邢睿智,艾超凡,王梦怡,唐荣,杨祖沐,秦树平,陈志,周顺桂.畜禽粪便超高温好氧堆肥工程案例[J].农业环境科学学报,2021,40(11):2405-2411. |
畜禽粪便超高温好氧堆肥工程案例 |
Hyperthermophilic composting of livestock manure: A case study |
投稿时间:2021-09-25 |
DOI:10.11654/jaes.2021-1108 |
中文关键词: 畜禽粪便 超高温好氧堆肥 超嗜热微生物 |
英文关键词: livestock manure hyperthermophilic composting hyperthermophilic microbes |
基金项目:福建省自然科学基金项目(2020J01564);福建农林大学校杰青项目(xjq201904);福建农林大学科技创新专项基金项目(CXZX2020068A) |
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中文摘要: |
超高温好氧堆肥是高效、绿色的有机固体废弃物资源化技术,为了弥补超高温好氧堆肥在大规模工程性处理研究中的不足,通过对规模化畜禽粪便超高温好氧堆肥工程案例(处理量300 t·d-1)的分析,阐述了超高温好氧堆肥在工程应用中的原理、工艺选择、运行参数以及经济效益。槽式及条垛式规模化畜禽粪便超高温好氧堆肥的最高温度可超过80℃,20~30 d完成堆肥。堆肥结束后,含水率和有机质分别保持在44%和35%左右,EC值为2.9 mS·cm-1,水溶性有机碳和水溶性总氮的含量分别保持在3.0mg·kg-1和0.9 mg·kg-1。此外,腐熟料经过二次加工,可制备为功能性有机肥料。超高温好氧堆肥投资成本小、产品价值高,具有更高的经济效益。目前,已形成的可复制的畜禽粪便循环利用新模式,可为农林残余、生活垃圾、厨房残余等其他有机固废的规模化超高温好氧堆肥处置提供参考。 |
英文摘要: |
Hyperthermophilic composting is an efficient and green resource recycling technology of organic solid waste. To address the lack of engineering research on large-scale hyperthermophilic composting, a case of large-scale livestock manure hyperthermophilic composting was investigated(300 t·d-1), including the principles, process selection, operating parameters, and economic benefits in the application of the hyperthermophilic composting process. The results showed that the maximum temperature for large-scale hyperthermophilic composting of livestock manure was above 80℃, and fermentation was completed in 20 to 30 days with trough and windrow composting. After composting, the moisture content and organic matter were maintained at approximately 44% and 35%, respectively, the EC value was 2.9 mS·cm-1, and the levels of water-soluble organic carbon and water-soluble total nitrogen were maintained at 3.0 mg·kg-1 and 0.9 mg·kg-1, respectively. Moreover, the decomposed material could be prepared into functional organic fertilizer after secondary processing. Hyperthermophilic composting has low investment cost, high product value, and increased economic benefits. Currently, a new model of reproducible recycling and utilization of livestock manure has been developed, which can provide a reference for the large-scale hyperthermophilic composting disposal of organic solid waste, such as agricultural and forestry residues, domestic waste, and kitchen residue. |
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