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Small diatoms lead the three academicians, the world leader in diatom breeding technology in Shenzhen

author:管理员 Publication time:2018-08-14 09:19:25 Read: 2465 second

On August 11, diatoms with a size of only 0.6 to 10 microns attracted Liu Yanhua, the State Council's Counselor, former deputy minister of the Ministry of Science and Technology and senior consultant of the International Green Economy Association, to come to Shenzhen for a special investigation. Liu Yanhua and his team's goal is to settle in the “Diaga Biotechnology Innovation” project of Shenzhen International Bio-Valley Marine Bio-Industrial Park in Dapeng New District. The project has gathered Wang Zhaokai, academician of the National Academy of Engineering, academician of Chinese Academy of Engineering, and academician of International Eurasian Academy of Sciences Wang Yuhua. The 3 academicians of the Chinese Academy of Engineering and the polymer chemistry expert Wang Fosong developed a unique large-scale open culture diatom technology in China and obtained a number of national patents, making the world leading diatom breeding technology in Shenzhen.


Diatom "is a treasure"

If you use "small big energy" to describe diatoms, then it is appropriate. Diatoms are one of the most abundant algae in the world, accounting for more than 60% of the total phytoplankton, while 70% of the world's oxygen is released by phytoplankton. Coupled with their variety, large quantity, and extremely wide distribution, as long as there is water, they can be found, so diatom is also known as the "grassland" in the ocean.


What else can diatoms do besides making oxygen? According to reports, diatoms can extract the sugar, protein and starch sugar. Researchers say that the diatoms are rich in nutrients and are the main food for small shrimps. These nutrients can also be used as health foods for the elderly, infants, and frail people, as in the case of deep-sea fish oil. The main component of the reticulated diatom shell is silica (the purity of silica is over 98%). It has high strength, good toughness, heat resistance and sound insulation. It is resistant to strong acid except hydrofluoric acid. It is unique in nature. Micro-nano bio-inorganic materials.

According to researchers, diatom shell materials have larger specific surface area, stronger surface adsorption, higher surface energy, better dispersion performance, and better insulation and sound insulation than ordinary nano-scale silica materials. After large-scale cultivation and processing, the production cost of diatom-shell micro-nanostructured silica is lower. At present, diatom shell materials have been widely used in new materials and pharmaceuticals, cosmetics, textiles, agricultural products and food.

A "football field" can produce 120 tons of dry algae a year.
It is understood that the International Green Economy Association is a professional social organization that promotes sustainable development and green economy. It focuses on exploring green development and innovative technology and innovation models, and then promotes the industrialization of green technologies and models to create green economy best practices. The purpose of Liu Yanhua's research and investigation was officially to study the technological innovation and industrialization route of "diatom biomaterials".

Shenzhen Zhaokai Bioengineering R&D Center Co., Ltd., a subsidiary of Teli Energy, was founded in December 2008 by Academician Wang Zhaokai and is also the first academician team to settle in the Marine Biological Industry Park. Wang Zhaokai is an internationally renowned aquaculture engineering expert. In 1995, he was elected as an academician of the National Academy of Engineering. He developed the open culture technology of diatom colleges based on the characteristics of wide distribution, rapid growth and strong competitive advantage of diatoms. A complete process of diatom culture, diatom harvesting and comprehensive utilization of diatoms.


Diatom culture has a very significant by-product that is capable of absorbing carbon dioxide. Researchers said that the production of 1 ton of diatom requires the absorption of 1.6 tons of carbon dioxide, which can effectively improve the ecological environment during the process of large-scale cultivation of diatoms.
Diatom is a kind of phytoplankton. It may also be plagued by pests and diseases during the breeding process. Wang Zhaokai's technology can help diatoms effectively avoid the harm of algae and groundwater animals. Without "natural enemies", diatoms Stable growth, with an annual output of 120 tons of dry algae per hectare (about one football field size). This "high-yield" technology not only dominates domestic gimmicks, but is also the world leader.
With a stable source of diatoms, the company has also collaborated with universities and research institutes such as Beijing, Wuhan, and Guangzhou to conduct comprehensive application research on diatom-type micro-nanostructured silica, such as using this material to make composite materials and absorbing seawater. Lithium ions in the field prevent the attachment of marine organisms and improve the recovery of oil and gas fields.

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