FeII活化过一硫酸盐氧化调理剩余活性污泥.PDF

中国环境科学 2017,37(10) ：3794~3799 China Environmental Science Fe(II)活化过一硫酸盐氧化调理剩余活性污泥 * 刘昌庚 ,伍 斌,谢四才 (攀枝花学院资源与环境工程学院, 四川 攀枝花 617000) 摘要：采用 Fe(II)活化过一硫酸盐(Fe(II)-PMS)氧化对剩余活性污泥进行调理研究.结果表明,Fe(II)-PMS 氧化能有效改善污泥的脱水性能; 在优化实验条件下(pH 为 6.7,Fe(II)和 PMS 投量分别为 60 和 120mg/gTSS),标准化毛细吸附时间(SCST=CST /CST)和毛细吸附时间(CST) 0 减少率分别为 11.28 和 91.13%.Fe(II)-PMS 氧化有助于污泥稳定性提高和组分溶出,处理后 VSS 减少率为 15.74%、上清液中 TN 和 TOC 的含量较初始值分别增加 6.21 和 9.13 倍.此外,研究表明 Fe(II)-PMS 氧化能有效破解和降解胞外聚合物(EPS)(特别是蛋白质),释放出 EPS 结合水,进而显著改善污泥脱水性能. 关键词：过一硫酸盐；脱水性能；剩余活性污泥；毛细吸附时间 中图分类号：X703.1 文献标识码：A 文章编号：1000-6923(2017)10-3794-06 * Conditioning of excess activate sludge by Fe(II)-activated peroxymonosulfate oxidation. LIU Chang-geng , WU Bin, XIE Si-cai (School of Resources and Environmental Engineering, Panzhihua University, Panzhihua 617000, China). China Environmental Science, 2017,37(10)：3794~3799 Abstract ：Fe(II)-activated peroxymonosulfate (Fe(II)-PMS) oxidation applied to condition excess activated sludge was investigated in this work. The results showed that Fe(II)-PMS oxidation could effectively improve sludge dewaterability. The optimal pH and dosages of Fe(II) and PMS were 6.7, 60mg/gTSS, and 120mg/gTSS, respectively, under which the standardized-capillary suction time (SCST=CST0/CST) and CST reduction were 11.28 and 91.13%, respectively. Fe(II)-PMS oxidation was also favor of sludge solubilization and enhanced stabilization. Under the optimum experimental conditions, VSS reduction was 15.74% and the concentrations of TN and TOC in the supernatant increased 6.21 and 9.13-fold compared to their initial values, respectively. In addi