Pub Date : 2026-01-31DOI: 10.1016/j.biortech.2026.134133
Thinojah Thiruchchelvam , Juntao Wang , K.C. Bal Krishna , Arumugam Sathasivan
A mixed culture, prepared by acclimatising Chlorella vulgaris (C. vulgaris) to municipal wastewater (MWW), was used in two reactors: one was inoculated with activated sludge (AS), and the other was not (NAS). Under 12:12 h light: dark, mixing, and a hydraulic retention time of 1.17 d, both systems removed ∼92 % of 270 mg-COD/L, 57 % of 70 mg-N/L, and 27 % of PO43−-P, while achieving a sludge volume index of 42 mL/g. C. vulgaris disappeared and was replaced by other algae, including cyanobacteria, indicating that inoculation is not necessary. Higher dissolved oxygen production, IC uptake, and nitrification occurred in the NAS reactor than in the AS reactor, supported by a higher abundance of the autotrophic/aerobic community in the NAS reactor. Genomic data revealed latent mechanisms (denitrification, N-fixation, nitrate/nitrite reduction, multiple phosphorus pathways) than mass balance. Pure algae seeding is not essential, but activated sludge seeding could affect performance.
{"title":"Municipal wastewater treatment by microalgal-bacterial consortium without mechanical aeration – Effect of initial inoculum Chlorella vulgaris and activated sludge addition","authors":"Thinojah Thiruchchelvam , Juntao Wang , K.C. Bal Krishna , Arumugam Sathasivan","doi":"10.1016/j.biortech.2026.134133","DOIUrl":"10.1016/j.biortech.2026.134133","url":null,"abstract":"<div><div>A mixed culture, prepared by acclimatising <em>Chlorella vulgaris</em> (<em>C. vulgaris</em>) to municipal wastewater (MWW), was used in two reactors: one was inoculated with activated sludge (AS), and the other was not (NAS). Under 12:12 h light: dark, mixing, and a hydraulic retention time of 1.17 d, both systems removed ∼92 % of 270 mg-COD/L, 57 % of 70 mg-N/L, and 27 % of PO<sub>4</sub><sup>3−</sup>-P, while achieving a sludge volume index of 42 mL/g. <em>C. vulgaris</em> disappeared and was replaced by other algae, including <em>cyanobacteria</em>, indicating that inoculation is not necessary. Higher dissolved oxygen production, IC uptake, and nitrification occurred in the NAS reactor than in the AS reactor, supported by a higher abundance of the autotrophic/aerobic community in the NAS reactor. Genomic data revealed latent mechanisms (denitrification, <em>N</em>-fixation, nitrate/nitrite reduction, multiple phosphorus pathways) than mass balance. Pure algae seeding is not essential, but activated sludge seeding could affect performance.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"446 ","pages":"Article 134133"},"PeriodicalIF":9.0,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-31DOI: 10.1016/j.biortech.2026.134126
Da Di, Mi Xue, Caixia Ping, Xin Zhou
{"title":"Tuning the influent sulfur-to-nitrogen ratio to mitigate nitrous oxide emissions in a sulfite-driven autotrophic denitrification system","authors":"Da Di, Mi Xue, Caixia Ping, Xin Zhou","doi":"10.1016/j.biortech.2026.134126","DOIUrl":"https://doi.org/10.1016/j.biortech.2026.134126","url":null,"abstract":"","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"43 1","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.biortech.2026.134073
Yagiz Sarioglu, Dilek Sever Kaya, Halil Kurt, Nigar Kantarci-Carsibasi Simulations, Aykut Kul, Sevgi Marakli, Tunc Catal
{"title":"Coupling dalapon biodegradation with electricity generation in microbial fuel cells","authors":"Yagiz Sarioglu, Dilek Sever Kaya, Halil Kurt, Nigar Kantarci-Carsibasi Simulations, Aykut Kul, Sevgi Marakli, Tunc Catal","doi":"10.1016/j.biortech.2026.134073","DOIUrl":"https://doi.org/10.1016/j.biortech.2026.134073","url":null,"abstract":"","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"58 1","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.biortech.2026.134134
Mohammad Adib Ghazali Abdul Rahman, Bronwyn Laycock, Steven Pratt, Cristian A. Sepúlveda-Muñoz, Damien J. Batstone
{"title":"Photoautotrophic polyhydroxyalkanoate (PHA) accumulation in mixed purple bacteria using formate, carbon dioxide and carbon monoxide","authors":"Mohammad Adib Ghazali Abdul Rahman, Bronwyn Laycock, Steven Pratt, Cristian A. Sepúlveda-Muñoz, Damien J. Batstone","doi":"10.1016/j.biortech.2026.134134","DOIUrl":"https://doi.org/10.1016/j.biortech.2026.134134","url":null,"abstract":"","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"38 1","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146089401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.biortech.2026.134131
Jing Cao, Linxiong Luo, Haiyan Yang, Zhengjun Shi, Chun Shi, Taohong Li, Jing Yang
{"title":"Multi-component deep eutectic solvents pretreatment using different pKa dependent acids as hydrogen bond donors to enhance enzymatic saccharification of bamboo","authors":"Jing Cao, Linxiong Luo, Haiyan Yang, Zhengjun Shi, Chun Shi, Taohong Li, Jing Yang","doi":"10.1016/j.biortech.2026.134131","DOIUrl":"https://doi.org/10.1016/j.biortech.2026.134131","url":null,"abstract":"","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"54 1","pages":""},"PeriodicalIF":11.4,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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