TECHNOLOGY SCOUTING FOR SOLID WASTE TREATMENT: TRIZ APPROACH
This paper presents a case study aimed at identifying and forecasting the most promising technologies for solid waste treatment, a problem that affects the entire world. To achieve this objective, the authors used a recently developed TRIZ Roadmap for Technology Scouting that employs such TRIZ tools as Main Parameters of Value (MPV) analysis, Voice of the Product (VOP), QEA-screening, and Trends of Engineering System Evolution (TESE) analysis. As a result of using this roadmap, it was found that the most promising technologies for solid waste treatment in the near future are those that involve gasification of waste at higher temperatures (up to 2000°C) in nearly anoxic conditions, which excludes combustion. The advantages of these technologies are: (1) they provide almost complete conversion of waste organics into synthesis gas, (2) they maximize recovery of metals, glass, and other secondary raw materials from inorganic residue, (3) they do not require careful preliminary sorting or sophisticated pre-treatment of waste, and (4) they are suitable for processing large volumes of waste (up to 1000 t / day). Additionally, the potential emissions of hazardous products, such as dioxins, furans and tar are eliminated, which means that these technologies can be implemented in residential areas, close to the final consumers of the generated synthesis gas and inorganic by-products. The TRIZ Roadmap for Technology Scouting used in this case study can be useful for finding technologies to solve other environmental problems, as it ultimately leads to effective solutions for saving and recycling all kinds of resources available in nature.
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