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Effects of thermophiles inoculation on the efficiency and maturity of rice straw composting

文献类型: 外文期刊

作者: Wang, Mengmeng 1 ; Wang, Xuanqing 3 ; Wu, Yuncheng 1 ; Wang, Xiaosong 5 ; Zhao, Jiayin 1 ; Liu, Yu 1 ; Chen, Zhe 1 ; Jiang, Zhongkun 1 ; Tian, Wei 1 ; Zhang, Jibing 1 ;

作者机构: 1.Minist Ecol & Environm, Nanjing Inst Environm Sci, Nanjing 210042, Peoples R China

2.Nanjing Agr Univ, Jiangsu Collaborat Innovat Ctr Solid Organ Wastes, Educ Minist Engn Ctr Resource saving Fertilizers, Jiangsu Prov Key Lab Solid Organ Waste Utilizat, Nanjing 210095, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

4.Minist Agr & Rural Affairs, Key Lab Saline Alkali Soil Improvement & Utilizat, Nanjing 210014, Peoples R China

5.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

6.Minist Ecol & Environm, Nanjing Inst Environm Sci, 8 Jiangwangmiao St, Nanjing 210042, Peoples R China

关键词: Composting; Rice straw; Lignocellulose degradation; Thermophile; Microbial inoculation

期刊名称:BIORESOURCE TECHNOLOGY ( 影响因子:11.889; 五年影响因子:11.139 )

ISSN: 0960-8524

年卷期: 2022 年 354 卷

页码:

收录情况: SCI

摘要: The present study investigated the effects of separately or simultaneously inoculating thermophilic fungus Aspergillus fumigatus Z5 and bacterium Geobacillus stearothermophilus B5 on lignocellulose degradation, enzyme activities and humification during rice straw composting. The results indicated that inoculation of Z5 accelerated the rise of temperature in the mesophilic phase, and the degradation degree of cellulose and hemicellulose was increased by 25.3% and 20.7%, respectively, due to the higher activities of lignocellulolytic enzymes. Inoculation of B5 increased 5-7 degrees C of the compost temperature in the thermophilic phase, and also prolonged the duration from 33 to 41 days. Inoculated simultaneously, the secreted hydrolases of Z5 generated more nutrition and promoted the growth of B5. B5 maintained and increased the compost temperature, thus presenting a better hydrolysis environment for extracellular hydrolases. Thermophilic inoculation altered the main physicochemical factors and improved efficiency and maturity in rice straw composting.

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