustainability of such interventions. This methodology is applied to the case study of this important building in Montilla to ensure that a feasible intervention has been proposed, aligned with three basic pillars of sustainability that considers its environmental, economic, and social impact.

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