Study On The Water Cycle Use In The Scale Aquaculture Farm

Whether at home or in the world, China’s freshwater aquaculture has an important position. And aquaculture is an important component of China’s agriculture. With the development of fishery production and the growing needs of the community, modern farmings become more and more intensive for the pursuit of high-yield aquaculture. So high-density culture and extensive use of feed resulted in serious eutrophication of aquaculture water, which led to the deterioration of the surrounding aquatic environment.In today’s focus on sustainable use of water resources, people gradually begin to realize that scale aquaculture water recycling plays an important role in improving utilization of water resources and improving the aquatic environment.In this paper, from the trends of the development of aquaculture, I analyzed of the characteristics of aquaculture water cycle system and used constructed wetland in wastewater treatment of the aquaculture. On the basis of full analysis of pollution load of the farm, I will design the artificial wetland and water supply network with the water recycling system, so as to built the basic model of aquaculture water reuse system and analyze the effect of removal of pollutants which is purified by the constructed wetland.The results obtained through analysis of:1) Introducing artificial wetland to the scale aquaculture water recycling system, wetland system of the scale aquaculture operation results are obvious. After aquaculture wastewater purified by the wetland system, the water can meet the requirements of aquaculture water quality, and it can achieve the standard recycling, so as to save water and the rational allocation of water resources provide favorable conditions.2) Through the farm system designing and optimization of the network analysis and calculation, comprehensive comparison of the investment budget results that optimization of the network can play the purpose of reducing the total investment. And for the construction of pipe network system provides a reference.