Figure 1.
The process begins with research questions on life cycle assessment for municipal biowaste management, changes over time, current approaches and best practices, and methodological issues. A literature review analysis uses systematic review with bibliometric and content analysis. Next, conceptual boundaries define search terms related to biowaste, organic waste, food waste, kitchen waste, green waste, household, municipal, garden, park, restaurant, caterer, retail premises, and life cycle assessment. Databases used are Scopus and Web of Science. Selection criteria include peer reviewed articles in English and eligibility based on method, object, evidence, and network. Documents identified through Scopus searching are 513, and through Web of Science searching are 837. After automation filtering, 1046 documents remain. Then duplicates are removed, leaving 745 documents, with 301 duplicates identified. After title and abstract screening, 386 documents remain. A total of 359 documents are excluded, including 2 non journal articles, 1 non English article, 47 review papers, 107 studies not related to biowaste management, and 202 studies not related to life cycle assessment for biowaste management. Next, 369 documents are retrieved at full text. Then 17 full texts are unavailable because they are not accessible. After full text screening, 308 documents remain. A total of 61 full texts are excluded, including 38 studies not related to biowaste management, 21 studies not related to life cycle assessment for biowaste management, 1 review paper, and 1 retracted paper. The final set includes 308 documents after full text screening. Data collected include bibliometric data, methodological data, and technical data. Finally, results are reported using text, figures, tables, and network maps.FLAVIA-LCT flow diagram
Source:Gulotta et al., 2023