Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure

Abstract Microwave assisted with alkaline (MW-A) condition was applied in the pretreatment of swine manure, and the effect of the pretreatment on anaerobic treatment and biogas production was evaluated in this study. The two main microwaving (MW) parameters, microwaving power and reaction time, were...

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Autores principales: Tao Yu, Yihuan Deng, Hongyu Liu, Chunping Yang, Bingwen Wu, Guangming Zeng, Li Lu, Fumitake Nishimura
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/df508a95292d43979acc6f3d4c6e2655
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spelling oai:doaj.org-article:df508a95292d43979acc6f3d4c6e26552021-12-02T11:52:16ZEffect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure10.1038/s41598-017-01706-32045-2322https://doaj.org/article/df508a95292d43979acc6f3d4c6e26552017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01706-3https://doaj.org/toc/2045-2322Abstract Microwave assisted with alkaline (MW-A) condition was applied in the pretreatment of swine manure, and the effect of the pretreatment on anaerobic treatment and biogas production was evaluated in this study. The two main microwaving (MW) parameters, microwaving power and reaction time, were optimized for the pretreatment. Response surface methodology (RSM) was used to investigate the effect of alkaline microwaving process for manure pretreatment at various values of pH and energy input. Results showed that the manure disintegration degree was maximized of 63.91% at energy input of 54 J/g and pH of 12.0, and variance analysis indicated that pH value played a more important role in the pretreatment than in energy input. Anaerobic digestion results demonstrated that MW-A pretreatment not only significantly increased cumulative biogas production, but also shortened the duration for a stable biogas production rate. Therefore, the alkaline microwaving pretreatment could become an alternative process for effective treatment of swine manure.Tao YuYihuan DengHongyu LiuChunping YangBingwen WuGuangming ZengLi LuFumitake NishimuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Tao Yu
Yihuan Deng
Hongyu Liu
Chunping Yang
Bingwen Wu
Guangming Zeng
Li Lu
Fumitake Nishimura
Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
description Abstract Microwave assisted with alkaline (MW-A) condition was applied in the pretreatment of swine manure, and the effect of the pretreatment on anaerobic treatment and biogas production was evaluated in this study. The two main microwaving (MW) parameters, microwaving power and reaction time, were optimized for the pretreatment. Response surface methodology (RSM) was used to investigate the effect of alkaline microwaving process for manure pretreatment at various values of pH and energy input. Results showed that the manure disintegration degree was maximized of 63.91% at energy input of 54 J/g and pH of 12.0, and variance analysis indicated that pH value played a more important role in the pretreatment than in energy input. Anaerobic digestion results demonstrated that MW-A pretreatment not only significantly increased cumulative biogas production, but also shortened the duration for a stable biogas production rate. Therefore, the alkaline microwaving pretreatment could become an alternative process for effective treatment of swine manure.
format article
author Tao Yu
Yihuan Deng
Hongyu Liu
Chunping Yang
Bingwen Wu
Guangming Zeng
Li Lu
Fumitake Nishimura
author_facet Tao Yu
Yihuan Deng
Hongyu Liu
Chunping Yang
Bingwen Wu
Guangming Zeng
Li Lu
Fumitake Nishimura
author_sort Tao Yu
title Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
title_short Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
title_full Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
title_fullStr Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
title_full_unstemmed Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
title_sort effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/df508a95292d43979acc6f3d4c6e2655
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AT hongyuliu effectofalkalinemicrowavingpretreatmentonanaerobicdigestionandbiogasproductionofswinemanure
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