A novel Si–Al porous clay material W (reprocessed from ceramic waste) was used for Acidovorax sp. strain PM3 immobilization to promote the growth of strains and improve nitrogen and phosphorus removal performance in water treatment systems. The porous clay material W was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy indicating that porous clay material W was a type of mullite with 63.52 m2/g specific surface area. After immobilization, the maximum biomass increased 2.7 times the specific growth rate and the removal rates of chemical oxygen demand (COD), ammonia (NH4+–N), and total phosphorus (TP) by the immobilized PM3 were 42.99, 29.19, and 11.76% higher than the free strain after 24 h. The Monod equation showed that the growth rate and processing speed of immobilized PM3 increased. The maximum adsorption capacities of COD and NH4+–N onto porous clay material W were 2.33 and 0.32 mg/g on the basis of Langmuir isotherm. The removal capacities of COD, NH4+–N, and TP by the immobilized PM3 were 588.24, 20.37, and 5.06 mg/l, respectively, as shown by kinetic studies. These results demonstrated that porous clay material W could improve the efficiency of microbial nitrogen and phosphorus removal, and the immobilized microorganism system could effectively treat domestic sewage. The adsorption isotherms can well describe the adsorption process. The maximum adsorption capacity of COD and NH4+–N on porous clay material W is 2.33 and 0.32 mg/g, respectively. Kinetic studies showed that the removal capacity of immobilized PM3 to COD, NH4+–N, and TP was 58.824, 20.37, and 5.06 mg/l, respectively.

中文翻译：

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一种新型 Si-Al 多孔粘土材料作为固相载体在固定 Acidovorax sp. 中的应用。PM3处理生活污水

一种新型的 Si-Al 多孔粘土材料 W（从陶瓷废料中回收）用于 Acidovorax sp。菌株 PM3 固定化以促进菌株生长并提高水处理系统中的脱氮除磷性能。多孔粘土材料 W 通过 X 射线衍射、傅里叶变换红外光谱和扫描电子显微镜表征，表明多孔粘土材料 W 是一种具有 63.52 m2/g 比表面积的莫来石。固定化后，最大生物量增加了2.7倍，固定化PM3对化学需氧量（COD）、氨（NH4+-N）和总磷（TP）的去除率为42.99、29.19和11.76% 24 小时后高于自由应变。Monod方程表明固定化PM3的生长速率和处理速度增加。根据朗缪尔等温线，COD 和 NH4+–N 在多孔粘土材料 W 上的最大吸附容量分别为 2.33 和 0.32 mg/g。动力学研究表明，固定化 PM3 对 COD、NH4+–N 和 TP 的去除能力分别为 588.24、20.37 和 5.06 毫克/升。这些结果表明多孔粘土材料W可以提高微生物脱氮除磷的效率，固定化微生物系统可以有效处理生活污水。吸附等温线可以很好地描述吸附过程。COD 和 NH4+–N 在多孔粘土材料 W 上的最大吸附容量分别为 2.33 和 0.32 mg/g。动力学研究表明，固定化 PM3 对 COD、NH4+–N 和 TP 的去除能力分别为 58.824、20.37 和 5.06 mg/l。