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A farmland type ecological buffer zone structure
ActiveCN224395477UImprove self-cleaning abilityincrease diversityBreakwatersWater contaminantsBuffer stripEnvironmental resource management
The utility model provides a kind of farmland type ecological buffer zone structure, it is related to agricultural ecological environment management technical field, including land buffer area one, ecological regulation pond, land buffer area two and concave green land, land buffer area one, ecological regulation pond, land buffer area two and concave green land are sequentially distributed from farmland side to river embankment side, land buffer area one and land buffer area two are planted with arbor shrub and grass flower mat, the ecological regulation pond is sequentially provided with impermeable layer, adsorption layer and plant layer from bottom to top, the concave green land is laid with buffer base, the concave green land is planted with herbaceous plant and shrub. This structure effectively intercepts farmland non-point source pollution, reduces river pollutant, helps to strengthen river self-purification capacity, promotes aquatic animal and plant diversity development, and guarantees ecological benefit to play well.
Owner:BEIJING ZHIHE WATER ENVIRONMENTAL TECH CO LTD
Modified silicon-carbon composite material, negative electrode sheet, and battery
This invention discloses a modified silicon-carbon composite material, an anode sheet, and a battery. The modified silicon-carbon composite material includes porous carbon, ring-patterned graphite nanoparticles, and silicon nanoparticles. The silicon nanoparticles are located within the pores of the porous carbon, and / or, within the pores of the ring-patterned graphite nanoparticles, and / or, in the pores between adjacent ring-patterned graphite nanoparticles. In the provided modified silicon-carbon anode material, the introduction of ring-patterned graphite nanoparticles into the porous carbon matrix improves conductivity through the ordered structure of the ring-patterned graphite nanoparticles, enhances ion conduction through the porous structure, and allows silicon to be deposited in the pores of the ring-patterned graphite nanoparticles, suppressing Si expansion and maximizing silicon capacity, thereby improving the conductivity, rate performance, and cycle performance of the silicon-carbon anode.
Owner:LANXI ZHIDE ADVANCED MATERIALS CO LTD
A method for preparing lithium perfluoroalkyl disulfonylimide
PendingCN122668089ASolve technical problems requiring separation and purificationAvoid hydrolysis side reactions
This invention discloses a method for preparing lithium perfluoroalkyl disulfonylimide, belonging to the field of chemical synthesis technology. The method involves cooling an acetonitrile solution containing triethylenetetramine formate ionic liquid to -50°C to -30°C, then introducing ammonia gas, followed by the sequential addition of anhydrous lithium hydroxide, triethylsilane, and 1-hydroxybenzotriazole, and then adding perfluoroalkyl disulfonyl fluoride as shown in Formula 1. A two-stage heating reaction is then carried out to obtain lithium perfluoroalkyl disulfonylimide as shown in Formula 2. This invention provides a highly selective and simple one-step synthetic route, simultaneously achieving high purity, low moisture content, and high yield of the product, providing strong technical support for the efficient industrial production and high-end electrochemical applications of lithium perfluoroalkyl disulfonylimide.
Owner:SHIJIAZHUANG SAN TAI CHEM CO LTD
PAC adding device for sludge conditioning
ActiveCN224091775UImplement pre-mixingDisperse fastSludge treatmentTransportation and packagingSludgeProcess engineering
The utility model relates to the technical field of sewage treatment, in particular to a PAC adding device for sludge conditioning, which comprises a PAC storage tank and a PAC adding tank. The PAC storage tank is connected with a PAC adding tank, a second conveying pipe is arranged at the bottom of the PAC adding tank and extends to the sludge conditioning pool, a second conveying pump is arranged on the second conveying pipe, and the second conveying pipe is connected with a third conveying pipe at the rear end of the second conveying pump; water in the sludge conditioning tank is extracted by the third conveying pipe and is premixed with PAC in the second conveying pipe; a medicine adding pipe is arranged at the tail end of the second conveying pipe, and a horizontal arc-shaped bent pipe section is arranged at the tail end of the medicine adding pipe. According to the utility model, on one hand, the premixing of PAC can be realized, and on the other hand, the added PAC can be quickly dispersed in water, so that the PAC can quickly and efficiently play a role.
Owner:ZHENGZHOU ZHENGDONG NEW DISTRICT WATER SERVICES CO LTD
A foldable multi-stage telescopic fire ladder
Owner:YUANMOU COUNTY FIRE RESCUE BRIGADE (YUANMOU COUNTY FIRE RESCUE BUREAU)
Method for peeling cyperus esculentus
PendingCN121991756AImprove loosening efficiencyImprove permeabilityFatty-oils/fats productionFood treatmentPolymer scienceFood grade
The invention belongs to the technical field of grain and oil crop processing, and relates to a cyperus esculentus peeling method, which comprises: (1) carrying out heat treatment on cyperus esculentus by using hot water or water vapor; and (2) carrying out alkali liquor soaking treatment on the cyperus esculentus subjected to heat treatment. According to the method disclosed by the invention, through the step of adding hot water or water vapor to treat the cyperus esculentus, wax on the epidermis of the cyperus esculentus can be softened, a wax barrier can be destroyed, alkali liquor can permeate into the epidermis more easily and can play a role more efficiently, and the loosening efficiency of the epidermis of the cyperus esculentus is improved; after the cyperus esculentus is subjected to subsequent treatment of alkali liquor soaking, the technical effect of almost 100% peeling can be achieved; the mandulapalka peeling machine is suitable for mandulapalka of different producing areas and varieties, is not influenced by the sizes and shapes of tubers, and can realize the effect of completely peeling the outer skins of the mandulapalka in batches; the peeled cyperus esculentus is treated by a food-grade citric acid solution, so that the color and flavor of the cyperus esculentus are stabilized.
Owner:ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION