The addition of antibiotics and arsenic to the feed promotes pig growth, but these elements can adversely affect the environment and human health through pig urine. Recently, Wu Zhengyan, a research group of the Institute of Technology and Biotechnology, Chinese Academy of Sciences, Hefei Institute of Material Science, developed a nanocomposite that can remove water or soil pollution caused by “pig emissions” and is easy to recycle. The core journal of the Royal Society of Chemistry, Environmental Science: Nano, has published the results. Veterinary Drugs
According to reports, in recent years, antibiotics and arsenic have been widely added to pig feed to improve disease resistance and promote pig growth. Studies have shown that the residues of these elements in pigs are only about 10%, within the safe range of consumption. However, about 90% of the other will be discharged into the environment, causing heavy metal pollution to water, soil and vegetation, posing a threat to human health. This problem has become one of the key bottlenecks restricting the sustainable development of the aquaculture industry.
Recently, Wu Zhengyan's research team used amine-functionalized triiron tetroxide and manganese dioxide to prepare a new type of nanocomposite, which can simultaneously remove antibiotics and arsenic in pig urine aqueous solution or soil. The material is easy to recycle after use, has high biosafety and good application prospects, and provides a new idea for dealing with heavy metal pollution in aquaculture.
Monday, October 29, 2018
China's first cross-border natural gas pipeline river bottom shield project completed
With the completion of the welding of the last weld in the Chinese territory, the welding installation of the two river bottom pipelines in the Heilongjiang Crossing Section of the Sino-Russian Eastern Gas Pipeline Project was successfully completed, 23 days ahead of the contract period. This is the first cross-border natural gas pipeline tunnel project in China. It marks the complete opening of the “throat main road” connecting the Chinese territory of China and Russia and the Russian territory, laying a solid foundation for the scheduled production of gas at the end of next year. basis.
The Heilongjiang Shield Crossing Project is the control project with the highest construction risk and the most technical difficulty in the Sino-Russian East Line project. The construction period is tight, the task is heavy, and the requirements are high. The Sino-Russian East Line Project Department of the pipeline branch cooperates with the Russian owner, SGS supervision and construction contractor to overcome the large-scale concrete pouring in the shaft and the overall prefabrication of the S-shaped pipeline in the shaft. Construction problems have effectively guaranteed the quality and safety of the construction and the progress of the construction period. The second pipe was used for 102 days, the qualification rate of welding was 96.2%, 77 days less than the first pipe welding, and the pass qualification rate of welding was increased by 3 percentage points.
It is reported that while the Chinese side speeds up construction, the construction of the Sino-Russian East-line natural gas pipeline in Russia's Siberian power pipeline has also entered the final stage. Substances Used in Analytical Chemistry
The Heilongjiang Shield Crossing Project is the control project with the highest construction risk and the most technical difficulty in the Sino-Russian East Line project. The construction period is tight, the task is heavy, and the requirements are high. The Sino-Russian East Line Project Department of the pipeline branch cooperates with the Russian owner, SGS supervision and construction contractor to overcome the large-scale concrete pouring in the shaft and the overall prefabrication of the S-shaped pipeline in the shaft. Construction problems have effectively guaranteed the quality and safety of the construction and the progress of the construction period. The second pipe was used for 102 days, the qualification rate of welding was 96.2%, 77 days less than the first pipe welding, and the pass qualification rate of welding was increased by 3 percentage points.
It is reported that while the Chinese side speeds up construction, the construction of the Sino-Russian East-line natural gas pipeline in Russia's Siberian power pipeline has also entered the final stage. Substances Used in Analytical Chemistry
In 2017, the total amount of China's biomedical industry was about 3.8 trillion
The China Life Science Park Forum hosted by the China Biotechnology Development Center was held in Beijing. During the period, the “Analysis Report on the Development Status of China Biomedical Industrial Parks in 2018” (hereinafter referred to as the “Report”) was released. According to the "Report", in recent years, the scale of China's biomedical industry has continued to grow, and the proportion of biomedical output to the pharmaceutical industry has continued to rise. In 2017, the total amount of biomedical industry in China was about 3.8 trillion yuan. The total output value of biomedicine in the surveyed park was about 1.46 trillion yuan, accounting for 38.42% of the total biomedical industry in China. Pharma Intermediates Manufacturers
It is reported that the scope of this survey mainly includes national high-tech industrial development zones and national economic and technological development zones. The online questionnaires were used to investigate the industrial status and results transfer and R&D investment and technology in the past three years. A total of 198 data on output, talent, business, products, and environment.
It is worth noting that in 2017, the total output value of the biomedical industry in the park accounted for the proportion of the total industry of the park, increasing from 16.86% in 2015 to 18.80%. In particular, the bio-pharmaceutical industry in the national high-tech zone has developed rapidly, and the proportion of the total industrial output of the national high-tech zone has increased from 19.52% in 2015 to 22.48% in 2017. Biomedicine has gradually become one of the industrial pillars of the park.
The "Report" pointed out that the development of biomedical industry, the national high-tech zone and the national economic development zone have become the core carriers of the development of China's biomedical industry. In 2017, the output value of the bio-pharmaceutical industry in the national high-tech zone and the national-level economic development zone was 1.21 trillion yuan and 0.23 trillion yuan respectively, accounting for 22.48% and 9.63% of the total industrial output of each park.
It is reported that the scope of this survey mainly includes national high-tech industrial development zones and national economic and technological development zones. The online questionnaires were used to investigate the industrial status and results transfer and R&D investment and technology in the past three years. A total of 198 data on output, talent, business, products, and environment.
It is worth noting that in 2017, the total output value of the biomedical industry in the park accounted for the proportion of the total industry of the park, increasing from 16.86% in 2015 to 18.80%. In particular, the bio-pharmaceutical industry in the national high-tech zone has developed rapidly, and the proportion of the total industrial output of the national high-tech zone has increased from 19.52% in 2015 to 22.48% in 2017. Biomedicine has gradually become one of the industrial pillars of the park.
The "Report" pointed out that the development of biomedical industry, the national high-tech zone and the national economic development zone have become the core carriers of the development of China's biomedical industry. In 2017, the output value of the bio-pharmaceutical industry in the national high-tech zone and the national-level economic development zone was 1.21 trillion yuan and 0.23 trillion yuan respectively, accounting for 22.48% and 9.63% of the total industrial output of each park.
Friday, October 26, 2018
San Diego, California or banned polystyrene plastic products
On October 15th, the City Council of California voted 5:3 to pass a ban on foam products, especially limiting the use of polystyrene plastic products in the San Diego area. But then there will be a second round of voting. Echemi Industrial Materails
The proposal plans to ban the use of products including polystyrene foam lunch boxes, cups, egg boxes, etc. Violators will be fined between US$200 and US$500 based on the number of violations within 12 months.
Opponents of the proposal believe that environmental protection actions should follow their own wishes. The mandatory ban on the use of polystyrene plastic products will greatly increase the cost of business, and will not have a major impact on chain enterprises, but for small businesses. Said that it will cause a certain impact.
The San Diego City Council has decided to impose a 12-month exemption period on small businesses with annual incomes of less than $500,000 for issues that the ban may put pressure on small businesses.
Several cities in San Diego have already approved a ban on polystyrene plastic products. If the San Diego City Council finally passes the ban, San Diego will become the largest city in California to ban the use of polystyrene plastic products.
The proposal plans to ban the use of products including polystyrene foam lunch boxes, cups, egg boxes, etc. Violators will be fined between US$200 and US$500 based on the number of violations within 12 months.
Opponents of the proposal believe that environmental protection actions should follow their own wishes. The mandatory ban on the use of polystyrene plastic products will greatly increase the cost of business, and will not have a major impact on chain enterprises, but for small businesses. Said that it will cause a certain impact.
The San Diego City Council has decided to impose a 12-month exemption period on small businesses with annual incomes of less than $500,000 for issues that the ban may put pressure on small businesses.
Several cities in San Diego have already approved a ban on polystyrene plastic products. If the San Diego City Council finally passes the ban, San Diego will become the largest city in California to ban the use of polystyrene plastic products.
Wednesday, October 10, 2018
Introducing pesticides for several biological agents
Sophora flavescens and Kushen extract - Natural Chemicals & Compounds
Matrine
It is made from the dried roots, plants and fruits of the leguminous plant Sophora flavescens by organic solvents such as ethanol. It is an alkaloid. In recent years, it has been widely used in agriculture and has good control effects. It is a low-toxic, low-residue, environmentally-friendly pesticide. It mainly controls various pests such as pine caterpillars, tea caterpillars and cabbage caterpillars. It has many functions such as insecticidal activity, bactericidal activity, and regulation of plant growth function.
Bacillus thuringiensis
Abbreviated as Bt, it is a type of Bacillus licheniformis that includes many varieties. The bacterium produces two major toxoids, endotoxin (with crystals) and exotoxin, which stop the pests from feeding, and finally the worms die from hunger and poisoning. Therefore, the bacterium can be used as a microbial low-toxic insecticide for controlling a variety of pests of Orthoptera, Coleoptera, Diptera, Hymenoptera, especially Lepidoptera.
Beauveria bassiana
It is a kind of entomopathogenic fungus with a wide range of parasitic spectrum and is a contact microbial insecticide. The control objects include corn borer, pine caterpillar, various scarabs, rice leafhopper, planthopper, mulberry, tea leafhopper, tea caterpillar, soybean borer and aphid, especially for corn borer and pine caterpillar. The means are used year after year.
Nuclear polyhedrosis virus
A group of insect viruses. This type of virus and cytoplasmic polymorphism virus can only be found on a limited number of insects. Because it has a great influence on other organisms and has a huge insecticidal power, it is also used as a biological pesticide for controlling forest pests (such as cypress leaf moth).
Biomimetic pesticide
Allicin
Allicin is a plant biomimetic pesticide, and the content of the general preparation is 80% of allicin. It uses garlic extract, which has low price and good quick-acting effect. It can quickly kill bacteria after treatment. Not only can it inhibit fungal bacteria, but it can also stimulate the growth of crops. Although it is an old medicine, it will be wonderful if it is used well. Triazole + 80% allicin, the control effect can be increased by more than 40% after mixing.
Insecticidal and insecticidal
They are all analogs of synthetic silkworm toxins. The insecticidal tablets have strong contact, stomach and systemic conduction effects, and have good control effects on larvae of lepidopteran pests. The drug is mainly used to control sugarcane. Pests on crops such as rice. Insecticidal is a nerve agent that exhibits dullness, slowness of movement, loss of ability to invade crops, cessation of development, softening of the worms, paralysis, and death after insect contact and feeding. The insecticidal double has a strong systemic action and can be absorbed and transmitted by the leaves and roots of the crop. At the same dose, the insecticidal effect is twice as high as the insecticidal double.
Matrine
It is made from the dried roots, plants and fruits of the leguminous plant Sophora flavescens by organic solvents such as ethanol. It is an alkaloid. In recent years, it has been widely used in agriculture and has good control effects. It is a low-toxic, low-residue, environmentally-friendly pesticide. It mainly controls various pests such as pine caterpillars, tea caterpillars and cabbage caterpillars. It has many functions such as insecticidal activity, bactericidal activity, and regulation of plant growth function.
Bacillus thuringiensis
Abbreviated as Bt, it is a type of Bacillus licheniformis that includes many varieties. The bacterium produces two major toxoids, endotoxin (with crystals) and exotoxin, which stop the pests from feeding, and finally the worms die from hunger and poisoning. Therefore, the bacterium can be used as a microbial low-toxic insecticide for controlling a variety of pests of Orthoptera, Coleoptera, Diptera, Hymenoptera, especially Lepidoptera.
Beauveria bassiana
It is a kind of entomopathogenic fungus with a wide range of parasitic spectrum and is a contact microbial insecticide. The control objects include corn borer, pine caterpillar, various scarabs, rice leafhopper, planthopper, mulberry, tea leafhopper, tea caterpillar, soybean borer and aphid, especially for corn borer and pine caterpillar. The means are used year after year.
Nuclear polyhedrosis virus
A group of insect viruses. This type of virus and cytoplasmic polymorphism virus can only be found on a limited number of insects. Because it has a great influence on other organisms and has a huge insecticidal power, it is also used as a biological pesticide for controlling forest pests (such as cypress leaf moth).
Biomimetic pesticide
Allicin
Allicin is a plant biomimetic pesticide, and the content of the general preparation is 80% of allicin. It uses garlic extract, which has low price and good quick-acting effect. It can quickly kill bacteria after treatment. Not only can it inhibit fungal bacteria, but it can also stimulate the growth of crops. Although it is an old medicine, it will be wonderful if it is used well. Triazole + 80% allicin, the control effect can be increased by more than 40% after mixing.
Insecticidal and insecticidal
They are all analogs of synthetic silkworm toxins. The insecticidal tablets have strong contact, stomach and systemic conduction effects, and have good control effects on larvae of lepidopteran pests. The drug is mainly used to control sugarcane. Pests on crops such as rice. Insecticidal is a nerve agent that exhibits dullness, slowness of movement, loss of ability to invade crops, cessation of development, softening of the worms, paralysis, and death after insect contact and feeding. The insecticidal double has a strong systemic action and can be absorbed and transmitted by the leaves and roots of the crop. At the same dose, the insecticidal effect is twice as high as the insecticidal double.
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