6results about How to "Improve physical structure" patented technology

This invention provides a slope protection material composed of recycled heavy metal tailings and its preparation method. The material includes: recycled heavy metal tailings treated with a heavy metal chelating agent as a heavy metal ion capture agent, the chelating agent being added at 0.05%–0.2% of the heavy metal tailings weight; recycled heavy metal tailings as aggregate, which is mixed with natural soil to form a base material at a ratio of 1:1.5–2.5; fine aggregate and fine sand, added at 5%–10% of the base material weight; and high-viscosity industrial-grade sodium alginate added as a water-retaining and reinforcing agent, added at 0.5%–2.0% of the base material weight. Additionally, 28% organic matter is added to the base material. The application of this invention effectively solves the problems of ineffective utilization of recycled heavy metal tailings and excessive use of scarce natural soil in existing technologies, and also addresses the issues of weak strength, poor effectiveness in steep slope treatment, and poor stability in existing slope protection materials.

The invention belongs to the technical field of lithium ion batteries, and relates to a cyano electrolyte additive, an electrolyte and a lithium ion battery. The cyano electrolyte additive comprises a nitrile additive and a functional additive; the structural formula of the functional additive is shown in the specification. The nitrile additive and the functional additive are compounded, the functional additive has a cyano group and a triazine ring, the triazine ring is chelated with transition metal ions and cooperates with the cyano group to form a film, and a benzene ring rigid structure can enhance the thermal stability. The nitrile additive and the functional additive have a cyano complementation effect, three phenyl groups in the functional additive are connected with a triazine ring, so that the functional additive has a larger structure and steric hindrance and cannot be completely complexed with transition metal ions on the surface of the positive electrode, and the short-chain nitrile additive has a smaller structure and can make up the space of the functional additive; and the two synergistically form a complementary effect to form a compact interfacial film on the surface of the positive electrode so as to improve the high-temperature performance.

The invention provides a remediation method for soil in a semi-arid region, and belongs to the technical field of soil remediation. According to the remediation method for the soil in the semi-arid region, the physical structure of the soil is optimized through deep ploughing and rainwater collection, a straw matrix, the chemical environment is regulated and controlled through a composite conditioner, the biological function is enhanced through mixed sowing of local pioneer plants and a composite microbial agent, and a multi-dimensional synergistic remediation system is formed; local pioneer plants are selected, so that the invasion risk of alien species is avoided; natural materials such as degradable starch mulching film, decomposed straw and organic fertilizer are adopted and matched with the compound microbial agent, no chemical residue exists, local microbial community optimization can be promoted, and the stability of a soil ecological system can be improved; straw, cattle and sheep manure and other agricultural wastes are used for preparing a matrix and an organic fertilizer, and the raw material cost is reduced; the design of the rainwater collecting ditches is combined with natural rainwater resources, the manual irrigation cost is reduced, the soil ecosystem can be autonomously kept stable after remediation is completed, and secondary degradation is effectively avoided.

This invention proposes a method and system for constructing a microbial and vegetation synergistic revegetation system for coastal saline soil engineering sites. It belongs to the field of ecological restoration engineering technology. The method includes: analyzing the micro-topographic features of coastal saline soil engineering sites, identifying heterogeneous areas of natural micro-topography, and generating micro-topographic feature data; designing differentiated micro-topographic modification schemes based on the micro-topographic feature data, constructing a micro-topographic modification model with spatial differentiation characteristics, and providing a suitable micro-environmental basis for subsequent synergistic effects of microorganisms and vegetation; and deeply coupling MIP (microbial community-induced calcium carbonate mineralization) technology with the screening of salt-tolerant plant functional groups, combined with differentiated micro-topographic modification design, breaking the traditional separation between soil improvement and planting, effectively improving the soil structure of coastal saline soil, enhancing soil water retention, providing a suitable soil environment for stable vegetation establishment, and avoiding revegetation failure due to unsustainable soil structure improvement.

This invention discloses a method for rapidly improving the productivity of degraded grassland, relating to the field of grassland ecological restoration technology, and is mainly applicable to degraded Leymus chinensis meadow steppes in temperate continental semi-arid climates. The method involves a combined root-cutting and fertilization operation on the target degraded grassland, followed by enclosure and management to complete the restoration. During the regreening period of the degraded grassland, 1-2 rows and oblique root cuts are performed at 6-10 day intervals. Fertilization involves applying 45-60 kg / mu of granular or mixed organic fertilizer. Granular or mixed organic fertilizer is applied 3-5 days after root cutting, and enclosure and management are implemented for 2-2.5 years with a complete ban on grazing. This invention is simple to operate, effectively promotes the natural recovery of Leymus chinensis communities, rapidly improves the productivity of degraded grasslands, meets the restoration needs of degraded Leymus chinensis meadow steppes in temperate continental semi-arid climates, and is easily scalable and applicable.

This invention relates to a bacterial strain that improves the physical structure of red mud and its application. The strain BRT1 is classified as Staphylococcus epidermidis. Staphylococcus epidermidis The accession number is GDMCC No. 66375, the accession date is May 22, 2025, and the depositary institution is Guangdong Microbial Culture Collection Center. This invention utilizes the BRT1 strain, which efficiently improves the physical structure of red mud, solving the technical problem of poor red mud structure. The BRT1 strain secretes extracellular polymeric substances (EPS) as a bio-cementitious agent, effectively promoting the aggregation of red mud particles and forming stable aggregate structures.