Abstract: The present invention relates to a waste battery treatment apparatus using continuous heat treatment, and a method for recovering valuable metals from lithium-based batteries using the same, the waste battery treatment apparatus comprising: a frame (10); a reaction reservoir (30) which is disposed in the inner space of the frame (10) and has thereinside a treatment space (S1) in which waste batteries to be treated are disposed; an inlet 34 (33) in which a gas blocking door (34) is disposed so as to selectively communicate the treating space (S1) with the outside, and which serves as a path through which an object to be treated is inputted to the treating space (S1) of the reaction reservoir (30). In addition, the waste battery treatment apparatus is provided with a vacuum forming means (40) which is connected to the treatment space (S1) of the reaction reservoir (30) to vacuumize the treatment space (S1).

Abstract: Provided is a method of measuring a change in the density of an underground material. To measure the change in the density of the underground material, a borehole is installed above a target underground material and a first gravimeter and a second gravimeter are installed outside and inside of the borehole, respectively. Sequentially, a change in the density of the target underground material is calculated based on a first gravitational change and a second gravitational change measured using the first gravimeter and the second gravimeter. According to the method, it is possible to precisely measure the change in the density of the target underground material, such as an oil, a gas, etc., stored in an underground reservoir and carbon dioxide injected into an underground storage.

Abstract: The present invention relates to a method of simultaneously recovering cobalt (Co) and manganese (Mn) from lithium-based BATTERY, and more particularly, to a method that is capable of simultaneously recovering cobalt and manganese from lithium-based BATTERY, i.e., recycled resources that contain large amounts of cobalt and manganese, with high purities using multistage leaching and electrowinning methods. According to the method of the present invention, cobalt and manganese can be simultaneously recovered from lithium-based BATTERY as recycled resources, and a recovery method that is cost-effective compared to conventional methods can be provided.

Abstract: Provided is a method of restoring arsenic-contaminated soil. In the present invention, arsenic may be easily separated from soil particles by washing the arsenic-contaminated soil by using a basic solution and simultaneously irradiating the soil with ultrasonic waves. Also, since iron oxide and manganese oxide are exposed to the basic solution by dissolving a portion of the surface of a silicate mineral using the basic solution, a residual form of arsenic may be removed.

Abstract: The present invention provides a method of remediating contaminated soil with heavy metal using a microorganism of Sporosarcina sp. Contaminated soil is inoculated with the Sporosarcina sp. KM-01 (Sporosarcina pasteurii KM-01) strain includes a base sequence of SEQ ID NO. 1, the Sporosarcina sp. KM-07 (Sporosarcina pasteurii KM-07) strain includes a base sequence of SEQ ID NO. 2, and the Sporosarcina sp. KM-12 (Sporosarcina pasteurii KM-12) strain includes a base sequence of SEQ ID NO. 3. The strains are capable of producing urease.

Abstract: Provided is a surface modification method of calcite powder prepared from desulfurized gypsum and heat-treated at a high temperature. According to the surface modification method, hydrophilic calcite powder having polarity may be changed into hydrophobic non-polar calcite powder by safely adsorbing a surface modifier onto a surface of the calcite powder and coating the surface with non-polar fatty acid. Particularly, in the case in which calcite powder heat-treated at a high temperature is hydrophobized, a significantly excellent hydrophobic surface property may be implemented.

Abstract: Provided is a sensor for measuring water levels of groundwater and surface water using magnetostriction displacement and multi measurement system for groundwater and surface water by using the same. The sensor includes an outer case having a hollow space therein and extending in a longitudinal direction, a magnetostriction line spaced apart from an inner wall in the hollow space of the outer case to extend in the longitudinal direction, a floating permanent magnet guided along the magnetostriction line to be movable in the longitudinal direction, the floating permanent magnet being changed in position to correspond to a water level; and a transceiver applying a current pulse into the magnetostriction line to receive an elastic wave that is generated while first magnetic fields formed in a circumferential direction of the magnetostriction line by the current pulse crosses a second magnetic fields formed in an axial direction of the magnetostriction line by the permanent magnet.

Abstract: Provided is an apparatus for a soil box experiment applying vertical vibration. The apparatus for the soil box experiment applying the vertical vibration includes: a soil box for realizing a slope on which landslide occurs, the soil box being inclinedly disposed and having an opened upper portion to accommodate soil therein, a base member disposed under the soil box to support the soil box, and a vibration unit disposed on the base member to vertically vibrate the soil box.

Abstract: Provided is a method of measuring a change in the density of an underground material. To measure the change in the density of the underground material, a borehole is installed above a target underground material and a first gravimeter and a second gravimeter are installed outside and inside of the borehole, respectively. Sequentially, a change in the density of the target underground material is calculated based on a first gravitational change and a second gravitational change measured using the first gravimeter and the second gravimeter. According to the method, it is possible to precisely measure the change in the density of the target underground material, such as an oil, a gas, etc., stored in an underground reservoir and carbon dioxide injected into an underground storage.

Abstract: Provided is an apparatus for a soil box experiment making a shape of a variable landslide surface. The apparatus for the soil box experiment making the shape of the variable landslide surface includes a soil box for realizing a slope on which landslide occurs, the soil box being inclinedly disposed and having an opened upper portion to accommodate soil therein, a base member disposed under the soil box to support the soil box, and a shape changing unit for changing a shape of a bottom surface of the soil box.

Abstract: Provided is a particle separation apparatus. The particle separation apparatus for separating soil by particle size in a wet-type separation manner includes a body unit providing a space in which a mixture of the soil and water is received to flow vertically, a screen unit coupled to the inside of the body unit to separate the soil by the particle size from the mixture that flows vertically, and a space adjustment unit coupled to a lower portion of the body unit to cover the lower portion of the body unit, the space adjustment unit adjusting a volume of a lower space of the body unit to allow the mixture to repeatedly flow in a vertical direction.

Abstract: Provided are an apparatus and method for solution mining using cycling process in which a solvent is injected into underground useful ores to dissolve the useful ores and then collected again to obtain the useful ores. The cycling solution mining method includes a boring process for excavating the underground up to an ore deposit, a fracturing process to generate cracks in the ore deposit, an injection process for inserting a mining apparatus including an insertion rod having a pipe shape up to a lower portion of the well to inject a solvent that dissolves the useful ores into the ore deposit through the insertion rod, wherein a rotation force is applied to the solvent discharged from the insertion rod to increase a diffusion force of the solvent, and a production process for collecting the solvent, in which the useful ores are dissolved, again.

Abstract: Provided is a banking structure using a rock producing acid drainage. The banking structure includes a banking layer including the rock having acid drainage production possibility and an inhibitor for reducing acid drainage production potential of the rock, a capillary breaker layer stacked between a lower portion of the banking layer and an underground water level surface to prevent underground water from being introduced into the banking layer by a capillary phenomenon, and a finishing layer stacked on an upper portion of the banking layer according to a use thereof.

Abstract: The present invention relates to a magnetite-birnessite mixture, to a synthesis method therefor, and to a water-treatment method using the same. The magnetite-birnessite mixture synthesis method according to the present invention includes: a first synthesis step in which magnetite is synthesized; a second synthesis step in which manganese is made to adsorb onto the surface of the magnetite by supplying manganese while maintaining a basic state in the presence of the magnetite, and then synthesizing birnessite on the surface of the magnetite by supplying an oxidizing agent and sodium, thereby synthesizing a mixture in which magnetite and birnessite are bound together; and a purification step in which the mixture of magnetite and birnessite is purified.

Abstract: The present invention relates to a method for manufacturing an electrode module for recovery of metal ions, an electrode module for recovery of metal ions, and an apparatus for recovery of metal ions including the same. The present invention provides a method for manufacturing an electrode module for recovery of metal ions, the method including the steps of: a) preparing a first electrode part and a second electrode part for electrically adsorbing or desorbing metal ions contained in a liquid; and b) interposing an insulating layer, through which the liquid passes, between the first electrode part and the second electrode part, an electrode module for recovery of metal ions manufactured by the method, and an apparatus for recovery of metal ions including the same.

Abstract: An electrowinning apparatus and method are provided. The electrowinning apparatus includes: an electrolytic cell including a body portion which has an inlet for introducing an aqueous solution containing metal ions into the body portion and a conical portion which is gradually reduced in diameter from top to bottom and disposed under the body portion; a ring-shaped cathode coupled to an inner circumferential surface of the body portion of the electrolytic cell and having an entrance hole which extends from an outer circumferential surface of the cathode through to an inner circumferential surface of the cathode and is connected to the inlet of the electrolytic cell; and a hollow anode having an upper end disposed outside the electrolytic cell and inserted into the cathode. In the electrowinning method, a metal can be recovered from an aqueous solution containing a low concentration of metal ions using the above cyclone-shaped electrowinning apparatus.

Abstract: An apparatus for distributing CO2 with an advanced function of adjusting the pressure and temperature of CO2 for geologic injection includes a manifold including a plurality of branching pipes to receive carbon dioxide for geologic injection from a plurality of storage tanks, a distribution chamber having an inlet communicating with the manifold and an outlet connected to an injection pipe extending to an underground tubular well, so that the carbon dioxide, which has been received through the manifold, is supplied through the injection pipe, a temperature adjusting part to adjust the temperature of the carbon dioxide introduced into the distribution chamber, and a flow rate and hydraulic pressure adjusting part to adjust a flow rate and a hydraulic pressure of the carbon dioxide injected into an underground through the distribution chamber. The temperature and pressure conditions of CO2 on geologic injection are controlled through a user interface.

Abstract: The present invention relates to a porous manganese oxide-based lithium absorbent and a method for preparing the same. The method includes the steps of preparing a mixture by mixing a reactant for the synthesis of a lithium-manganese oxide precursor powder with an inorganic binder, molding the mixture, preparing a porous lithium-manganese oxide precursor molded body by heat-treating the molded mixture, and acid-treating the porous lithium-manganese oxide precursor molded body such that lithium ions of the porous lithium-manganese oxide precursor are exchanged with hydrogen ions, wherein pores are formed in the lithium-manganese oxide precursor molded body by gas generated in the heat treatment. The porous manganese oxide-based lithium adsorbent according to the present invention is easy to handle and has many more adsorption reaction sites compared to existing molded adsorbents, thus providing high lithium adsorption efficiency.

Abstract: A method of measuring a pumping amount of groundwater by using water level fluctuation, a water level measuring sensor including an arithmetic operation unit for calculating a pumping amount by using the method, and a computer-readable recording medium having recorded thereon a program for executing the method are disclosed. The method includes: obtaining groundwater level data according to a measurement time by measuring fluctuation of a groundwater level for a predetermined period continually at time intervals; comparing groundwater level formed in a full pumping period including an initial stage a quasi-balance period, and a recovery period calculates a total time when pumping has been performed, by using a measurement time of the sorted data; and calculates a total pumping amount by using the total pumping time calculated.

Abstract: The present invention relates to a method of concentrating and recovering precious metals from waste mobile phone PCBs and spent automotive catalysts using waste nonferrous slag, in which precious metals such as gold, silver, platinum, palladium or rhodium can be concentrated and recovered by simultaneously treating different industrial wastes, including waste nonferrous slag, waste mobile phone PCBs and spent automotive catalysts, and industrial waste can be recycled as resources. According to the present invention, it is possible to maximize the utilization ratio of precious metal resources that totally depend on the import in terms of the domestic situation of a poor-natural resources country. In addition, the industrial waste can widely be utilized for the recovery of precious metals in the fields of household appliance recycling and electronic part manufacture, and the recycling of industrial by-products discharged in the field of non-ferrous refinery.