Construction and Purification Effect of Pond Recirculating Aquaculture System: Research Progress

doi:10.11924/j.issn.1000-6850.casb17060016

Abstract

Abstract: The traditional aquaculture pattern can easily cause water pollution and waste of water resources. In order to reach the goal of healthy aquaculture, pond recirculating aquaculture system (PRAS) takes measures to purify water by using power flow purification and bioremediation techniques under the guidance of circular economy, such as establishing artificial wetland to form a sustainable development model. In this study, we summarized the construction of the three main models of PRAS and their effects on water purification, and analyzed the main problems in the operation of the system. The existing studies showed that the average removal rates of TN, TP, NH4+-N, CODMn, and NO2--N were basically maintained at 60%. Besides, we analyzed the factors such as the ratio of purification area to pond area as well as the effects of the substrate, plant, pH and temperature in the purification unit. This study can provide a reference for further in-depth research on PRAS.

CLC Number:

S964.3

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