Abstract:

Stimulated printing and dyeing wastewater has been treated by hydrolysis acidification-aerobic process. The changes of sludge extracellular polymers and microorganism hydrophobic nature in hydrolysis acidification pool and aerobic pool when reflux ratios are 50% and 80%, respectively, are compared. The optimal reflux ratio is discussed. The results show that when reflux ratio is 80%, the sludge extracellular polymer and microorganism hydrophobic nature are superior to that when reflux ratio is 50%.

Key words: extracellular polymer, hydrophobic nature, chemical oxygen demand, sludge properties

摘要：

通过模拟水解酸化-好氧工艺，并以模拟印染废水为处理对象，比较分析了50%与80% 的回流比下，水解酸化池与好氧池中污泥胞外聚合物与微生物疏水性的变化，探讨了最适回流比。结果表明，回流比为80%的工艺的污泥胞外聚合物、微生物疏水性及污泥性质优于回流比为50%的工艺。

关键词: 胞外聚合物, 疏水性, 化学需氧量, 污泥性质

CLC Number: 

• X703