Verification Experiments of Aerators in Aquacultural Ponds

Effects of Nano-Aerators on Microbial Communities and Functions in the Water, Sediment, and Shrimp Intestine in Litopenaeus vannamei Aquaculture Ponds

“…The use of aerators not only increases the dissolved oxygen content in the water, but also fully inhibits the growth of anaerobic bacteria, preventing the deterioration of the pool water and threatening the living environment of aquatic organisms [ 34 ]. Currently, most of the commonly used aerators have limitations, such as a high laying cost, a fixed aeration area, and high energy consumption [ 4 ]. In contrast, the micro- and nanobubbles released by the nano-oxygenator will not increase and do not appear to float, and the oxygen-increase efficiency is higher [ 35 ].…”

“…However, it must generally be fixed at one point in the pond, the aeration area is limited to a certain range, and the aeration effect is poor in larger aquaculture ponds [ 3 ]. Compared with other aerators, the advantage of the waterwheel aerator is that by turning the water body and pushing, making it flow, the water with high levels of dissolved oxygen is transported to the food court with water containing low-levels of dissolved oxygen, which greatly improves the feeding situation of the fish [ 4 ]. Studies have shown that it is more economical to use paddle wheel aerators in large ponds with volumes >5000 m 3 [ 5 ].…”