橄榄渣,利用厌氧消化的绿色能源

Jean H. El Achkar, Clara Rohayem, D. Salameh, N. Louka, R. Maroun, Zeina Hobaika
{"title":"橄榄渣,利用厌氧消化的绿色能源","authors":"Jean H. El Achkar, Clara Rohayem, D. Salameh, N. Louka, R. Maroun, Zeina Hobaika","doi":"10.1109/REDEC.2018.8598079","DOIUrl":null,"url":null,"abstract":"Organic waste generation is constantly increasing due to industrialization and various treatment processes. Nowadays, anaerobic digestion, as a green technology, is widely used to convert organic waste, into methane, and subsequently, into bioenergy. In this study, our main objective was to evaluate the feasibility of applying anaerobic digestion to treat Lebanese olive by-products, in particular olive pomace. Biochemical fractionation of our biomass showed high contents of cellulose (55.4% of total solids) and lignin (21.3% of total solids) which could limit the anaerobic digestion and result in low methane yield. Biochemical methane potential was assessed using anaerobic digesters in batch mode. These digesters containing the substrate and inoculum in a ratio substrate to inoculum of 1:3 (total solids basis) were incubated at 37°C. Results from anaerobic digestion showed that olive pomace is a great source of green energy. Alkaline pretreatment was effective in altering the lignocellulosic fractions of olive pomace. But when pretreated samples were subjected to anaerobic digestion, an inhibition occurred because of the formation of toxic compounds, mainly when higher NaOH dosages were used. Alkaline pretreatment also influenced the methane production rate constants and slowed down the anaerobic digestion process.","PeriodicalId":426643,"journal":{"name":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Olive pomace, a source of green energy using anaerobic digestion\",\"authors\":\"Jean H. El Achkar, Clara Rohayem, D. Salameh, N. Louka, R. Maroun, Zeina Hobaika\",\"doi\":\"10.1109/REDEC.2018.8598079\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Organic waste generation is constantly increasing due to industrialization and various treatment processes. Nowadays, anaerobic digestion, as a green technology, is widely used to convert organic waste, into methane, and subsequently, into bioenergy. In this study, our main objective was to evaluate the feasibility of applying anaerobic digestion to treat Lebanese olive by-products, in particular olive pomace. Biochemical fractionation of our biomass showed high contents of cellulose (55.4% of total solids) and lignin (21.3% of total solids) which could limit the anaerobic digestion and result in low methane yield. Biochemical methane potential was assessed using anaerobic digesters in batch mode. These digesters containing the substrate and inoculum in a ratio substrate to inoculum of 1:3 (total solids basis) were incubated at 37°C. Results from anaerobic digestion showed that olive pomace is a great source of green energy. Alkaline pretreatment was effective in altering the lignocellulosic fractions of olive pomace. But when pretreated samples were subjected to anaerobic digestion, an inhibition occurred because of the formation of toxic compounds, mainly when higher NaOH dosages were used. Alkaline pretreatment also influenced the methane production rate constants and slowed down the anaerobic digestion process.\",\"PeriodicalId\":426643,\"journal\":{\"name\":\"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)\",\"volume\":\"107 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/REDEC.2018.8598079\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 4th International Conference on Renewable Energies for Developing Countries (REDEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/REDEC.2018.8598079","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4

摘要

由于工业化和各种处理过程,有机废物的产生不断增加。目前,厌氧消化作为一种绿色技术,被广泛用于将有机废物转化为甲烷,进而转化为生物能源。在这项研究中,我们的主要目的是评估应用厌氧消化处理黎巴嫩橄榄副产品的可行性,特别是橄榄渣。生物质的生化分馏表明,纤维素(占总固体的55.4%)和木质素(占总固体的21.3%)含量高,这限制了厌氧消化,导致甲烷产量低。采用间歇式厌氧消化器对生化甲烷电位进行了评估。这些消化器含有底物和接种物,底物与接种物的比例为1:3(总固体基础),在37°C下孵育。厌氧消化结果表明,橄榄渣是绿色能源的重要来源。碱性预处理对橄榄渣的木质纤维素组分有较好的改变作用。但是,当预处理的样品进行厌氧消化时,由于有毒化合物的形成而发生抑制,主要是在使用较高的NaOH剂量时。碱预处理还影响了甲烷产率常数,减缓了厌氧消化过程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Olive pomace, a source of green energy using anaerobic digestion
Organic waste generation is constantly increasing due to industrialization and various treatment processes. Nowadays, anaerobic digestion, as a green technology, is widely used to convert organic waste, into methane, and subsequently, into bioenergy. In this study, our main objective was to evaluate the feasibility of applying anaerobic digestion to treat Lebanese olive by-products, in particular olive pomace. Biochemical fractionation of our biomass showed high contents of cellulose (55.4% of total solids) and lignin (21.3% of total solids) which could limit the anaerobic digestion and result in low methane yield. Biochemical methane potential was assessed using anaerobic digesters in batch mode. These digesters containing the substrate and inoculum in a ratio substrate to inoculum of 1:3 (total solids basis) were incubated at 37°C. Results from anaerobic digestion showed that olive pomace is a great source of green energy. Alkaline pretreatment was effective in altering the lignocellulosic fractions of olive pomace. But when pretreated samples were subjected to anaerobic digestion, an inhibition occurred because of the formation of toxic compounds, mainly when higher NaOH dosages were used. Alkaline pretreatment also influenced the methane production rate constants and slowed down the anaerobic digestion process.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信