超微粉碎预处理泥炭产生物氢气的研究  

Hydrogen Production by Superfine Grinded Peat

作　　者：孙慎光 李珺 马力通[1,3] 赵寒冰 SUN Shenguang;LI Jun;MA Litong;ZHAO Hanbing(School of Chemistry and Chemical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;School of Life Science and Technology,Inner Mongolia University of Science and Technology,Baotou 014010,China;Inner Mongolia Engineering Research Center of Comprehensive Utilization of Bio-Coal Chemical Industry,Baotou 014010,China)

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头014010 [2]内蒙古科技大学生命科学与技术学院,内蒙古包头014010 [3]生物煤化工综合利用内蒙古自治区工程研究中心,内蒙古包头014010

出　　处：《化学与生物工程》2022年第7期13-16,共4页Chemistry & Bioengineering

基　　金：国家自然科学基金项目(21766025);内蒙古自治区人才开发基金项目(2021年度)。

摘　　要：采用超微粉碎对泥炭进行预处理,然后进行厌氧发酵,考察超微粉碎预处理对泥炭产氢气过程中的日产氢气量、pH值、还原糖含量、挥发性脂肪酸(VFA)含量以及总产氢气量的影响,采用透射电镜(TEM)、扫描电镜(SEM)观察产氢气前后泥炭颗粒的形貌。结果表明:泥炭经超微粉碎预处理后,粒径更小,比表面积增大,孔隙率提高,孔隙尺寸增大。超微粉碎后泥炭发酵的总产氢气量为843 mL,较200目泥炭发酵的总产氢气量(500 mL)提高了68.6%。超微粉碎能够显著提高泥炭发酵产氢气量。We pretreated peat by superfine grinding,and prepared hydrogen by anaerobic fermentation of peat.Moreover,we investigated the effects of superfine grinding pretreatment on daily hydrogen production,pH value,reducing sugar content,volatile fatty acid(VFA)content,and total hydrogen production.Furthermore,we characterized the morphology of peat before and after hydrogen production by transmission electron microscopy(TEM)and scanning electron microscopy(SEM).The results show that the particle size of peat is smaller,while the specific surface area,porosity,and pore size increase after superfine grinding.The total hydrogen production of superfine grinded peat is 843 mL,which is 68.6%higher than that of the 200 mesh peat(500 mL).The superfine grinding pretreatment can significantly improve the hydrogen production by peat fermentation.

关 键 词：超微粉碎 泥炭 预处理 产氢气 

分 类 号：TQ35[化学工程] S216.2[农业科学—农业机械化工程]