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38results about How to "Solve ecological problems" patented technology

Composite ecological bank protecting structure and construction method thereof

The invention relates to a composite ecological bank protecting structure and a construction method thereof. The composite ecological bank protecting structure comprises a low-water-level area bank protecting unit, a normal-water-level area bank protecting unit, a flood-stage area bank protecting unit and a landscape accessory structure arranged on the flood-stage area bank protecting unit in a section mode and used for viewing, the low-water-level area bank protecting unit comprises a rubble slope base and a hollow concrete block, and the normal-water-level area bank protecting unit comprisesa Reynolds protecting cushion layer, an ecological buffering tank, a clean water wetland and a water collecting dark canal; and the bottom of the water collecting dark canal communicates with the bottom of the ecological buffering tank through a communicating pipe, and the flood-stage area bank protecting unit comprises ecological grassland, a drainage ditch and a seepage dam. According to the different characteristics of a river bank in each area, the flood control, ecology and landscape function of the river bank are organically combined, the problems of poor ecological and landscape effectof a traditional bank are solved, and the ecosystem and bank protecting stability of a river bank belt are improved.
Owner:BEIJING ORIENT LANDSCAPE

Method for preparing carbon-based mineralized active fertilizer

InactiveCN105503483AEnhance activity and network and abilityAvoid churnOrganic fertilisersFertilizer mixturesCarbonationOrganic acid
The invention discloses a method for preparing a carbon-based mineralized active fertilizer. The method includes the steps that forestry and agricultural residues and woody brown coal biomass serve as basic materials, the basic materials and a catalyst formed by mixing and blending powdered rock phosphate, pumice stones, serpentine, medical stone and bentonite are crushed respectively, mixed according to a certain proportion for pelleting and then placed into a carbonation reaction kettle for a reaction, output materials are cooled and then crushed again, wood vinegar, a biological agent and humic acid are added, stirred and mixed, and the carbon-based mineralized active fertilizer is obtained through pelleting. The carbon-based mineralized active fertilizer prepared through a simple and effective method is environmentally friendly, microcellular structures are increased by 20% and above compared with traditional charcoal, the fertilizer contains richer nitrogen, phosphorus, potassium and medium trace elements compared with the charcoal obtained just through biomass, the total quantity of nitrogen, phosphorus and potassium available to plants is increased by 15-30%, the total content of N-P-K is larger than or equal to 10% and above, the content of organic matter is larger than or equal to 36%, the fertilizer contains rich organic acid, the fertilizer consumption can be lowered, and fertilizer efficiency can be improved.
Owner:YUNNAN TOBACCO CO LTD KUNMING BRANCH +1

Construction method and structure of wind-prevention and sand fixation brick array

InactiveCN103147433AIncrease the probability of natural survivalLow input costClimate change adaptationReceptacle cultivationGround contactPrevailing winds
The invention discloses a construction method and structure of a wind-prevention and sand fixation brick array. According to the annul prevailing wind direction and the maximal wind speed of a desert in the area to be subjected to wind prevention and sand fixation, cuboid clay bricks taking clay as a main material are made, the clay content of each brick is not lower than 70% of the total size of the brick, a plurality of vertical through holes are formed in each brick along a height direction, the clay bricks are paved on the surface of a sand field in a staggered configuration manner to form a multi-row multi-line brick array, the length direction of each brick is rightly opposite to the annular prevailing wind direction of the area, the maximal distance of two adjacent bricks is not more than 7 times the length of each brick, the sum of the ground contact area of the bricks is not more than 50% of the area of the covered sand field, and the minimal value of the width of the brick array is 1.2 times more than the maximal wind speed. According to the construction method and structure disclosed by the invention, by means of paving the sand field with the clay brick array, an effective wind prevention and sand fixation effect is achieved, the local ecological and soil environment in a desert area can be further improved, and a role of promoting the increase of the natural growth of plants in the desert region is played.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY +1

Method for producing algae-derived saccharide with coupling and for purifying secondary tail water or sludge supernate

The invention discloses a method for producing algae-derived saccharide with coupling and for purifying secondary tail water or sludge supernate. The method comprises the following steps: 1) enablingsecondary tail water or sludge supernate to flow into a reactor A, and removing nitrogen and phosphorus in water by utilizing microalgae; 2) filtering the effluent of the reactor A, discharging the filtered effluent, discharging the concentrated high-concentration algae liquid into a reactor B, and enabling a proper amount of high-concentration algae liquid to flow back to the reactor A when the biomass of algae in the reactor A is insufficient; 3) supplementing nutrients and trace elements into the reactor B, and adding a photosynthesis promoter and a metabolic disruptor to promote the increase of saccharide; and 4) after the culture is finished, performing filtering or centrifuging to form a high-concentration algae solution, and performing drying to obtain the algae powder. The method combines the water quality improvement of the secondary tail water or the sludge supernate with the production of algae-derived saccharide, greatly reduces nitrogen and phosphorus in the effluent, alsosolves the problem of supply of a large amount of biomass in the production of the algae-derived saccharide, and effectively reduces the culture cost.
Owner:EAST CHINA NORMAL UNIV

Fabric made of high polymer material

The invention provides high polymer fabric made of a high polymer material. The fabric is prepared through following preparation processes: A, polyester fibers, bamboo fibers and cuprammonium fibers are subjected to melting granulation, then air-jet texturing filaments are spun and woven, and grey fabric is obtained; B, the grey fabric is put in a finishing liquid for dipping, dried and cooled, and finished fabric product is obtained, wherein the finishing liquidis prepared fromcomponents as follows: 12-20 g / L of titanium dioxide, 18-32 g / L of an acrylate binder, 1-3 g / L of glycerin, 3-4 g / L of a flame retardant, 1-2 g / L of alkyl polyoxyethylene ether succinatesulfonate, 1-2.5 g / L of tribenzylpolyoxyethylenephenol ether, 8-15 g / L of cetyl sodium sulfate and 1.5-3 g / L of an antibacterial agent,the natural antibacterial agent is a plant extract prepared from cudweed,floschrysanthemi, folium artemisiaeargyi, fructusforsythiae andherbahouttuyniae in a mass ratio being (1-2):(1-3):(1-3):(1-2):(1-1.5) through mixed extraction, and density of the plant extract is 1-1.5 g / ml. The pure-natural and non-toxic antibacterial extract is utilized to perform antibacterialtreatment on the fabric, so that the antibacterial effect is realized, the ecological problem in the prior art is solved very well, and energy-saving and environment-friendly effects are realized.
Owner:QINGDAO CHENYUN E COMMERCE CO LTD

Drainage basin ecological scheduling method based on two-layer structure

InactiveCN110334456ARealize balanced scheduling and managementConducive to controlGeneral water supply conservationHydraulic engineering apparatusControl modelsStreamflow
The invention discloses a drainage basin ecological scheduling method based on a two-layer structure, and the method comprises the following steps: S1, building a target region water volume allocationgeneral control model, i.e., a first-layer structure, according to a water demand, a water conservancy project, climate data, unconventional water source utilization data, underground water development data and underlying surface data; S2, adjusting the discharge flow of the water conservancy project according to the ecological water and the reservoir capacity requirement of the water conservancyproject, and then a water conservancy project ecological scheduling model, namely a second-layer structure, is established; and S3, taking the water quantity allocation quantity and the water quantity balance of the first-layer structure as constraint conditions, taking the maximum water supply quantity in the second-layer structure as a target function of drainage basin ecological scheduling, and obtaining a drainage basin ecological scheduling scheme by adopting a particle swarm algorithm. The method is beneficial to control of water resources by the water conservancy project, the comprehensive utilization efficiency of the basin water resources is conveniently improved, and then the economic benefits and ecological benefits of the water conservancy project are improved.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Greenhouse gas treatment device used for agricultural straw incineration

The invention discloses a greenhouse gas treatment device used for agricultural straw incineration. The greenhouse gas treatment device comprises an incinerator, an ash accumulating box, a filter water tank and a water storage tank; a supporting box is welded between the incinerator and the ash accumulating box, a drawing ash accumulating case capable of being drawn is arranged in the middle of the ash accumulating box, and a smoke discharging pipe is connected between the middle of the top end of the incinerator and the middle of the top end of the water storage tank; a filter device is welded between the water storage tank and the filter water tank, a detachable filter case is connected to the interior of the filter device in a clamped mode, and an activated carbon layer and a filter screen are arranged in the detachable filter box; and the bottom end of the right side of the filter water tank is connected to a water pump protective cover through fixed screws, and the water pump protective cover is fixedly connected to a water pump through bolts. According to the greenhouse gas treatment device, the incinerator is installed to burn the agricultural straws, when the incineration is carried out, a burning smoke collecting device and an ash burning filtering device are installed, so that the aim of preventing the environment from being polluted is achieved; and the device is novel in structure, simple to operate and practical in function.
Owner:GUIZHOU UNIV

Underground cut-off wall with adjustable combined well gate

InactiveCN113404072ASolve ecological problemsSolve the problem of not being able to excrete downstreamFoundation engineeringStructural engineeringMechanical engineering
The invention discloses an underground cut-off wall with an adjustable combined well gate. The underground cut-off wall comprises a cut-off wall main body, and the combined well gate is arranged on the cut-off wall main body; the combined well gate comprises an outer shell, an air bag arranged in the outer shell, an inner support arranged in the air bag and an inflation and exhaust pipe communicating with the air bag, and an overflowing hole is formed in the outer shell; and the inflation and exhaust pipe is arranged in the outer shell, and the air bag is arranged on the outer side of the middle of the inflation and exhaust pipe and connected with the outside of the inflation and exhaust pipe in a sealed mode. The air bag controls opening and closing of a water passing hole, control is convenient and reliable, stability is high, the service life is long, all the water passing hole can be pulled out of the outer shell, and replacement, overhaul and operation management are convenient. All permeable stratums can pass through flow holes, the water passing efficiency is high, the drainage amount is large, construction can be conducted together with grooving of the concrete cut-off wall, construction is convenient, and the wall is worthy of being vigorously popularized.
Owner:辽宁省水利水电勘测设计研究院有限责任公司

Sand solidification agent prepared from xanthan gum in fracturing flow-back fluid of oil and gas field as well as preparation method and application of sand solidification agent

The invention discloses a sand solidification agent prepared from xanthan gum in fracturing flow-back fluid of oil and gas field as well as a preparation method and application of sand solidification agent. The preparation method comprises the following steps: 1) adding a demulsification flocculant into the oil and gas field fracturing flow-back fluid, mixing and stirring for 15-25 minutes, standing for 2-3 hours, filtering, then adding a peroxidant and a catalyst, and stirring and reacting for 3-4 hours to obtain a pretreated oil and gas field fracturing flow-back fluid; and 2) adding a proper amount of modifier into the oil and gas field fracturing flow-back fluid pretreated in the step 1) to obtain the sand solidification agent prepared from the oil and gas field fracturing flow-back fluid. According to the method, after the oil and gas field fracturing flow-back fluid is pretreated, humic acid and xanthan gum are added, the oil and gas field fracturing flow-back fluid is prepared into the sand solidification agent, and by means of the method, the problem that the oil and gas field fracturing flow-back fluid is difficult to treat can be solved, the environment can be protected, water resources can be saved, and the problems of land desertification, soil improvement and the like can be solved.
Owner:SHAANXI UNIV OF SCI & TECH
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