Effect of colloid-size copper-based pesticides and wood-preservatives against microbial activities of Gram-positive Bacillus species using five-day biochemical oxygen demand test
作者： George A. Sorial , Endalkachew Sahle-Demessie , Ayenachew Tegenaw
DOI: 10.1016/J.JES.2020.12.037
关键词:
摘要: Abstract Copper-based pesticides and wood preservatives could end up in the environment during production, use, end-of-life via different pathways that cause unintended ecological adverse health effects. This paper provides effect of colloid-size Cu-based (CuPRO Kocide), micronized Cu azole (MCA-1 MCA-2) alkaline quaternary (ACQ) treated woods, Cu2+, Cu2+ spiked untreated (UTW), CuCO3 solutions against Gram-positive Bacillus species using five-day biochemical oxygen demand (BOD5) standard test. The total leached from MCA-1, MCA-2, ACQ Milli-Q water after 5 days were ~0.1, ~0.11, ~0.64 g/kg wood, respectively. However, form MCA woods was mostly ionic (> 90%). organic carbon (TOC) content any tested (UTW/MCA-1/MCA-2/ACQ) ~99% its corresponding (TC) content, whereas TOC sawdust exceeded piece/block by > 300%. dissolved (DO) consumption value presence CuCO3, CuPRO, Kocide significantly influenced particles/ions. DO UTW/MCA-1/MCA-2/ACQ organics woods. On other hand, greater than (300%) pieces/block. findings this study provide more insight into how reduce toxic effects ions species.
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