摘要:
A stable liquid composition of a swollen superabsorbent polymer for ground excavation includes water and superabsorbent polymer particles swollen by water absorption, and the specific gravity of the stable liquid composition of a swollen superabsorbent polymer for ground excavation is equal to or less than 1.20. Accordingly, it is possible to provide a stable liquid composition of a swollen superabsorbent polymer for ground excavation and a construction method using the swollen superabsorbent polymer stable liquid composition which can form a stable aquiclude even in a gravel ground having a large water permeability coefficient prevent a decrease in replaceability with concrete and in adhesiveness of concrete to a reinforcing bar, and reduce an amount of waste soil.
摘要:
The object of the invention is to provide a bioactive agent in which the bioactive effectiveness of ferric iron salt and/or ferric ferrous iron salt contained therein is stabilized, making long term preservation possible, so that the bioactive agent can be useful as an original solution for medical use, as a soil conditioner, or the like. An iron-magnesium mixture solution is provided in the invention, wherein the iron-magnesium mixture solution is produced by mixing an aqueous solution containing a ferric iron salt and/or a ferric ferrous iron salt in a concentration of not less than 0.5 mol/L as iron in the ferric iron salt and/or the ferric ferrous iron salt, and an aqueous solution containing a magnesium salt in a concentration of not less than 0.2 mol/L as magnesium in the magnesium salt.
摘要:
The invention relates to a method for utilizing biomass, in which the biomass is pyrolysed within a temperature range from 550°C to 750°C to obtain driven-out gas and remaining carbon-rich solids. It is an object of the invention to specify a method for utilizing biomass, which is based on comparatively expensive feedstocks, but in return gives products of value with unusually good properties, the proceeds of which make the process economically viable. This object is achieved firstly by the use of biomass which has a lignin content of 10 to 30% by weight and a water content of 5 to 25% by weight, and by virtue of the residence time of the biomass within the temperature range from 550 to 750°C being ten to sixty minutes.
摘要:
Die Erfindung betrifft eine Mischung (Compound) aus Schichtmineralien, bestehend aus einen oder mehreren künstlichen oder natürlich vorkommenden Schichtmineralien für die Herstellung eines zeitweise fließfähig eingestellten Baustoffs. Der innovative Baustoff findet insbesondere im Tiefbau, z. B. bei der Verfüllung von Rohreitungsgräben und Kanälen, im Wasserbau oder bei der Sanierung von Dämmen und Deichen Verwendung. Die Erfindungsgemäße Mischung besteht aus mindestens zwei Schichtmineralien, die aufgrund ihres unterschiedlichen Bindungsverhaltens in ihren Strukturen an- und einlagerbare Wassermengen dauerhaft stabil zu einem Zeitpunkt so binden, dass das zeitweise fließfähige Material gezielt rückverfestigt, ohne dazu geschlossene, starre Strukturen, z. B. durch Zugabe hydraulischer Bindemittel oder deren Derivate zu benötigen.
摘要:
A soil additive produced from crushing, grinding and blending specified source rocks wherein a final product contains at least three of andesite, basalt, limestone, dolomite and claystone.
摘要:
A fertilizer comprising at least one layered double hydroxide (LDH) compound containing at least one nutrient anion. In another aspect, the fertilizer comprising at least one clay material mixed with at least one nutrient cation. The fertilizer preferably comprises at least one layered double hydroxide (LDH) compound containing at least one nutrient anion and at least one clay material mixed with at least one nutrient cation. Methods for treating soil, for manufacturing the fertilizer and for enhancing plant growth are also described, as are soil conditioning agents and soil-less culture media.
摘要:
The phosphate mineral based reactive barrier prevents release of contaminants from waste via reaction with contaminants at the interface between the barrier and the waste. The barrier is comprised of a phosphate mineral material that is primarily insoluble. The barrier is placed below, around, and/or on top of contaminated materials such that they are completely contained by a grout curtain. The barrier can be a slurry, blended matrix with other inorganic agents, or composite with a geotextile or geofabric. These methods of construction are used singly or jointly. pH control may be used to optimize chemical reactions within the barrier. The mechanism relies on the phenomena of adsorption, surface precipitation and co-precipitation of metal phosphate surface precipitates to chemically retard diffusion from the waste. Immobilization may occur secondarily when a small percentage of the phosphate minerals partially dissolve and the phosphate precipitates with metals to form metal phosphate precipitates.
摘要:
The present invention is directed to a composition and method for forming an inexpensive, semi-permanent cured foamed cementitious cover layer over deicing salt which is stored outdoors in large bulk mounds or piles and a salt pile or mound covered with such a layer.
摘要:
A fertilizer comprising at least one layered double hydroxide (LDH) compound containing at least one nutrient anion. In another aspect, the fertilizer comprising at least one clay material mixed with at least one nutrient cation. The fertilizer preferably comprises at least one layered double hydroxide (LDH) compound containing at least one nutrient anion and at least one clay material mixed with at least one nutrient cation. Methods for treating soil, for manufacturing the fertilizer and for enhancing plant growth are also described, as are soil conditioning agents and soil-less culture media.
摘要:
A method using microelements in natural minerals for changing property of a material provides basic materials of Granite and Magnet to mix with other natural minerals of Zeolite, Light stone, Malachit, and limestone, a metal of Silver, and other materials of Coal and Charcoal as a new material. The mixed ingredients in the new material can be arranged to have different mixed proportions according to the purpose, aspect, and function for changing property of the treated material. An ideal mixing proportion for the new material is that 70∼80% weight fraction of Granite, 10∼15% weight fraction of Magnet, 6∼8% weight fraction of Charcoal, 3∼10% weight fraction of Zeolite, 0∼3% weight fraction of Silver, and 0∼2% weight fraction of Coal. Specifically, the most ideal mixing proportion thereof is 75% weight fraction of Granite, 12% weight fraction of Magnet, 6% weight fraction of Charcoal, 4% weight fraction of Zeolite, 2% weight fraction of Silver, and 1% weight fraction of Coal.