河口细颗粒泥沙有机絮凝的研究综述及机理评述  

Review on the Organic-flocculation of Fine Sediments in Estuaries

作　　者：刘启贞[1] 李九发[1] 陆维昌[2] 李道季[1] 沈焕庭[1] 

机构地区：[1]华东师范大学河口海岸国家重点实验室,上海200062 [2]华东师范大学化学系,上海200062

出　　处：《海洋通报》2006年第2期74-80,共7页Marine Science Bulletin

基　　金：国家自然科学基金资助项目(50579021);973国家重点基础研究发展规划项目(2002CB412405)

摘　　要：河口海岸水域细颗粒泥沙的絮凝研究一直是人们广泛关注的课题,由于河口区水体成分较为复杂,加上水动力条件的影响,因此对絮凝的研究也是众说纷纭,本文针对河口区丰富的有机质,着重分析和综述了有机质对细颗粒泥沙粒径、表面电性质和稳定性的影响以及有机絮凝的热力学理论解释等研究成果,同时对泥沙颗粒有机絮凝的机理和有机―无机复合絮凝的模式进行了详细评述。在此基础上,结合国内有机絮凝研究现状,提出了今后的研究方向。There are many different theories on flocculation of fine sediments in estuaries for the complicated compound and the effect of hydrodynamics. This article reviews the research work on the organic-flocculation of fine sediments in estuaries. As a most important factor influencing the flocculation, organic substances affect the size, surface potential and stabilization of the fine sediments. Based on the explanation about organic-flocculation in thermodynamics theory, this article analyzed the mechanism of organic-flocculation, especially the bridging model of C - P - OM. At last, some suggestions are made for studies in the future.

关 键 词：河口 有机絮凝 细颗粒泥沙 表面电性质 

分 类 号：TV148[水利工程—水力学及河流动力学]