Waste Flow Mapping: Improve sustainability and realize waste management values

• An efficient Waste Management System creates increased business value contributing to manufacturing industry sustainability and realizes economic opportunities. Previous studies have shown the economic potential of improving material efficiency by climbing the waste hierarchy and turning waste liabilities into assets. World economic forum also identifies innovation for resource efficient solutions and business models as the most strategic option to capture value in industry. The main responsibility for waste lies with the operations owner but since waste management usually is operated by other functions or companies, supportive methods to include material waste in operational development are needed. The main purpose of the research has therefore been to develop a method framework for identifying and analysing potentials for waste management in manufacturing industry, including residual material values of metals, combustible and inert waste, process fluids and other hazardous waste. Case studies were conducted to find economically competitive environmental improvements on team, site and multisite level and to define suitable performance indicators for continuous improvements. A novel approach: waste flow mapping (WFM), combining Value Stream Mapping (VSM), Eco mapping and a waste composition analysis with basic lean principles is used. The material’s value flow and the information flow is analysed in a VSM. Eco-mapping is used to give a graphical structure for the analysis of labour and equipment, with subsequent costs. Finally the waste hierarchy and composition analysis is used to imply the potential for business improvements and best practice examples are used. The developed method reveals the potential in an easy way and support integration of waste management in operations and continuous improvement work.Empirical data from a full scale multi-site study of waste management of material residuals at a global manufacturing company’s operations in Sweden are used to exemplify that with the WFM approach the mapping can be done in an efficient and consistent manner, revealing value losses and improvement potentials. Fraction definitions and operational practice standards were essential to realise cost efficiency and reach a more sustainable footprint. Comparisons between sites show that with simple actions, substantial improvements in recycling efficiency can be made, leading to proposed performance indicators and highlighting the need for established standardized implementation solutions. The results further point out the importance of avoiding mixing material with lower quality grade of that material. The experiences prove that Waste Flow Mapping is a suitable method to efficiently identify sustainability improvement potentials.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering (hsv//eng)

Nyckelord

Innovation and Design

innovation och design

Publikations- och innehållstyp

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