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三重冲洗并不总是使废弃塑料农药容器成为非危险废弃物

Georgios Garbounis¹, Helen Karasali², Dimitrios Komilis¹

¹Department of Environmental Engineering, Democritus University of Thrace, Xanthi 67132, Greece.

Waste management (New York, N.Y.)

|November 7, 2024

概括

废弃塑料农药容器 (WPPC) 的三重冲洗往往无法将有害活性物质 (AS) 残留量降低到法定限度以下. 容器壁上的合式AS也必须考虑合规性.

科学领域:

环境化学环境化学
废物管理废物管理
农业科学农业科学

背景情况:

废塑料农药容器 (WPPC) 在使用后可以保留危险活性物质 (AS).
监管限制,通常为0.1%w/w,将WPPC分类为危险或非危险废物.
三重冲洗是一种常见的消毒方法,但它对新农药的有效性需要评估.

研究的目的:

为15种新农药在三重冲洗前和后量化WPPC中的残留AS.
为了分析AS吸收到容器塑料上,这是以前未被评估的因素.
为了确定三重冲洗是否有效地将AS降低到危险废物值以下.

主要方法:

对15种不同的农药活性物质在56个WPPC中的残留AS进行分析.
在三重冲洗之前和之后测量AS含量.
在容器的塑料材料上吸附的AS的量化.

主要成果:

除四个外,所有未冲洗的WPPC都超过了危险的AS限制.
三重冲洗消除了68.3%至99.9%的液体AS,但平均冲洗后的水平在统计学上与14个AS中的8个冲洗前的水平相似.
化酸盐占总酸盐的3%至97%;只有阿佐克西斯特罗宾的总含量超过了0.1%重/重的危险限值.

结论:

单单三次冲洗可能无法使AS含量始终低于危险废物限值.
在容器塑料上吸收的AS质量是监管合规的关键因素.
精确的废物分类需要考虑WPPC中的剩余液体和吸附AS.

关键词:

活性物质活性物质杀菌剂是一种杀菌剂.危险废物危险废物杀草剂是一种除草剂.植物保护产品是植物保护产品.吸附吸附方式吸附吸附方式

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