Yee Van Fan

Circular Economy Waste Management System Integrating Smart Cities, Smart Industry and Smart Agriculture

Školitel: Prof Dr Ing Jiří Jaromír Klemeš, DSc, Dr h c (mult)

Instituce: Brno University of Technology, Faculty of Mechanical Engineering

Obor: Design and Process Engineering


O mém projektu

“Smart” and circular economy are the buzzwords which had received a lot of attention in academic research, and municipality/government strategy plans. These concepts share the common goal progressing towards sustainability. Smart concept highlights the utilises of information and communication technologies (IOT) to supply information for an efficient management. Circular economy stress on closing the loop, trying to achieve no “leakage” system. One of the main issues for closing the circular economy loop is transforming waste into secondary raw materials. The utilisation of waste as resources can scale down the demand of extraction of new resources and avert the impacts created along the processing chain. This is critical to support the transition from a linear to a circular economy. My motivation to develop a novel methodology facilitating the sustainable waste handling decision making contribute towards circular economy and integration of smart cities, industries and agriculture, is further strengthen by the increasing waste or by-product generation problem. The waste generation incurs additional costs for collection, treatment and disposal as well as creating environmental issues such as GHG emission, air, ground and water pollution. World Bank (2018) stated that municipal solid waste (MSW) alone is expected increase to 2.2 x 109 t by 2025. Czech Republic is one of the EU countries where the waste per capita is growing. The share of municipal waste landfilled in the Czech Republic is about 50 % (European Parliament, 2017). There is still a considerable distance to achieve the 2030 target (<10 %). A comprehensive assessment model and supported by appropriate engineering tools in identifying sustainable solutions with minimal impacts to the environment are needed to achieve the smart and circular concepts. Various approaches have been introduced to identify the suitable waste treatment options and management system. However, it is still one of the world’s largest and critical management challenges. The aim of this study is to develop a novel methodology for an integrated waste management system towards the sustainable circular economy and closer to the real world for implementation. The novel contributions of this study are: (a) Development of secondary resources treatment and management Composite Curve by Pinch Methodology. (b) Development of embedding Circular Economy thinking in waste management through the P-graph. (c) Combination of the developed model (by using Pinch and P-graph) with fuzzy logic modelling for a waste management system closer for implementation. (d) Suggestion of a waste management system for Brno city with the use of developed methodology, with expanded scope in considering the waste supply, resources demand, waste characteristics and treatment options. The main features of the proposed methodology are: (a) Consider integrated solutions, maximise sustainable circular economy (b) Realistic strategies for real life implementation (c) Easy to understand (e.g. visualisation) and applicable (flexible for modification and accessible).