China 500g Ozone Generator for Ras Fish Shrimp Farm Aquaculture System Water Treatment

Product details

product modelozone productionpower ratingcooling water flowdimensionpowerYT-021-500A500g/h5kw1.5-2.0m3/h80*70*153cm220v/50hz

Product ApplicationsOzone Aquaculture Applications :
Fish farming involves culturing of fish commercially in tanks or enclosures, usually for food. Fish hatcheries and fish farms play an ever increasing role in supplying the world's demand for fish. To effectively supply this demand, fish farms must practice intensive farming techniques where more and more fish are farmed in the same or smaller tank volumes. Of couurse, as the fish density grows so does the risk of infection by water-borne bacteria and viruses.
Because of these problems, some aquaculture operators frequently use strong antibiotic drugs to keep the fish alive (but many fish still die prematurely at rate of up to 30 percent). In some cases, these drugs have entered the environment. Additionally, the residual presence of these operations still use antibiotics, many of which considered to be serious problem to human health as well as for fish farming.
Ozone is the ideal disinfectant for aquaculture because of its ability to kill bacteria and viruses without leaving any residue. Ozone is an effective treatment that:
Removal of fine and colloidal solids
Fine and colloidal solids consist of particles 1-30 microns (m m) and 0.001-1 m m respectively. The small size of the particles enables the solids to remain in suspension and avoid most mechanical methods of separation. The accumulation of fine and colloidal solids can impair biofilter nitrification efficiencies and stress fish stocks.
Ozone removes fine and colloidal solids by causing clumping of the solids (microflocculation), which facilitates removal by foam-fractionation, filtration and sedimentation.
Removal of dissolved organic compounds
Dissolved organic compounds (DOC's) or refractory organics, give the water a characteristic tea-coloured stain. DOC's are non-biodegradable and accumulate according to feed input, water exchange rate and the rate of solids removal. High levels of DOC's can stress fish and reduce nitrification efficiencies of the biofilter.
Ozone removes dissolved organics by:
oxidation into products that are more readily nitrified in the biofilter;
including precipitation, which enables removal of waste particles by conventional filtration or sedimentation.
Removal of Nitrite
Nitrite can accumulate as production intensifies and organic loadings on the biofilter increase. Bacteria that process ammonia into nitrite (Nitrosomonas spp) operates more efficiently under high organic loadings than bacteria that process nitrite to nitrate (Nitrobacter) and levels of nitrite rise accordingly.
High levels of nitrite can be toxic to fish. Data available for silver perch, Bidyanus bidyanus indicates levels of nitrite as low as 2.8 parts per million (ppm) can reduce growth of fingerlings by 5%.
Ozone removes nitrite by:
direct oxidation to nitrate;
reducing organic loading, which improves biofiltration efficiency and nitrification.
Disinfection
The high stocking densities, associated fish stress and increased nutrient loads found in RAS create an ideal environment for fish pathogens. An important step in reducing the risk of disease outbreaks in RAS is the use of standard quarantine procedures for any fish introduced. Facilities using surface waters, including RAS and flow-through hatchery systems, are also interested in reducing the pathogen load introduced via the source water. The disinfection of effluent waters before introduction to the environment is also crucial to prevent the translocation of exotic diseases.
Ozone can effectively inactivate a range of bacterial, viral, fungal and protozoan fish pathogens. The effectiveness of ozone treatment depends on ozone concentration, length of ozone exposure (contact time), pathogen loads and levels of organic matter. If high levels of organic matter are present, the demand created by oxidising the organic matter can make it difficult to maintain enough residual ozone for effective disinfection.
Our company
Guangzhou jiahuan appliance technology co., ltd established in 2007, with over 150 employees , covering more than 10000m2 , professional making ozone generator and PSA oxygen generator for water treatment and air purification .
Our services
1. pre-sale services: communicate with customers timely
2. product services: provide high-quality product for you
3. All -in -one services: instruct the custormer how to use product
4. After sales services: 24 hour online