Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis

ABSTRACT The presented research is focused on evaluating the influence of adding clinoptilolite (Z) on the multi‐component co‐digestion (AcoD) of sewage sludge (SS), citrus waste represented by orange peel (OP) and brewery spent grain (BSG). The experiments were conducted under mesophilic conditions...

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Main Authors: Aleksandra Szaja, Agnieszka Montusiewicz, Agnieszka Cydzik‐Kwiatkowska, Sylwia Pasieczna‐Patkowska, Magdalena Lebiocka
Format: Article
Language:English
Published: Wiley 2025-05-01
Series:GCB Bioenergy
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Online Access:https://doi.org/10.1111/gcbb.70029
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author Aleksandra Szaja
Agnieszka Montusiewicz
Agnieszka Cydzik‐Kwiatkowska
Sylwia Pasieczna‐Patkowska
Magdalena Lebiocka
author_facet Aleksandra Szaja
Agnieszka Montusiewicz
Agnieszka Cydzik‐Kwiatkowska
Sylwia Pasieczna‐Patkowska
Magdalena Lebiocka
author_sort Aleksandra Szaja
collection DOAJ
description ABSTRACT The presented research is focused on evaluating the influence of adding clinoptilolite (Z) on the multi‐component co‐digestion (AcoD) of sewage sludge (SS), citrus waste represented by orange peel (OP) and brewery spent grain (BSG). The experiments were conducted under mesophilic conditions at 37°C in batch mode; 7 series with differing feedstock configurations were performed. The positive effect of Z was shown in each configuration, most strongly with SS:OP:BSG:Z. The production of methane was enhanced by 81%, in comparison to the co‐digestion of SS:OP:BSG without Z, reaching 362.4 mL CH4/g volatile solids (VS). The kinetics was also improved as the methane production rate increased to a similar extent, amounting to 17.3 mL CH4/g VS d. Moreover, it was observed that the lag phase was shortened and the contents of both limonene and phenols were reduced. The composition of the microbial communities was significantly altered by the addition of Z in AcoD of SS:OP and SS:OP:BSG. Therein, a unique microbiome structure with the highest percentage of unidentified sequences was found. The beneficial effect of Z was multifaceted and related to the reduction of the stress caused by the presence of limonene and phenols as well as the syntrophic relation between the microorganisms.
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spelling doaj-art-7a6aac21cd62471c96f4ab04faef95592025-08-20T03:53:32ZengWileyGCB Bioenergy1757-16931757-17072025-05-01175n/an/a10.1111/gcbb.70029Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome AnalysisAleksandra Szaja0Agnieszka Montusiewicz1Agnieszka Cydzik‐Kwiatkowska2Sylwia Pasieczna‐Patkowska3Magdalena Lebiocka4Faculty of Environmental Engineering Lublin University of Technology Lublin PolandFaculty of Environmental Engineering Lublin University of Technology Lublin PolandDepartment of Environmental Biotechnology, Faculty of Geoengineering University of Warmia and Mazury Olsztyn PolandDepartment of Chemical Technology, Faculty of Chemistry Maria Curie Skłodowska University Lublin PolandFaculty of Environmental Engineering Lublin University of Technology Lublin PolandABSTRACT The presented research is focused on evaluating the influence of adding clinoptilolite (Z) on the multi‐component co‐digestion (AcoD) of sewage sludge (SS), citrus waste represented by orange peel (OP) and brewery spent grain (BSG). The experiments were conducted under mesophilic conditions at 37°C in batch mode; 7 series with differing feedstock configurations were performed. The positive effect of Z was shown in each configuration, most strongly with SS:OP:BSG:Z. The production of methane was enhanced by 81%, in comparison to the co‐digestion of SS:OP:BSG without Z, reaching 362.4 mL CH4/g volatile solids (VS). The kinetics was also improved as the methane production rate increased to a similar extent, amounting to 17.3 mL CH4/g VS d. Moreover, it was observed that the lag phase was shortened and the contents of both limonene and phenols were reduced. The composition of the microbial communities was significantly altered by the addition of Z in AcoD of SS:OP and SS:OP:BSG. Therein, a unique microbiome structure with the highest percentage of unidentified sequences was found. The beneficial effect of Z was multifaceted and related to the reduction of the stress caused by the presence of limonene and phenols as well as the syntrophic relation between the microorganisms.https://doi.org/10.1111/gcbb.70029brewery spent graincitrus wasteco‐digestionDNA analysissewage sludgezeolite
spellingShingle Aleksandra Szaja
Agnieszka Montusiewicz
Agnieszka Cydzik‐Kwiatkowska
Sylwia Pasieczna‐Patkowska
Magdalena Lebiocka
Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
GCB Bioenergy
brewery spent grain
citrus waste
co‐digestion
DNA analysis
sewage sludge
zeolite
title Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
title_full Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
title_fullStr Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
title_full_unstemmed Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
title_short Enhancing Methane Production Through Co‐Digestion of Sewage Sludge, Citrus Waste and Brewery Spend Grain With Natural Zeolite: Mechanisms and Microbiome Analysis
title_sort enhancing methane production through co digestion of sewage sludge citrus waste and brewery spend grain with natural zeolite mechanisms and microbiome analysis
topic brewery spent grain
citrus waste
co‐digestion
DNA analysis
sewage sludge
zeolite
url https://doi.org/10.1111/gcbb.70029
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