Version 1
: Received: 8 December 2023 / Approved: 8 December 2023 / Online: 8 December 2023 (15:46:18 CET)
How to cite:
He, K.; Tong, C.; He, L. H.; Liu, H. Y.; Hu, H. Y. Design and Testing of a New Type of Push-Water Aerator Device for Integrated Pond Aquaculture Systems. Preprints2023, 2023120639. https://doi.org/10.20944/preprints202312.0639.v1
He, K.; Tong, C.; He, L. H.; Liu, H. Y.; Hu, H. Y. Design and Testing of a New Type of Push-Water Aerator Device for Integrated Pond Aquaculture Systems. Preprints 2023, 2023120639. https://doi.org/10.20944/preprints202312.0639.v1
He, K.; Tong, C.; He, L. H.; Liu, H. Y.; Hu, H. Y. Design and Testing of a New Type of Push-Water Aerator Device for Integrated Pond Aquaculture Systems. Preprints2023, 2023120639. https://doi.org/10.20944/preprints202312.0639.v1
APA Style
He, K., Tong, C., He, L. H., Liu, H. Y., & Hu, H. Y. (2023). Design and Testing of a New Type of Push-Water Aerator Device for Integrated Pond Aquaculture Systems. Preprints. https://doi.org/10.20944/preprints202312.0639.v1
Chicago/Turabian Style
He, K., Hao yu Liu and Hao yu Hu. 2023 "Design and Testing of a New Type of Push-Water Aerator Device for Integrated Pond Aquaculture Systems" Preprints. https://doi.org/10.20944/preprints202312.0639.v1
Abstract
Over the last ten years, the integrated pond aquaculture (IPA) has been developing rapidly as a new aquaculture mode, and mechanical power oxygenator is a common oxygenation device in this aquaculture mode. However, with the gradual expansion of the application range of this aquaculture mode, the problems of low efficiency, poor oxygenation uniformity, and low applicability of mechanical power oxygenators, which can produce water reflux and suction pollution accumulation, have gradually emerged. Therefore, we designed a new type of push-water aerator device (NPWAD) applicable to the integrated recirculating water aquaculture mode of ponds. Mainly, the specific parameters of the key components were clarified through the selection calculation and structural design, and the experiments were carried out in the self-constructed pond integrated aquaculture system at the experimental base. The experiments were carried out on the water in the tank for grass carp culture, and the oxygenation and water pushing effects of the type of push-water aerator device under 15 groups of different operating parameters were carried out by using multiple types of high-precision water quality monitoring sensors, with the rotational speed of the device, the operating time (0-30 min) and the height of the water (0.5-1.5 m) as the independent variables, and the oxygenation amount R, the oxygenation power efficiency E_s and the surface layer of the water as the evaluation indexes, average flow velocity V_f were used as its evaluation indexes of oxygenation and water pushing. The results show that the optimal parameters of the NPWAD are impeller water lifting component speed n_1=1000r/min, small-hole aeration component speed n_2=2280r/min. At this time, the average oxygen increase of this device is R=1.96mg/L, the average oxygenation power efficiency is E_s=3.8 kg·(h·kW)-1, the DO uniformity of the water M_1=95.3%, and the average flow velocity V_f=190.8mm/s, which can effectively promote the water directional flow and achieve the water circulation and layer exchange, and it is in line with the preferred swimming speed of grass carp at various growth stages. The new type of push-water aerator device is able to enhance the DO concentration of the water faster, but also to achieve the purpose of promoting the directional flow of the water and renewing the water in the tank, as well as in a short period of time to improve the uniformity of the DO of the water faster, for the improvement of the pond aquaculture production efficiency has practical significance.
Keywords
Pond integrated; aerators; DO; push-water; test; power efficiency
Subject
Engineering, Other
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
