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Improving sewage sludge compost process and quality by carbon sources addition

In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting experiments were performed for 32 days in 5 L reactors. The results showed that carbon sources could change the nitrogen conversion and improve...

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Autores principales: Meng, Liqiang, Li, Weiguang, Zhang, Shumei, Zhang, Xiancheng, Zhao, Yi, Chen, Li
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809052/
https://www.ncbi.nlm.nih.gov/pubmed/33446686
http://dx.doi.org/10.1038/s41598-020-79443-3
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author Meng, Liqiang
Li, Weiguang
Zhang, Shumei
Zhang, Xiancheng
Zhao, Yi
Chen, Li
author_facet Meng, Liqiang
Li, Weiguang
Zhang, Shumei
Zhang, Xiancheng
Zhao, Yi
Chen, Li
author_sort Meng, Liqiang
collection PubMed
description In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting experiments were performed for 32 days in 5 L reactors. The results showed that carbon sources could change the nitrogen conversion and improve the compost quality. Especially, the readily degradable carbon source could promote organic matter degradation, improve nitrogen conversion process and accelerate compost maturation. The addition of glucose and sucrose could increase dissolved organic carbon, CO(2) emission, dehydrogenase activity, nitrification and germination index during the SS composting. That's because glucose and sucrose could be quickly used by microbes as energy and carbon source substance to increase activity of microbes and ammonia assimilation. What's more, the NH(3) emission was reduced by 26.9% and 32.1% in glucose and sucrose treatments, respectively. Therefore, the addition of readily degradable carbon source could reduce NH(3) emission and improve compost maturity in the SS composting.
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spelling pubmed-78090522021-01-15 Improving sewage sludge compost process and quality by carbon sources addition Meng, Liqiang Li, Weiguang Zhang, Shumei Zhang, Xiancheng Zhao, Yi Chen, Li Sci Rep Article In present study, the effects of carbon sources on compost process and quality were evaluated in the lab-scale sewage sludge (SS) composting. The composting experiments were performed for 32 days in 5 L reactors. The results showed that carbon sources could change the nitrogen conversion and improve the compost quality. Especially, the readily degradable carbon source could promote organic matter degradation, improve nitrogen conversion process and accelerate compost maturation. The addition of glucose and sucrose could increase dissolved organic carbon, CO(2) emission, dehydrogenase activity, nitrification and germination index during the SS composting. That's because glucose and sucrose could be quickly used by microbes as energy and carbon source substance to increase activity of microbes and ammonia assimilation. What's more, the NH(3) emission was reduced by 26.9% and 32.1% in glucose and sucrose treatments, respectively. Therefore, the addition of readily degradable carbon source could reduce NH(3) emission and improve compost maturity in the SS composting. Nature Publishing Group UK 2021-01-14 /pmc/articles/PMC7809052/ /pubmed/33446686 http://dx.doi.org/10.1038/s41598-020-79443-3 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Meng, Liqiang
Li, Weiguang
Zhang, Shumei
Zhang, Xiancheng
Zhao, Yi
Chen, Li
Improving sewage sludge compost process and quality by carbon sources addition
title Improving sewage sludge compost process and quality by carbon sources addition
title_full Improving sewage sludge compost process and quality by carbon sources addition
title_fullStr Improving sewage sludge compost process and quality by carbon sources addition
title_full_unstemmed Improving sewage sludge compost process and quality by carbon sources addition
title_short Improving sewage sludge compost process and quality by carbon sources addition
title_sort improving sewage sludge compost process and quality by carbon sources addition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809052/
https://www.ncbi.nlm.nih.gov/pubmed/33446686
http://dx.doi.org/10.1038/s41598-020-79443-3
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