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The hidden source of oxygen in water: How to save aquatic life through the gasification of water bodies?
In bodies of water, the storage of oxygen is a vital part of the natural cycle of life. However, with the increase of human activities, many waters are facing the crisis of insufficient oxygen, threatening the survival of aquatic life. Therefore, water gasification technology has become an effective means to solve this problem.
Relationship between water quality and gasification
The decrease in dissolved oxygen content in water (hypoxia or anaerobic state) directly affects the health of water quality. There are many reasons for this, including sewage discharge, agricultural runoff and overfishing. The combination of these factors has made the oxygen supply, which is crucial to the survival of aquatic life, become tight.
When the oxygen concentration in the water decreases, organisms in the water will not be able to survive, and it may even lead to large-scale fish deaths.
In order to solve this problem, gasification technology came into being. By injecting air into water, gasification technology can not only increase the oxygen content in the water, but also promote the circulation of water and improve the water quality.
Diversity of gasification methods
The gasification methods can be divided into surface gasification and bottom gasification. Each of these techniques has advantages and disadvantages under different environmental conditions.
Natural gasification
Natural gasification depends on the photosynthesis of aquatic plants. The oxygen released by aquatic plants in this process is an important source of support for aquatic life. When wind blows over the water or when water flows, oxygen is efficiently transported into the water.
Surface gasification technology
Various surface vaporization devices such as fountains and floating surface vaporizers use the contact between water flow and air to increase the oxygen content in water.
Fountains not only beautify water bodies, but also increase contact with air to a certain extent and promote oxygen exchange.
However, these devices have a limited range of oxygen supply and can usually only effectively treat the upper portion of the water column. In contrast, a paddle wheel vaporizer agitates the water more effectively, promoting more even oxygen distribution.
Bottom gasification technology
Bottom aeration increases oxygen concentration by injecting air bubbles directly into the water bottom and then allowing the bubbles to rise naturally. Its efficiency is often affected by the size of the bubbles. Although large bubbles can stir the water flow, the oxygen transfer efficiency is not as good as small bubbles.
Fine bubble aeration systems have received much attention for their ability to effectively increase oxygen transfer efficiency, although they do not stir the water flow as well as other technologies.
Practice of large-scale gasification projects
In several regions, a series of large-scale gasification projects have been launched to solve the problem of gasifying water bodies. For example, in London’s River Thames, specialized oxygen-driven boats are used to replenish oxygen in the water during heavy rains to combat low oxygen levels caused by sewage inflow.
Future Challenges and Thoughts
As global water resources become increasingly scarce, the management of oxygen in water will become increasingly important. Faced with increasingly complex water quality issues, technological innovation will be at the core of future solutions. Different gasification technologies have different applicability and effects in specific water environments, which makes ecological environment management increasingly complex.
In the future, we need to explore and implement more efficient water gasification technologies to ensure the sustainable development of aquatic life.
With so many deep-water creatures, can these gasification technologies successfully save their future?
