在使用城市废物活性污泥扩大生产和质量控制中证明使用聚酸酸盐的性能
Ruizhe Pei1, Erik de Vries2, Angel Estévez1
1Department of Biotechnology, Delft University of Technology, Delft, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Leeuwarden, The Netherlands.
Water research
|January 30, 2025
概括
使用废弃活性污泥 (WAS) 进行工业聚酸 (PHA) 生产是可扩展的. 使用WAS的示范规模PHA生产产生了与试点规模相比的结果,证明了技术的稳定性和商业实施的准备.
科学领域:
- 生物技术是生物技术.
- 环境工程 环境工程
- 聚合物科学 聚合物科学
背景情况:
- 从废弃活性污泥 (WAS) 进行试点规模的聚化酸盐 (PHA) 生产显示出有前途.
- 在科学文献中,使用WAS进行PHA生产的工业升级数据有限.
研究的目的:
- 为了比较PHA生产在示范规模 (4m3) 与试点规模 (200L) 使用工业相关的设备.
- 评估PHA从WAS生产的可扩展性和稳定性.
主要方法:
- 使用市政废水处理厂的 WAS 运行了 4 m3 PHA 生产过程.
- 在示范和试点规模之间比较PHA含量和生产产量.
- 分析了之前的试点和演示运行的历史数据.
主要成果:
- 与试点规模 (0.41 ± 0.02 gPHA/gVSS和0.42 ± 0.02 gCOD/gCOD) 相比,示范规模的PHA生产实现了统计学上相似的PHA含量 (0.45 ± 0.05 gPHA/gVSS) 和产量 (0.39 ± 0.07 gCOD/gCOD).
- 结果与之前的试点经验和历史数据保持一致,证明了可扩展性和稳定性.
- 确定温度和泡控制是工业实施的关键因素.
结论:
- 从WAS生产PHA的技术是可扩展和强大的.
- 来自WAS的原料质量预计会影响PHA共单体含量和混合物分布.
- 集中式提取设施可以为工业PHA生产提供经济效益和更好的产品质量控制.
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