Enhancement of methane production from Cotton Stalk using different pretreatment techniques

Abstract China produces large amount of cotton stalk (CS) residues as agricultural biomass, which are incinerated on-site, causing air pollution. The high organic content of CS could be utilized for biogas production, but the direct digestion without pretreatment always leads to a low methane yield...

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Autores principales:	Han Zhang, Zhifang Ning, Habiba Khalid, Ruihong Zhang, Guangqing Liu, Chang Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d1a23842a8234da2bbd8162e2aa04c87
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spelling	oai:doaj.org-article:d1a23842a8234da2bbd8162e2aa04c872021-12-02T12:32:48ZEnhancement of methane production from Cotton Stalk using different pretreatment techniques10.1038/s41598-018-21413-x2045-2322https://doaj.org/article/d1a23842a8234da2bbd8162e2aa04c872018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-21413-xhttps://doaj.org/toc/2045-2322Abstract China produces large amount of cotton stalk (CS) residues as agricultural biomass, which are incinerated on-site, causing air pollution. The high organic content of CS could be utilized for biogas production, but the direct digestion without pretreatment always leads to a low methane yield and biodegradability, due to the complicated structure of lignocellulose. In order to search best fitting pretreatment methods in effective anaerobic digestion (AD) of CS, effects of various pretreatments including KOH, NaOH, Ca(OH)2, alkali hydrogen peroxide (AHP), H2SO4, H3PO4 and steam explosion (SE) were studied. It was seen that all treatments resulted in varying methane yields. Among all the pretreatments, acid pretreatment is not suitable for AD of CS. The results showed that the highest cumulative methane yield (CMY) of 192.4 mL·gVS−1 was obtained after 3% AHP pretreatment of CS, and the methane yield improved by 254.3% than the untreated CS. Therefore, AHP treatment was proven to be an efficient pretreatment technique. XRD and FTIR analyses had shown that pretreated CS had favorable structural changes. This research is beneficial in developing environment friendly and cost-effective pretreatment technologies to utilize CS for methane production in future application.Han ZhangZhifang NingHabiba KhalidRuihong ZhangGuangqing LiuChang ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Han Zhang Zhifang Ning Habiba Khalid Ruihong Zhang Guangqing Liu Chang Chen Enhancement of methane production from Cotton Stalk using different pretreatment techniques
description	Abstract China produces large amount of cotton stalk (CS) residues as agricultural biomass, which are incinerated on-site, causing air pollution. The high organic content of CS could be utilized for biogas production, but the direct digestion without pretreatment always leads to a low methane yield and biodegradability, due to the complicated structure of lignocellulose. In order to search best fitting pretreatment methods in effective anaerobic digestion (AD) of CS, effects of various pretreatments including KOH, NaOH, Ca(OH)2, alkali hydrogen peroxide (AHP), H2SO4, H3PO4 and steam explosion (SE) were studied. It was seen that all treatments resulted in varying methane yields. Among all the pretreatments, acid pretreatment is not suitable for AD of CS. The results showed that the highest cumulative methane yield (CMY) of 192.4 mL·gVS−1 was obtained after 3% AHP pretreatment of CS, and the methane yield improved by 254.3% than the untreated CS. Therefore, AHP treatment was proven to be an efficient pretreatment technique. XRD and FTIR analyses had shown that pretreated CS had favorable structural changes. This research is beneficial in developing environment friendly and cost-effective pretreatment technologies to utilize CS for methane production in future application.
format	article
author	Han Zhang Zhifang Ning Habiba Khalid Ruihong Zhang Guangqing Liu Chang Chen
author_facet	Han Zhang Zhifang Ning Habiba Khalid Ruihong Zhang Guangqing Liu Chang Chen
author_sort	Han Zhang
title	Enhancement of methane production from Cotton Stalk using different pretreatment techniques
title_short	Enhancement of methane production from Cotton Stalk using different pretreatment techniques
title_full	Enhancement of methane production from Cotton Stalk using different pretreatment techniques
title_fullStr	Enhancement of methane production from Cotton Stalk using different pretreatment techniques
title_full_unstemmed	Enhancement of methane production from Cotton Stalk using different pretreatment techniques
title_sort	enhancement of methane production from cotton stalk using different pretreatment techniques
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/d1a23842a8234da2bbd8162e2aa04c87
work_keys_str_mv	AT hanzhang enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques AT zhifangning enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques AT habibakhalid enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques AT ruihongzhang enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques AT guangqingliu enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques AT changchen enhancementofmethaneproductionfromcottonstalkusingdifferentpretreatmenttechniques
_version_	1718394007933943808

Enhancement of methane production from Cotton Stalk using different pretreatment techniques

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