使用生物炭和Bacillus cereus修正案对甲污染的土壤进行毒性评估和降解
Hamid Rehman1,2, Ziafat Rehman3, Tonoy K Das4
1Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
Scientific reports
|December 2, 2024
概括
生物炭和Bacillus cereus在土壤中显著降解甲 (Cyp) 杀虫剂. 这种联合处理改善了土壤的健康,减轻了Cyp污染的有毒影响.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 甲 (Cypermethrin,Cyp) 是一种持久性合成甲类杀虫剂,已知对人类和环境有毒.
- 农药污染对土壤的物理化学和生物活动产生负面影响,包括微生物生物质碳和呼吸.
研究的目的:
- 研究生物炭和Bacillus cereus在甲污染土壤上的不同和联合作用.
- 评估在90天的潜伏期内,不同度的赛柏甲对土壤特性的影响.
主要方法:
- 土壤样本被化了90天,使用不同度的cypermethrin (501000毫克/公斤-1).
- 该研究评估了生物炭和Bacillus cereus单独和联合对土壤参数的影响.
- 测量包括微生物生物质碳 (MBC),土壤呼吸,酶活动,pH,电导率和阴离子交换能力.
主要成果:
- 甲显著降低了微生物生物质碳 (高达86.2%) 和土壤呼吸 (高达77%) 在1000毫克每公斤-1.1.
- 生物炭和Bacillus cereus在45天内实现了约85%的甲降解.
- 综合处理改善了土壤的pH值,降低了电导率,增加了阴离子交换能力和有机碳,并增强了大多数酶的活动.
结论:
- 生物炭和Bacillus cereus有效地修复了甲污染的土壤.
- 结合的应用增强了土壤的物理化学特性和微生物活动,促进了对农药压力的抵抗力.
- 这种协同作用的相互作用为污染环境中可持续的土壤管理提供了一个有希望的战略.
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