Department of Environmental Science and Engineering, CSIR - Central Leather Research Institute (CLRI), Adyar, Chennai 20, India.
Department of Environmental Science and Engineering, CSIR - Central Leather Research Institute (CLRI), Adyar, Chennai 20, India.
J Environ Sci (China). 2018 May;67:67-77. doi: 10.1016/j.jes.2017.07.020. Epub 2017 Aug 2.
The present investigation deals with an application of integrated sequential oxic and anoxic bioreactor (SOABR) and fluidized immobilized cell carbon oxidation (FICCO) reactor for the treatment of domestic wastewater with minimum sludge generation. The performance of integrated SOABR-FICCO system was evaluated on treating the domestic wastewater at hydraulic retention time (HRT) of 3hr and 6hr for 120days at organic loading rate (OLR) of 191±31mg/(L·hr). The influent wastewater was characterized by chemical oxygen demand (COD) 573±93mg/L; biochemical oxygen demand (BOD) 197±35mg/L and total suspended solids (TSS) 450±136mg/L. The integrated SOABR-FICCO reactors have established a significant removal of COD by 94%±1%, BOD by 95%±0.6% and TSS by 95%±4% with treated domestic wastewater characteristics COD 33±5mg/L; BOD 9±0.8mg/L and TSS 17±9mg/L under continuous mode of operation for 120days. The mass of dry sludge generated from SOABR-FICCO system was 22.9g/m. The sludge volume index of sludge formed in the SOABR reactor was 32mL/g and in FICCO reactor it was 46mL/g. The sludge formed in SOABR and FICCO reactor was characterized by TGA, DSC and SEM analysis. Overall, the results demonstrated that the integrated SOABR-FICCO reactors substantially removed the pollution parameters from domestic wastewater with minimum sludge production.
本研究采用集成序批式好氧/缺氧生物反应器（SOABR）和固定化细胞流化床碳氧化（FICCO）反应器，以最小的污泥生成量处理生活污水。在水力停留时间（HRT）为 3 小时和 6 小时、有机负荷率（OLR）为 191±31mg/（L·hr）的条件下，对集成 SOABR-FICCO 系统处理生活污水的性能进行了 120 天的评估。进水污水的化学需氧量（COD）为 573±93mg/L；生化需氧量（BOD）为 197±35mg/L，总悬浮固体（TSS）为 450±136mg/L。集成 SOABR-FICCO 反应器对 COD 的去除率达到了 94%±1%，BOD 的去除率达到了 95%±0.6%，TSS 的去除率达到了 95%±4%，处理后的生活污水特性为 COD 33±5mg/L，BOD 9±0.8mg/L，TSS 17±9mg/L。在连续运行 120 天后，SOABR-FICCO 系统产生的干污泥量为 22.9g/m。SOABR 反应器中形成的污泥容积指数为 32mL/g，FICCO 反应器中形成的污泥容积指数为 46mL/g。通过 TGA、DSC 和 SEM 分析对 SOABR 和 FICCO 反应器中形成的污泥进行了表征。总的来说，结果表明，集成 SOABR-FICCO 反应器可以有效地去除生活污水中的污染参数，同时产生的污泥量最少。
