The "Farming Special Fertilizer for Sewage Reduction and Its Standardized Production Technology and Demonstration and Extension" project has recently received approval from the Fujian Provincial Science and Technology Department. This innovative fertilizer, specifically designed for vegetables and enhanced with nitrification inhibitors and heavy metal deactivators, has achieved an internationally advanced standard.
According to recent reports, the project has successfully developed a specialized fertilizer aimed at reducing soil pollution, particularly targeting the reduction of nitrate and heavy metal content in vegetables. The integration of various technologies and scientific approaches has demonstrated significant innovation. Through the analysis of grey correlation method standard values, the research highlights the need to improve soil quality assessments when evaluating heavy metal pollution in vegetable fields.
This approach combines general standard values with the physical and chemical properties of different soil types and vegetable varieties, offering a fresh perspective on accurately assessing and scientifically managing heavy metal pollution. Additionally, extensive field trials have led to the development of practical technical guidelines for the production of these specialized fertilizers, making them highly applicable in real-world farming scenarios.
The project not only contributes to environmental protection but also supports sustainable agricultural practices by promoting healthier crop production and safer food supply chains. With its strong scientific foundation and practical application, this initiative represents a major step forward in the field of eco-friendly agriculture.
Special Sulfur Increasing Agent For High Sulfur Steel
Sulfurizing agent
Principle of sulfur addition agent (ferrous sulfide): Low sulfur content in gray cast iron molten iron is harmful: poor inoculation effect, poor graphite morphology, and poor cutting performance. The appropriate range is 0.07% -0.12%. In this range, sulfur shortens the length of graphite, dulls the ends, changes the shape, and improves mechanical properties. When the sulfur content is less than 0.05%, sulfur addition treatment must be carried out. According to metallographic analysis, sulfur in molten iron exists in a special form, so it is necessary to use professional manufacturers to produce sulfur addition agents when adding sulfur. Remember not to use sulfur addition products indiscriminately, as it may damage the inner wall of the furnace, produce unqualified products, and greatly increase costs. May cause an explosion. The special sulfur additive for cast gray iron produced by Hengkai Metallurgical Materials Sales Co., Ltd. in Luanchuan County is convenient, safe, and reliable to use. It produces very few impurities, has a high absorption rate, and a recovery rate of over 95%. During electric furnace production, a small amount of iron is added to the electric furnace, and a sulfur additive with a particle size of 8-25mm is added to the furnace according to the sulfur demand. Then, iron is added to press the sulfur additive up for melting. For ductile iron, low sulfur content (less than 0.008%) in the original molten iron is also unfavorable. The normal range of 0.010% -0.014% is better. However, for electric furnace melting, sulfur oxygen inoculants need to be used in this range for micro sulfur addition to improve the activity of molten iron
46-48%
Product name, grade, chemical composition (%)
S Fe SiO2 Sn residue
Iron sulfide FeS2 46-48 42-45 《 2 》 0.05 Trace Elements
Sulfur Enhancing Agents,Sulfur Enhancers,High Purity Sulfur Additive
LUANCHUAN COUNTY HENGKAI METALLURGICAL MATERIALS SALES CO.,LTD , https://www.pyritechina.com