摘要
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。
Study on the coagulation of raw water from Yangtze River of South-to-North Water Transfer Project and the Luan River was carried out to compare the treatment difficulty of the two source water. The results showed that the difficulty of the treatment of the Yangtze River raw water was signifi- cantly lower than that of the Luan River raw water because of its low turbidity. The turbidity could be re- moved effectively only by conventional coagulation process with FeCl3 and PAC as coagulants. Satisfactory results were obtained when the total coagulant amount was 25 to 30 mg/L in winter, 10 to 15 mg/L in spring and 20 to 30 mg/L in summer. Compared with the Yangtze River raw water, the turbidity of the Luan River raw water was much higher over the same period, which needed more coagulant dosage to re- duce the turbidity to the similar level of the Yangtze River raw water in the coagulation jar test. When PAM was used as the coagulant aid, the turbidity of the raw water could be significantly lowered, but the influence of PAM dosage on effluent turbidity was not significant.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第1期76-79,共4页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2012ZX07404002)
关键词
引江原水
引滦原水
混凝
南水北调中线工程
raw water from Yangtze River
raw water from Luan River
coagulation
middleroute of South-to-North Water Transfer Project
