In the current study, humic acids ultrafiltration was explored using spinning basket membrane module at different transmembrane pressure drops (207, 276, 345, and 414kPa), rotational speeds (10.47, 20.99, 31.41, 52.36, and 73.30rads(-1)) and different concentration of HAs (50, 150, and 250mgL(-1)). The internal pore blocking characteristics was investigated using modified Hermia's pore clogging models like complete, standard, intermediate pore blocking, and the cake filtration model. After ultrafiltration of 50mgL(-1) solution, the cleaning process of fouled membrane was carried out using a system inbuilt back rotation of the membrane basket (10.47-52.36rads(-1)) and compared with the effect of ultrasonication (ultrasound power: 120W, frequency: 50kHz) for the same fouled membrane at the different sonication time interval (5-25min). The maximum cleaning efficiency of 88% was observed at 25min of ultrasonication of fouled membrane.