Disposal of mixed-organic wastes by continuous high-temperature composting

文献类型： 外文期刊

第一作者： Zhao, Fengwu

作者： Zhao, Fengwu;Wang, Guirong;Li, Xiaoming;Liang, Jianping;Zhao, Fengwu

作者机构：

关键词： mixed-organic wastes;continuous high-temperature composting;nutrient composition;dominant microflora

期刊名称：ADVANCES IN CHEMICAL ENGINEERING, PTS 1-3

ISSN： 1022-6680

年卷期： 2012 年 396-398 卷

页码：

收录情况： SCI

摘要： The present investigation was conducted to degrade mixed-organic wastes using composting with the optimal parameters of pH, temperature, the ratio of carbon and nitrogen (C/N), moisture and oxygen contents. All these procedures can be carried out within a period of 30 days. After composting, we recorded decreases in total heavy metal contents and ascarid-egg mortality, significant increases of the humus, organic matter, nitrogen, phosphorus and potassium contents and the microorganism numbers in the compost. Furthermore, 6 strains of thermophilic bacterial were isolated from the produced compost. On the basis of their small-subunit ribosomal RNA-encoding DNA (rDNA) sequences and in comparison with authentic strains, the 6 strains were identified as belonging to Paenibacillus polymyxa and Bacillus species and thereby concluded to be the dominant microflora in the composting process.

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