论文部分内容阅读
本文探索了用聚丙烯中空纤维膜式氧合器 (膜式人工肺 )排除水产养殖中的氨氮成分。在实验室中 ,使含氨氮的水样通过膜的一侧 ,氧气或空气在膜的另一侧带走解吸的氨氮。实验探讨了浓度、p H值、循环时间等因素对氨氮去除率的影响 ,并通过正交优化试验法寻找了实验室中除氨氮的最佳条件。结果表明 ,利用膜式氧合器可以排除水产养殖中的氨氮。在实验条件下养鱼水经膜式氧合器处理 80分钟后 ,氨氮去除率可达 1 9.3%。由于该法可在同一装置中 ,同时对养鱼水体进行排毒与增氧 ,因而具有较好的开发和应用前景。
This article explored the use of polypropylene hollow fiber membrane oxygenator (membrane-type artificial lung) to exclude ammonia nitrogen in aquaculture components. In the laboratory, a sample of ammonia-containing water is passed through one side of the membrane and oxygen or air is taken to desorbed ammonia on the other side of the membrane. The effects of concentration, p H value and cycle time on the removal rate of ammonia nitrogen were discussed in this paper. The optimal conditions of ammonia nitrogen removal in the laboratory were investigated by orthogonal test. The results show that the use of membrane oxygenator can eliminate ammonia nitrogen in aquaculture. Under the experimental conditions, the removal rate of ammonia nitrogen can reach 1 9.3% after the fish water is treated by membrane oxygenator for 80 minutes. As the method can be in the same device, at the same time detoxification and oxygenation of aquarium water, which has good prospects for the development and application.