Influence of temperature, ammonia load and hydraulic loading on the performance of nitrifying trickling filters for recirculating aquaculture systems
| Autor: | Guillem Estruch, Ana Tomás-Vidal, Miguel Jover-Cerdá, Silvia Martínez-Llorens, Sergio Godoy-Olmos, Raquel Monge-Ortiz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Trickling filter
Design elements and principles 02 engineering and technology 010501 environmental sciences PRODUCCION ANIMAL 01 natural sciences Ammonia nitrogen Ammonia chemistry.chemical_compound Aquaculture Nitrification kinetics Chemical Engineering (miscellaneous) Waste Management and Disposal 0105 earth and related environmental sciences business.industry Process Chemistry and Technology 021001 nanoscience & nanotechnology Pulp and paper industry Pollution Trickling filters chemistry Biofilter Environmental science Nitrification Recirculating aquaculture 0210 nano-technology Eutrophication business |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | [EN] In recirculating aquaculture systems, performance of nitrifying biofilters for total ammonia nitrogen (TAN) removal from the culture water and thus minimizing eutrophication depends on numerous elements of design. In this article the combined effect of three of these process parameters (temperature, hydraulic loading and TAN load) is evaluated. Ammonia removal rates (N-TAN divided by biofiltration area and day) were measured for every combination of five different temperatures, three different hydraulic loadings and three different ammonia loads. Every one of the process parameters were influential on nitrification rates and the lowest process parameters values corresponded with significantly lower N-TAN removal rates. A significantly higher mean N-TAN removal rate (0.241 gN-TAN removed m¿2 day-1) was found for the combination of the highest water temperature (27¿°C), the highest hydraulic loading (11 m3¿m¿2¿h-1) and the highest TAN load (9 gTAN m-3 day-1), suggesting a positive synergy of the three process parameters on the achievement of greater biofilter performances. This research work was made possible by the funding of the national project "Design of a recirculating aquaculture system for aquaculture plants (2011-2014)" by Ministry of Science and Innovation, Spain. |
| Databáze: | OpenAIRE |
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