Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, IMIDA, C/Mayor s/n, La Alberca, 30150 Murcia, Spain.
Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, IMIDA, C/Mayor s/n, La Alberca, 30150 Murcia, Spain.
J Environ Manage. 2014 Oct 1;143:106-12. doi: 10.1016/j.jenvman.2014.05.007. Epub 2014 Jun 2.
Strategies for remediation of polluted soils are needed to accelerate the degradation and natural attenuation of pesticides. This study was conducted to assess the effect of solarization (S) and biosolarization (BS) during the summer season using organic wastes (composted sheep manure and sugar beet vinasse) for the bioremediation of soil containing residues of terbuthylazine and linuron. The results showed that both S and BS enhanced herbicide dissipation rates compared with the non-disinfected control, an effect which was attributed to the increased soil temperature and organic matter. Linuron showed similar behavior under S and BS conditions. However, terbuthylazine was degraded to a greater extent in the biosolarization experiment using sugar beet vinasse than in the both the solarization and biosolarization experiments using composted sheep manure treatments. The main organic intermediates detected during the degradation of terbuthylazine and linuron were identified, enabling the main steps of degradation to be proposed. The results confirm that both S and BS techniques can be considered as a remediation tools for polluted soils containing these herbicides.
需要采取策略来修复受污染的土壤，以加速农药的降解和自然衰减。本研究旨在评估夏季利用有机废物（堆肥绵羊粪和糖甜菜废醪）进行太阳能消毒（S）和生物太阳能消毒（BS）对含有特丁津和利谷隆残留的土壤进行生物修复的效果。结果表明，与未消毒对照相比，S 和 BS 均提高了除草剂的消解速率，这归因于土壤温度和有机质的增加。S 和 BS 条件下，利谷隆表现出相似的行为。然而，在利用糖甜菜废醪进行生物太阳能消毒实验中，特丁津的降解程度大于在利用堆肥绵羊粪进行太阳能消毒和生物太阳能消毒实验中。在特丁津和利谷隆降解过程中检测到的主要有机中间产物已被鉴定，从而提出了主要的降解步骤。结果证实，S 和 BS 技术都可以被视为修复含有这些除草剂的污染土壤的工具。
