- 作者: 馬文浩 ,張靖晨 ,周 偉 ,宋楷笛
- 論文摘要
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岳陽王家河疏浚底泥的絮凝沉降試驗研究∗
馬文浩1 ,張靖晨2 ,周 偉1 ,宋楷笛1
(1.中國建筑第二工程局有限公司,北京 101101; 2.中國市政工程華北設計研究總院有限公司,天津 300202)
[摘要] 針對河道疏浚底泥不易沉降的問題,以王家河疏浚底泥為研究對象,通過一定配合比的陰離子型聚丙烯酞胺 (PAM)?聚合氯化鋁(PAC),FeCl 3,Na2CO3 等有機和無機絮凝劑,利用沉降柱進行泥漿絮凝沉降試驗,選出絮凝劑的最佳 復合配合比。 研究表明,每 1 000mL 疏浚底泥中加入 10mL 的 PAM+2g PAC+2g Na2CO3 為最佳絮凝劑配合比方案。
[關鍵詞] 疏浚底泥;絮凝劑;配合比;試驗;沉降
[中圖分類號] TU992. 3 [文獻標識碼] A [文章編號] 1002-8498(2020)18-0086-04
Research on Experiment Concerning Flocculation and Sedimentation of Dredged Slurry of Wangjia River in Yueyang City
MA Wenhao 1 , ZHANG Jingchen 2 , ZHOU Wei 1 , SONG Kaidi 1
(1. China Construction Second Engineering Bureau Co., Ltd., Beijing 101101, China; 2. North China Municipal Engineering Design & Research Institute Co., Ltd., Tianjin 300202, China)
Abstract:In terms of the problem that the slurry at the bottom of channels is not easily settled, the is paper takes the dredged slurry at the bottom of Wangjia river as the research object. By having a certain proportion of organic and inorganic flocculants of PAM, PAC, FeCl 3 and Na2CO3 , through the experiment of the settlement of flocculation by the use of settling column, the best ratio of the compound flocculant is selected. The study shows that putting 10mL PAM+2g PAC+2g Na2CO3 to 1 000mL dredged slurry is the best plan of the mixture.
Keywords:dredging slurry; flocculant; mix proportion; tests; sedimentation