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    王丽丽

    • 副教授     硕士生导师
    • 主要任职:无
    • 性别:女
    • 毕业院校:大阪市立大学
    • 学位:博士
    • 在职信息:在职
    • 所在单位:生物工程学院
    • 学科:生物工程与技术 微生物学
    • 办公地点:生物工程学院405
    • 电子邮箱:

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    Inoculation of cattle manure with microbial agents increases efficiency and promotes maturity in composting

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    论文类型:期刊论文

    第一作者:Li Jingbo

    合写作者:Wang Xitao,Cong Cong,Wan Leibing,Xu Yongping,Li Xiaoyu,Hou Fuqin,Wu Yanyan,Wang Lili

    发表时间:2020-03-01

    发表刊物:3 Biotech

    收录刊物:PubMed

    卷号:10

    期号:3

    页面范围:128

    ISSN号:2190-572X

    关键字:Cattle manure,Composting,Inoculation,Multiple microorganism

    摘要:In this study, fresh cattle manure was mixed with rice straw at a ratio of 10:1 in fresh weight and then composted in a self-built, aerated static composting box, whose dimension was 1 m × 0.8 m × 0.8 m with a volume of approximately 0.6 m3. To deal with the inconvenient and time-consuming problem of multiple stage inoculation, a single, one-time inoculation agent containing diverse microorganisms that are active at both the initial heating and thermophilic phases was developed. A total of 12 from 42 strains isolated from the none-inoculated Experiment 1 composting system were selected as microorganismal agents in Experiment 2 according to their species, prevalence and cultural temperature. 200 mL of each microorganism enrichment broth was mixed to the inoculation group at the beginning of composting. A total of 2400 mL of sterilize distilled water was added to the control group. The parameters of temperature, moisture, pH, C/N ratio, organic matter degradation, and germination index were investigated for both inoculation and control composting groups. Results showed that inoculation did not significantly shorten composting time. However, the pile temperature was increased with the maximum temperatures of 64.6 °C and 60.3 °C for the inoculation and control groups, respectively. The degradation of organic matter was accelerated (P < 0.05), and significantly higher GI value (P < 0.05) indicated that the maturity was promoted by the inoculation microorganism. This suggests that the final composting product would provide value as alternative source of nutrients for plants. Conclusively, we suggested a multiple microorganism inoculation method to increase the efficiency and promote maturity in cattle manure composting.© King Abdulaziz City for Science and Technology 2020.