{"id":"https://openalex.org/W7213613982","doi":"https://doi.org/10.1108/techs-03-2026-0072","title":"Retrofitting residential septic infrastructure for decentralised biogas production: a scenario-based circular waste-to-energy assessment in Lagos","display_name":"Retrofitting residential septic infrastructure for decentralised biogas production: a scenario-based circular waste-to-energy assessment in Lagos","publication_year":2026,"publication_date":"2026-09-19","ids":{"openalex":"https://openalex.org/W7213613982","doi":"https://doi.org/10.1108/techs-03-2026-0072"},"language":"en","primary_location":{"id":"doi:10.1108/techs-03-2026-0072","doi":"https://doi.org/10.1108/techs-03-2026-0072","is_oa":false,"landing_page_url":"https://doi.org/10.1108/techs-03-2026-0072","pdf_url":null,"source":{"id":"https://openalex.org/S4210237766","display_name":"Technological Sustainability","issn_l":"2754-1312","issn":["2754-1312","2754-1320"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-c","cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310319811","host_organization_name":"Emerald Publishing Limited","host_organization_lineage":["https://openalex.org/P4310319811"],"host_organization_lineage_names":["Emerald Publishing Limited"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Technological Sustainability","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101328888","display_name":"Ayorinde Thomas","orcid":"https://orcid.org/0000-0001-6436-6122","observed_orcids":["https://orcid.org/0000-0001-6436-6122"]},"institutions":[{"id":"https://openalex.org/I280533721","display_name":"Caleb University","ror":"https://ror.org/03z44m407","country_code":"NG","type":"education","lineage":["https://openalex.org/I280533721"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Ayorinde Joachim Thomas","raw_affiliation_strings":["Department of Architecture, Caleb University , ,"],"raw_orcid":"https://orcid.org/0000-0001-6436-6122","affiliations":[{"raw_affiliation_string":"Department of Architecture, Caleb University , ,","institution_ids":["https://openalex.org/I280533721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075664166","display_name":"Ifeoluwa Akande","orcid":"https://orcid.org/0009-0005-6438-8731","observed_orcids":["https://orcid.org/0009-0005-6438-8731","https://orcid.org/0000-0003-4650-4805"]},"institutions":[{"id":"https://openalex.org/I136632592","display_name":"Bells University of Technology","ror":"https://ror.org/009drq556","country_code":"NG","type":"education","lineage":["https://openalex.org/I136632592"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Ifeoluwa Akande","raw_affiliation_strings":["Bells University of Technology Department of Architecture, , ,"],"raw_orcid":"https://orcid.org/0009-0005-6438-8731","affiliations":[{"raw_affiliation_string":"Bells University of Technology Department of Architecture, , ,","institution_ids":["https://openalex.org/I136632592"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5121771749","display_name":"George Arerosuoghene Otuonuyo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I280533721","display_name":"Caleb University","ror":"https://ror.org/03z44m407","country_code":"NG","type":"education","lineage":["https://openalex.org/I280533721"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"George Arerosuoghene Otuonuyo","raw_affiliation_strings":["Department of Architecture, Caleb University , ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Architecture, Caleb University , ,","institution_ids":["https://openalex.org/I280533721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056238701","display_name":"Obianuju Patience Chukwuka","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I280533721","display_name":"Caleb University","ror":"https://ror.org/03z44m407","country_code":"NG","type":"education","lineage":["https://openalex.org/I280533721"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Obianuju Patience Chukwuka","raw_affiliation_strings":["Department of Architecture, Caleb University , ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Architecture, Caleb University , ,","institution_ids":["https://openalex.org/I280533721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5115678660","display_name":"Temitope Akindamini","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I31746571","display_name":"UNSW Sydney","ror":"https://ror.org/03r8z3t63","country_code":"AU","type":"education","lineage":["https://openalex.org/I31746571"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Temitope Akindamini","raw_affiliation_strings":["UNSW Department of Construction Project Management and Property Development, , ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"UNSW Department of Construction Project Management and Property Development, , ,","institution_ids":["https://openalex.org/I31746571"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5123129995","display_name":"Idris Ajibola Agbaje","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I280533721","display_name":"Caleb University","ror":"https://ror.org/03z44m407","country_code":"NG","type":"education","lineage":["https://openalex.org/I280533721"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Idris Ajibola Agbaje","raw_affiliation_strings":["Department of Architecture, Caleb University , ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Architecture, Caleb University , ,","institution_ids":["https://openalex.org/I280533721"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057262921","display_name":"Oluwagbenga M. Oso","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I29787537","display_name":"Afe Babalola University","ror":"https://ror.org/03rsm0k65","country_code":"NG","type":"education","lineage":["https://openalex.org/I29787537"]}],"countries":["NG"],"is_corresponding":false,"raw_author_name":"Oluwagbenga Martin Oso","raw_affiliation_strings":["Afe Babalola University Department of Architecture, , ,"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Afe Babalola University Department of Architecture, , ,","institution_ids":["https://openalex.org/I29787537"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"5","issue":"3","first_page":"285","last_page":"312"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10284","display_name":"Anaerobic Digestion and Biogas Production","score":0.9506999850273132,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10284","display_name":"Anaerobic Digestion and Biogas Production","score":0.9506999850273132,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11781","display_name":"Wastewater Treatment and Reuse","score":0.04580000042915344,"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/T11231","display_name":"Microbial Fuel Cells and Bioremediation","score":0.00039999998989515007,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/wastewater-characterization","display_name":"wastewater characterization","score":0.5270000100135803},{"id":"https://openalex.org/keywords/hydraulic-retention-time","display_name":"hydraulic retention time","score":0.9700000286102295},{"id":"https://openalex.org/keywords/organic-loading","display_name":"organic load","score":0.902999997138977},{"id":"https://openalex.org/keywords/techno-economic-analysis","display_name":"techno-economic analysis","score":0.8159999847412109},{"id":"https://openalex.org/keywords/multi-criteria-decision-making","display_name":"multi-criteria decision making","score":0.8690000176429749},{"id":"https://openalex.org/keywords/municipal-wastewater","display_name":"municipal wastewater","score":0.3840000033378601},{"id":"https://openalex.org/keywords/lagos","display_name":"Lagos","score":0.503000020980835},{"id":"https://openalex.org/keywords/co2-emission-reduction","display_name":"CO2 emission reduction","score":0.5509999990463257}],"concepts":[{"id":"https://openalex.org/C2778368411","wikidata":"https://www.wikidata.org/wiki/Q24662","display_name":"Retrofitting","level":2,"score":0.8044999837875366},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.48559999465942383},{"id":"https://openalex.org/C2780151969","wikidata":"https://www.wikidata.org/wiki/Q949149","display_name":"Sanitation","level":2,"score":0.45669999718666077},{"id":"https://openalex.org/C75212476","wikidata":"https://www.wikidata.org/wiki/Q171076","display_name":"Biogas","level":2,"score":0.4546999931335449},{"id":"https://openalex.org/C11105738","wikidata":"https://www.wikidata.org/wiki/Q1895805","display_name":"Multiple-criteria decision analysis","level":2,"score":0.45260000228881836},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.44040000438690186},{"id":"https://openalex.org/C548081761","wikidata":"https://www.wikidata.org/wiki/Q180388","display_name":"Waste management","level":1,"score":0.4203999936580658},{"id":"https://openalex.org/C87717796","wikidata":"https://www.wikidata.org/wiki/Q146326","display_name":"Environmental engineering","level":1,"score":0.40290001034736633},{"id":"https://openalex.org/C94061648","wikidata":"https://www.wikidata.org/wiki/Q336191","display_name":"Wastewater","level":2,"score":0.39329999685287476},{"id":"https://openalex.org/C157062255","wikidata":"https://www.wikidata.org/wiki/Q5035697","display_name":"Capital cost","level":2,"score":0.37610000371932983},{"id":"https://openalex.org/C165895018","wikidata":"https://www.wikidata.org/wiki/Q156849","display_name":"Sewerage","level":2,"score":0.3528999984264374},{"id":"https://openalex.org/C499616599","wikidata":"https://www.wikidata.org/wiki/Q555853","display_name":"Anaerobic digestion","level":3,"score":0.32269999384880066},{"id":"https://openalex.org/C107327155","wikidata":"https://www.wikidata.org/wiki/Q330268","display_name":"Decision support system","level":2,"score":0.31349998712539673},{"id":"https://openalex.org/C86251818","wikidata":"https://www.wikidata.org/wiki/Q816754","display_name":"Benchmarking","level":2,"score":0.3073999881744385},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.296999990940094},{"id":"https://openalex.org/C186116695","wikidata":"https://www.wikidata.org/wiki/Q5249226","display_name":"Decision analysis","level":2,"score":0.2809999883174896},{"id":"https://openalex.org/C47737302","wikidata":"https://www.wikidata.org/wiki/Q167336","display_name":"Greenhouse gas","level":2,"score":0.27459999918937683},{"id":"https://openalex.org/C173051318","wikidata":"https://www.wikidata.org/wiki/Q1421263","display_name":"Stormwater","level":3,"score":0.2694000005722046},{"id":"https://openalex.org/C3020383963","wikidata":"https://www.wikidata.org/wiki/Q180388","display_name":"Waste disposal","level":2,"score":0.2685999870300293},{"id":"https://openalex.org/C84250820","wikidata":"https://www.wikidata.org/wiki/Q3030793","display_name":"Hydraulic retention time","level":3,"score":0.26420000195503235},{"id":"https://openalex.org/C134560507","wikidata":"https://www.wikidata.org/wiki/Q753291","display_name":"Environmental economics","level":1,"score":0.26010000705718994}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1108/techs-03-2026-0072","doi":"https://doi.org/10.1108/techs-03-2026-0072","is_oa":false,"landing_page_url":"https://doi.org/10.1108/techs-03-2026-0072","pdf_url":null,"source":{"id":"https://openalex.org/S4210237766","display_name":"Technological Sustainability","issn_l":"2754-1312","issn":["2754-1312","2754-1320"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-c","cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310319811","host_organization_name":"Emerald Publishing Limited","host_organization_lineage":["https://openalex.org/P4310319811"],"host_organization_lineage_names":["Emerald Publishing Limited"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Technological Sustainability","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/12","display_name":"Responsible consumption and production"},{"score":0.9853000044822693,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"},{"score":0.9786999821662903,"id":"https://metadata.un.org/sdg/13","display_name":"Climate action"},{"score":0.9333000183105469,"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities"},{"score":0.9090999960899353,"id":"https://metadata.un.org/sdg/6","display_name":"Clean water and sanitation"},{"score":0.8970999717712402,"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":60,"referenced_works":["https://openalex.org/W1821938246","https://openalex.org/W1994044024","https://openalex.org/W1994307693","https://openalex.org/W2027413793","https://openalex.org/W2056972986","https://openalex.org/W2059983566","https://openalex.org/W2095318701","https://openalex.org/W2128454060","https://openalex.org/W2153505893","https://openalex.org/W2320632273","https://openalex.org/W2886818112","https://openalex.org/W2890522215","https://openalex.org/W3046658009","https://openalex.org/W3083669914","https://openalex.org/W3090981562","https://openalex.org/W3133634683","https://openalex.org/W3137135994","https://openalex.org/W3191069014","https://openalex.org/W4200453226","https://openalex.org/W4210313193","https://openalex.org/W4220985372","https://openalex.org/W4229441102","https://openalex.org/W4246978998","https://openalex.org/W4296148679","https://openalex.org/W4308909728","https://openalex.org/W4310038308","https://openalex.org/W4312418910","https://openalex.org/W4317938318","https://openalex.org/W4382363623","https://openalex.org/W4385161666","https://openalex.org/W4385462945","https://openalex.org/W4386021154","https://openalex.org/W4389367819","https://openalex.org/W4389725905","https://openalex.org/W4389996303","https://openalex.org/W4390547747","https://openalex.org/W4391135438","https://openalex.org/W4391775455","https://openalex.org/W4391966155","https://openalex.org/W4392179374","https://openalex.org/W4392200609","https://openalex.org/W4393237734","https://openalex.org/W4396540968","https://openalex.org/W4398146140","https://openalex.org/W4399409309","https://openalex.org/W4400953363","https://openalex.org/W4405445851","https://openalex.org/W4405851089","https://openalex.org/W4407987067","https://openalex.org/W4408032938","https://openalex.org/W4409000563","https://openalex.org/W4409082015","https://openalex.org/W4410571254","https://openalex.org/W4412024950","https://openalex.org/W4413323329","https://openalex.org/W4415423810","https://openalex.org/W4416999615","https://openalex.org/W7082389674","https://openalex.org/W7124293989","https://openalex.org/W7133319701"],"related_works":["https://openalex.org/W7217533727","https://openalex.org/W7165964276","https://openalex.org/W4414959983","https://openalex.org/W2802453819","https://openalex.org/W4393196160","https://openalex.org/W7203743190","https://openalex.org/W2439497365","https://openalex.org/W7213446662","https://openalex.org/W2018882211","https://openalex.org/W7120398205"],"abstract_inverted_index":{"Purpose":[0],"Rapid":[1],"urbanisation":[2],"in":[3,34,234],"cities":[4],"such":[5],"as":[6,152,169,187],"Lagos":[7,35],"requires":[8],"decentralised":[9,38,219],"solutions":[10],"that":[11,218],"address":[12],"energy":[13,180],"insecurity,":[14],"inadequate":[15],"sanitation":[16,220],"and":[17,63,97,104,115,134,166,211],"environmental":[18],"sustainability.":[19],"This":[20],"study":[21,194],"evaluates":[22],"the":[23,153,170,188],"feasibility":[24],"of":[25,113,128,146,173],"retrofitting":[26],"septic":[27,67],"infrastructure":[28,53,202],"within":[29,41],"an":[30],"ageing":[31],"residential":[32],"estate":[33,109],"to":[36,75],"support":[37],"sanitation-to-energy":[39],"systems":[40,186,221],"a":[42,196,228],"circular":[43],"sanitation\u2013energy":[44],"framework.":[45],"Design/methodology/approach":[46],"A":[47,142],"case":[48],"study-based,":[49],"engineering-calibrated":[50],"methodology":[51],"integrates":[52],"characterisation,":[54,203],"wastewater":[55,114],"estimation,":[56],"organic":[57,159],"loading":[58],"analysis,":[59],"infrastructure-constrained":[60,204,235],"methane":[61,126,164,205],"modelling":[62],"techno-economic":[64,209],"evaluation.":[65],"Real":[66],"tank":[68],"design":[69],"data":[70],"(\u02dc20":[71],"m3)":[72],"were":[73,86],"used":[74],"estimate":[76],"hydraulic":[77,143],"retention":[78,144],"time":[79,145],"under":[80],"operating":[81],"conditions.":[82],"Alternative":[83],"retrofit":[84,190,198,232],"configurations":[85],"assessed":[87],"using":[88],"multi-criteria":[89,212],"decision":[90,213],"analysis":[91,96,162],"(MCDA),":[92],"supported":[93],"by":[94],"sensitivity":[95],"multi-layer":[98],"validation":[99],"incorporating":[100],"parameter,":[101],"structural,":[102],"benchmarking":[103],"sensitivity-based":[105],"checks.":[106],"Findings":[107],"The":[108,122,193,215],"generates":[110],"43.2":[111],"m3/day":[112],"38.88":[116],"kg":[117],"COD/day":[118],"from":[119],"432":[120],"residents.":[121],"calibrated":[123],"model":[124],"estimates":[125],"production":[127],"10.89":[129],"m3/day,":[130],"yielding":[131],"92":[132],"kWh/day":[133],"avoiding":[135],"approximately":[136],"106":[137],"tonnes":[138],"CO2-equivalent":[139],"emissions":[140],"annually.":[141],"0.46":[147],"days":[148],"identifies":[149,163],"reactor":[150],"hydraulics":[151],"principal":[154,171],"technical":[155],"constraint":[156],"despite":[157],"adequate":[158],"loading.":[160],"Sensitivity":[161],"yield":[165],"capital":[167],"cost":[168],"determinants":[172],"economic":[174],"performance.":[175],"Although":[176],"centralised":[177],"digestion":[178],"maximises":[179],"output,":[181],"MCDA":[182],"results":[183],"identify":[184],"cluster-scale":[185],"preferred":[189],"option.":[191],"Originality/value":[192],"presents":[195],"unified":[197],"assessment":[199,233],"framework":[200,230],"integrating":[201],"modelling,":[206],"uncertainty":[207],"assessment,":[208],"evaluation":[210],"support.":[214],"findings":[216],"suggest":[217],"are":[222],"feedstock-adequate":[223],"but":[224],"hydraulically":[225],"constrained,":[226],"providing":[227],"transferable":[229],"for":[231],"urban":[236],"environments.":[237]},"counts_by_year":[],"updated_date":"2026-11-03T10:50:19.383937","created_date":"2026-09-20T00:00:00"}