水利工程污损生物沼蛤的物理去除技术研究

发布时间：2018-05-13 06:13

  本文选题：沼蛤 + 生物污损　； 参考：《长江科学院院报》2016年10期

【摘要】：我国南方水利工程常受到沼蛤(limnoperna fortunei)生物污损的危害,沼蛤高密度粘附在结构面上会改变建筑物功能结构,影响水利工程安全运营。通过研究沼蛤在离水干燥、高温水浴、超声波、电流作用下的死亡特征,探讨利用物理方法去除沼蛤的工程技术可行性。研究结果表明:沼蛤在环境温度为28℃的离水干燥条件下,3d就会因缺水而死亡;沼蛤在水浴温度为44℃的环境中的死亡时间为10h,当水浴温度55℃时,在其接触高温水体瞬间就会死亡,内部组织与角质壳分离、脱落;在沼蛤集中的水环境中加载超声波和高压电流也能灭杀沼蛤幼虫及成贝,有效抑制其大量繁殖。研究了4种去除沼蛤的物理方法,其中离水干燥法和高温水浴法灭杀效率较高,而超声波和电流灭杀法具有较好的预防特性。
[Abstract]:The southern water conservancy projects in China are often damaged by the biodegradation of limnoperna fortunei.High density adherence to the structure surface will change the functional structure of buildings and affect the safe operation of water conservancy projects. Based on the study of the death characteristics of the clam under the action of water drying, high temperature water bath, ultrasonic wave and electric current, the feasibility of the engineering technology of removing the Marsh clam by physical method was discussed. The results showed that when the environmental temperature was 28 鈩，

本文编号：1882009