Introduction to Knowledge About Waterwheel Oxygenators

Release time:

2022-09-05

The construction of “sponge cities” is often seen as an upgraded version of “water management.” Local renovations and upgrades—ranging from flood prevention and drainage to soil and water conservation, underground pipe networks, urban landscaping, and the upgrading and reconstruction of wastewater treatment plants—serve to integrate and comprehensively reorganize the city’s water systems, much like a full-scale facial makeover. This includes aquaculture equipment such as water wheels and oxygenators.

　　The construction of “sponge cities” is often seen as an upgraded version of “water management.” Local renovations and upgrades—ranging from flood prevention and drainage to soil and water conservation, underground pipe networks, urban landscaping, and the upgrading and reconstruction of wastewater treatment plants—serve to integrate and comprehensively reorganize the city’s water systems, much like a full-scale cosmetic makeover. This includes aquaculture equipment. Waterwheel aerator 。

　　Oxygen from the air is forcibly transferred into the liquid through aeration or mechanical agitation, dissolving oxygen into the water and simultaneously ensuring thorough mixing. This process is known as aeration. In general, aeration equipment is an indispensable component of aerobic biochemical treatment systems for wastewater, and it also plays a significant role in maintaining water quality in bodies of water such as lakes and ponds.

　　With the development of intensive fish farming and intensive fish ponds, Waterwheel aerator Its use is becoming increasingly widespread. The aerator has three functions: aeration, water mixing, and oxygenation.

　　I. Common Types of Aeration Equipment

　　1. Impeller aerator: Suitable for oxygenating ponds with a water depth of over 1 meter and large surface areas.

　　2. Waterwheel aerator: Suitable for ponds with relatively deep sediment and an area ranging from 1,000 to 2,540 square meters.

　　3. Jet-type aerator: Its oxygenation efficiency surpasses that of paddle-wheel aerators and air-injection spray devices. The aerator features a simple structure, can create water flow and stir the water body, thereby evenly distributing oxygen throughout the water without harming fish. It is particularly suitable for use in fry ponds.

　　4. Water-spraying oxygenator: This device can rapidly increase the dissolved oxygen content in surface water within a short period of time and also offers aesthetic appeal, making it ideal for fish ponds in gardens or tourist areas.

　　5. Inflatable aerator. The deeper the water, the better the effect. Suitable for deep-water aquaculture.

　　6. Oxygen pump: Due to its lightweight design, ease of operation, and single-function oxygenation capability, this pump is suitable for fry-rearing ponds or greenhouse aquaculture ponds with a water depth of 0.7 meters and an area of less than 440 square meters. Once the fish enter the fasting period, the feeder should be disabled. The feeder manufacturer recommends thoroughly cleaning the feeders, disconnecting the power supply, and prohibiting outdoor storage near the pond’s edge. Protective measures should be taken to cover them or move them into a warehouse for storage.

Related News

The working principle and advantages of an oxygenator

Introduction: This article introduces the working principle and advantages of aerators and recommends several reliable aerator suppliers. If you’re looking for an aerator, this article will provide you with useful information.

2023-06-22

How to Choose an Aerator That’s Right for You

How to Choose an Aerator That’s Right for You

How should aquaculture farmers choose an aeration machine that’s right for them? This article will analyze factors such as pond size, power and stability, brand reputation, and expert advice. By reading this article, you’ll gain a better understanding of how to select the aeration machine that best suits your needs.

2023-06-07

Vietnam Aquaculture and Fisheries Exhibition: Vietnam Television Features Wangfa Oxygen Generators

Mobile phone monitoring and fully automated aquaculture—do these “modern-day fishermen” overturn your previous impression of them? As aquaculture becomes increasingly intelligent, can it deliver healthier food to consumers?...

2020-11-12

The 25th China International Fisheries Expo will be postponed to October 27–29, 2021. The 25th China International Fisheries Expo will be postponed to October 27–29, 2021.

The China International Fisheries Expo is one of the world’s largest and most influential international trade fairs in the global aquaculture industry, having served the global aquaculture sector for 25 years. Since its inception in 1996, the expo has effectively integrated diverse, global, end-to-end industry resources—from aquatic product trading and related technologies and processing to cold-chain logistics, food and ingredients, catering and hospitality, as well as consulting and investment—into the Chinese market.

2020-11-12

The relationship between water convection and dissolved oxygen levels in aquatic bodies: The introduction of an aeration device can effectively regulate dissolved oxygen levels.

Although fish floating to the surface can be caused by a variety of factors, in addition to excessive stocking density, overloading the total fish biomass, and poor water quality, the convective properties of water are also a major factor that cannot be overlooked. Simply put, when water temperature is low, its specific gravity (or density) increases, causing it to sink; conversely, when water temperature is high, its specific gravity (or density) decreases, making it float upward. Understanding and mastering the principles of water convection will greatly facilitate the smooth operation of aquaculture. On warm days, after being heated by the sun during the day, the warmer, lighter water tends to stay on top. As the sun sets and the air temperature begins to drop, the upper layer of water cools down, increasing its density, and gradually starts to sink. If the nighttime temperature remains relatively high, the water cools down slowly, and the upper layer won't reach the bottom of the pond until early morning. This is one of the main reasons why oxygen levels tend to drop sharply from late night into early morning on hot days. However, if a heavy rainstorm occurs in the evening, the situation changes dramatically. The cold, heavy rainwater quickly sinks to the bottom of the pond, stirring up sediment, leftover feed, fecal waste, biological residues, and other organic matter from the pond bottom and bringing them into the middle and upper layers of the water. These harmful organic substances rapidly deplete the dissolved oxygen in the water. Before dawn even breaks, the dissolved oxygen in the water may be completely used up, leaving the fish vulnerable to oxygen depletion and causing them to float to the surface—a phenomenon known as "floating and surfacing." Therefore, sudden heavy rainfall in the evening or at night can also lead to oxygen depletion and fish floating to the surface.

2020-11-12

How to choose an aerator?

Oxygenators are used to increase the oxygen content of water bodies. There are many types of oxygenators available, including impeller-type, paddle-wheel type, aeration-type, air-injection type, spray-type, and jet-type oxygenators. Oxygenation helps save fish and ensures high yields. According to measurements, each ten-million-unit impeller-type oxygenator can add more than 1.8 kilograms of oxygen to the water per hour—enough to meet the respiratory needs of several tons of fish for an entire hour—and can promptly address oxygen deficiency in pond fish. After using oxygenators, the production conditions of fish ponds have shifted from natural ecosystems to artificially controlled ecosystems, thereby breaking through the limitations on fish yield imposed by still-water ponds under natural conditions.

2020-11-12