在动力纤维素生物污泥处理中优化热水解:对抗性化合物和工艺效率的挑战
Nicolás Goycoechea1, Liliana Borzacconi1, Iván López1
1Biotechnological Processes for the Environment Group, Faculty of Engineering, Universidad de la República, Montevideo, Uruguay.
概括
生物污泥的热水解 (TH) 增加了生物气,但形成了反抗性化合物. 使用吸收度测量监测这些化合物是优化工业废水处理中的TH过程的关键.
科学领域:
- 环境工程 环境工程
- 生物技术是生物技术.
- 工业化学 工业化学 工业化学
背景情况:
- 热水解 (TH) 增强了生物污泥处理,增加了生物气产量.
- 然而,TH可以产生反抗性化合物,使废物管理复杂化.
- 这些化合物,包括黑胺和可溶性胺,在不良反应过程中形成.
研究的目的:
- 调查 Kraft纤维素工业生物污泥在TH过程中产生反抗性化合物的情况.
- 建立易于应用的方法来监测这些化合物.
- 为了将化合物形成与治疗严重程度相关联.
主要方法:
- 将TH应用于来自Kraft纤维素废水处理的生物污泥.
- 使用间接量化通过吸收度测量在205nm (可溶性基素),420nm (黑色素素) 和254nm (湿性类型化合物) 的间接量化.
- 测量了可溶性有机和消化后的化学氧气需求.
主要成果:
- 与未经处理的样本相比,在205,254和420nm的吸收率在TH后增加了15倍.
- 没有检测到任何已知的抑制剂,如furfural.
- 增加可溶性有机和化学氧需求与TH严重程度相关.
结论:
- 吸收度的测量是有效的监测在TH期间反抗性化合物形成.
- TH严重程度会影响这些化合物和相关参数的生成.
- 优化 TH 需要仔细监测这些指标,以管理废物复杂性.
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