63 results about "Salt reduction" patented technology

The invention discloses a silicon nano-material with a three-dimensional cross-linked structure as well as a preparation method and application thereof. The silicon nano-material with the three-dimensional cross-linked structure is extracted from silicate minerals by adopting a fused salt reduction method; specifically, the preparation method comprises the following steps: uniformly mixing magnesium powder or aluminum powder, aluminum chloride and a silicon dioxide precursor formed by carrying out hydrothermal acidification treatment and derivatization on natural silicate minerals; carrying out sealed fused salt reduction reaction in a reaction kettle to prepare the silicon nano-material with the three-dimensional cross-linked structure. The method disclosed by the invention is simple andefficient and is easy to prepare; prepared silicon particles have good characteristics of high purity, small size, high specific capacity and the like, and have a wide application prospect in the energy-storage fields including electrode materials of ion batteries and the like.

The invention provides a method for rapidly and ecologically treating coastal beach sludge and belongs to the technical field of coast enclosure for field, port engineering, beach development and the like. The method includes the following steps that firstly, a cofferdam is established and filled with the sludge at a certain height in a blowing manner, and straw blankets are laid on the sludge and connected with a vacuum device through pipes; secondly, the position, on the upper layer of the straw blankets, of the cofferdam is continuously filled with the sludge in a blowing manner to the assigned height; thirdly, crushed straw is added to the sludge on the upper layer of the straw blankets and stirred to form a straw and sludge mixture; fourthly, straw drainage bodies are inserted in the cofferdam; fifthly, the drainage bodies are sleeved with plastic waterproof pile caps; sixthly, a fresh water layer is formed on the surface of the mixture; seventhly, vacuum treatment is performed; and eighthly, the sixth step and the seventh step are repeated so as to finish rapid ecological treatment. By the adoption of the method, the good water permeability of the straw, the straw and sludge mixture and the like is used, and under the assistance of vacuum negative pressure, the salt-leaching and solidification processes of the sludge are accelerated; and meanwhile, the straw can be degraded to improve fertility and the purposes of sludge solidification, salt reduction and fertility improvement are achieved at a time.

Fermented bean curds are a traditional soybean fermented food and seasoning in China, and the salt content of traditional fermented bean curds is generally 8%-16%. In recent years, low-salinity dietsare beneficial to health and becomes a consensus of the public, and low-salinity development of traditional fermented foods becomes a social demand. Aiming at the problems of high salt content, potential safety risks after salt reduction and the like of the traditional fermented bean curds, the invention provides a method for synergistically fermenting flowery low-salt fermented bean curds by multifunctional bacteria, so that the fermented bean curd products are low in salt content, palatable in saltiness, mellow and rich in fragrance and outstanding in flowery flavor; the fermented bean curdscontain functional components such as Monacolin K and gamma-aminobutyric acid (GABA), so that the flavor and quality of the fermented bean curds are effectively improved, and the upgrading and updating of the traditional fermented bean curd industry are guided.

The invention discloses a method for preparing low iron anhydrous sodium sulfide by one-step Glauber's salt reduction with coke oven gas, using waste gas of a coke enterprise-coke oven gas as one of the raw materials, and adopting gas reduction to make one-step Glauber's salt reduction to prepare sodium sulfide; further determining an industrial method for producing 3 kinds of low iron anhydrous sodium sulfides in GB10500-2000 with coke oven gas and Glauber's salt as raw materials; determining a low temperature iron-free catalyst whose conversion ratio can be above 90% at lower temperature and solving the difficulty in coking and sintering; not using the other energy sources so as to save energy sources.

The invention relates to a method for planting a nursery stock in heavy saline-alkaline soil in an arid region. According to the method, a furrow is opened in the saline-alkaline soil, planting pits are dug in the furrow, haloduric tree seeds is chosen, the nursery stock is pruned and covered to resist salt and drought; in the early stage, drip irrigation with an exceeding amount and micro-region fertile soil are adopted; subsequently, through a nutrient method of combining planting through a haloduric green fertilizer used in the furrow and the micro-region fertile soil, external substrate conditions for the growth of root systems are created from little one to much one and from light one to deep one, and thus the purpose that as the plant grows, the salt reduction and soil improvement are conducted are achieved. According to the method for planting the nursery stock in the heavy saline-alkaline soil in the arid region, a short-term and long-term effect are both taken into consideration, the method is simple and feasible, saline alkali tolerant nursery stock protection, drip irrigation and water conservation, biological green manure and space-time dynamic micro-region fertile soil technologies are integrated, and thus a technological support is provided for sustainable development of greening and improvement of the saline-alkaline soil in the arid region.

A high energy processed biomass / coal blended compact aggregate composition made with a blending sub-system from a processed organic-carbon-containing feedstock made with a beneficiation sub-system and high energy coal is described. Renewable biomass feedstock passed through a beneficiation sub-system to reduce water content to below at least 20 wt % and an intracellular water-soluble salt reduction of at least 60% from that of unprocessed organic-carbon-containing feedstock on a dry basis. The processed feedstock is blended with sized high energy coal in a blending sub-system to form a blended aggregate that comprises at least 10 wt % of a coal having an energy density of at least 21 MMBTU / ton (24 GJ / MT) and at least 10 wt % of a processed biomass comprising a processed organic-carbon-containing feedstock with characteristics that include an energy density of at least 17 MMBTU / ton (19 GJ / MT) and a water-soluble intracellular salt content that is decreased more than 60 wt % on a dry basis for the processed organic-carbon-containing feedstock from that of unprocessed organic-carbon-containing feedstock.

A processed pyrolysis oil composition, a renewable liquid fuel, having a high energy density, low water content and a more neutral pH, and made with an oxygen-starved microwave sub-system from a processed organic-carbon-containing feedstock made with a beneficiation sub-system is described. Renewable biomass feedstock passed through a beneficiation sub-system to reduce water content to below at least 20 wt % and water-soluble salt reduction of at least 60% from that of unprocessed organic-carbon-containing feedstock on a dry basis. The processed feedstock is introduced into a substantially microwave-transparent reaction chamber. A microwave source emits microwaves which are directed through the microwave-transparent wall of the reaction chamber to impinge on the feedstock within the reaction chamber. The microwave source may be rotated relative to the reaction chamber. The feedstock is subjected to microwaves until the desired reaction occurs to produce a liquid processed pyrolysis oil fuel.

The invention relates to the technical field of controlled-release fertilizer and in particular relates to efficient controlled-release fertilizer applicable to saline-alkali soil and a preparation method thereof. The controlled-release fertilizer is prepared from the following raw materials in parts by mass: 10 to 15 parts of urea, 12 to 20 parts of potassium dihydrogen phosphate, 25 to 35 partsof tannic acid, 15 to 20 parts of ammonium humate, 20 to 35 parts of composted livestock manure, 100 to 120 parts of straw ash, 5 to 10 parts of a starch-based composite film, 5 to 12 parts of PAM (Polyacrylamide) and 20 to 25 parts of element fertilizer. The preparation method comprises the following steps: after sufficiently and uniformly mixing the urea, the ammonium humate, the potassium dihydrogen phosphate, the tannic acid, and the element fertilizer, drying and granulating; after cooling, carrying out enveloping treatment with the starch-based composite film; then mixing with the composted livestock manure, the straw ash and the PAM, which are sufficiently fermented, so as to obtain the efficient controlled-release fertilizer. According to the efficient controlled-release fertilizer, salt reduction and alkali reduction can be effectively carried out on the applied saline-alkali soil under the condition that microelements, necessary for growth and development of plants, are ensured to be contained. The problems of poor controlled-release function, low efficiency and the like of common fertilizer are solved; the fertilizer is not remained in the soil and the effect of effectively improving the saline-alkali soil can be realized.

Systems and methods for producing processed organic-carbon-containing feedstock from an unprocessed carbon-containing feedstock are described. Unprocessed feedstock is introduced into and transported through at least one reaction chamber. The reaction chamber is configured for each feedstock to produce processed feedstock having a water-soluble intracellular salt reduction of at least 50 percent from that of unprocessed organic-carbon-containing feedstock and a water content of less than 40 percent.