评估一组生物测试以改善废物生态毒性评估 (HP 14),使用焚烧底灰作为案例研究
B S Bandarra1, H Passos2, T Vidal3
1CIEPQPF, Chemical Process Engineering and Forest Products Research Centre. Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Pólo II, 3030-790, Coimbra, Portugal.
Journal of environmental management
|July 7, 2023
概括
优化生态毒性生物测试用于废物分类对于安全处置至关重要. 这项研究建议对焚烧底灰进行简化水上和陆地测试,提高效率和资源利用.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 废物管理 废物管理
背景情况:
- 废物生态毒性评估 (HP14) 对于废物的分类和安全处置至关重要.
- 生物测试对于复杂的废物矩阵至关重要,但它们的工业采用需要提高效率.
- 焚烧底灰 (IBA) 为生态毒性评估提供了一个复杂的矩阵.
研究的目的:
- 通过改进测试选择,持续时间和资源分配,优化生物测试电池用于废物生态毒性评估.
- 评估用于废物分类的最低无效稀释 (LID方法) 的扩展极限试验设计的效率和适用性.
- 为工业应用提出一个具有成本效益和资源效率的生物测试电池.
主要方法:
- 一系列标准水生和陆生生物测试对新鲜的焚烧底灰 (IBA) 进行了应用.
- 该评估使用了扩展限量试验设计,其中包括三个化物/固体稀释和最低无效稀释 (LID方法).
- 通过物种选择,测试时间调整,小型化和替代测试套件来评估测试效率.
主要成果:
- 缩短测试持续时间 (24小时) 是可行的,对于大夫尼亚大和Eisenia fetida.
- 微型测试和替代套件 (例如,Thamnotoxkit) 可以保持灵敏度并提供实际优势.
- 布拉西卡拉帕 (Brassica rapa) 作为陆地植物指标表现出高度敏感性;F. candida没有提供任何额外的重要信息.
结论:
- 一个精细的IBA生物测试电池包括Aliivibrio fischeri,小型化的Raphidocelis subcapitata,Daphnia magna (或Thamnocephalus platyurus),Arthrobacter globiformis,Brassica rapa,以及Eisenia fetida. 这两种类型的生物测试电池可以用于IBA.
- 使用LID方法的扩展极限测试对于废物生态毒性分类是有效的,需要更少的资源和更少的努力.
- 针对优化生物测试的建议可以提高废物管理实践,尽管废物特定的特性需要考虑.
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