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Fish farm equipment manufacturer and supplier by Wolize: In the early 21st century, with the rapid development of materials science, new corrosion-resistant, high-strength, and relatively low-cost materials, such as PVC and PE, were widely used in aquaculture facilities and piping systems, greatly improving the durability and stability of these systems. Simultaneously, significant breakthroughs were made in water quality monitoring technology, with the emergence of various high-precision sensors capable of real-time and accurate monitoring of key parameters in aquaculture water, such as temperature, dissolved oxygen, pH, and ammonia nitrogen. Based on this monitoring data, automated control systems became more intelligent, automatically adjusting equipment operation according to changes in water quality, achieving precise control of the aquaculture environment. Furthermore, in the field of aquaculture nutrition and feed technology, in-depth research was conducted on the nutritional needs of different aquaculture species at different growth stages, leading to the development of more precise feed formulations, improving feed utilization, and reducing environmental pollution. During this period, land-based recirculating aquaculture systems (RAS) developed rapidly globally, with Asia, South America, and other regions beginning to vigorously promote and apply this aquaculture model, resulting in a qualitative leap in both scale and technological level.

In terms of durability and maintenance, galvanised metal frames offer excellent corrosion resistance and structural stability, well-suited to Central Asia’s environment characterised by significant diurnal temperature variations and arid conditions. The outer waterproof canvas, typically manufactured from polymer materials, provides outstanding impermeability and resistance to ageing, ensuring a long service life. This reduces frequent repair and equipment replacement costs associated with pond leakage or structural damage. From a long-term operational perspective, this pond model reduces overall costs while enhancing the reliability and continuity of the aquaculture system. Find extra details at fish farming supplies.

Ozone alone cannot maintain a stable RAS environment. Fish release ammonia continuously through their gills and metabolic waste, and even low concentration of ammonia impairs gill function, suppress appetite and inhibit growth. Due to this fact, biological filtration is the second key pillar of the dual-treatment approach. In the biofilter, Nitrosomonas, Nitrobacter and Nitrospira are specific nitrifying bacteria that will turn ammonia to nitrite and subsequently to nitrate via the nitrification process (Oshiki et al., 2022). This bio-chemical conversion is necessary in preserving a safe environment in high-density aquaculture plants. Due to ozone being sensitive to these bacteria, physical separation between ozone contact and biological filtration must be maintained during system design. In contemporary RAS, ozone is sprayed into a separate chamber where it combines with water then flows through a degassing unit that removes all the remaining ozone. This step is only done after which treated water can be admitted into the biological filtration process(Xiao et al., 2019).

The galvanized steel plate fish pond itself is the core advantage of technological empowerment. Compared with traditional earthen ponds, it demonstrates unparalleled competitiveness. Its high strength and corrosion resistance perfectly adapt to the harsh environment of high temperature and high salinity in Saudi Arabia, with an extremely long service life. The modular construction enables the farm to be quickly built and flexibly expanded, significantly shortening the investment return period. More importantly, it achieves complete control over the breeding environment. Through the recirculating water system, water temperature, water quality and dissolved oxygen levels can be precisely regulated, creating the best growth conditions for fish. This is the technical cornerstone for achieving the ultra-high breeding density of “80 kilograms of fish per cubic meter of water”. This model also saves over 90% of land and water resources, which is of immeasurable strategic value in the water-scarce Middle East region.

Intensive aquaculture delivers unique advantages that address West Africa’s specific constraints and opportunities. Its core strength lies in resource efficiency: it produces significantly higher yields per unit of water and land compared to traditional farming or wild fishing, a critical advantage in a region where arable land is limited but water resources are abundant – including massive reservoirs like Lake Volta, the world’s largest man-made lake by area. Species such as tilapia, catfish, and white-legged shrimp thrive in high-density conditions, making them ideal for intensive systems while requiring lower protein intake, reducing reliance on expensive fishmeal. Unlike seasonal wild fishing, intensive aquaculture enables year-round production with predictable yields, stabilizing food supplies and prices for consumers while providing consistent income for farmers. Discover more information at https://www.wolize.com/.

Shandong Wolize Biotechnology, with 15 years of experience, ISO/CE certifications and university partnerships, designs and delivers turnkey RAS, high-density flow-through and aquaponic systems. Our equipment operates in 47 countries, powering 22 large-scale projects over 3,000 m³ each. We offer design, installation, training and lifelong support, helping farmers triple yield, cut costs 30 % and meet ASC/BAP standards. The Recirculating Aquaculture System (RAS) is a modern aquaculture technology designed to provide a stable and suitable growth environment for aquatic organisms through efficient water treatment and resource recycling. This system is widely applied in various types of aquaculture, including fish, shrimp, and crab farming, and boasts significant environmental, economic, and production advantages.