scholarly journals Modeling of Waste Flow in Industrial Symbiosis System at City-Region Level: A Case Study of Jinchang, China

2021 ◽  
Vol 13 (2) ◽  
pp. 466
Author(s):  
Chengpeng Lu ◽  
Xiaoli Pan ◽  
Xingpeng Chen ◽  
Jinhuang Mao ◽  
Jiaxing Pang ◽  
...  
Keyword(s):  
Flow Analysis ◽  
National Development ◽  
System Structure ◽  
Circulation Index ◽  
Industrial Symbiosis ◽  
Exhaust Gas ◽  
City Region ◽  
Waste Streams ◽  
Waste Flow ◽  
The City

Waste is increasingly used as a renewable resource. Industrial symbiosis is an innovative concept for more efficient use of waste streams within industrial complexes, with the aim of reducing the overall environmental impact of the complex. Industrial symbiosis plays a more important role in promoting green economic growth and building low-carbon cities. Based on the ecological theoretical framework, combined with Waste Flow Analysis (WFA), the material flow analysis (MFA) and production matrix methods were used as the core to construct the Industrial Symbiosis System Waste Flow Metabolism Analysis (ISSWFMA) model. In addition, taking the “Jinchang Model” as an example, a typical case selected by the National Development and Reform Commission of China’s regional circular economy development model, we conducted a refined quantitative study on the flow and metabolism of waste flow in the regional industrial symbiosis system at the City-Region level using the circulation degree index. The following conclusions were obtained from the study: The ISSWFMA model can better describe the flow and metabolism of waste streams in the industrial symbiosis system at the City-Region Level and can provide data and methods for storage management. As the internal industrial chain and the correlation between various departments continuously improved, the Circulation Index (CI) of solid waste, wastewater, and exhaust gas in the industrial symbiosis system of Jinchang City showed an overall increasing trend, the degree of recycling was continuously increasing, the industrial symbiosis ability was continuously enhanced, and the system structure was more complete. At the same time, based on the analysis of different wastes, the industrial symbiosis is developed at different stages; based on the analysis of solid wastes, the industrial symbiosis ability of Jinchang’s Industrial Symbiosis System has strengthened and accelerated the fastest from 2005 to 2010; based on the analysis of wastewater, the industrial symbiosis ability of the system strengthened slowly during the whole study period; and based on the analysis of exhaust gas, the industrial symbiosis ability of the system continued to strengthen rapidly during the whole study period. Finally, on the basis of further discussion on the selection of waste recycling paths, we proposed to give full play to the role of market mechanisms, and to build recycling areas and ecological areas by strengthening industrial symbiosis and its derived urban symbiosis to achieve the goals of natural resource conservation, ecological environment protection, and harmonious coexistence between human and nature.

scholarly journals Seeking Circularity: Circular Urban Metabolism in the Context of Industrial Symbiosis

2021 ◽  
Vol 13 (16) ◽  
pp. 9094
Author(s):  
Akvilė Feiferytė-Skirienė ◽  
Žaneta Stasiškienė
Keyword(s):  
Energy Flow ◽  
Flow Analysis ◽  
Urban System ◽  
Holistic Approach ◽  
Urban Metabolism ◽  
Economic Systems ◽  
Industrial Symbiosis ◽  
Knowledge Resources ◽  
The City ◽  
New Framework

Cities are leading in the implementation of circular economy (CE) principles and sustainable development due to the concentration of knowledge, resources and technology while remaining the highest consumers and producers of resources. CE, urban metabolism (UM) and industrial symbiosis (IS) offer a new more holistic approach based on material and energy flow analysis and materials recovery from waste by creating IS networks to support a new circular urban system (CUM) which contrast to the traditional linear extract-produce-use-dispose model of economic systems. In this paper, we present the concepts of CE, IS and CUM and how the new framework could improve cities transition to sustainability and CE, with detailed CE and IS indicators analysis. We introduce the relations between IS, CE and UM concepts, how they can be used and monitored in the CUM framework. CUM can help unite urban planners, the city’s governance and the business sector to promote collaboration across the city to improve future sustainability and circularity by closing loops.

Back to the City Region? The Future of Strategic Transport Planning in Scotland

2003 ◽  
Vol 45 (First Serie (1) ◽  
pp. 128-156 ◽  
Author(s):  
Iain Docherty ◽  
David Begg
Keyword(s):  
City Region ◽  
Transport Planning ◽  
The Future ◽  
The City

City-region governance in transitional contexts: the case of the BRICS

2019 ◽  
Vol 63 (1) ◽  
pp. 39-49
Author(s):  
Philip Harrison
Keyword(s):  
Extended Period ◽  
Political Systems ◽  
Recent Past ◽  
City Region ◽  
Scholarly Literature ◽  
Path Dependencies ◽  
City Regions ◽  
The World ◽  
The City

Abstract The bulk of the scholarly literature on city-regions and their governance is drawn from contexts where economic and political systems have been stable over an extended period. However, many parts of the world, including all countries in the BRICS, have experienced far-reaching national transformations in the recent past in economic and/or political systems. The national transitions are complex, with a mix of continuity and rupture, while their translation into the scale of the city-region is often indirect. But, these transitions have been significant for the city-region, providing a period of opportunity and institutional fluidity. Studies of the BRICS show that outcomes of transitions are varied but that there are junctures of productive comparison including the ways in which the nature of the transitions create new path dependencies, and way in which interests across territorial scales soon consolidate, producing new rigidities in city-region governance.

KUALITAS PELAYANAN DALAM PEMBANGUNAN INFRASTRUKTUR DI KECAMATAN CIAWI, KABUPATEN BOGOR

2018 ◽  
Vol 4 (2) ◽  
pp. 101
Author(s):  
Muhamad Alfian ◽  
Nandang Saefudin Zenju ◽  
Irma Purnamasari
Keyword(s):  
Quality Of Service ◽  
National Development ◽  
Infrastructure Development ◽  
National Unity ◽  
The People ◽  
Driving Wheel ◽  
Alternative Routes ◽  
The City ◽  
Quality Infrastructure

Infrastructure development is an integral part of national development and the driving wheel of economic growth. Infrastructure also has an important role in strengthening national unity and unity (Bappenas: 2009). The banjarwaru, banjarwangi, and telukpinang highways are the access roads traversed by 8 villages including alternative routes for the cicurug-sukabumi area. This road is always passed by the people who headed to the city. Therefore, the benefits of this road is very important because it is often passed from the cicurug-sukabumi area due to the diversion of traffic flow so that the intensity of high road users.In this study the author uses the theory of Ridwan and Sudrajat. Quality of service is the level of incompatibility between expectations with customer desires and also the perceptions of these customers. Quality of service here can be assessed by looking at the dimensions. These dimensions include the quality of service, the ability of officials, and service convenience. During the observation to the community through the survey to direct approach with the community, most people complained that the development service to build the kecamatan should be further improved and the results of this study showed that the Quality Assessment of Service in Road Infrastructure Development in Ciawi Sub-district Bogor Regency is categorized Fair Good this is because the assessment of the quality of development services by the Subdistrict Apparatus itself and from the community assess the ability of District Officers still have to be improved in conducting the service and its implementation.Keywords: Service Quality, Infrastructure Development.

scholarly journals A Modelling Framework for the Conceptual Design of Low-Emission Eco-Industrial Parks in the Circular Economy: A Case for Algae-Centered Business Consortia

Water ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 69
Author(s):  
Aldric S. Tumilar ◽  
Dia Milani ◽  
Zachary Cohn ◽  
Nick Florin ◽  
Ali Abbas
Keyword(s):  
Circular Economy ◽  
Carbon Capture ◽  
Fossil Fuel ◽  
Production Systems ◽  
Flow Analysis ◽  
Biofuel Production ◽  
Industrial Symbiosis ◽  
Modelling Framework ◽  
Low Emission ◽  
Energy Exchanges

This article describes a unique industrial symbiosis employing an algae cultivation unit (ACU) at the core of a novel eco-industrial park (EIP) integrating fossil-fuel fired power generation, carbon capture, biofuel production, aquaculture, and wastewater treatment. A new modelling framework capable of designing and evaluating materials and energy exchanges within an industrial eco-system is introduced. In this scalable model, an algorithm was developed to balance the material and energy exchanges and determine the optimal inputs and outputs based on the industrial symbiosis objectives and participating industries. Optimizing the functionality of the ACU not only achieved a substantial emission reduction, but also boosted aquaculture, biofuel, and other chemical productions. In a power-boosting scenario (PBS), by matching a 660 MW fossil fuel-fired power plant with an equivalent solar field in the presence of ACU, fish-producing aquaculture and biofuel industries, the net CO2 emissions were cut by 60% with the added benefit of producing 39 m3 biodiesel, 6.7 m3 bioethanol, 0.14 m3 methanol, and 19.55 tons of fish products annually. Significantly, this article shows the potential of this new flexible modelling framework for integrated materials and energy flow analysis. This integration is an important pathway for evaluating energy technology transitions towards future low-emission production systems, as required for a circular economy.

scholarly journals Anchoring the social economy at the metropolitan scale: Findings from the Liverpool City Region

Urban Studies ◽  
2020 ◽  
pp. 004209802097265
Author(s):  
Matthew Thompson ◽  
Alan Southern ◽  
Helen Heap
Keyword(s):  
Economic Development ◽  
Social Economy ◽  
Future Research ◽  
City Region ◽  
Anchor Institutions ◽  
Urban Economic Development ◽  
The Social ◽  
Social Economies ◽  
The City

This article revisits debates on the contribution of the social economy to urban economic development, specifically focusing on the scale of the city region. It presents a novel tripartite definition – empirical, essentialist, holistic – as a useful frame for future research into urban social economies. Findings from an in-depth case study of the scale, scope and value of the Liverpool City Region’s social economy are presented through this framing. This research suggests that the social economy has the potential to build a workable alternative to neoliberal economic development if given sufficient tailored institutional support and if seen as a holistic integrated city-regional system, with anchor institutions and community anchor organisations playing key roles.

State-guided city regionalism: the development of metro transit in the city region of Nanjing

2021 ◽  
pp. 1-21
Author(s):  
Liuqing Yang ◽  
Wen Chen ◽  
Fulong Wu ◽  
Yi Li ◽  
Wei Sun
Keyword(s):  
City Region ◽  
The City

Measurement and Calculation of Ventilation in the Floor of the Brewery Žirovnice

2014 ◽  
Vol 1041 ◽  
pp. 321-324
Author(s):  
Jiří Jurka ◽  
Jan Škramlík
Keyword(s):  
Air Flow ◽  
Flow Analysis ◽  
Experimental Measurements ◽  
Historic Buildings ◽  
The City ◽  
Cultural Monuments

The article discusses how to test the functionality of air insulations designed for the floor ventilation in historic buildings and follows on from the previously published articles. A flow analysis is being performed on an object of the City of Zirovnice which has been registered in the list of cultural monuments and was built as a brewery in the years 1589-1592 on the site of an older medieval building. The foundations and external brickwork consist mostly of stone. This article brings new air flow readings. The aim of the article is to analyse in detail the air flow in a specific floor void with the aid of modern CFD programs and experimental measurements using the ALMEMO device.

Measuring transit oriented development: a spatial multi criteria assessment approach for the City Region Arnhem and Nijmegen

2014 ◽  
Vol 35 ◽  
pp. 130-143 ◽  
Author(s):  
Yamini Jain Singh ◽  
Pedram Fard ◽  
Mark Zuidgeest ◽  
Mark Brussel ◽  
Martin van Maarseveen
Keyword(s):  
Transit Oriented Development ◽  
City Region ◽  
Assessment Approach ◽  
The City
Sign in / Sign up

Export Citation Format

Share Document