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一种生物记者毒性特征漏程序 (Bio-TCLP) 测试电池方法用于风险评估和Cr-remediation性能优化

Naifu Jin¹, Qinwen Liu², Jiasuan Song³

¹Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, PR China; College of New Energy and Environment, Jilin University, Changchun 130021, PR China; College of Water Sciences, Beijing Normal University, Beijing 100875, PR China.

Bioresource technology

|November 30, 2025

概括

一个新的Bio-TCLP测试电池结合了六价[Cr(VI) ]土壤修复的化学和生物评估. 这种方法揭示了残留毒性,并验证了增强的生物炭-纳米级零价铁复合物,以实现有效,更安全的土壤清洁.

科学领域:

环境科学环境科学
环境化学环境化学
生态毒理学生态毒理学

背景情况:

工业用途造成的六价[Cr(VI]污染对环境构成重大风险.
传统的方法,如毒性特征漏程序 (TCLP) 评估Cr (VI) 水平,但可能无法完全捕捉毒性.
综合化学和毒理学评估对于全面的土壤修复风险评估至关重要.

研究的目的:

开发和验证一种新型的Bio-TCLP测试电池,将生物报告测试与TCLP结合起来,同时评估Cr (VI) 漏和毒性.
使用开发的Bio-TCLP方法评估生物炭和纳米级零价铁 (nZVI) 的修复性能.
评估一种新型树衍生生物炭与nZVI (EBC-nZVI) 功能化的新型生物炭在降低Cr (VI) 水平和相关生态毒性的有效性.

主要方法:

开发Bio-TCLP测试电池,通过将全细胞生物传递器测试与TCLP进行合.
应用TCLP和Bio-TCLP来评估Cr (VI) 通过生物炭和nZVI的修复.
与nZVI (EBC-nZVI) 功能化的树衍生生物炭的合成和表征.
使用Bio-TCLP试验评估Cr(VI) 减少和液毒性.

主要成果:

使用生物炭和nZVI的标准补救降低了Cr(VI) 度,但显示出与活性氧物种 (ROS) 相关的剩余液毒性.
新型EBC-nZVI复合物实现了超过80%的Cr (VI) 减少.
在Bio-TCLP测定中,EBC-nZVI显著降低了生态毒性,低于检测极限,表明有毒液的有效中和.

结论:

生物TCLP测试电池提供了一种双重功能工具,用于评估修复性能的化学和生物方面.
通过EBC-nZVI,不仅可以降低金属度,还可以减轻相关的生态毒性,从而证明它在修复Cr (VI) 污染土壤方面具有卓越的有效性.
生物TCLP方法支持更强大的风险评估框架来管理受污染的地点.

关键词:

生物炭是一种生物炭.化学稳定化学稳定生态毒性监测生态毒性监测六价的六价是一种有毒性-特征-洗-程序全细胞生物记者.

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