EPS的质量浓度与膜污染呈线性关系,即污泥中的EPS含量越高,污染阻力越大,膜污染也越严重。2、EPS的种类对膜污染的影响 EPS可分为紧密粘附EPS(简称TB-EPS)和松散附着EPS(简称LB-EPS),EPS的种类不同对于膜污染的贡献程度也不同。与紧密粘附EPS相比,松散附着EPS与膜污染阻力呈现强显著相关。松散附着EPS是引起污...
Further analysis revealed that the LB–EPS fraction was responsible for the transportation of nano-CuO (logKM>5.66), while the mobility of nano-Fe3O4would be influenced by organic ligands in the TB–EPS fraction (logKM>6.28). Based on the results, the toxicity of nanoparticles in the ...
the loosely bound (LB) EPS and tightly bound (TB) EPS fractions from sludge floc. Sludge settleability and dewaterability were found to be much more strongly correlated with the concentra- tion of LB-EPS than with the concentration of TB-EPS, and excessive LB-EPS was always related to ...
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The results showed that the tightly bound-EPS (TB-EPS) were composed of polysaccharides and protein in variable ratios, while loosely bound-EPS (LB-EPS) contains almost no protein. Quartz crystal microbalance with dissipation studies demonstrated that the adsorption of TB-EPS to solid surface was...
The amount of total EPS, TB-EPS, and the carbohydrate and protein contents in TB-EPS were independent of the C/N ratio. In LB-EPS, the protein content increased and the carbohydrate content decreased at decreased C/N ratio, whereas the protein content decreased and the carbohydrate content ...
The results showed that for two excess sludges (called sludge A and sludge B), the tightly bound EPS (TB-EPS) fraction possessed a high flocculating rate to kaolin suspension compared with the other EPS fractions [i.e., supernatant, slime, and loosely bound EPS (LB-EPS) fraction] (>...
The polysaccharide content in slime EPS (SL-EPS) and loosely bound EPS (LB-EPS) increased gradually with time when the Cr(VI) concentration increased from 0 to 200 mg/L, with the highest polysaccharide content being higher than 2500 渭g/mL. In contrast, the change in polysaccharides in ...