不同来源底物对厌氧发酵产氢余物产甲烷影响  

INFLUENCE OF DIFFERENT SOURCE SUBSTRATE SYSTEMS ON METHANOGENESIS OF RESIDUE FROM ANAEROBIC FERMENTATIVE HYDROGEN PRODUCTION USING COMBINED SLUDGE AND FOOD WASTE

作　　者：周雨绮 曹麒 许俊超 刘常青 卓桂华[3] 陈建勇 郑育毅 ZHOU Yu-qi;CAO Q;XU Jun-chao;LIU Chang-qing;ZHUO Gui-hua;CHEN Jian-yong;ZHENG Yu-yi(College of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China;Fujian College and University Engineering Research Center for Municipal Solid Waste Resourceization and Management,Fuzhou 350007,China;Fujian Academy of Environmental Sciences,Fuzhou 350013,China;College of Geographical Science,Fujian Normal University,Fuzhou 350007,China)

机构地区：[1]福建师范大学环境科学与工程学院,福州350007 [2]城市废物资源化技术与管理福建省高校工程研究中心,福州350007 [3]福建省环境科学研究院,福州350013 [4]福建师范大学地理科学学院,福州350007

出　　处：《环境工程》2021年第9期123-130,共8页Environmental Engineering

基　　金：福建省科技厅公益类项目(2019R1015-1);福建省科技厅计划项目(2020N5015)。

摘　　要：通过批式试验将不同来源的污泥与餐厨垃圾进行联合厌氧发酵,研究不同产氢程度的污泥-餐厨垃圾在不同污泥接种量下的产甲烷能力,以寻求产氢余物产沼的最佳条件及有机质转化规律。结果表明:污泥-餐厨垃圾产氢余物的产氢程度与体系产甲烷能力呈正相关,即产氢多余物>产氢少余物>不产氢底物;接种量增大后,体系产甲烷效能降低且各体系间的差异逐渐缩小。30%接种量下的产氢多余物体系产甲烷能力最佳,平均产甲烷速率为0.54 mL/(g·d),在第27天甲烷占比达到峰值87.04%,有最大累积产甲烷量1659 mL;主要原因是该体系挥发酸降解量大(17565 mg COD/L),占TCOD降解量(35384 mg/L)的50%。This study explored the methane production capacity of different source substrate systems from different residues of anaerobic fermentative hydrogen production using combined sludge and food waste through batch experiments,aimed to seek the optimum methane production conditions and the corresponding changes of the organic contents in the anaerobic system.The results showed that,the hydrogen production of substrate systems was positively correlated with the methane production performance,namely in the sequence of hydrogen production abound system>hydrogen production deficient system>non-hydrogen production system;when the inoculation amount increased,the methane production efficiency of the system was decreased,and the difference between the systems gradually got narrowed.Hydrogen production surplus system of 30%inoculation volume had the optimal methane production performance,and the average methane production rate was 0.54 mL/(g·d),reached 87.04%of methane concentration peak on the 27 th day,and the highest accumulative methane yield was 1659 mL.It’s mainly due to the large amount of TVFA degradation in this system(17565 mg COD/L),accounting for 50%of the degradation of TCOD(35384 mg/L).

关 键 词：产氢余物 厌氧发酵 产甲烷 接种量 中温 

分 类 号：TQ920.1[轻工技术与工程—发酵工程] X703[环境科学与工程—环境工程] X799.3