INNOVATIVE SOLUTIONS FOR REMOVING NITROGEN COMPOUNDS FROM WATER OF RECIRCULATING AQUACULTURE SYSTEMS USING CLINOPTILOLITE NATURAL ZEOLITES
Journal Title: Current Trends in Natural Sciences - Year 2017, Vol 6, Issue 11
Abstract
From the constructive and functional point of view, a controlled aquaculture system can be assimilated with a classical water treatment system, functionally customized to the requirements of technology for intensive fish in confined spaces. A physicochemical process cheap, fast, secure which has the potential to replace the widespread technique of biologically removal of nitrogen compounds is based on the separation of nitrogen compounds from the water using zeolite. By using clinoptilolite, a zeolite with high affinity for nitrogen compounds, it was maintained in normal range the ammonia, nitrite and nitrate in a fish pound. The water recirculated in the controlled system was mechanically filtered and passed through the zeolite column. Clinoptilolite zeolite is an aluminosilicate from the microporous family solids which act as molecular sieve. The experiments were performed in the Laboratory of Fisheries and Aquaculture, Faculty of Animal Science, University of Agronomic Science and Veterinary Medicine of Bucharest. Advantages of this approach include: low dependence on temperature and absence of dependence on chemical toxins and bacterial predators, do not require a start-up period, the system can be turned off or on at will, fish is grown in much lower bacterial concentrations, reducing the possibility of disease or flavour loss.
Authors and Affiliations
Carmen Georgeta Nicolae, Steluta Camelia Sava, Monica Paula Marin, Elena Pogurschi, Bogdan
Keywords
Related Articles
- EP ID EP25112
- DOI -
- Views 313
- Downloads 11
MORPHOMETRIC AND MORPHOLOGIC CHARACTERISTICS OF DOAMNEI RIVER MOUNTAIN BASIN (FĂGĂRAŞ MOUNTAINS)
This paper presents a detailed morphometric and morphographic analysis of Doamnei River mountain basin (Făgăraş Mountains), based on digital morphometric maps, field observations and surveys. The mountain basin of Doamn...
EVALUATION OF ADDITION OF WHITE WORM (ENCHYTRAEUS ALBIDUS HENLE, 1837) TO DIETS ON QUALITY OF BROWN TROUT (SALMO TRUTTA FARIO)
This paper evaluated usage possibility of white worm added to brown trout pellets at different percentages. The experiment was designed as 4 groups (Live feed, Pellet, and additions of (0.25 and 0.5%) white worm with 3...
ORNITHOLOGICAL RESEARCHES ON THE PITEŞTI BASIN DURING 2003 – 2011
In this paper the authors show some ecological researches about the ornithofauna registered on the Piteşti Basin (part of the Argeş River Basins, site included in the Nature 2000 network) performed during 2003 – 2011. 1...
USING THE „MOUNTAIN” METAPHOR TO INCREASE SELF-EFFICACY
A new growing body of studies have suggested that therapists and counsellors should consider nature involvement and nature connectedness when assessing clients and planning therapy strategies. Strategies and techniques...
RESEARCH REGARDING INTEGRATED DISEASES AND PESTS CONTROL IN APPLE TREE CULTIVATION IN THE CÂRCINOV-ARGES FRUIT GROWING BASIN
In tree culture technologies, regardless the species and varieties in culture, cessation and control of disease and pest attack represent important and necessary sequence, which influence the quantity and mainly the qua...