CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, 46100 Burjassot, Valencia, Spain.
FCC Aqualia, S.A., Avenida Camino de Santiago, 40, 28050 Madrid, Spain.
Bioresour Technol. 2020 Oct;314:123763. doi: 10.1016/j.biortech.2020.123763. Epub 2020 Jul 2.
Feasibility of an AnMBR demonstration plant treating urban wastewater (UWW) at temperatures around 25-30 °C was assessed during a 350-day experimental period. The plant was fed with the effluent from the pre-treatment of a full-scale municipal WWTP, characterized by high COD and sulfate concentrations. Biodegradability of the UWW reached values up to 87%, although a portion of the biodegradable COD was consumed by sulfate reducing organisms. Effluent COD remained below effluent discharge limits, achieving COD removals above 90%. System operation resulted in a reduction of sludge production of 36-58% compared to theoretical aerobic sludge productions. The membranes were operated at gross transmembrane fluxes above 20 LMH maintaining low membrane fouling propensities for more than 250 days without chemical cleaning requirements. Thus, the system resulted in net positive energy productions and GHG emissions around zero. The results obtained confirm the feasibility of UWW treatment in AnMBR under mild and warm climates.
在 350 天的实验期间，评估了在 25-30°C 左右的温度下使用 AnMBR 示范厂处理城市废水（UWW）的可行性。该工厂使用来自大型市政 WWTP 预处理的废水作为进料，其特点是 COD 和硫酸盐浓度高。尽管部分可生物降解的 COD 被硫酸盐还原菌消耗，但 UWW 的可生物降解性达到了 87% 左右。出水 COD 仍低于排放标准，COD 去除率超过 90%。与理论好氧污泥产量相比，系统运行使污泥产量减少了 36-58%。在无需化学清洗的情况下，膜的总跨膜通量超过 20 LMH，保持了低膜污染倾向，超过 250 天。因此，该系统实现了净正能源生产和温室气体排放接近零。所获得的结果证实了在温和温暖气候下使用 AnMBR 处理 UWW 的可行性。
