Innovative and cost-effective approaches to enhance nutrient removal and energy efficiency in conventional wastewater treatment plants

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dc.authorid0000-0003-2734-8544
dc.contributor.authorAlver, Alper
dc.contributor.authorKüçükbayrak, Mustafa
dc.date.accessioned2025-04-22T10:44:51Z
dc.date.available2025-04-22T10:44:51Z
dc.date.issued2025
dc.departmentMühendislik Fakültesi
dc.description.abstractThe 42 Evler Wastewater Treatment Plant (WWTP), originally operated as a conventional activated sludge (CAS) system, was transformed into an advanced biological system using the Modified Ludzack-Ettinger (MLE) process scheme, significantly improving nutrient removal and energy efficiency. Integrating anoxic-aerobic zones and optimizing microbial dynamics enhanced treatment performance, with total nitrogen (TN) and total phosphorus (TP) removal efficiencies increasing from 28.1 % to over 80 % and from 56.4 % to 89.6 %, respectively. These improvements were achieved alongside a 32.9 % reduction in energy consumption. Detailed microbial analyses identified key new species, such as Nitrosomonas and Thiobacillus, whose roles in nitrification and denitrification pathways were pivotal for improving treatment performance. Integrating anoxic-aerobic zones, advanced aeration systems, and optimized sludge management further contributed to the system's sustainability. Evaluating pollutant removal efficiencies before and after the upgrade, supported by statistical analyses, confirmed significant improvements in BOD5, COD, TN, TP, and TSS removal. The microbial community was comprehensively assessed, revealing the specific roles of microorganisms in nutrient removal and process optimization. These advancements align with stringent discharge standards and global environmental goals, demonstrating how microbial insights and process innovations can modernize wastewater treatment. The upgraded system provides a scalable and efficient framework for addressing environmental and operational challenges in wastewater management.
dc.identifier.doi10.1016/j.jenvman.2025.125350
dc.identifier.issn03014797
dc.identifier.pmid40245728
dc.identifier.scopus2-s2.0-105002567600
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://dx.doi.org/10.1016/j.jenvman.2025.125350
dc.identifier.urihttps://hdl.handle.net/20.500.12451/13105
dc.identifier.volume382
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAlver, Alper
dc.language.isoen
dc.publisherAcademic Press
dc.relation.ispartofJournal of Environmental Management
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAdvanced Biological Treatment
dc.subjectEnergy Efficiency
dc.subjectMicrobial Analysis
dc.subjectNutrient Removal
dc.subjectWastewater Treatment
dc.titleInnovative and cost-effective approaches to enhance nutrient removal and energy efficiency in conventional wastewater treatment plants
dc.typeArticle

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