6results about How to "Solve problems such as pollution" patented technology

The invention belongs to the field of microorganisms, and relates to a bacillus velezensis BLS-27 and a fungicide and application thereof, the bacillus velezensis BLS-27 is preserved in China General Microbiological Culture Collection Center on October 21, 2024, the preservation number is CGMCC No.32274, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The strain BLS-27 has an inhibition effect on wild jujube anthracnose pathogenic bacteria, can effectively inhibit various plant disease pathogenic bacteria, shows broad-spectrum antibacterial activity, is environment-friendly and can be widely applied to plant disease control.

The invention discloses a near-infrared quantitative measurement method for a PE plastic product, and belongs to the technical field of plastic product detection. The manufacturing method comprises the following steps: determining a basic PE plastic ingredient proportion, designing a gradient standard sample formula, weighing raw materials, mixing, filling a mold, heating, fusing, curing and post-processing to obtain the standard sample. The method for establishing the measurement model comprises the following steps of: collecting a near infrared spectrum of a standard sample, preprocessing the near infrared spectrum, optimizing a characteristic wave band by adopting recursive characteristic elimination and principal component analysis, constructing a dynamic residual network model, and perfecting the model through accuracy optimization, generalization enhancement and mobility improvement strategies. According to the method, the problems that a traditional chemical analysis method is large in pollution, high in cost and poor in stability are solved, rapid nondestructive testing within 1-2 min is achieved, the correlation coefficient R2 of a model prediction value and a real value can reach 0.995, and the problem of measurement instability caused by raw material batch fluctuation is effectively solved.

The present application belongs to the technical field of mineral processing and environmental protection, and particularly relates to a method for removing impurity metal ions and compounds in raffinate acid. The impurity metal ions and compounds such as iron, magnesium and aluminum in the raffinate acid are selectively removed under the synergistic action of adsorption materials and flotation reagents. The method mainly uses the strong adsorption of the adsorption materials and the strong selectivity of the specific flotation reagents, and uses the adsorption materials and the flotation reagents in combination, and through adjusting and controlling the types, the ratio, the dosage of the adsorption materials and the flotation reagents, and the reaction sequence, the time and the temperature, the selective removal of the impurity metal ions and compounds in the raffinate acid is realized, and the comprehensive utilization rate of the raffinate acid is improved. The method is suitable for the purification system of the raffinate acid in the phosphorus chemical industry, and has the advantages of simple method, strong selectivity, remarkable effect and short action time, and has important significance for solving the problems of difficult disposal and reuse of the raffinate acid, high production cost of the phosphorus chemical industry and serious waste of phosphorus resources.

The invention discloses a treatment method for wet purification of phosphoric acid pretreatment by-products, which comprises the following steps: treating white fertilizer slag through the steps of extraction and graining, crystal growing, filtering and washing in sequence, and dissolving and recycling available elements at the same time. In the extraction and graining step, a solution extraction agent is used for extracting the white fertilizer slag, a graining agent is used for graining the white fertilizer slag, and the recyclable elements comprise P, F and N. According to the method, the comprehensive utilization rate of phosphorus resources in the chemical process can be increased, in the white fertilizer slag purification process, intergranular phosphorus in semi-hydrated gypsum lattices and unreacted phosphorus in phosphorite are greatly reduced, the total P2O5 content in the white fertilizer slag is reduced to 0.1% or below, the recovery rate of P2O5 is increased to 99%, and the economic benefits of enterprises are increased.

The utility model provides a dustproof mechanism of a field lens, which comprises a lens body, an output end of the lens body is provided with an emergent mirror surface; the output end of the lens body is sleeved with the dustproof outer cover, the emergent mirror surface is located between the dustproof outer cover and the lens body, an inner cavity is formed by the emergent mirror surface and the dustproof outer cover, an air inlet hole is formed in the outer wall of the dustproof outer cover, a through opening is formed in the middle of the dustproof outer cover, and the outer edge, facing the emergent mirror surface, of the opening extends to form a protruding structure; the bottom of the protruding structure abuts against or is close to the emergent mirror face, and an airflow gap exists between the bottom of the protruding structure and the emergent mirror face so that it can be guaranteed that airflow in the inner cavity faces the opening. The working stability of the laser equipment can be effectively improved, the service life of the laser lens, namely the lens body, is prolonged, the problems of dust light blocking, lens pollution and the like existing in the operation of the laser processing equipment are solved with relatively low cost, the emergent mirror surface of the laser lens can be kept in a clean state, and pollutants of the laser lens can be cleaned in time.

The present invention discloses an ecological floating island that can be automatically lifted and lowered on a channel, comprising: a drainage hole is provided at the warning water level of the two side walls of the channel, a first pulley and a second pulley are respectively installed on the two side walls, a first water storage box and a second water storage box are respectively provided on the outer sides of the two side walls, a floating basket with plants is provided in the channel, and each water storage box has a water outlet, wherein the first water storage box is connected to one end of a first rope bypassing the first pulley, the other end of the first rope is connected to one end of the floating basket, the second water storage box is connected to one end of a second rope bypassing the second pulley, the other end of the second rope is connected to the other end of the floating basket, when the water level in the channel reaches the warning water level, the water in the channel can flow into the first water storage box through the first drainage hole, flow into the second water storage box through the second drainage hole, and pull the floating basket up to above the drainage hole. The present invention can ensure the water flow capacity of the channel, overcome the defect that the existing ecological floating island cannot be used in small-scale waters, and solve the problem of difficulty in pollution control in small-scale waters.