Abstract Two kinds of biocarriers were adopted and a combined process of “AMC (Anaerobic microorganism carrier)-UASB and PBG (Porous bio-gel)-MBBR” was operated at the pilot scale for the treatment of real textile wastewater. The influence mechanism of the two carriers on the start-up, pollutant removal and sludge reduction were investigated within 118 days of operation. The dominant functional bacteria in anaerobic and aerobic systems were identified by high-throughput sequencing, and the possible ways and related mechanisms of nutrient removal and sludge reduction were analyzed based on the data. 37.0 ± 7.5 % and 53 ± 12.7 % of COD removal efficiencies were achieved in anaerobic system and aerobic system, respectively. Ammonia nitrogen concentration decreased from 20 to 45 to 3.49 ± 0.54 mg/L after treatment. An anaerobe was found to be closely related to color removal, which existed in both anaerobic and aerobic systems, achieving 84.0 % of color removal. With the operation of the system, the sludge yield decreased gradually. The sludge yields of anaerobic and aerobic systems were calculated individually and compared with similar studies. Aging biofilms were characterized to explore the factors associated with biofilm renewal.

中文翻译：

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UASB-MBBR双载体升级配置试点研究：处理效果、污泥减量及功能微生物鉴定

摘要 采用两种生物载体，采用“AMC（厌氧微生物载体）-UASB和PBG（多孔生物凝胶）-MBBR”组合工艺进行实际纺织废水处理的中试规模。运行118天，考察了两种载体对启动、污染物去除和污泥减量的影响机理。通过高通量测序鉴定厌氧和好氧系统中的优势功能菌，并基于数据分析去除养分和污泥的可能途径和相关机制。在厌氧系统和好氧系统中分别实现了 37.0 ± 7.5 % 和 53 ± 12.7 % 的 COD 去除效率。处理后氨氮浓度从 20 至 45 降至 3.49 ± 0.54 mg/L。发现厌氧菌与脱色密切相关，厌氧和好氧系统中均存在厌氧菌，可实现 84.0% 的脱色。随着系统的运行，污泥产率逐渐下降。厌氧和好氧系统的污泥产量分别计算并与类似研​​究进行比较。表征老化生物膜以探索与生物膜更新相关的因素。