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对南水北调引江原水进行混凝处理,并与同期引滦原水的混凝处理结果进行对比。结果表明,引江原水的浊度不高,仅投加混凝剂进行常规混凝处理即可被有效去除;当采用Fe Cl3和PAC复合投加时,低温期、常温期、高温期混凝剂总量分别控制在(25~30)、(10~15)、(20~30)mg/L均可达到较好的处理效果。与引江原水相比,同期引滦原水的浊度明显偏高,需要较高的混凝剂投量才能将出水浊度降至与同期引江原水相似水平;投加阴离子型PAM助凝剂可显著降低原水浊度,但PAM投量对出水浊度的影响并不显著。
On the South-North Water Diversion River raw water coagulation treatment, and with the same period of the Luanhe Raw Water coagulation treatment results were compared. The results showed that the turbidity of raw water from the Yangtze River was not high and could be effectively removed only by adding coagulant to conventional coagulation treatment. When Fe Cl3 and PAC were added together, the coagulation at low temperature, normal temperature and high temperature The total amount of the medicament can be controlled at (25-30), (10-15) and (20-30) mg / L, respectively. Compared with that of the original water from the Yangtze River, the turbidity of the raw water from the Luanhe River was significantly higher over the same period, requiring a higher dosage of coagulant to reduce the turbidity of the effluent to a level similar to that of the raw water from the Yangtze River during the same period. Adding an anionic PAM coagulant Can significantly reduce the turbidity of raw water, but the impact of PAM dosage on effluent turbidity is not significant.