轮胎材料扰乱了化合物的转化,并影响了有氧颗粒污泥反应堆中的生物质结构
Piotr Jachimowicz1, Ruoting Peng2, Thorsten Hüffer3
1Department of Environmental Biotechnology, University of Warmia and Mazury in Olsztyn, 10-709 Olsztyn, Poland.
Journal of hazardous materials
|December 19, 2023
概括
废水中的轮胎材料减少了气的去除,但没有减少化学氧气需求. 有氧颗粒污泥 (AGS) 包含轮胎材料和生物降解相关化学物质,显示出对环境修复的希望.
科学领域:
- 环境科学环境科学
- 环境工程环境工程
- 微生物学 微生物学
背景情况:
- 轮胎材料 (TM) 通过释放化学物质和微塑料对环境构成风险.
- 它们对废水处理过程,特别是有氧颗粒污泥 (AGS) 的影响尚不清楚.
研究的目的:
- 研究TMs对AGS反应堆效率,生物质形态和微生物群落的影响.
- 评估AGS内部的浸轮胎添加剂的命运和生物降解.
主要方法:
- 废水处理反应堆被用不同的TM度 (10,25,50毫克/升) 剂量.
- 评估了去除,化学氧需求 (COD) 去除,颗粒形态和微生物组成.
- 在经过处理的废水中分析了漏的轮胎添加剂及其生物降解产品.
主要成果:
- TMs对化和脱产生了负面影响,降低了去除效率.
- 由于TM的存在,COD去除效率仍然不受影响.
- 添加TM增加了颗粒径;在废水中检测到BTH和氨酸,这表明生物降解由AGS.
- 适应的微生物群落,如Rubrivivax,Ferruginibacter和Xanthomonas等属显示轮胎添加物降解的潜力.
结论:
- AGS可以结合TM和与生物降解相关的化学物质,提供潜在的补救策略.
- 该研究强调了AGS在处理与轮胎材料污染的废水方面的弹性和适应能力.
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