35results about How to "Alleviate the pressure of shortage" patented technology

The invention discloses an urban miniature underground reservoir. The underground reservoir is composed of multiple water storage ponds which are buried underground and connected with municipal administration rainwater drainage pipelines, and the miniature reservoir is located below urban road auxiliary roads and green belts. Rainwater on the roads and the peripheries of the roads can flow into the reservoir through drainage pipes, and when it rains, the rainwater can flow into the miniature reservoir through the drainage pipes to be stored; as tiny holes are formed within the range above the one fourth to one third portion of the side face of the reservoir, water in the miniature reservoir can slowly permeate into a foundation soil body to supplement underground water and improve the underground water environment. The invention further discloses a construction method for the miniature underground reservoir. The miniature underground reservoir can relieve pressure of the municipal administration rainwater drainage pipelines, improve the municipal water use capacity, supplement the underground water and improve the underground water environment, and therefore the miniature underground reservoir has large social benefits and high ecological value.

The invention discloses a coal cinder powder magnesium oxysulfate cement stable recycled concrete aggregate. The aggregate is prepared by evenly mixing the following ingredients in percentage by mass:93-97% of recycled concrete aggregate, 1.56-3.12% of magnesium oxide, 0.57-1.90% of coal cinder powder, 0.76-1.80% of magnesium sulfate and 0.09-0.18% of a water-resistant additive. The invention further discloses a preparation method of the coal cinder powder magnesium oxysulfate cement stable recycled concrete aggregate. The coal cinder powder magnesium oxysulfate cement stable recycled concrete aggregate has the characteristics of convenient material taking, energy saving and environmental protection, and is a novel building material; the aggregate utilizes solid wastes such as waste concrete, coal cinder and bischofite in large quantity, the environmental protection and land occupying problems caused by waste concrete and coal cinder are solved, increasingly scarce sandstone and cement resources are relieved, the applied range of magnesium oxysulfate cement is expanded, and the aggregate has a far-reaching impact and a broad application prospect; and the aggregate does not have lateral confinement compressive strength, which meets the standard requirements, and the construction progress can be accelerated.

The invention discloses a sewage reuse system and a sewage treatment method. The sewage reuse system comprises a sewage treatment system and a reclaimed water reuse system, wherein the sewage treatment system comprises a primary water treatment system and a secondary water treatment system, the primary water treatment system is used for treating domestic produced sewage to form wastewater and reuse water, and the secondary water treatment system is used for treating the reuse water to form residential domestic water and reclaimed water; and the reclaimed water reuse system is used for conveying treated waters from the sewage treatment system to different use occasions according to the quality of waters. The treatment method comprises the following steps: treating the domestic production sewage by the primary treatment system to form wastewater and reuse water, and treating the reuse water to obtain domestic water consumption standard reaching water used as the residential domestic water and domestic water consumption standard unreaching water used as the reclaimed water. The above technical scheme alleviates the shortage of water resource and the pressure of pollution discharge and environmental protection.

The invention discloses a coal slag powder chlorine-oxygen-magnesium cement stable regenerated concrete aggregate, which comprises the following components in percentage by mass: 93 to 97 percent of arecycled concrete aggregate, 0.9 to 2.6 percent of a magnesium oxide, 0.4 to 1.5 percent of a coal slag powder, 1.2 to 2.9 percent of a magnesium chloride, and 0.3 to 0.5 percent of a water-resistantadditive. The preparation method of the coal slag powder chlorine-oxygen-magnesium cement stable regenerated concrete aggregate also is disclosed. The coal slag powder chlorine-oxygen-magnesium cement stable regenerated concrete aggregate of the invention has the characteristics of convenient material collection, energy conservation and environmental protection, and is a novel building material;a large amount of solid waste, such as waste concrete, coal slag, and brucite, can be used to solve the problems of environmental protection and occupation of land caused by waste concrete and coal cinders, as well as to relieve increasing shortage of sand and gravel, and cement resources, the application range of the chlorine-oxygen-magnesium cement is expanded, has far-reaching influence and wide application prospect; the unconfined compressive strength meets the specification requirement, and the construction progress can be accelerated.

The invention relates to an ultralow-frequency rubber tapping method for rubber trees, which is based on a traditional semi-spiral rubber tapping mode. A novel rubber tapping method for the rubber trees is established by changing the rubber tapping frequency and matching with a proper ethephon stimulation method, rubber tapping thickness and rubber tapping depth. By applying the method, the dry rubber content is increased, the bark consumption of the rubber trees is saved, the great reduction of the dry rubber yield caused by the reduction of the rubber tapping frequency is effectively controlled, the per capita dry rubber yield is increased, the income of rubber workers is increased, the rubber worker team is stabilized, the pressure of shortage of the rubber workers is effectively relieved, and the method has good production significance and popularization prospects. According to the ultra-low-frequency rubber tapping method for the rubber trees, the frequency adopted in the rubber tapping method is generally low-frequency rubber tapping such as three-day one-time cutting or four-day one-time cutting, one rubber worker is divided into three tree positions or four tree positions, the income of the rubber worker is in direct proportion to the rubber yield obtained through rubber tapping, and the rubber worker income is increased, and the rubber worker team is stabilized.

The energy-saving saline-alkaline water multi-stage freezing desalination device and process, and the device comprises a pretreatment system and a freezing system, saline-alkaline water is treated by the pretreatment system and then enters the freezing system to be cooled and desalted, and the energy-saving saline-alkaline water multi-stage freezing desalination device is characterized in that: the pretreatment system comprises a water storage tank, a high-density sedimentation tank, a V-shaped filter tank and a multi-medium filter; the water storage tank is connected with a water inlet of the high-density sedimentation tank through a pipeline, a water outlet of the high-density sedimentation tank is connected with a water inlet of the V-shaped filter tank through a pipeline, a water outlet of the V-shaped filter tank is connected with a water inlet of the multi-medium filter through a pipeline, and a water outlet of the multi-medium filter is connected with the freezing system through a pipeline; a zero-pollution saline-alkali water purification process is achieved in the whole process, safety and environmental protection are achieved, the working efficiency is high, the pressure of fresh water resource shortage is greatly relieved, and a guarantee is provided for the life of people.

The present invention discloses a complete pellet feed for fattening sheep, a preparation method of the complete pellet feed for fattening the sheep and a method for feeding the sheep, and relates tothe technical field of animal feeds. The complete pellet feed for fattening the sheep comprises the following raw materials: 0%-10.7% of corn stalks, 0%-9.3% of alfalfa hay, 10%-30% of agriophyllum squarrosum stalks, 38%-42% of corn, 5%-6% of wheat bran, 10%-11% of soybean meal, 6%-7% of cottonseed meal, 2%-3% of molasses, 0.8%-1.2% of stone powder, 0.5%-1% of edible salt, 1%-1.5% of baking soda and 0.8%-1.2% of a premix. The complete pellet feed for fattening the sheep is high in nutritional value and feed utilization rate, can improve sheep production performance and sheep meat quality, increases economic benefits of herdsmen, relieves pressure of forage shortage, and also has advantages of safety and harmlessness.

The invention relates to a method for preparing a cement kiln fuel by using a lignite and biomass co-pyrolysis product, and the method comprises the following steps: 1) respectively drying lignite andbiomass and respectively crushing the lignite and the biomass to obtain a lignite sample and a biomass sample; 2) mixing the biomass sample and the lignite sample evenly according to the mass ratio of 3: 7 to 4: 6, and performing oxygen-free pyrolysis on the mixed sample; 3) obtaining pyrolysis products after pyrolysis, wherein the pyrolysis products comprise a pyrolysis gas, pyrolysis tar and pyrolysis semi-coke; and 4) mixing the pyrolysis semi-coke with the lignite to obtain the cement kiln combustion fuel. The method has the advantages of simple operation and low cost, uses low-grade coalas a raw material to prepare the excellent cement kiln substitute fuel, and opens a new energy supply idea for the cement industry; at the same time, the utilization efficiency of biomass resources and lignite resources is improved, and the comprehensive and clean utilization of all solid, liquid and gas resources of the products is realized.

The invention discloses a rainwater collection device for a municipal garden based on a rainwater recycling technology. The rainwater collection device comprises an adjusting lake, wherein a drainageslope sleeves the edge of the top end of the adjusting lake; a plane slope sleeves the outer side of the drainage slope; a slope lawn is arranged on the drainage slope; a garden green plant zone is arranged on the plane slope; a road body is arranged on one side of the plane slope; a water collection device is embedded into the road body; a plurality of watering disc mechanisms are uniformly arranged above a water supply pipe; water in the adjusting lake is pumped through an irrigation pump, so that lake water is injected into the water supply pipe through a first water pipe, and then is injected into the watering disc mechanisms through vertical pipes; finally, the slope lawn and rhizomes of the garden green plant zone are directly irrigated through the watering disc mechanisms, so that the collection and recycling of rainwater are realized; waterlogging caused by heavy rain can be adjusted and a city is prevented from being submerged by the rainwater; and urban garden vegetation is irrigated by utilizing the rainwater, so that the consumption of a water source can be effectively reduced, rainwater resources are sufficiently utilized and the pressure of water source shortage is alleviated.

The invention belongs to the technology of comprehensive recycling of complex secondary nonferrous metal resources, and particularly relates to an enrichment and separation method of cobalt in waste circuit board multi-metal hybrid resources. The method includes the steps that firstly, a multi-metal complex mixture containing cobalt is obtained from a waste circuit board through smashing and sorting; a collecting agent is added into the multi-metal complex mixture; the prepared multi-metal complex mixture is placed in a graphite crucible of a vacuum furnace; after the metal mixture is completely melted, trace enrichment reagent niobium or boron is added to regulate the separation rate of liquid copper and liquid iron; a liquid copper and liquid iron mixed melt is a separation melt, the upper layer of the separation melt is the liquid iron, and the lower layer of the separation melt is the liquid copper; and the liquid iron gathering cobalt on the upper layer is poured out, and cobalt is separated from the multi-metal complex mixture of the waste circuit board to be recycled. The method is simple and easy to implement and has the characteristics of being low in cost, comprehensive, efficient, free of pollution and the like.

The invention relates to a memory management method and device, electronic equipment and a storage medium, and the method comprises the steps: after data cached in a current ION memory is used, judging whether the total amount of the ION memory occupied by an ION pool is greater than or equal to a memory release threshold value or not; and if the total amount of the ION memory occupied by the ION pool is greater than or equal to the memory release threshold, releasing the current ION memory to an operating system. Therefore, a series of problems caused by excessive memory occupation of the ION pool can be effectively prevented, the pressure of system memory shortage is relieved, meanwhile, the memory is actively released to the operating system, and delay caused by waiting for memory recovery is also avoided.

The invention discloses a preparation method of a material for adsorption removal of organic matter and ammonia nitrogen. The preparation method comprises the following steps that (1) clinoptilolite is selected from natural zeolite, cleaned and elutriated through distilled water for three times; (2) stirring is conducted for 30 min in a high-speed stirring machine, and then precipitation is conducted; (3) upper turbid liquid is removed through a sieve net of 100 meshes; (4) the cleaned clinoptilolite is dried for 24 h in a drying oven at 100 DEG C; (5) a material A is prepared; (6) a materialB is prepared; (7) a material C is prepared; (8) a material D is prepared; (9) a material E is prepared; (10) a material F is prepared; (11) a material G is prepared; (12) a material H is prepared; (13) a material I is prepared; (14) a material J is prepared; and (15) a final adsorption material K is prepared. The natural zeolite and coal ash which are low in cost and easy to obtain are taken as basic raw materials, the natural zeolite is modified by NaCl and then mixed with a 4A molecular sieve prepared from the coal ash according to a certain ratio, thus the novel adsorption material is obtained, and the material has a great organic matter and ammonia nitrogen adsorption effect.

The invention belongs to the technology for comprehensive recycling of complex secondary non-ferrous metal resources, and particularly relates to an enrichment and separation method for chromium elements in a discarded circuit board multi-metal mixed resource. The method includes the steps that firstly, after discarded circuit boards are crushed and separated, a multi-metal complex mixture containing the chromium elements is obtained; a trapping agent is added into the multi-metal complex mixture, and the prepared multi-metal complex mixture is placed in a graphite crucible of a vacuum furnace; after the multi-metal complex mixture is completely melted, a trace amount of enrichment reagent phosphorus is added, the separation rate of liquid copper and liquid iron is adjusted, and the chromium elements are enriched into a liquid iron phase so that separated melt with the upper layer being the liquid iron and the lower layer being the liquid copper can be formed; and the upper layer liquid iron with the trapped chromium elements is poured out. Accordingly, the chromium elements are separated from the multi-metal complex mixture of the discarded circuit boards and are further recycled. The method is simple and easy to implement and has the characteristics of being low in cost, comprehensive, efficient, free of pollution and the like.