农业-工业废物的生物转化:利用腐臭爱森菌稳定家禽垃圾的混合堆肥和蠕虫堆肥工艺

IF 1.2 Q4 ENVIRONMENTAL SCIENCES
C. Masín, M. E. Fernández, M. Lescano, C. Zalazar
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引用次数: 4

摘要

摘要目的对禽畜粪便(PL)、稻壳(RH)和/或桉木屑(ES)进行堆肥和蚯蚓堆肥联合处理,以获得高质量的有机肥,避免使用生禽粪便和新鲜农业废弃物所带来的环境问题。方法按体积比例配制3种堆肥混合物:1:3 RH/PL (M1);1:2 ES/PL (M2)和0.5:1:2 RH/ES/PL (M3)。堆肥(120天)和蚯蚓(Eisenia fetida)蚯蚓堆肥(90天)在秋冬季节进行,室外和遮蔽。水分含量保持在60-70%。物理化学(pH、电导率、木质素、总碳和总氮、有机物、铵和特定阳离子)、总微生物活性(双醋酸荧光素水解)和微生物参数在两个过程中都被记录下来。最后,通过乳酸种子萌发进行植物毒性试验,比较所得有机肥的质量。结果连续堆肥-蚯蚓堆肥工艺提高了最终产品的性能。特别是,所有蚯蚓堆肥的电导率明显较低(1.81-2.28 mS cm-1),在敏感植物生长的推荐值范围内;微生物活性达到187.1 ~ 203.8µg FDA gsoil-1 h-1。蚯蚓堆肥的发芽指数大于60%,表明所获得的产品质量较高,即0.5RH:1ES:2PL的混合物,质量较好,成熟程度较高。结论采用堆肥+蚯蚓堆肥两种工艺相结合的工艺体系,可有效地将禽畜废弃物与其他有机废弃物结合,生产出稳定的有机肥。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Bioconversion of agro-industrial wastes: Combined compost and vermicompost processes using Eisenia fetida for stabilization of poultry litter
Purpose A combined treatment of composting and vermicomposting of poultry litter (PL), rice hulls (RH) and/or eucalyptus sawdust (ES) was carried out in order to obtain a high-quality organic fertilizer and avoid the environmental problems associated with the use of raw poultry manure and fresh agricultural waste materials. Methods Three composting mixtures were made at volume proportions: 1:3 RH/PL (M1); 1:2 ES/PL (M2) and 0.5:1:2 RH/ES/PL (M3). Composting (120 days) followed by vermicomposting (90 days) using earthworms (Eisenia fetida) were conducted during the autumn-winter season, outdoors and sheltered. Moisture content was kept at 60-70%. Physicochemical (pH, electrical conductivity, lignin, total carbon and nitrogen, organic matter, ammonium and specific cations), total microbial activity (fluorescein diacetate hydrolysis) and microbiological parameters were recorded throughout both processes. Phytotoxicity tests were lastly performed by means of Lactuca sativa, L. seed germination, to compare the quality of the organic fertilizers obtained. Results A sequential compost-vermicompost process enhanced the properties of the final products. Particularly, electrical conductivity was markedly lower in all vermicomposts (1.81-2.28 mS cm-1) and within the values recommended for the growth of sensitive plants; microbial activity reached 187.1-203.8 µg FDA gsoil-1 h-1. Germination Index values in vermicomposts were greater than 60%, indicating the high quality of the products obtained, being the mixture 0.5RH:1ES:2PL, the one which showed better quality and higher maturation degree. Conclusion The system that combines both processes (composting+vermicomposting) was effective to produce a stabilized organic fertilizer from poultry litter with other waste organic materials.
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来源期刊
CiteScore
2.10
自引率
26.70%
发文量
0
审稿时长
13 weeks
期刊介绍: The International Journal of Recycling of Organic Waste in Agriculture is an open access journal that publishes high-quality solicited and unsolicited articles, in all areas of Recycling of organic waste including: -Solid waste reuse in agriculture -Waste water reuse in agriculture -Utilization of organic wastes: composting -Ways to reduce, reuse and recycle organic waste -Social and economic impact of reduction, reuse and recycling of organic waste in agriculture -Methods to raise the public awareness of recycling and reuse of organic waste in agriculture -Organic waste utilization in animal and poultry nutrition -Urban food waste composting
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