通过添加营养物质来提高食物垃圾堆肥的质量

IF 1.2 Q4 ENVIRONMENTAL SCIENCES
John Boateng Nkansah, S. Oduro-Kwarteng, H. Essandoh, Richard Amankwa Kuffuor
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引用次数: 0

摘要

目的将城市固体废物中的食物垃圾部分转化为农业堆肥被认为是一种有效的环保选择。然而,在发展中国家,很少有生产堆肥的商业堆肥设施,这些堆肥在农业中的使用率很低,主要是因为与化肥相比,它们的营养成分较低。方法采用可可豆荚灰(CPHA)、禽粪(PM)、牛粪(CM)等添加剂,研究食物垃圾(FW)营养修正比对堆肥品质的影响。6个处理(T1、T2、T3、T4、T5、T6)和对照,堆肥处理70 d。结果不同堆肥类型的全氮、全磷和全钾含量分别为0.96 ~ 1.42%、0.19 ~ 0.78%和0.86 ~ 1.42%。在所有处理中,碳氮比均显著降低,重金属(Pb和Zn)浓度均在可接受的国际限值内。测定了堆肥对黄瓜(Cucumis sativus)的毒性。种子萌发指数(GI)以T5(仅添加PM的FW)最高,而对照(仅添加PM的FW)最低。结论使用PM、CM和CPHA有利于餐厨垃圾堆肥的富集。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhancing food waste compost quality with nutrient amendments
Purpose Recycling of food waste fraction of municipal solid waste into compost for use in agriculture is seen as an effective environmentally–friendly option. In developing countries, however, there are few commercial composting facilities producing composts whose use in agriculture is low, mainly due to their low nutrient content compared to chemical fertilizers. Method This study investigated the effect of the food waste (FW) nutrient-amendment ratio on compost quality using amendments such as Cocoa Pod Husk Ash (CPHA), poultry manure (PM), and cow manure (CM). Six treatments (T1, T2, T3, T4, T5, and T6) and control were composted for 70 days. Results The total Nitrogen, total Phosphorous, and total Potassium content ranged from 0.96–1.42%, 0.19–0.78%, and 0.86-1.42%, respectively, for the different compost types. In all treatments, the C/N ratio reduced significantly, while concentrations of heavy metals (Pb and Zn) were within the acceptable international limits. Toxicity of composts to cucumber (Cucumis sativus) was ascertained. Germination index (GI) was the highest in T5 (FW amended with PM only) whereas the control (FW only) recorded the least GI.  Conclusion This study shows that the use of PM, CM, and CPHA seems to be beneficial for the enrichment of food waste compost.
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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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