【摘要】 以聚合氯化铝 (PAC)、聚合硫酸铁 (PFS)和聚丙烯酰胺 (PAM)为混凝剂处理餐饮废水 ,探讨了 PAC、PFS和 PAM在单独和复合使用时的混凝性能。结果表明 ,最佳混凝条件为 :PAC+PAM的用量为 (30 0 +1) m g·L- 1 ,适宜 p H值为 7.5～ 8;PFS+PAM的用量为 (30 0 +2 ) mg· L- 1 ,适宜 p H值为 9左右。阴离子型 PAM与 PAC复合使用的混凝效果最好 ,COD去除率可达 91.4 2 %。更多还原

【Abstract】 Aluminium polychloride(PAC)、ferric polysulfate(PFS) and polyacrylamide (PAM) have been used as coagulating agents to treat restaurant wastewater. The coagulation behaviours have been studied when PAC, PFS and PAM were used independently and used together. The results show that the optimum conditions were as follows:the dosage of PFS+ PAM was (300+2)mg/L when pH was about 9; the dosage of PAC+PAM was (300+1)mg/L when pH was 7.5~8.0.The coagulation effect of PAC+anion PAM was the best which the removal rate of COD was up to 91.42%.更多还原