对真空辅助发酵进行技术和经济分析,以在全尺度上增加增强的生物去除
Maxwell Armenta1, Farokh Laqa Kakar1, Ahmed Al-Omari1
1Brown and Caldwell, Various States, Walnut Creek, California, USA.
概括
IntensiCarb® 技术将发酵量减少 50%,并提高挥发性脂肪酸的产量,以去除. 虽然FeCl3的添加是最具成本效益的,但IntensiCarb®为废水处理提供了具有竞争力的,潜在的可行的替代方案.
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:
- 增强的生物去除 (EBPR) 对于管理废水废水质量至关重要.
- 传统的去除方法包括化学添加和标准发酵过程.
- 工艺强化技术为效率和成本效益提供了潜在的改进.
研究的目的:
- 评估真空发酵技术IntensiCarb®的工艺性能和生命周期成本.
- 将IntensiCarb®与化学添加 (FeCl3) 和常规发酵进行比较,以消除总 (TP).
- 评估与不同TP清除策略相关的温室气体 (GHG) 排放.
主要方法:
- 使用IntensiCarb®,对真空辅助工艺强化进行实验分析.
- 生命周期成本评估,比较IntensiCarb®,化学添加和传统发酵.
- 对每个评估方法的温室气体排放量进行估计和比较.
主要成果:
- IntensiCarb®可减少50%的工艺量,并提高挥发性脂肪酸 (VFA) 的产量.
- 根据当前成本,FeCl3的化学添加是TP去除最有利的经济优势.
- IntensiCarb®的生命周期成本与传统发酵和MicroC® 2000的生命周期成本相提并论,以实现更低的废水TP.
结论:
- IntensiCarb®是一种通过EBPR减少废水TP的竞争性技术.
- 这项技术显示了EBPR全规模设施的潜在经济可行性.
- 与传统发酵或MicroC® 2000相比,添加FeCl3和IntensiCarb®的温室气体排放估计较高.
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