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通过多重回收方法实现桃子坑资源充分利用的潜在框架
Zanpei Zhang1, Nyuk Ling Ma2, Shen Ding1
1College of Forestry, Henan Agricultural University, Zhengzhou, 450046, China.
Scientific reports
|September 30, 2025
概括
桃子坑,一个重要的农业废物,可以通过热解转化为有价值的生物炭. 这种生物炭有效吸附重金属,为桃子生产废物提供可持续的解决方案.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 桃子生产产生大量的生物废物,其中垃圾堆占废物的10%,通常通过垃圾填埋或燃烧处理,造成环境风险.
- 目前对桃子坑的处置方法缺乏可持续性,并且无法利用它们作为有价值的生物质资源的潜力.
研究的目的:
- 通过先进的回收技术,探索桃子坑作为生物质来源的价值化.
- 调查桃子坑衍生生物炭在重金属吸附方面的潜力,并将其应用于桃子行业的循环经济模式.
主要方法:
- 利用纳米催化和高效提取用于桃子坑回收利用.
- 采用差分扫描热量测量-热重量测量分析 (DSC-TG) 和热解气体染色学-质谱法 (Py-GC-MS) 来分析热解行为.
- 应用超高性能液体染色学/四极飞行时间质谱学 (UPLC/Q-TOF MS) 用于识别生物活性成分.
- 在400°C下对桃子坑进行热解,以产生生物炭,并评估其重金属吸附能力.
主要成果:
- 纳米催化剂在热解过程中极少影响体重减轻率,但影响了产品成分.
- 桃子坑富含生物活性成分,在生物医学,食品添加剂和生物能源中具有潜在的应用.
- 高质量的生物炭在400°C时回收了大约39%的产量.
- 生产的生物炭对 (Cd) 的吸附能力比 (As) 和 (Pb) 的吸附能力更强.
结论:
- 桃子坑可以通过热解有效地转化为高价值的生物炭.
- 生物炭对重金属,特别是的修复具有显著的潜力.
- 这项研究为桃子生产行业提出了一个可行的循环经济模式,将废物转化为有价值的资源.
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