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Tiny Secrets of the Ocean: How Do Thousands of Algae Make up the Magical Diatomaceous Earth?
In our daily lives, the existence of diatomaceous earth is often ignored. This natural mineral, derived from microscopic algae, is actually an integral part of Earth’s ecosystem. Let’s take a closer look at how diatomaceous earth is formed, its uses, and consider how these microscopic creatures shape our world.
Chemical composition of diatomite
Diatomaceous earth, widely known as bentonite, is composed primarily of fossilized diatoms. These tiny, single-celled algae deposited over millions of years to form this natural substance. According to research, the chemical composition of diatomite is about 80-90% silica, 2-4% bauxite, and 0.5-2% iron oxide.
"The formation of diatomite requires delicate natural conditions, which affect its deposition and composition."
Formation process
The formation process of diatomaceous earth involves depositing the remains of dead diatoms, which are rich in silica. After deposition, its shell is gradually compacted together with other materials to achieve a stable structure. These tiny algae are able to absorb silica from the water as they grow, however, when they die, the shell is exposed to seawater and eventually becomes part of the buildup material.
Historical background and geographical distribution
Diatomaceous earth was first discovered in Germany in the 1830s, when farmer Peter Carsten discovered the substance while digging a well in the Haußelberg Mountains in North Germany. Since then, different types of diatomaceous earth have been discovered in several areas, including Jawornik in Poland, Altenschlirf in Germany, and Soos Nature Reserve in the Czech Republic.
"Before World War I, almost all diatomaceous earth production came from Germany."
Industrial use
With the development of the times, diatomite is widely used in various industrial fields. From filters to lightweight materials and even use in agricultural and household products, its uses are endless. Its unique structure gives it excellent performance in water filtration and liquid absorption.
Filter
Water filtration technology developed by Wilhelm Berkefeld takes advantage of the high porosity of diatomaceous earth. This natural material filters tiny particles from water and is suitable for a variety of uses including swimming pool water, drinking water and beer filtration.
Agriculture and Horticulture
In agriculture, diatomaceous earth is also used as an anti-caking agent for feed and a soil conditioner. It improves the soil's air permeability and water retention, making it an ideal material for growing potted plants and growing fruits.
Environmental protection and safety
Although diatomaceous earth is relatively safe, be aware that it contains crystalline silica that may cause health effects. A small amount of exposure will not cause serious harm to humans, but long-term exposure to high concentrations may cause lung disease.
The relationship between ecological impact and climate
Diatomaceous earth plays an important role in climate change. Some studies have pointed out that some dust from the northern Sahara is mainly caused by the erosion of diatomaceous earth. This dust will affect the atmospheric environment and climate.
"Understanding the distribution and composition of diatomite plays a vital role in climate research."
Conclusion
To sum up the above, diatomite is not only an important material in life, but also the cornerstone of many ecological and industrial processes. From the existence of microscopic life to changes in the macroscopic environment, diatomaceous earth demonstrates the incredible connections in nature. Finally, we can’t help but wonder: What future possibilities will these secrets of tiny lives affect?
