碱预处理促进椰衣纤维厌氧消化产气研究  

Effect of alkaline pretreatment on biogas production from coconut fiber by anaerobic digestion

作　　者：魏宝程 王立功 王珏 刘广青[1] 陈畅[1] WEI BaoCheng;WANG LiGong;WANG Jue;LIU GuangQing;CHEN Chang(College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029;Third Highway Engineering Co.,Ltd.,China Communications Construction Co.,Ltd.,Beijing 100010,China)

机构地区：[1]北京化工大学化学工程学院,北京100029 [2]中国交通建设集团股份有限公司第三公路工程局有限公司,北京100010

出　　处：《北京化工大学学报（自然科学版）》2021年第5期17-23,共7页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：中国交通建设集团股份有限公司第三工程局有限公司科研项目。

摘　　要：针对当前存在的椰衣纤维量大且难处理的问题,研究了NaOH、KOH、Ca(OH)_(2)和碱性H_(2)O_(2)(AHP)预处理对其厌氧消化性能的影响。结果表明,碱预处理可以缩短椰衣纤维厌氧消化反应的迟滞期,提高累积沼气产量。采用7%NaOH和7%AHP预处理可显著去除木质素,累积产气量(基于挥发性固体含量,VS)可达218.3 mL/g和217.8 mL/g,较未预处理的椰衣纤维(累积产气量为101.1 mL/g)提升了115.9%和115.4%。In order to fully use coconut fiber,this study explored the effect of alkaline pretreatment using NaOH,KOH,Ca(OH)_(2 )and alkaline H_(2)O_(2)(AHP)on improving methane production of this feedstock by anaerobic digestion.The results showed that alkaline pretreatment could shorten the lag phase time and increase the cumulative biogas yield.The lignin contents of coconut fibers were significantly reduced by pretreatment with 7%NaOH and 7%AHP,with biogas yields(based on volatile solid content)of 218.3 mL/g and 217.8 mL/g,representing increases of 115.9%and 115.4%,respectively,compared with the untreated feedstock(101.1 mL/g).This study provides a theoretical basis for the recycling of coconut fiber to produce renewable energy.

关 键 词：椰衣纤维 碱预处理 产气性能 

分 类 号：X713[环境科学与工程—环境工程]