Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity
In the present work, the impact of three new bacterial strains and their consortium on composting was evaluated using textile waste as a main substrate mixed with paper, cardboard and green waste, The effectiveness of these micro-organisms in accelerating organic matter degradation was tested. For b...
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2024-12-01
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| author | Saloua Biyada Daiva Tauraitė Jaunius Urbonavičius Mohammed Merzouki |
| author_facet | Saloua Biyada Daiva Tauraitė Jaunius Urbonavičius Mohammed Merzouki |
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| description | In the present work, the impact of three new bacterial strains and their consortium on composting was evaluated using textile waste as a main substrate mixed with paper, cardboard and green waste, The effectiveness of these micro-organisms in accelerating organic matter degradation was tested. For bioaugmentation of composting, three concentrations (4%, 6% and 8%) were applied. Among the three strains tested, one strain and the consortium demonstrated high organic matter degradation potential, achieving a total organic carbon concentration between 19–21%, total Kjeldahl nitrogen between 1.29–1.56%, a C/N ratio between 13–16%, and a temperature exceeding 55 °C. In the current study, mature compost was attained in 10 weeks, instead of the 44 weeks required for conventional composting and the 12 weeks achieved with other strains previously used. Identification of the strains by 16S rRNA sequencing revealed that they belonged to <i>Bacillus</i> sp., <i>Paenibacillus</i> sp., and <i>Enterobacter aerogenes</i>, respectively. These strains are recognized for their remarkable potential to breakdown a broad variety of organic matter, including lignocellulosic molecules. Furthermore, incorporation of bacteria into the waste mixture (either separately or as a consortium) extended the thermophilic phase by 2 weeks in this study, especially <i>Bacillus</i> sp., <i>Paenibacillus</i> sp. and consortium, leading to a significant reduction in compost production time. It is noteworthy that the efficacy of these strains was considerably greater compared with the three previous strains (i.e., <i>Streptomyces cellulosae</i>, <i>Achromobacter xylosoxidans</i> and <i>Serratia liquefaciens</i>), which were isolated from compost and used for bioaugmentation in a previous study. Our results demonstrate that bioaugmentation by endogenous microbial strains and/or their consortium significantly accelerates the composting process. |
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| publishDate | 2024-12-01 |
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| spelling | doaj-art-279dc808011a499fb0b02fdcfb41f2552025-08-20T02:00:56ZengMDPI AGApplied Sciences2076-34172024-12-0114241197610.3390/app142411976Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial ActivitySaloua Biyada0Daiva Tauraitė1Jaunius Urbonavičius2Mohammed Merzouki3Civil Engineering Research Centre, Vilnius Gediminas Technical University, Saulėtekio av. 11, LT-10223 Vilnius, LithuaniaDepartment of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Saulėtekio av. 11, LT-10223 Vilnius, LithuaniaDepartment of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Saulėtekio av. 11, LT-10223 Vilnius, LithuaniaLaboratory of Biotechnology, Environment, Agrifood, and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30050, MoroccoIn the present work, the impact of three new bacterial strains and their consortium on composting was evaluated using textile waste as a main substrate mixed with paper, cardboard and green waste, The effectiveness of these micro-organisms in accelerating organic matter degradation was tested. For bioaugmentation of composting, three concentrations (4%, 6% and 8%) were applied. Among the three strains tested, one strain and the consortium demonstrated high organic matter degradation potential, achieving a total organic carbon concentration between 19–21%, total Kjeldahl nitrogen between 1.29–1.56%, a C/N ratio between 13–16%, and a temperature exceeding 55 °C. In the current study, mature compost was attained in 10 weeks, instead of the 44 weeks required for conventional composting and the 12 weeks achieved with other strains previously used. Identification of the strains by 16S rRNA sequencing revealed that they belonged to <i>Bacillus</i> sp., <i>Paenibacillus</i> sp., and <i>Enterobacter aerogenes</i>, respectively. These strains are recognized for their remarkable potential to breakdown a broad variety of organic matter, including lignocellulosic molecules. Furthermore, incorporation of bacteria into the waste mixture (either separately or as a consortium) extended the thermophilic phase by 2 weeks in this study, especially <i>Bacillus</i> sp., <i>Paenibacillus</i> sp. and consortium, leading to a significant reduction in compost production time. It is noteworthy that the efficacy of these strains was considerably greater compared with the three previous strains (i.e., <i>Streptomyces cellulosae</i>, <i>Achromobacter xylosoxidans</i> and <i>Serratia liquefaciens</i>), which were isolated from compost and used for bioaugmentation in a previous study. Our results demonstrate that bioaugmentation by endogenous microbial strains and/or their consortium significantly accelerates the composting process.https://www.mdpi.com/2076-3417/14/24/11976bioaugmentationtextile waste<i>Bacillus</i> sp.<i>Paenibacillus</i> sp.<i>Enterobacter aerogenes</i> |
| spellingShingle | Saloua Biyada Daiva Tauraitė Jaunius Urbonavičius Mohammed Merzouki Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity Applied Sciences bioaugmentation textile waste <i>Bacillus</i> sp. <i>Paenibacillus</i> sp. <i>Enterobacter aerogenes</i> |
| title | Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity |
| title_full | Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity |
| title_fullStr | Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity |
| title_full_unstemmed | Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity |
| title_short | Accelerated Co-Composting of Textile Waste Using the New Strains and Microbial Consortium: Evaluation of Maturity, Stability and Microbial Activity |
| title_sort | accelerated co composting of textile waste using the new strains and microbial consortium evaluation of maturity stability and microbial activity |
| topic | bioaugmentation textile waste <i>Bacillus</i> sp. <i>Paenibacillus</i> sp. <i>Enterobacter aerogenes</i> |
| url | https://www.mdpi.com/2076-3417/14/24/11976 |
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