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Latest filtration technology developments for pre-smolt salmon farming Çağdaş Güven Işık, MAT Filtration Technologies
RAS in 2021 Recirculating Aquaculture Systems (RAS) technological advances for either fresh or seawater will secure the sustainable intensive aquaculture process of the 21st century. Environmentally cautious, innovative RAS installations are the future of a healthy and high nutritional value protein production food, supporting consumers’ requirements by providing sustainable solutions for food safety and food security for the human population in any part of the planet. A RAS should be designed and installed based on farmers’ biological production process requests, taking into consideration many aspects, more importantly, the animals’ welfare and succeeding a stable production via simple operational procedures. Fully integrated plug-and-play and tested RAS filtration technology is the key to any sustainable aquaculture production. Nowadays, advanced RAS in land-based farms support the mechanical, biological, chemical and disinfection filtration processes with low energy consumption and ease of operation. The importance of RAS is that it can secure the below important aspects to stable and secure farming: • Optimized TAN removal rate. • Excess protein removal by centrifugal fractionation supported by an automatic protein foam leveling. • Biological support by trickle filtering and bioreactors. • Disinfection solutions by ozone infusion and ultraviolet radiation. • Automation systems allowing real-time water quality monitoring and remote operations to all aspects of the RAS. • Resistant and robust fabrication materials allowing a long life cycle.
Hatchery Feed & Management Vol 9 Issue 1 2021
Figure 1. Freshwater protein skimmer.
Freshwater species land-based aquaculture We are now in the epicenter of RAS technology for freshwater species equipment design making it possible to achieve sustainable inland fish farming. Our equipment design logic principle is based on compact, lowest possible footprint needed per filtration capacity while keeping initial investment cost at the lowest level. We aim in supporting fish farms that need to control incoming water, recirculation/close loop circuit and the discharged water. Our biologists and RAS engineers started working on fish farm filtration equipment about a decade ago. Since then, many technological improvements, as well as large-scale
