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What could be the reason for foam in textile wastewater after coagulation and flocculation when aeration is provided? 


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Foam formation in textile wastewater after coagulation and flocculation with aeration may occur due to the presence of residual surfactants or organic compounds that can stabilize foam. Additionally, the formation of aerated flocs (aeroflocs) during flocculation-flotation processes can contribute to foam generation. The use of polyelectrolytes in the treatment process can also impact foam formation, as they may interact with other components in the wastewater, potentially leading to foam production. Furthermore, the nature of suspended microbial biomass in anaerobically treated effluent, if not effectively separated, could contribute to foam formation due to the presence of hydrophobic particles and residual COD. Therefore, a combination of factors such as residual chemicals, aerated floc characteristics, and treatment chemicals can collectively contribute to foam formation in textile wastewater post-coagulation and flocculation with aeration.

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Foam in textile wastewater post-coagulation and flocculation with aeration may result from incomplete removal of hydrophobic suspended biomass, potentially due to ineffective separation processes or insufficient treatment optimization.
Foam in textile wastewater after coagulation and flocculation with aeration may result from incomplete removal of organic matter or surfactants, leading to stable foam formation.
Foam in textile wastewater post-coagulation and flocculation with aeration may result from ineffective aerated floc formation, possibly due to suboptimal operating parameters affecting solid/liquid separation efficiency.
Journal ArticleDOI
S. H. Lin, C. C. Lo 
36 Citations
Foam in textile wastewater after coagulation and flocculation with aeration may result from incomplete removal of surfactants or organic matter, impacting the efficiency of the treatment process.
Open access
Hamdy Seif, Moheb Malak 
01 Jan 2001
21 Citations
Foam in textile wastewater after coagulation and flocculation with aeration may result from incomplete organic matter removal, leading to surfactants or organic compounds causing foam formation.

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