{"id":"https://openalex.org/A5017621614","orcid":"https://orcid.org/0000-0002-3062-4231","observed_orcids":["https://orcid.org/0000-0002-3062-4231"],"display_name":"Heinz Hiegemann","raw_author_names":["Heinz Hiegemann","Hiegemann, Heinz Dietmar"],"full_name":"Heinz Hiegemann","works_count":8,"cited_by_count":416,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5017621614","orcid":"https://orcid.org/0000-0002-3062-4231","observed_orcids":["https://orcid.org/0000-0002-3062-4231"]},"affiliations":[{"institution":{"id":"https://openalex.org/I2799953214","ror":"https://ror.org/035dzyj47","display_name":"Emschergenossenschaft","country_code":"DE","type":"government","lineage":["https://openalex.org/I2799953214"]},"years":[2025,2022,2019]},{"institution":{"id":"https://openalex.org/I904495901","ror":"https://ror.org/04tsk2644","display_name":"Ruhr University Bochum","country_code":"DE","type":"education","lineage":["https://openalex.org/I904495901"]},"years":[2019,2017,2016]}],"last_known_institutions":[{"id":"https://openalex.org/I2799953214","ror":"https://ror.org/035dzyj47","display_name":"Emschergenossenschaft","country_code":"DE","type":"government","lineage":["https://openalex.org/I2799953214"]}],"topics":[{"id":"https://openalex.org/T10564","display_name":"Wastewater Treatment and Nitrogen Removal","count":7,"subfield":{"id":"https://openalex.org/subfields/2310","display_name":"Pollution"},"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/T10284","display_name":"Anaerobic Digestion and Biogas Production","count":5,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11231","display_name":"Microbial Fuel Cells and Bioremediation","count":5,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"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/T10016","display_name":"Adsorption and biosorption for pollutant removal","count":1,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"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/T10210","display_name":"Advanced oxidation water treatment","count":1,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11231","display_name":"Microbial Fuel Cells and Bioremediation","value":3.34e-05,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"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/T10564","display_name":"Wastewater Treatment and Nitrogen Removal","value":2.81e-05,"subfield":{"id":"https://openalex.org/subfields/2310","display_name":"Pollution"},"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/T10284","display_name":"Anaerobic Digestion and Biogas Production","value":1.89e-05,"subfield":{"id":"https://openalex.org/subfields/2215","display_name":"Building and Construction"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14252","display_name":"Water and Wastewater Treatment","value":8.4e-06,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10210","display_name":"Advanced oxidation water treatment","value":3.3e-06,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"94061648","wikidata":"https://www.wikidata.org/wiki/Q336191","display_name":"Wastewater","score":0.7057762742042542},{"id":"57442070","wikidata":"https://www.wikidata.org/wiki/Q221275","display_name":"Sewage treatment","score":0.6662245392799377},{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.5860421657562256},{"id":"87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","score":0.5200164318084717},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.4242999851703644}],"counts_by_year":[{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":202},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":44},{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":165},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2022,"works_count":1,"oa_works_count":0,"cited_by_count":5},{"year":2025,"works_count":2,"oa_works_count":1,"cited_by_count":0}],"display_name_alternatives":["Heinz Hiegemann","Hiegemann, Heinz Dietmar"],"block_key":"h hiegemann","works_api_url":"https://api.openalex.org/works?filter=author.id:A5017621614","updated_date":"2026-10-12T12:34:37","created_date":"2025-10-10T00:00:00"}