生物废物和可生物降解塑料的联合消化产生的消化物是否会影响土壤和水生生物?
M Salomez1, A Lallement2, K Pipereau3
1TotalEnergies, OneTech, CSTJF, Avenue Larribau, 64018 Pau, France.
The Science of the total environment
|March 27, 2025
概括
生物气消化剂对大多数生物体没有生态毒性,除了对番茄生长有轻微影响外. 与可生物降解塑料一起消化生物废物并没有改变这些生态毒理效应.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 生物技术是生物技术.
背景情况:
- 不断扩大的生物气体行业需要了解消化物生态毒性.
- 消化剂的应用可以通过传播和土壤浸影响陆地和水生生态系统.
- 评估与可生物降解塑料共同消化的生物废弃物的消化物至关重要.
研究的目的:
- 评估生物废物消化物的短期生态毒理学影响,有或没有生物可降解塑料 (PLA,PHB),对多种陆地和水生生物体.
- 为了比较消化效应与未受精的土壤和矿物肥的影响.
- 调查与消化剂中的残留生物降解塑料相关的潜在生态毒性.
主要方法:
- 微观宇宙实验使用六种生物指标:小麦,西红,土壤细菌,土虫,草和水.
- 标准化实验室生态毒理学试验.
- 在受控的和水平下应用消化剂及其土壤浸出物.
主要成果:
- 在小麦,土壤细菌,虫,草和水上的消化物或液中没有观察到显著的生态毒性.
- 与化学肥料相比,生物废物消化剂观察到西红干空气生物质的显著减少 (平均23%).
- 对于任何生物指标来说,仅从生物废弃物中消化和与可生物降解塑料一起消化的消化物之间没有发现生态毒理学差异.
结论:
- 生物废物消化剂,即使与可生物降解塑料一起消化,对大多数测试生物体具有最小的生态毒性.
- 生物废物消化剂可能会对番茄的生长产生负面影响,因此需要进一步调查.
- 没有检测到与消化剂中的残留生物降解塑料相关的明显短期生态毒性.
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