{"id":"https://openalex.org/keywords/urban-mining","display_name":"urban mining","description":"Urban mining is the recovery and reuse of valuable materials from products, buildings, and infrastructure that have reached the end of their use.","display_name_alternatives":["urban mine extraction","urban mine"],"ids":{"openalex":"https://openalex.org/keywords/urban-mining","wikidata":"https://www.wikidata.org/wiki/Q2500233"},"primary_topic":{"id":"https://openalex.org/T12017","display_name":"Recycling and Waste Management Techniques","score":0.2789,"subfield":{"id":"https://openalex.org/subfields/2311","display_name":"Waste Management and Disposal"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12017","display_name":"Recycling and Waste Management Techniques","score":0.2789,"subfield":{"id":"https://openalex.org/subfields/2311","display_name":"Waste Management and Disposal"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11091","display_name":"Extraction and Separation Processes","score":0.1592,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":2839,"cited_by_count":30254,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/urban-mining","updated_date":"2026-10-20T04:07:40","created_date":"2026-09-30T00:00:00"}