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了解使用除草剂去除树根的风险,从而提高废水处理厂的性能

Fitri Widhiastuti¹, William Rajendram², Biplob Kumar Pramanik¹

¹School of Engineering, RMIT University, GPO Box 2476, Melbourne, 3001, Victoria, Australia.

|June 28, 2023

概括

用于下水道根部控制的二,三和MCPA-dicamba除草剂可以影响废水处理. 10毫克/升的迪奎特显示出91.24%的根杀效率,与最小的化和脱抑制.

科学领域:

环境科学环境科学
废水处理废水处理
生态毒理学生态毒理学

背景情况:

除草剂通常用于控制下水道线路的根入侵.
这种做法可能会对下游的废水处理过程产生负面影响,特别是化和脱化.
了解除草剂的影响对于可持续的下水道维护和水质保护至关重要.

研究的目的:

研究二,三和MCPA-dicamba对废水处理中的化和脱化的影响.
评估这些除草剂在杀死树根方面的有效性.
确定最适合用于下水道维护的除草剂,同时考虑处理性能和根除效率.

主要方法:

监测氧气吸收率 (OUR),营养水平 (NH3-N,TP,NO3-N,NO2-N) 和化学氧气需求 (COD).
在经过处理的废水样本中评估除草剂度和腺三酸盐 (ATP) 水平.
在Acacia melanoxylon上使用精选的除草剂进行树根杀伤效率测试.

主要成果:

测试中的任何一种除草剂在高达100毫克/升的度下都没有显著影响化.
MCPA-dicamba在化过程中显示出最小的化抑制,而triclopyr在化过程中显著抑制了酸盐 (NO3-N) 的形成.
10毫克/升的二酸盐证明了91.24%的根除效率,对废水处理过程有可接受的影响.

结论:

虽然除草剂可能会影响废水处理,但二似乎是10毫克/升的下水道根控制的可行选择.
可能需要进一步的研究,以充分阐明长期影响和优化应用策略.
在环境管理中,有效的根治与对废水处理的最小干扰之间的平衡是必不可少的.

关键词:

脱化过程中的脱.杀草剂是一种除草剂.在化过程中,化根植入侵根植入侵污水处理污水处理污水处理

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