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对比纳米生物炭和传统生物炭对各种生物体的环境影响

Monika Raczkiewicz¹, Aleksandra Bogusz², Bo Pan³

¹Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, 3 Maria Curie-Skłodowska Square, 20-031 Lublin, Poland.

The Science of the total environment

|November 20, 2024

概括

纳米生物炭 (n-BC) 比散装生物炭 (b-BC) 对细菌和植物更有毒,其纳米尺寸增加了生态毒性. 了解生物炭大小对于在可持续农业中安全使用至关重要.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
材料科学材料科学材料科学

背景情况:

纳米生物碳 (n-BC) 的环境风险没有得到充分研究.
减少生物炭大小可能会改变其生态毒性.
有限的数据存在于不同热量级的n-BC效应.

研究的目的:

为了研究纳米生物炭 (n-BC) 与散装生物炭 (b-BC) 的生态毒性.
评估生物炭大小对各种生物体的影响:细菌,植物和无脊椎动物.
评估n-BC在可持续农业中安全应用的风险.

主要方法:

测试的生物:阿利维布里奥·菲舍里 (细菌),Lemna小 & Lepidiumsativum (植物),大夫尼亚·马格纳 & 佛尔索米亚·坎迪达 (无脊椎动物).
测试包括液相 (浸出物在2,10,100毫克/升) 和固相 (经合组织土壤在1%,5%).
毒性终点:死亡率,繁殖抑制,根生长抑制,生物积累.

主要成果:

与b-BC相比,n-BC对A. fischeri (182886%) 的毒性显著更高,随着时间的推移而增加.
在5%度下,n-BC抑制了F. candida的繁殖,比b-BC更多.
与b-BC不同,n-BC导致L. sativum根生长抑制;两者都抑制了D. magna的繁殖.

结论:

将生物炭尺寸缩小到纳米尺度显著增加了生态毒性.
纳米尺寸可以促进无脊椎动物的生物积累,如D. magna.
生物炭原料,热解条件和尺寸是环境风险评估的关键因素.

关键词:

生物质是生物质的.碳碳碳碳碳在纳米尺度上的纳米尺度.颗粒大小颗粒大小可持续性; 可持续发展;有毒性有毒性

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