China Drying Network News: Qingdao, Shandong Province has suffered large-scale landings of Brassica moss for six consecutive years. The most recent invasion of Enteromorpha has been the largest since this year. For the management of Brassica oleracea, the trend of “changing harm into treasure†is an effective response method that Qingdao City has actively explored in recent years. At present, in Qingdao, the production of seaweed fertilizer, biodiesel, and other chemical products from canola has achieved initial success.
During the growth process of Enteromorpha, it will absorb a large amount of oxygen, threaten the survival of other marine animals and plants, destroy the ecological environment, and bring great inconvenience to people swimming in the sea. This year in the offshore of Qingdao, Enteromorpha reappears again and the blue seawater turns into a green “grassland†again. To this end, Qingdao Municipality organized salvage and cleanup of humans according to the “Quality Plan for Ocean Algae Disaster Emergency Treatment in Qingdaoâ€. It is worth noting that some research institutions and companies have begun to explore the re-use of Brassica resources. In this year's Enteromorpha treatment, the use of advanced technology to “eat dry squeezed†seaweed to produce chemical products has become a major highlight of Qingdao’s “offensive in offshore watersâ€.
According to statistics from Qingdao Ocean and Fisheries Bureau, at present, the city has accumulated more than 60,000 tons of salivation and cleaning up. It is understood that after these dehydrated treatments, all of them are transported to the processing plant of China Ocean University Bioengineering Development Co., Ltd. located in Jiaozhou City for resource utilization and harmless treatment. The resource utilization rate of the landfilled Brassica enterica also reaches More than 80%. In addition, Haida Bioengineering Co., Ltd. invested a total of 14 million yuan in the construction of Qingdao City Southern District harmless treatment base has passed the acceptance, which is Qingdao City, the first harmless base treatment of Brassica moss, can be used in the ocean Moss resources are nearly 100,000 tons.
The head of Haida Bioengineering Co., Ltd., responsible for the post-processing of Enteromorpha, said that the company successfully developed a series of Enteromorpha algae fertilisers for the large quantities of Brassica moss. The current products have been sold to more than 20 domestic provinces, and are exported to Italy and the Netherlands in batches. More than 30 countries and regions. It is understood that Haida Bioengineering Company has already developed dozens of varieties such as powdered manilla powder, canola leaf fertilizer and canola grain fertilizer. The organic content of fertilizers can reach over 50%, and the roots of trees after use are developed. Branches are robust, drought-resistant, aphid-resistant, and disease-resistant. Haida Biosciences is now working with other research institutes to develop feeds and food additives using Brassica.
Prof. Tian Yuanyu from the Clean Energy Research Center of the School of Chemical and Environmental Engineering, Shandong University of Science and Technology, carried out research on the refining of Chinese kestrel into bio-crude oil, and developed a technology for the continuous and rapid hydrothermal liquefaction of high-water-containing biomass with pretreatment to obtain liquid fuel. Tian Yuanyu explained that Brassica mosellata is a kind of high-water-containing plant that can be used as a new biorefinery raw material. The process of bio-crude oil production from Brassica oleracea is actually mimicking the process of petroleum formation, converting the fiber components of Enteromorpha into Bio-crude oil.
“After exploratory experiments, the rapid and hydrothermal liquefaction of enteromorpha high-water biomass with pretreated hydrothermal liquefaction produces liquid fuel technology with high thermal efficiency, low investment, and easy operation. Experimental results show that at 220–270°C, 1 ton of dry The Brassica can extract 300-350 kilograms of bio-crude oil, 400 kilograms of wood vinegar and 150 kilograms of semi-coke, etc. Bio-crude oil can be separated and refined to produce gasoline and diesel suitable for automobile use. Wood vinegar can be used in agriculture. Foliar fertilizer, or as a fertilizer improver, can also be used to produce snow melting agent; while semi-coke can be made into activated carbon. This high-water-containing biomass liquid fuel technology is applicable to all light and seawater microalgae.†Professor Tian Yuanyu Told reporters.
In addition, a scientific and technological company in Laoshan District, Qingdao, has treated the canola and other algae together and processed it into a degerming solution, which not only has bactericidal activity, but also does not require the addition of preservatives.
Relevant experts pointed out that to eradicate the seaweed that ravages the sea every year requires the cooperation of various regions, industries, and departments. On the one hand, we must increase the technical level of salvaging and comprehensive utilization; on the other hand, we must also prevent and control marine pollution and reduce seawater. Emissions of pollutants.
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