Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain.
Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain.
Bioresour Technol. 2021 Jan;319:124170. doi: 10.1016/j.biortech.2020.124170. Epub 2020 Sep 24.
This research evaluated the economic feasibility of anaerobic membrane bioreactor (AnMBR) as a mainstream technology for municipal sewage treatment. To this end, different wastewater treatment plant (WWTP) layouts were considered, including primary settler, AnMBR, degassing membrane, partial nitritation-Anammox, phosphorus precipitation and sidestream anaerobic digestion. The net treatment cost of an AnMBR-WWTP decreased from 0.42 to 0.35 € m as the sewage COD concentration increased from 100 to 1100 mg COD L due to revenue from electricity production. However, the net treatment cost increased above 0.51 € m when nutrient removal technologies were included. The AnMBR and partial nitritation-Anammox were the costliest processes representing a 57.6 and 30.3% of the treatment cost, respectively. Energy self-sufficiency was achieved for high-strength municipal sewage treatment (1000 mg COD L) and a COD:SO-S ratio above 40. Overall, the results showed that mainstream AnMBR has potential to be an economically competitive option for full-scale implementation.
本研究评估了厌氧膜生物反应器（AnMBR）作为城市污水处理主流技术的经济可行性。为此，考虑了不同的污水处理厂（WWTP）布局，包括初沉池、AnMBR、脱气机膜、部分亚硝化-厌氧氨氧化、磷沉淀和侧流厌氧消化。由于电力生产的收入，当污水 COD 浓度从 100mg COD/L 增加到 1100mg COD/L 时，AnMBR-WWTP 的净处理成本从 0.42 欧元/m 降低到 0.35 欧元/m。然而，当包括营养物质去除技术时，净处理成本增加到 0.51 欧元/m 以上。AnMBR 和部分亚硝化-厌氧氨氧化是最昂贵的工艺，分别占处理成本的 57.6%和 30.3%。对于高强度城市污水处理（1000mg COD/L）和 COD:SO-S 比高于 40 的情况，可以实现能源自给自足。总的来说，研究结果表明，主流 AnMBR 具有成为全面实施的经济上有竞争力的选择的潜力。
