稻壳絮凝剂的制备及在疏浚底泥脱水中的应用  

Preparation of Cationic Modified Flocculent by Rice Husk and its Application in Dredged Sludge Dehydration

作　　者：李妍[1] 吴燕[1] 胡保安[2] 刘禹杨[1] 刘银[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300457 [2]中交天津港航勘察设计研究院有限公司,天津300450

出　　处：《盐业与化工》2012年第3期40-42,49,共4页Jounral of Salt and Chemical Industry

摘　　要：通过对稻壳进行阳离子化改性,制备了天然有机高分子絮凝剂(RHF)。采用疏浚底泥絮凝脱水的研究,评价了RHF的絮凝脱水效果。结果表明,RHF絮凝脱水效果比CPAM略差,优于PAFC,底泥絮凝脱水的同时,能有效去除水体污染物,改善余水水质。其中CPAM/RHF复配体系呈现出优良的絮凝脱水效果,可实现底泥的瞬间絮凝沉降脱水,且余水水质较好。The natural polymer flocculeut（RHF） is prepared by cationic modified rice husk, a kind of agricultural waste. The effect of floceulation dehydration on dredged sludge by RHF is e- valuated by many a flocculation experiment. The results indicated that RHF not only play a positive role in dehydration, but also can remove water pollutants effectively. Besides, it could be found that the effect of floceulation dewatering by RHF is worse than CPAM, but better than PAFC. Above all, the CPAM/RHF complex system enabled dredged sludge to flocculate dewatering in a very short time with the promotion of water quality, It exhibits an excellent synergistic performance.

关 键 词：稻壳 阳离子改性 絮凝剂 疏浚底泥 絮凝脱水 

分 类 号：X705[环境科学与工程—环境工程]