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990 results about "Soil properties" patented technology

Soil measuring instrument, soil measurement assisting device and method, recorded medium on which a program is recorded, recorded medium on which data is recorded, application amount controller, application amount determining device, method for them, and farm working determination assisting system

A model for determining the type of soil, the water content of a soil, and the soil properties, and a soil measurement data storage portion (60) to store therein measurement data necessary to carry out the model and correlated with specific measurement conditions are provided. The water content is measured by a water content measuring portion (57) on the basis of the measurement data fed from a soil sensor (S). The type of soil is determined by a feature extracting portion (56) and a type-of-soil determining portion (58), and the determined type of soil is sent to a determining portion (59). The determining portion (59) determines corresponding conditions and a model according to the type of soil and water content of the measured place received and sets them in a predetermined processing portion. The soil sensor feeds measurement data meeting the measurement conditions to a measurement information processing portion (55), and the processing portion (55) determines the soil properties according to the determined model.
Owner:NAT UNIV CORP TOKYO UNIV OF AGRI & TECH

System for restoring organic contaminated soil through in-situ electrical heating and treatment method

The invention provides a system for restoring organic contaminated soil through in-situ electrical heating. The system comprises an infrastructure technology, an electronic control system, a gas treatment system, a monitoring and data acquisition system and a repairing effect comprehensive assessment system. The infrastructure technology comprises heating well and extraction well construction, ground compaction and insulating layer construction technologies; heating wells are distributed on a contaminated site according to a triangle arrangement principle and a proximity principle, and the extraction well is arranged in the geometric center of the layout of the heating well; the gas treatment system is composed of a pre-cooling adsorption sledge, an extraction sledge and a treatment sledge, and is used for completing gas extraction and treatment and achieving the tail gas discharging requirement; and the repairing effect comprehensive assessment system evaluates the temperature risingeffect of the contaminated soil in the restoring process and the treatment effect of the contaminated soil. According to the system, the technological route is complete, the soil property applicability is wide, the heating temperature can reach 500 DEG C or above, and volatile and difficult-to-volatilize organic contaminant can be treated at the same time.
Owner:BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION +1

Surface-finishing agent and finished material and method of surface finishing

InactiveUS20060266258A1Developing surfaceHigh water slipping propertyOther chemical processesFibre treatmentSoil propertiesSlurry
The present invention provides a surface-treating agent to form fine roughness on the surface of a material and more specifically a surface treating-agent which forms fine roughness on the surface of a material and is easy to process, thereby being useful for materials for highly water-repellent glass, lenses and fabric, materials with an excellent anti-soiling property, panels having an excellent light scattering property, illumination of optical fiber and the like, materials and coatings to prevent accumulation and adhesion of snow or icicle formation on antennas, wires and steel towers, and roughness formation on the surface of semiconductor substrates; the treated materials; and a method of surface treatment to develop the roughness. The surface-treating agent of the present invention has an average primary particle diameter in the range of 1-50 nm, contains fine particles in the range of 5-60% by mass of the total amount of the surface-treating agent in a slurry of nanoparticles which are treated for water repellency and mechanically dispersed in a solvent containing a volatile solvent, and forms a roughness structure with upward protrusions having a spatial periodicity of 0.1-50 μm on the surface of a material by volatilizing the solvent or dipping repeatedly in water upon treating the surface of the material.
Owner:KEIO UNIV

Circulation well method and device for removing pollutants in underground water

The invention relates to a circulation well method for removing pollutants in underground water. The circulation well is arranged in a polluted place and is in a continuous plum-blossom-shaped, square or hexagonal layout according to soil property, pollution level and radius of influence on soil by equipment. The circulation well is characterized in that 1-N water wells of which the diameter is not smaller than 100 mm and the depth is greater than one meter are drilled, and treatment processes of aeration, air stripping, extraction and dosing are performed to treat the polluted water in the well, wherein the air stripping treatment process: the well water (i.e. underground water) is lifted to the top of the well and is then sprayed downwards through a spray head; in the aeration and extraction treatment processes: the in-well aeration and the air-emptied extraction increase the air-liquid mass transfer interface and enhance the air stripping effect, and the dissolved oxygen content in the underground water is increased in the in-well aeration process, so that the polluted water is placed in an aerobic environment; and in the dosing treatment process: according to different pollution levels and pollutants, oxidizer, a microbial preparation, ozone or/and flocculant are added at an air inlet A of a high-pressure air pump for aeration or in a special dosing pipe.
Owner:JIANGSU DDBS ENVIRONMENT REMEDIATION

Layered remediation method for chromium contaminated soil

ActiveCN104741373AAvoid not distinguishing between soil propertiesAvoid methodContaminated soil reclamationChromium contaminationSoil properties
The invention discloses a layered remediation method for chromium contaminated soil. The method comprises the following steps: detecting the actual chromium contamination condition of soil, determining the boundary of severe and mild chromium contaminated soil on soil depth, performing remediation on the severe chromium contaminated soil by adopting a chemical reduction stabilization method, performing remediation on the mild chromium contaminated soil by adopting a chemical or biochemical reduction stabilization method, performing soil conservation, balancing the soil acidity and alkalinity and performing later-stage tracking and monitoring. An actual chromium contaminated field serves as a support, the combined remediation methods are selected aiming at the current situation that the contamination degrees of the upper soil and the bottom soil are different, the severe chromium contaminated soil on the surface layer is subjected to remediation by adopting the chemical reduction stabilization method, the mild chromium contaminated soil on the deep layer is subjected to remediation by adopting the chemical or biochemical reduction stabilization method, the defects that the soil properties are not distinguished and a same remediation method is adopted in a unified mode in the previous research are overcome, and ex-situ remediation and in-situ remediation are combined to be used, so that the remediation method is reasonable in application under the condition that the remediation effect is guaranteed, the remediation cost is reduced, and the method can be applied to actual soil remediation on a large scale.
Owner:BCEG ENVIRONMENTAL REMEDIATION CO LTD

Modeling and numeric value simulating method of groundwater environment

The invention relates to a modeling and numeric value simulating method of ground water environment, comprising the following steps of: (1) carrying out space grid interpolation on surface elevation and embedded depth of groundwater by using space interpolation functions KRIG2D() or TRI<->SURF() functions of IDL (Interface Definition Language) software, and simultaneously dividing a space definite difference molecule value simulation grid to acquire two same differential grid matrixes; setting a simulation region soil property file and a surface elevation and groundwater water level property file; and calculating the embedded depth h0 and unit boundary velocity field of the groundwater; (2) establishing a one-dimension solute transport model in an unsaturated zone; (3) establishing a solute transport two-dimension numeric value model in a saturated zone; (4) carrying out approximate representation on each term in the formula; and (5) solving each component by using IDL matrix algorithm. The invention effectively, quickly and conveniently simulate the groundwater environment based on the IDL platform, thereby the invention is widely used for processes of numeric value simulation, prediction, emergency prediction and the like of the burst pollution event of the groundwater environment.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Agricultural non-point source phosphorus pollution estimation method based on soil property space distribution

An agricultural non-point source phosphorus pollution estimation method based on soil property space distribution comprises the three steps: (1) building a response relation between the soil property space distribution and non-point source pollution load, wherein the step (1) comprises model small study region selection, soil property space distribution, typical area non-point source pollution soil and water assessment tool (SWAT) model simulation and relation building between soil property and the non-point source pollution load space distribution; (2) collecting and detecting a to-be-estimated region soil sample; and (3) estimating agricultural non-point source pollution load. According to the agricultural non-point source phosphorus pollution estimation method based on the soil property space distribution, the agricultural non-point source load of a research area can be rapidly and effectively forecast and estimated only the regional soil property space distribution needs to be obtained on the basis that the response relation between the soil property space distribution and the model simulated non-point source pollution load is built. The agricultural non-point source phosphorus pollution estimation method based on the soil property space distribution has a good application prospect in the technical field of non-point source pollution management.
Owner:BEIJING NORMAL UNIVERSITY

Device and method for improving saline land

The invention relates to a device and a method for improving a saline land, wherein, the device comprises an isolation layer arranged on the partial periphery of an afforestation-waiting area, and a main blind drain and an auxiliary blind drain used for draining salt and alkali and arranged above the critical water level in the afforestation-waiting area, and the water outlets of the main blind drain and the auxiliary blind drain lead to a water-collecting well, the level surface of which is lower than the blind drains. The method comprises the flowing steps: arranging the isolation layer, laying the blind drains, constructing the water-collecting well, and improving physical and chemical soil properties. The invention has the advantages that the invention can fully use various solid wastes as main materials available to improve the saline land and conduct the improvement on the saline land through the combination of physical, chemical, biological methods; the various solid wastes can be used for constructing the main blind drain, the auxiliary blind drain and the water collecting well, and controlling the water table; a tree microarea is planted, physical and chemical soil properties on a surface layer are improved, and the salt content of the soil is reduced; and indigenous plants and new plant species with the saline-alkali resistance are selected for being planted, and the forestry afforestation and the landscaping are achieved through the post-stage nursing, long-term salinity control and alkaline control measures.
Owner:北京首创大气环境科技股份有限公司

Underground storey-adding process of frame structural building by one-by-one independent foundation underpinning method

The invention relates to an underground storey-adding process of a frame structural building by a one-by-one independent foundation underpinning method. In the process, top beams and top supports of the building with a proposed basement and columns and foundations of the completed basement jointly support an upper structure of the building, and then earth excavation and construction of the columns and the foundations of the residual uncompleted basement are continuously carried out. Earth excavation and top support are simultaneously performed; after the original foundations are removed, the load of the upper frame columns is transferred to the adjacent foundations around the columns through the top beams and transferred to earth through the foundations; and after new foundations and an lower ground level underground frame column are constructed, the load of the upper frame columns can be jointly supported by the new foundations, beam supports and the adjacent foundations. Compared with 'a slab foundation underpinning method' in which the upper structure is simply supported by soil mass under slabs, the method is more reliable and can complete underground storey-adding in areas with worse soil property; compared with the underpinning mode of removing the foundations of the whole building simultaneously, the method is more safe; and even though engineering accidents happen, the building is locally but not integrally unstable.
Owner:SHANDONG JIANGU SPECIAL ENG LIMIT
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