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一个两级无氧EGSB反应器系统的长期性能和活动研究,该系统处理复杂和有毒的工业废水

Ruben Garcia-Tirado¹, Emma Fernandez-Crespo¹, Xavier Font²

¹Department of Mechanical Engineering and Construction, Jaume I University, Castellón de la Plana, Spain.

Water environment research : a research publication of the Water Environment Federation

|September 3, 2024

概括

这项研究表明,两级扩展颗粒式污泥床 (EGSB) 反应堆可以处理复杂的石化废水. 长期运行需要定期重新排水,因为慢性毒性会影响无氧生物质.

科学领域:

环境工程环境工程
生物技术是生物技术.
废水处理废水处理

背景情况:

无氧处理是有效的工业废水,生产生物气.
石化废水的复杂性和毒性限制无氧反应堆的实施.
扩展颗粒床 (EGSB) 反应器为挑战废水提供高效率.

研究的目的:

研究石油化工废水处理的两阶段EGSB系统.
评估COD清除和生物气生产的操作参数 (OLR,HRT).
评估长期运行的生物质活动和废水毒性.

主要方法:

经营的板和试点规模的两级EGSB反应堆.
研究了有机载荷率 (OLR) 和液压保留时间 (HRT) 的影响.
监控的化学氧气需求 (COD) 清除,生物气产量,组成,硫化物 (H2S),特定甲原性活性 (SMA) 和毒性.

主要成果:

在试点规模上,达到了24小时的最佳总HRT,达到56.30%的COD和31.68%的SO4^2-去除.
平均生物气产量为93.47 NL/天,其中67.01%为CH4和5210.11 ppmv H2S.
慢性毒性在600天后降低了SMA的数量,需要重新排卵.

结论:

两级EGSB反应堆可用于处理复杂的石化废水 (0.97-1.74 gCOD/L/day OLR).
废水对无氧生物质具有抑制性和毒性作用.
由于慢性毒性,定期重新排水对于持续的长期无氧治疗至关重要.

关键词:

据报道,EGSB是欧洲社会科学基金会.无氧处理无氧处理慢性毒性慢性毒性复杂的废水复杂的废水甲原性活性测试甲原性活性测试

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