一种用于评估和验证生物化学甲潜力测试的方法,该测试是用填埋的城市固体废物完成的
Tyler Jp Casavant1, Kerry McPhedran1,2, Ian R Fleming1
1Department of Civil, Geological and Environmental Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
概括
城市固体废物 (MSW) 的生物化学甲潜力 (BMP) 测试需要标准化. 使用预测最终BMP (BMPULT) 变化率的基于性能的新型终点,可以在缩短测试时间的情况下获得准确的结果.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 生物技术是生物技术.
背景情况:
- 生物化学甲潜力 (BMP) 测试对于评估城市固体废物 (MSW) 在垃圾填埋场中的可降解性至关重要.
- 目前的BMP测试持续时间没有标准化,这阻碍了在不同地点进行可靠的比较.
- 现有的方法往往需要长时间的测试期,增加时间和资源需求.
研究的目的:
- 解决BMP测试持续时间缺乏标准化的问题.
- 确定确定确定BMP测试完成的准确和有效方法.
- 为BMP测试提出一种新的基于绩效的终点.
主要方法:
- 对23个长期BMP测试 (115-150天) 的分析,以模拟最终的BMP (BMPULT) 预测.
- 评估准确的BMPULT预测所需的数据量.
- 基于预测BMPULT随时间的相对变化 (dBMPULT/dt) 的基于绩效的完成指标的开发和验证.
主要成果:
- 没有一个固定的测试持续时间为BMPULT预测提供了准确性和效率.
- 提出了一种基于性能的指标,即绝对规范化的dBMPULT/dt.
- 对于dBMPULT/dt (<2.5,<1.5,和<0.6% day−1) 的特定值与预测的BMPULT精度相对应,分别在真实值的20%,10%和5%之内.
结论:
- 实施BMP测试完成的基于绩效的指标使得使用部分数据集成为可能.
- 这种方法显著减少了实验时间和资源需求.
- 拟议的指标确保了BMPULT结果的可靠验证,改善了站点间的可比性.
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