The project is based on the use of cheap straw cellulose biomass and biohydrogen residue as the raw material for the preparation of bioflocculants. A two-stage fermentation method was designed to determine the industrial process flow and the optimum fermentation parameters. Through the effective screening and compounding scheme of the bacteria-producing bacteria, a complex and efficient flocculant group F2 and F6 were constructed. At the same time, the optimal fermentation process conditions for the preparation of composite bioflocculants were determined, laying a solid foundation for the industrial production of bioflocculants. On June 21st, the Harbin Science and Technology Research Project hosted by Professors Ma Fang and Ren Nanqi, PhD supervisors of Harbin Institute of Technology, Harbin Institute of Technology, approved the research on the industrialization of compound bioflocculant. At present, flocculants are widely used in water treatment, wastewater treatment, pharmaceutical industry, food industry and fermentation industry. However, commonly used flocculants are ineffective or difficult to be biodegraded during use, and there are secondary pollutions. In view of the above problems, the development of efficient, safe, non-toxic, non-secondary pollution flocculants has become a trend. Bioflocculant is a new type of water purification agent that is safe, efficient, and can be naturally degraded by using biotechnology to ferment, extract and purify microorganisms. It is environmentally friendly, safer to the human body, and is typically green. Water treatment agent. The development of bio-flocculants has become a hot topic in the research and development of new water treatment agents at home and abroad. The research team led by Ma Fang and Ren Nanqi started research on bio-flocculants since 1997 and was listed as a key scientific and technological project in Heilongjiang Province. In order to realize the industrialization of the research results as soon as possible, Harbin Institute of Technology Environmental Protection Technology Co., Ltd. has listed the development of compound bio-flocculants as a key development industrialization project. Figures show that China has nearly 600 million tons of straw each year, but its utilization is less than 20% of the total. The large-scale production of complex bioflocculant using straw as raw material can increase the utilization of straw every year to 60-80% of the total amount. It is expected that the resource utilization rate of straw will be increased by three times, and the recycling of resources will be realized. It is predicted that the annual demand for flocculants in the water treatment pharmaceutical market in China will be about 1.5 to 2 million tons, and annual sales will be about 2 to 3 billion yuan.
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Cow magnets are popular with dairy farmers and veterinarians to help prevent hardware disease in their cattle. While grazing, cows eat everything from grass and dirt to nails, staples and bits of bailing wire (referred to as tramp iron). Tramp iron tends to lodge in the honeycombed walls of the reticulum, threatening the surrounding vital organs and causing irritation and inflammation, known as hardware disease. The cow loses her appetite and decreases her milk output (dairy cows), or her ability to gain weight (feeder stock). Cow magnets help prevent this disease by attracting stray metal from the folds and crevices of the rumen and reticulum. One magnet works for the life of the cow. These cow magnets also make a great addition to your science project. These magnets are powerful and are great for general experimentation with magnets. There are several kinds of cow magnets: 1) Ceramic cow magnet: This rectangular cow magnet is made of ceramic 5 (strontium ferrite) magnet material; Its special magnetization pattern causes nails and other sharp metal objects to line up along the length of the magnet where they are no longer a danger to the cow; The FDA-approved epoxy coating is gentle on the cow and helps protect the magnet from chipping; Rounded corners ensure safe and easy passage to the reticulum2) AlNiCo 5 cow magnet: A favorite of dairymen and vets for over 30 years; This is the standard cast AlNiCo cow magnet with bright, metal finish; It is non-toxic and non-corrosive in use
HIT has achieved a new result of "biological pollution control" using straw as raw material
It is not uncommon for high-tech to make waste stalks "waste and treasure." Recently, experts from the Harbin Institute of Technology's School of Municipal Environmental Engineering transformed waste straw into a new baby, adding a new ability to straw. Their new bio-pollution new bio-flocculant, which is the first to use wastes such as straws and other wastes, is highly efficient, non-toxic, and environmentally friendly.