Surappanahalli Rajanna Sowmya, Madhu Gattumane Motappa, Madhusoodana Chengala Damodara, Govindarajan Adithya
Department of Chemical Engineering, Ramaiah Institute of Technology, Bengaluru, Karnataka 560054, India.
BHEL, Prof. CNR Rao Circle, IISc Post, Malleswaram, Bengaluru, Karnataka 560012, India.
Membranes (Basel). 2019 Apr 2;9(4):47. doi: 10.3390/membranes9040047.
In the present study, a submerged ceramic membrane bioreactor was used to effectively treat industrial wastewater. The outcome of membrane coatings on the efficacy of the membrane was investigated using a silicon carbide (SiC) coating. The flux data obtained from the study were fitted into two mathematical models, namely, the standard pore blocking model (SPBM) and the complete pore plugging model (CPPM) in order to determine the fouling mechanism. It was observed that the SPBM fit with a minimum coefficient of regression of 0.95, suggesting that particles retained on the pore walls were smaller than the average size of membrane pores. An increase in dissolved oxygen (DO) of up to 225% was noted. The significant improvement of the water quality in terms of DO, chemical oxygen demand (COD) and turbidity of coated membrane emphasizes the fact that the membrane coating increases the efficacy of water treatment in membrane bioreactors.
在本研究中，采用浸没式陶瓷膜生物反应器有效处理工业废水。使用碳化硅（SiC）涂层研究了膜涂层对膜效能的影响。为了确定污垢形成机制，将研究获得的通量数据拟合到两个数学模型中，即标准孔堵塞模型（SPBM）和完全孔堵塞模型（CPPM）。观察到SPBM的拟合回归系数最小值为0.95，这表明保留在孔壁上的颗粒小于膜孔的平均尺寸。溶解氧（DO）增加了高达225%。涂层膜在溶解氧、化学需氧量（COD）和浊度方面水质的显著改善强调了膜涂层提高了膜生物反应器中水处理效能这一事实。
