Foreign fish farming new technology

With the rapid development of modern science and technology and aquaculture, the scale of industrial fish farming has been expanding in various countries in recent years, and the new aquaculture technology has achieved remarkable results in improving fish production, reducing energy consumption and saving water resources. The lack of water for closed-cycle aquaculture technology designed to conserve water is a major problem facing the world today. Under such circumstances, developed countries basically do not develop water-rich fish farming industry but focus on development. Closed-cycle aquatic aquaculture equipment further improves water treatment technology to reduce daily water change. On the other hand, ship-type and offshore platform-type flow-through fish culture equipment that are produced on the sea will also have a certain degree of development in Western Europe and the Nordic countries. Oxygen-enhanced Oxygen Technology to Increase Unit Production In recent years, Denmark, Germany and some other countries have successfully designed and built aquaculture equipment that uses liquid oxygen to aquaculture ponds and biofilters to increase oxygen, which has greatly increased fish production per unit surface. . U.S. and Sweden and other countries have developed a pressure swing absorption system to produce oxygen, which can directly produce 85% to 95% of oxygen enrichment in fish farms, so that farms away from the city can also use pure oxygen aeration technology.
At present, scientists are making great efforts to study the best way to increase oxygen by pure oxygen, so as to make this technology popular rapidly. Treatment of Polluted Water Treatment Technologies Freshwater fish wastewater treatment is an important issue in the development of industrial fish farming technology. German scientists designed a biofilter in the middle of the aquarium, which not only has a thermal insulation effect but also reduces energy consumption. It has a high practical value and is valued by various countries. The combined design of this fish pond and the filter tank will have New development. At the same time, developed countries with advanced industrial fish culture technology will also develop new types of fish farming wastewater treatment equipment with small size, low cost, and strong sewage treatment capacity according to the characteristics of their respective water treatment technologies. Low-cost heat pump temperature control technology is one of the most important aspects of industrialized fish farming; the cost of heating is a considerable figure when the daily water exchange rate is 8% to 10%. Heat pump is. A new type of energy-saving temperature control device can save about 50% energy than conventional temperature control devices.
Japan and the United States first used it for fish farming in the 1980s. With the new century, heat pump manufacturing technology will become more and more advanced, and costs will gradually decline. Increasingly advanced aquaculture monitoring technology is currently used in more advanced industrial aquaculture equipment using computer-controlled sensing devices to collect and analyze data on water quality, such as oxygen content, pH, water temperature, water level and circulation, and is equipped with appropriate alarms. And emergency system. Some farms also use television cameras to scan the surface of the water to get food intake, or use computers to arrange the best amount of feed to obtain the best conversion rate. In addition, breakthroughs will also be made in the rapid determination of important water quality data, such as ammonia nitrogen content and nitrite content, in order to monitor water quality more effectively and make industrialized fish farming more reliable and stable.

Electric Wheelchair

Electric Wheelchair is an important Household Medical Equipment for the wounded, sick and disabled at home for rehabilitation, turnaround transportation, medical treatment, and outings. The Wheelchair not only meets the needs of the physically disabled and the disabled, but more importantly, it is convenient for family members to move and take care of them. Patients, so that patients with the help of wheelchairs for physical exercise and participation in social activities.

Manual Hospital Wheelchair are generally composed of a foldable frame, front and rear wheels, left and right knee pads and footrests, left and right detachable armrests, handle brakes, seats, backrests with medical imaging data bags, bedpans, urine bag hooks, and electric standing. The hand-crank wheelchair adds a hand-crank device on the basis of the ordinary wheelchair. On the basis of ordinary wheelchairs, the electric wheelchair adds an electronic power assist system, which reduces the physical exertion of the user. Based on the electric wheelchair, the intelligent wheelchair adds positioning movement, standing movement, remote control movement and related Internet + assisted living.

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