Sludge Dewatering Properties Study on Sludge Thickening by Self-forming Dynamic Membrane

[Objective] The aim was to study the sludge dewatering properties in the process of sludge thickening by self-forming dynamic membrane.[Method] In the study of the sludge dewatering properties,the specific resistance of sludge was measured on sludge concentration by self-forming dynamic.[Result] The specific resistance of sludge was decreased firstly and then increased with the rising of the concentration of the sludge on the sludge thickening process by the micro net.As the sludge concentration rising from 3.48 g/L to 28.00 g/L,the specific resistance of sludge reduced from 1.53×1012 cm/g to 8.64×1011 cm/g and then up to 1.60×1012 cm/g.And the batch experiment of sludge concentration was consistent with the results which proved the phenomenon.[Conclusion] the research result provides theoretical basis for studies on sludge thickening technique.