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首页> 外文期刊>Journal of Cleaner Production >Evaluation of microbial inoculants pretreatment in straw and manure co-composting process enhancement
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Evaluation of microbial inoculants pretreatment in straw and manure co-composting process enhancement

机译：秸秆和粪肥协同堆肥过程中微生物接种剂预处理的评价

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摘要

Commercial microbial inoculants (MI) are usually inoculated during the co-composting of straw and manure to improve the compost process. In the present study, MI was prior used to pretreat straw before co-composting (MI pretreated) and compared with a treatment with inoculated MI during the cocomposting (MI inoculated) as well as a treatment without MI utilization (CK). Compared with the CK, MI utilization (MI inoculated and MI pretreated) significantly improved the compost maturity index of C/N (Sig. values 0.016), Cwater-soluble (organic)/N-organic (Sig. values 0.000), EC (Sig. values 0.043), and GI (Sig. values 0.009), as well as increased the final products' total nutrient content by 4-13%. The MI pretreatment disrupted straw structure and enhanced lignocellulose degradation before co-composting as shown by a decreased straw cellulose content by 8-18% and hemicellulose content by 20-23%. However, no noticeable difference was found in the maturity index between MI pretreated and MI inoculated treatments, although the microbial community of compost differed between them during the thermophilic stage. In conclusion, MI utilization is proposed during the composting process for enhancing compost quality. However, straw pretreatment by MI before co-composting is not recommended, as this practice showed limited effects on compost quality improvement. (C) 2019 Elsevier Ltd. All rights reserved.
机译：通常在秸秆和肥料的共同堆肥过程中接种商业微生物接种剂（MI），以改善堆肥过程。在本研究中，在联合堆肥之前（MI预处理）先使用MI对秸秆进行预处理，并与在联合堆肥过程中接种MI的处理（接种MI的）以及没有MI利用的处理（CK）进行比较。与CK相比，MI利用率（MI接种和MI预处理）显着提高了C / N的堆肥成熟度指数（Sig。值0.016），水溶性（有机）/ N-有机（Sig。值0.000），EC（ Sig。值0.043）和GI（Sig。值0.009），以及将最终产品的总营养含量提高了4-13％。 MI预处理在共堆肥之前破坏了秸秆结构并增强了木质纤维素降解，这表现为秸秆纤维素含量降低了8-18％，半纤维素含量降低了20-23％。然而，尽管在高温阶段，MI预处理和接种MI的处理之间的成熟度指数没有发现显着差异。总之，提出了在堆肥过程中利用MI来提高堆肥质量。但是，不建议在混合堆肥前用MI进行秸秆预处理，因为这种做法显示出对堆肥质量改善的作用有限。 （C）2019 Elsevier Ltd.保留所有权利。

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