Author:
Bracino Amir A.,Española Jason L.,Bandala Argel A.,Dadios Elmer P.,Sybingco Edwin,Vicerra Ryan Rhay P., ,
Abstract
Unlike a media-filled aquaponic system, the nutrient film technique (NFT) and deep water culture (DWC) require the installation of an external biofilter to provide sufficient area for nitrifying bacteria colonization, which is essential for the conversion of toxic ammonia from fish waste into nitrate that is easily assimilated by plants. Given the importance of biofilters, it is imperative to properly design this tank to effectively support the nitrification process. Several factors need to be considered for the biofilter design. Thus, an optimization algorithm can be used to obtain combinations of the design parameters. The genetic algorithm (GA) is a heuristic solution search or optimization technique based on the Darwinian principle of genetic selection. The main goal of this study was to obtain the optimal biofilter size for a given fishpond volume and the amount of ammonia to be treated. The conversion coefficient in the Michaelis–Menten equation was used as the fitness function in this study. The parameters optimized using GA include the hydraulic loading rate, height of the biofilter, and predicted ammonia concentration. For the given assumption of a 60 kg feed introduced to the system and a 1500 L fishpond, the hydraulic loading rate, biofilter height, and final concentration of ammonia were 0.17437 m, 0.58585 m, and 0.01026 ppm, respectively. Using the values obtained from running the GA, the optimum biofilter volume for the system was 0.4608 m3, whereas the water flow rate was 0.03 L/min. For recommendations, multiple objective GAs can be used to add cost-related variables in the optimization because they have not yet been considered in the computation.
Publisher
Fuji Technology Press Ltd.
Subject
Artificial Intelligence,Computer Vision and Pattern Recognition,Human-Computer Interaction
Reference27 articles.
1. S. Wongkiew et al., “Fate of nitrogen in floating-raft aquaponic systems using natural abundance nitrogen isotopic compositions,” Int. Biodeterior. Biodegrad, Vol.125, pp. 24-32, doi: 10.1016/j.ibiod.2017.08.006, 2017.
2. B. Yep and Y. Zheng, “Aquaponic trends and challenges – A review,” J. Clean. Prod, Vol.228, pp. 1586-1599, doi: 10.1016/j.jclepro.2019.04.290, 2019.
3. K. Connolly and T. Trebic, “Optimization of a Backyard Aquaponic Food Production System,” Bioresource Engineering Design Reports, 74pp., 2010.
4. A. A. Bracino et al., “Biofiltration for Recirculating Aquaponic Systems: A Review,” IEEE 12th Int. Conf. on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment and Management (HNICEM), doi: 10.1109/HNICEM51456.2020.9400136, 2020.
5. B. R. L. Nelson, “Aquaponic Equipment, The Bio Filter,” Aquaponics J., Issue 48, pp. 22-23, 2008.
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献