Circular economy: closing the catalyst loop with metal reclamation from spent catalysts, industrial waste, waste shells and animal bones

2021 ◽  
Author(s):  
Abarasi Hart
Keyword(s):  
Circular Economy ◽  
Industrial Waste ◽  
Animal Bones ◽  
Spent Catalysts

Assessment of wood industrial pollutants based on emission coefficients in China

Holzforschung ◽  
2020 ◽  
Vol 74 (11) ◽  
pp. 1071-1078
Author(s):  
Jie Chu ◽  
Anuj Kumar
Keyword(s):  
Sustainable Development ◽  
Circular Economy ◽  
Industrial Waste ◽  
Water Discharge ◽  
Medium Density Fiberboard ◽  
Oxygen Demand ◽  
Low Carbon ◽  
The Sustainable Development ◽  
Waste Gas ◽  
Industrial Gases

AbstractThe implementation of circular economy in wood industries is an effective way for future sustainable development. The wood industries in China are not in the direction of circular economy approach due to less availability of assessment/calculation data of pollutants as per life cycle assessment (LCA) criteria. The present study focuses on the calculation of emission and pollutants from wood industries as per LCA; the emission and pollution data were collected from fiberboard Medium-density fiberboard (MDF), plywood and particleboard (PB) production. The comparative analysis of dust emissions, industrial waste gases and chemical oxygen demand (COD) were performed among three wood industries. The results revealed that the fiberboard industry was the highest emitter of dust, industrial waste gas and COD; and particleboard industry was the least emitter. Further, results indicated that pollutant index of wood industries were significantly changed between 2015 and 2017; the industrial waste water discharge increased five folds and the COD, dust and industrial gases increased two times. This study provides with the emission and pollutants data of wood industries as per LCA to promote the sustainable development for circular and low carbon economics.

scholarly journals A review of the valorization and management of industrial spent catalyst waste in the context of sustainable practice: The case of the State of Kuwait in parallel to European industry

2019 ◽  
Vol 37 (11) ◽  
pp. 1127-1141 ◽  
Author(s):  
Sultan Majed Al-Salem ◽  
Achilleas Constantinou ◽  
Gary Anthony Leeke ◽  
Sanaa Hafeez ◽  
Tayeba Safdar ◽  
...  
Keyword(s):  
Waste Management ◽  
Industrial Waste ◽  
The State ◽  
Chemical Recovery ◽  
Spent Catalyst ◽  
World Region ◽  
Spent Catalysts ◽  
The State Of Kuwait ◽  
Sustainable Practice ◽  
Recovery Methods

Industrial solid waste management encompasses a vital part of developed and developing countries strategies alike. It manages waste generated from vital industries and governs the hazardous waste generated as a major component of integrated waste management strategies. This article reviews the practices that govern the management approaches utilized in the developed world for industrial spent catalysts. It critically assesses the current situation of waste management within the developing world region focusing on the industrial waste component, in a novel attempt to crucially develop a strategy for a way forward based on best practices and future directions with major European industries. The review also draws parallels with European countries to compare their practices with those of the State of Kuwait, which rely solely on landfilling for the management of its industrial waste. Spent catalysts recovery methods are discussed at length covering conventional methods of valuable metals and chemicals recovery (e.g., hydrometallurgical, solid–liquid and liquid–liquid extraction) as well as biological recovery methods. A major gap exists within regulations that govern the practice of managing industrial waste in Kuwait, where it is essential to start regulating industries that generate spent catalysts in-view of encouraging the establishment of valorization industries for metal and chemical recovery. This will also create a sustainable practice within state borders, and can reduce the environmental impact of landfilling such waste in Kuwait.

scholarly journals From metal-containing industrial waste towards circular economy of metals: European Training Network SOCRATES

2018 ◽  
Vol 96 (2) ◽  
pp. 59-61 ◽  
Author(s):  
I. Korolev ◽  
K. Yliniemi ◽  
M. Haapalainen ◽  
M. Lundström
Keyword(s):  
Circular Economy ◽  
Industrial Waste ◽  
European Training

scholarly journals Uso de nutrientes tecnológicos como materia prima en la fabricación de materiales de construcción en el paradigma de la economía circular

Respuestas ◽  
2017 ◽  
Vol 22 (1) ◽  
pp. 6 ◽  
Author(s):  
Alejandra Sarabia-Guarin ◽  
Jorge Sánchez-Molina ◽  
Juan Carlos Leyva-Díaz
Keyword(s):  
Circular Economy ◽  
Building Material ◽  
Industrial Waste ◽  
Building Materials ◽  
Scientific Information ◽  
Nutrient Recycling ◽  
Construction Sector ◽  
Construction Process ◽  
Economic Sectors ◽  
Waste Reuse

Antecedentes: El sector de la construcción es uno de los sectores económicos en Colombia con mayor crecimiento, generando grandes cantidades de residuos como producto del proceso de construcción, y/o demolición, o en su defecto en la fabricación de los materiales de construcción. Objetivo: facilitar el acceso a información académicocientífica actualizada sobre reciclaje de residuos industriales y su aplicación en la fabricación de materiales de construcción. Así mismo se emplea el término de economía circular, el cual hace referencia a la integración de las actividades de reducción (consumo de energía y residuos), reutilización y recuperación durante la producción, el intercambio y consumo. Conclusión: además de reducir la contaminación generada por los residuos de los sectores productivos, con el aprovechamiento de los subproductos ha sido posible mejorar ciertas propiedades tecnológicas de estos materiales de construcción.Palabras Clave: economía circular, materiales de construcción, nutriente tecnológico, reciclaje, residuos industriales.AbstractBackground: The construction sector is one of the economic sectors with the highest growth in Colombia, generating large amounts of waste as a result of the construction process, and / or demolition, or otherwise in the building material manufacturing. Objective: to facilitate the access to updated academic-scientific information on recycling of industrial waste and its application for the building material manufacturing. Moreover, the concept of circular economy is used, which refers to the integration of the reduction activities (energy consumption and waste),reuse and recycling during the production, exchange and consumption. Conclusion: in addition to the reduction of the pollution generated by waste from the productive sectors, certain technological properties of these building materials have been improved through the use of waste. Keywords: circular economy, building materials, technological nutrient, recycling, industrial waste.

Agro-industrial waste enzymes: perspectives in circular economy

2021 ◽  
pp. 100585
Author(s):  
Luisa Fernanda Rojas ◽  
Paola Zapata ◽  
Laura Ruiz-Tirado
Keyword(s):  
Circular Economy ◽  
Industrial Waste

The Study on Recovery Vehicle Scheduling Problem of Industrial Waste Recycling

2011 ◽  
Vol 120 ◽  
pp. 148-153
Author(s):  
Xiao Nan Zhang ◽  
Hou Ming Fan ◽  
Jia Shu Li
Keyword(s):  
Circular Economy ◽  
Industrial Waste ◽  
Effective Means ◽  
Waste Recycling ◽  
Vehicle Scheduling ◽  
Industrial Wastes ◽  
Scheduling Problem ◽  
Ant Colony Optimization Algorithm ◽  
Full Load ◽  
Industrial Parks

In recent years, china are paying attention to the development of the circular economy and the ecological industrial parks, industry, as the industry of the largest emissions of industrial waste, the circular economy is more concern by people. The recovery transport process of industrial waste recycling is the important part of the industrial circular economy, reasonable scheduling solution is the effective means to improve the recovery and processing speed of industrial wastes and make the cost of recycling lower. In this paper, through analysis and research the recovery transport links of industrial waste recycling, points out that the vehicle scheduling problem of industrial waste recycling is the scheduling problem combined full load with not-full load, and for this problem, build vehicle scheduling optimization model, use ant colony optimization algorithm to solve it, and that achieved good results.

scholarly journals Circular Economy Strategies: Use of Corn Waste to Develop Biomaterials

2021 ◽  
Vol 13 (15) ◽  
pp. 8356
Author(s):  
Hernán Darío Castaño Castrillón ◽  
Carlos Mario Gutiérrez Aguilar ◽  
Beatriz Elena Angel Álvarez
Keyword(s):  
Circular Economy ◽  
Fast Food ◽  
Industrial Waste ◽  
Food Packaging ◽  
Raw Materials ◽  
Raw Material ◽  
Practical Case ◽  
Material Base ◽  
Environmental Component ◽  
Efficient Manufacturing

The circular economy is a process through which elements that have already been used are reincorporated and given a second use so that they can reduce the consumption of virgin raw materials. This article shows how, from the reuse of an agro-industrial waste such as corn husks, a biomaterial can be developed that manages to standardize the properties of materials such as paper and cardboard, thus allowing the development of single-use products that replace the excessive expense of materials such as polymers. In this article, it will be possible to show how from the process of transforming an agro-industrial waste into a raw material base, it is possible not only to reduce the number of raw materials discarded but also to redesign a product that not only contributes to the environmental component but also facilitates the processes of economic sustainability when generating products. As a practical case, a comparison is made between traditional fast-food packaging and how from these, a new packaging proposal can be generated, which starts from the principles of circular economy and complements sustainable design processes to make more efficient manufacturing of the mentioned product.

scholarly journals CIRCULAR ECONOMY MODEL FOR RECYCLING WASTE RESOURCES UNDER GOVERNMENT PARTICIPATION: A CASE STUDY IN INDUSTRIAL WASTE WATER CIRCULATION IN CHINA

2019 ◽  
Vol 26 (1) ◽  
pp. 21-47 ◽  
Author(s):  
Kai-wen Shen ◽  
Lin Li ◽  
Jian-Qiang Wang
Keyword(s):  
Waste Water ◽  
Circular Economy ◽  
Industrial Waste ◽  
Government Intervention ◽  
Early Stage ◽  
Practical Experience ◽  
Economic Benefits ◽  
Water Circulation ◽  
Development Mode ◽  
Industrial Waste Water

A circular economy (CE) is proposed to mitigate resource shortage and environmental pollution. Given the inevitable conflict between the new development mode and traditional economic benefits, practical experience shows that CE implementation needs the support of outside forces, such as government policy interventions or environmental organisations’ propaganda guidance. On the basis of existing studies, the present work establishes a systematic economic model in accordance with the characteristics, objectives and principles of CE. The equilibrium solution and critical condition of government and non-government participation models are obtained through game analysis. We select the industrial waste water circulation of some provinces in China to illustrate the feasibility and effectiveness of the proposed model. Overall, our results indicate that the gap between the critical price and unit processing cost determines the promotion of CE and government intervention. Moreover, government intervention is critical to building a waste management department in its early stage.

Sign in / Sign up

Export Citation Format

Share Document