有效的二氧化碳缓解和提高堆肥营养素使用堆肥的生物炭
Sylwia Stegenta-Dąbrowska1, Ewa Syguła1, Magdalena Bednik2
1Department of Applied Bioeconomy, Wrocław University of Environmental and Life Sciences, Chełmońskiego Street 37a, 51-630 Wrocław, Poland.
Materials (Basel, Switzerland)
|April 9, 2024
概括
将生物炭添加到堆肥中可以显著减少有害气体排放,如二氧化碳 (CO2). 即使低剂量的堆肥生物炭,在3-6%之间,也可以将总排放量减少高达50%,并提高营养含量.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 废物管理 废物管理
背景情况:
- 堆肥释放有害气体 (CO2,CO,H2S,NH3),影响堆肥质量.
- 为了减少二氧化碳,通常需要高剂量的生物炭 (高达20%),但生物炭生产的效率较低.
- 由于生产的挑战,对较低的生物炭剂量进行研究是必要的.
研究的目的:
- 研究低剂量的堆肥衍生生物炭在堆肥过程中减轻气体排放的有效性.
- 评估不同生物炭生产温度和应用率对堆肥质量的影响.
- 确定降低排放和提高堆肥营养含量的最佳条件.
主要方法:
- 实验室实验进行了10天,以测量堆肥混合物的气体排放.
- 在550,600和650°C时产生的生物炭被添加到0-15%的干物质中.
- 使用了50,60和70°C的化温度,每天测量CO2,CO,H2S和NH3.
主要成果:
- 在密集堆肥阶段,堆肥生物炭有效减轻了二氧化碳排放.
- 低至3-6%的干物质剂量可将测量的总气体排放量减少50%.
- 最好的结果是通过在650°C生产的生物炭并在60°C应用,显著增加了宏观营养素含量.
结论:
- 低剂量的堆肥生物碳可以有效地减少堆肥造成的有害气体排放.
- 堆肥生物炭的应用增强了堆肥过程,并提高了成熟堆肥的质量.
- 这项研究表明,使用堆肥衍生生物炭作为堆肥的可持续修正案的潜力.
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