152results about How to "Improve ecological effect" patented technology

The invention discloses biomass base structure flame retardant polyol and a preparation method and an application thereof. An intermediate is obtained by utilizing the Mannich reaction of biomass anacardol, diethanolamine, melamine or urea, and formaldehyde, and the biomass base structure flame retardant polyol can be prepared through further alkoxylation with epoxy ethane and epoxy propane, with a hydroxyl value of 200-500mg / gKOH, moisture being less than or equal to 1.0%, and viscosity of 2000-10000mPa.s (25 DEG C), and the biomass base structure flame retardant polyol is applied in polyurethane foam as a polyol component. According to the biomass base structure flame retardant polyol as well as the preparation method and the application, an intermediate process does not need separation, the cost is low, the process is easy, and the prepared polyurethane foam is good in flame retardance, has the advantages that a product does not drip liquid, the shape is kept, the smoke density is low and the like, and can be used in construction, heat preservation and some special fields.

The invention provides the application of trichoderma reesei and sedum plumbizincicola in the remediation of cadmium-polluted farmland soil. The application comprises the following steps of: cutting sedum plumbizincicola seedlings with about 10cm of plant height into soil to be remedied, applying trichoderma reesei FS10-C fermentation liquor or microbial preparation to the rhizosphere of the plant, keeping the soil water content to be 70%wt of the maximum field capacity in the process of remediation, and scissoring the plant along the surface of soil after the plant grows for 60-150 days to complete one remediation process. According to the application, the plant remediation efficiency of the cadmium-polluted farmland soil can be improved; and the sedum plumbizincicola plant remediation efficiency can be improved according to the trichoderma preparation, the biomass of the soil microorganism can be enhanced, the micro-ecological environment of the soil can be improved, and the application is good in ecological efficiency, and suitable for the remediation of the cadmium-polluted farmland soil.

The invention discloses a composite casing pipe restrained reinforced concrete column which is characterized in that a composite casing pipe of the reinforced concrete column (2) is a combined body of a precast active power concrete outer casing pipe (3) and a precast active power concrete inner casing pipe (4). The composite casing pipe restrained reinforced concrete column provided by the invention has the characteristics of convenience in construction, low cost, high bearing force, shock-resistant property, obvious fireproof performance, excellent durability and the like, meanwhile, the composite casing pipe restrained reinforced concrete column can be used for saving resources and energy sources, and conforms to the sustainable development requirement.

The invention discloses a construction method of an ecological revetment for river bank protection. The construction method comprises the following steps of a, paving a gravel material cushion layer;b, paving geotechnical cloth; c, backfilling a soil layer with the depth of 20-30 cm on the geotechnical cloth, and compacting the soil layer; d, constructing the ecological revetment; and e, placingsoil into ecological planting holes of ecological building blocks, and then growing plants. According to the construction method, the ecological building blocks after construction cannot fall off, sothat the overall performance of the whole ecological revetment is improved, and the flood prevention effect, the ecological effect, the landscape effect and the self-cleaning effect of the ecologicalrevetment are enhanced; and meanwhile, accumulated water on the construction site can flow into the inclined surface parts of the ecological building blocks through filter plates used for lapping withthe building blocks, and the water on the inclined surface parts of the ecological building blocks are discharged into the soil through drainage grooves, so that the earthwork of the construction area which is not paved with the ecological building blocks is prevented from being subjected to micro-amplitude sedimentation phenomenon, the flatness of the excavated earthwork is guaranteed, the ecological building blocks can be conveniently and quickly laid, moreover, the ecological building blocks can be quickly replaced, and the service period of the ecological revetment can be prolonged.

The invention relates to a method for synthesizing allantoin. The allantoin is synthesized by taking acid ionic liquid as a catalyst and glyoxylic acid and urea as raw materials. A process is simple, raw materials are bulk chemical raw materials, yield is high, the method is easy to industrially popularize, the yield of allantoin is stable and can reach over 68 percent, and the acid ionic liquid used as the catalyst can be repeatedly used for more than 5 times; and the process is pollution-free and environment-friendly, and has a good ecological effect and social and economic benefits. Through assay determination, the content of the obtained allantoin product is in the range required by the United States Pharmacopeia (USP29), and other indexes of the obtained allantoin product also meet the USP 29.

The invention belongs to the technical field of concrete and particularly relates to a pervious concrete formula and a construction method. According to the formula, the pervious concrete is composed of, by weight, 260-440 parts of cement, 90-150 parts of second-class coal ash, 90-160 parts of slag powder, 1500-1650 parts of broken stone, water, a binding material, a lime concrete reinforcing agent, polycarboxylate superplasticizer, inorganic mineral oxide pigments and an oleoresin top facing agent, wherein the mixing ratio of water to lime is 0.25-0.40, and the mixing ratio of water to the binding material is 0.25-0.40. The binding material is a mixture of cement, second-class coal ash and slag powder with the mixing ratio of 3:1.5:1. The oleoresin top facing agent is acrylic resin.

The invention relates to a compressed air heat-linkage energy-storage system based on a reversible air engine, which comprises a motor generator, the reversible air engine, an air reservoir and an heat insulation water tank, wherein the motor generator is connected with the reversible air engine by a speed reducer, and the reversible air engine is respectively connected with the air reservoir and the heat insulation water tank. At the valley period of power consumption, compressed air is made and stored in the air reservoir, and the released heat is stored in the water; at the peak period of power consumption, the compressed air is utilized to drive the reversible air engine to generate electricity, and the stored heat water is used for heating the compressed air. The reversible air engine integrates a compressor and an engine into a whole body, adopts the technical schemes of tail gas pressure stabilization and timely cylinder variable, eliminates the energy loss taken away by tail gas and the decompression energy loss during the gas inlet and has high energy conversion efficiency. The system can be used for peak clipping and valley filling and emergency standby of an electric power system and also solve the intermittent bottleneck of wind power generation as well as the development and the utilization of the off-peak electrical power at night.

The invention discloses a country distributed domestic sewage treating system and method. The system comprises a sewage collection tank (2), an anaerobic filter tank (1), ecological floating islands (11) and a constructed wetland (12), wherein the sewage collection tank (2) is connected with the anaerobic filter tank (1) through a water feeding pipe (3); the anaerobic filter tank (1) is connected with the constructed wetland (12) through a middle water discharging pipe (10); the ecological floating islands (11) float on the water surface of the constructed wetland (12); the constructed wetland (12) is connected with a water discharging pipe (18); the anaerobic filter tank (1) comprises parts of a sewage outlet (5), a sludge settling zone (6), a water distributing hole plate (4), a sludge suspension zone (7), elastic packing (8), the middle water discharging pipe (10) and an exhaust pipe (9) from bottom to top in sequence. The system and the method have the characteristics that the mixed liquor concentration is improved, the waterpower degree is high, blockage and power consumption are avoided, the operation management is simple and convenient, and the greening effect and the ecological effect are good; the country distributed domestic sewage treating system and method are suitable for popularization and application are facilitated.

The invention relates to a compound repair agent for heavy metal polluted soil which is characterized by being prepared from the following raw materials in percent by weight: 40-55% of charcoal, 15-35% of bone powder and 15-35% of coal ash. By taking agricultural or industrial solid wastes which are wide in source and easy to obtain as a raw material, the compound repair agent is simple in process, sufficient in raw material, low in cost and obvious in application effect, reduces the heavy metal mobility and bioavailability of soil, and can solve the problem of sustainable utilization of heavymetal pollution in farmlands and fields of industrial and mineral industry. The application method is simple, the using process is labor-saving, the physical and chemical properties of soil can be also improved effectively, the fertilizer retaining and water retaining ability of soil is improved, and the compound repair agent is easy to popularize and apply.

The invention discloses an antrodia cinnamomea quick cultivation method. By the adoption of an antrodia cinnamomea mycelia quick growth medium, antrodia cinnamomea is cultivated through a glass bottle or a plastic bag. The growth period is short. The fruiting body yield is high, and economic benefits are remarkable. The cultivation technology that the antrodia cinnamomea does not need cinnamomum kanehirai and fruiting bodies grow on wood is achieved, protection of rare cinnamomum kanehirai resources is facilitated, development of antrodia cinnamomea raw materials in traditional Chinese medicine enterprises is also promoted, and good ecological effects, economic effects and social effects can be brought.

The invention discloses a greenhouse broad bean ultra-early-maturing high-efficiency cultivation method. The harvesting of fresh pods is started from December and is completed till the Labor Day. The method sequentially comprises field management steps of seed soaking, culture of bud seedlings, manual vernalization treatment of bud seedlings, drip irrigation and transplantation under (black) films, erection of sunshade nets, erection of a first layer of thin films, erection of a second layer of thin films, greenhouse internal temperature and humidity regulation and control, etc. The manually vernalized broad bean bud seedlings are transplanted from the end of August to the end of October; by adding covering materials and an under-film drip irrigation system and conducting temperature and humidity regulation and control management, the yield of fresh pods is increased by more than 60 percent relative to the yield of fresh pods cultured in open fields, the applicable planting duration is long and reaches three months, the fresh pod harvesting duration is long and reaches six months, and the production value per mu of freshly eaten broad bean pods per season is more than ten thousand Chinese Yuan; compared with other greenhouse fruits and vegetables, the labor is saved, the cost is reduced, the risk is low, the net benefit is high and the ecological effect is remarkable.

The invention discloses a river-way ecological management system. The river-way ecological management system comprises a river way and revetments, wherein a plurality of ecological biological water treatment systems and rubber retaining dams are arranged on the river way; side concrete layers are arranged on two sides of the river way, and a bottom concrete layer is arranged at the bottom of the river way; a mud collecting channel is formed in the bottom concrete layer; and micro-wetland ecological systems are arranged between the side concrete layers and the revetments and comprise rainwater channels and aquatic plants, and sewage channels are formed in the lower parts of the micro-wetland ecological systems. The invention further discloses a method for managing the river way by virtue of the river-way ecological management system. By virtue of the system and the method, sectional management and combined management are realized, so that the sewage purification efficiency is improved, the treatment period is shortened, the operation flow is simplified, the cost is lowered, and a water ecological environment of the river way is remarkably improved.

The invention discloses a base improvement and ecological rehabilitation method for a windward side embankment. The base improvement and ecological remediation method comprises the following steps: A, area selection; B, slope flattening and ramming; C, ecological concrete preparation, including stirring and mixing river sand, crushed stones, cement, water, blending agents and chemical additives in proportion to prepare ecological concrete; D, improved soil preparation, including mixing minerals and detritus into red soil; E, base improvement and ecological rehabilitation under a normal water level, including paving ecological concrete members; F, base improvement and ecological rehabilitation between the normal water level and a flood level, including paving cast-in-place ecological concrete; G, base improvement and ecological rehabilitation above the flood level, including paving stone, filling concrete holes and stone gaps with soil, and planting vegetation in the concrete holes and the stone gaps; H, base improvement and ecological rehabilitation at the top of the windward side embankment, including paving sandy soil and planting vegetation; and I, maintenance and management. The base improvement and ecological rehabilitation method provided by the invention is convenient to operate and low in investment and operation management cost, realizes multiple effects such as embankment stabilization, landscape greening and pollutant interception, and has important environmental, social and economic benefits.

The invention discloses an organic ecological fertilizer for grapes and a preparation method thereof. The organic ecological fertilizer for grapes is mainly prepared from the following raw materials in parts by weight: 71.9-92.1 parts of inorganic salt fertilizer, 8-12 parts of wine marc, 1-4 parts of antibiotic bacterial fertilizer, 1-4 parts of water retention agent, 0.1-0.5 part of agricultural amino acid, 0.3-0.9 part of boric acid and 0.04-0.15 part of brassinolide. The organic ecological fertilizer for grapes can sufficiently supply nutrients to the grape field and has favorable quality and yield effects on grapes, and the produced grapes are full and have the advantages of sweet mouthfeel and high grape. The organic ecological fertilizer for grapes can enhance the cold resistance, drought resistance and disease resistance of the grapes, and has favorable ecological effect. The fertilizer is released thoroughly, and can supply the nutrients to the grapes, balance the soil nutrients and enhance the quality and yield of the grapes. The preparation method is accessible in raw materials, simple to operate and easy to implement. The prepared special fertilizer has stable and reliable quality, and the nutrient elements can be sufficiently absorbed by the grapes, thereby being beneficial to greatly enhancing the grape yield, wherein the yield growth rate is up to 31.34-42.54%.

The invention relates to nutrition planting soil and a production method. The nutrition planting soil is prepared by mixing and fermenting main materials, auxiliary materials, water and a biologic leavening agent, wherein the main materials are at least one selected from the following raw materials: crop straw, pomace, mushroom slag, distilled grain, furfural residue and tea leaves; the auxiliary materials are excrements of livestocks or garden soil; the biologic leavening agent is 0.2%, and the water is 50-60%, wherein the percentages are both weight percentages; and the volume ratio of the main materials to the auxiliary materials is (3:1)-(5:1). The nutrition planting soil has the beneficial effects of being wide in source, low in cost and simple in production process and method, and has the characteristics of high fertilizer efficiency, long fertility, complete nutrient, safety and reliability, toxic side effect freeness, environmental-friendliness and the like; the soil activity is improved, the stress resistance of plants is increased, the sufficient absorption of the plants to the nutrient is prompted, the biologic effect is good, the effects of prompting the growth of plants and prolonging the flowering phase are achieved, and as a result, the nutrition planting soil is an ideal nutrition planting soil.

The invention discloses a synthesis technology of allantoin. The synthesis technology comprises the following steps: adding a glyoxylic acid water solution, urea, and a catalyst into a reactor, wherein the catalyst is a mixture composed of sulfamic acid and modified macroporous strongly-acidic styrene type cation resin according to a weight ratio of 1:5; carrying out reactions for 6-8 hours at a temperature of 60-63 DEG C, cooling the reaction mixture to the room temperature, filtering, carrying out recrystallization, washing, drying to obtain a finished product of allantoin; merging the filtrate and washing liquid, and processing the merged liquid to obtain the catalyst. The catalyst can be repeatedly used. According to the synthesis method, glyoxylic acid and urea are taken as the raw materials, sulfamic acid and modified macroporous strongly-acidic styrene type cation resin are taken as a composite catalyst, the allantoin is synthesized in one step; the macroporous cation resin is modified by metals and then mixed with sulfamic acid, the catalytic efficiency and repeated utilization rate of the catalyst are improved, the using amount of catalyst is reduced; the technical procedure is simple, no pollution is generated, and the synthesis technology is green and environment-friendly, has a good ecological effect, and generates good social benefits and economic benefits.

The invention discloses a dendrobium huoshanense tree cultivation method. Dendrobium huoshanense plants are fixed to tree trunks, moss plants are arranged in water to be soaked completely, then 2-3 dendrobium huoshanense plants are taken as a whole plant to be fixed to a bark, the roots of the dendrobium huoshanense plants are wrapped by completely soaked moss and bundled and fixed by using straw ropes, the bundling positions are located at the root positions of the plants and exposed out of the roots to facilitate sprouting, the roots grow along the grains of the trees, the dendrobium huoshanense grow by absorbing nutrients brought by the trees, and finally the roots are embedded into the trees to grow with the trees together. The dendrobium huoshanense are planted on the tree trunks and are fully implanted into the surfaces of the tree trunks, and organic nutrients are produced due to the photosynthesis of leaves and delivered through the barks so that it can be ensured that dendrobium huoshanense planted on the tress are provided with sufficient organic nutrients, the barks are not removed, the trees are protected, and healthy tress growth is ensured.

The invention relates to a remediation method for copper and cadmium co-contaminated soil. The method specifically comprises the steps that eleusine indica is planted in the contaminated soil, and Trichoderma virens F7 or inactivation Trichoderma virens F7 are applied in a combined manner; and the classification name of the Trichoderma virens F7 is Trichoderma virens, and is stored in the ordinary microorganism center of the Chinese microorganism culture preservation administration committee with the storage number of CGMCC No.3.17613. The contaminated soil is treated with the Trichoderma virens F7 combined with the eleusine indica; remediation efficiency for the copper and cadmium co-contaminated soil is improved; and a cooperative remediation effect improvement phenomenon exists between microorganisms and the plants; a good ecological effect is provided, and the remediation method is applicable to remediation of the copper and cadmium co-contaminated soil; the application method for Trichoderma virens F7 fermentation liquor and solid preparations is easy; the biomass of the eleusine indica is obviously increased; meanwhile, the microbial biomass of the soil can be increased; and the rhizosphere micro-ecological environment of the plants is improved.

Antrodia cinnamomea is a valuable medical fungi. At present, artificial cultivation method of antrodia cinnamomea comprise cinnamomum kanehirai linden cultivation method, solid cultivation method and liquid fermentation method. However, the cinnamomum kanehirai linden cultivation method is long in cultivating period, high in cost, but low in antrodia cinnamomea output; and the antrodia cinnamomea obtained by the solid cultivation method and liquid fermentation method is few in nutrient content. The invention provides a Chinese fir board cultivating method of antrodia cinnamomea; the method comprises the following steps: using Chinese fir boards in 5*10*25 centimeters as carriers, soaking and high-temperature sterilizing, then inoculating antrodia cinnamomea strain for cultivation; growing antrodia cinnamomea fruit bodies in association with nutrition powders on the Chinese fir boards; the obtained antrodia cinnamomea fruit bodies are high in output and short in growth period. The cultivation technology of cultivating antrodia cinnamomea without cinnamomum kanehirai is achieved, thus not only being beneficial to protecting the rare cinnamomum kanehirai resources, but also improving the development of traditional Chinese medicine enterprises of antrodia cinnamomea raw materials, thereby achieving good ecological effect, economic effect and social effect.

The invention discloses a method for cultivating dendrobium candidum and anoectochilus roxburghii through rock in a forest land. According to the method, natural resources are fully utilized, dendrobium candidum is cultivated on rock covered with moss in a bamboo forest land or a forest land, anoectochilus roxburghii is cultivated on the ground around the rock, and a nutrient solution is sprayed to dendrobium candidum and the anoectochilus roxburghii regularly; in this way, the natural resources are fully utilized, and the utilization rate of the forest land is increased. By the adoption of the method, dendrobium candidum and anoectochilus roxburghii, as the famous and precious Chinese herbal medicine are planted by developing and utilizing natural sources, the yield and the quality of dendrobium candidum and anoectochilus roxburghii can be improved, the income of farmers is increased, the method has an important significance in promoting the rural economic development, the cultivation technology is simple, labor is saved, cost is reduced, and a good ecological effect, a good economic effect and a good social effect are achieved.

The invention discloses a method for planting hybrid napiergrass Guimu No.1 in the karst region. The method includes the steps that first, seeds are sown in the last ten days of February or the first ten days of March; second, transplanting is performed in April, calcium magnesium phosphate fertilizer is applied as base fertilizer before the transplanting, the planting distance is 60 cm, and the distance between every two rows is 60 cm; third, nitrogenous fertilizer is applied, urea is used as the nitrogenous fertilizer and has the N content of 46 percent, after the transplanting, the nitrogenous fertilizer is added according to the proportion of 125 kg / hm<2> for the first time, the nitrogenous fertilizer is applied in June, July, September and October every year for the second time to the fifth time, and the application amount per time is 125 kg / hm<2> to 375 kg / hm<2>; fourth, the grass is mown, the forage grass is mown two to four times from July to November for a whole year, the mowing time interval is between 35 days to 100 days, and the grass is mown according to the mowing strength with the distance from the mowing portions to the roots of the plants between 5 cm and 35 cm. The method is easy to perform and easy and convenient to operate, the hybrid napiergrass Guimu No.1 is high in photosynthesis capacity, high in yield and good in quality, and the readily available nutrient content of soil is high. Therefore, the method can be taken as the method of the first choice for planting forage grass in the karst region, the grain conflict between people and livestock can be effectively relieved in the karst region, and sustainable development of agriculture is promoted.

The invention discloses pleurotus nebrodensis fungus chaff fermented feed and a processing technology thereof. According to the pleurotus nebrodensis fungus chaff fermented feed, a fermenting raw material comprises pleurotus nebrodensis fungus chaff powder and cereal starch; the weight ratio of the pleurotus nebrodensis fungus chaff powder to the cereal starch is (18:1) to (20:1); the fermenting raw material is inoculated with a bacterium solution of which the weight accounts for 6% to 8% of that of the fermenting raw material, and then the mixture is subjected to anaerobic fermentation; the bacterium solution is a mixed bacterium solution comprising a candida solution and a lactobacillus acidophilus solution. According to the processing technology, the microbial fermentation is utilized to further reduce the contents of crude fiber anti-nutritional factors such as cellulose, hemicellulose and lignose, which are difficult to utilize, in the pleurotus nebrodensis fungus chaff, meanwhile, the contents of nutrient substances such as crude protein, crude fat, reducing sugars, amino acids and a nitrogen-free extract are reduced, and the sensory quality is improved, so that the pleurotus nebrodensis fungus chaff has a high feeding value.

The invention relates to a greening soilless lawn for roof surface, a production method and a using method thereof. The greening soilless lawn consists of a main body of the soilless lawn, a root-proof layer, a humidity sensor, branch pipes, a trunk pipe, a shut-off valve and a main controller, wherein, the root-proof layer is arranged on a roof floor plate in a floor side wall, the main body of the soilless lawn is paved on the root-proof layer, the trunk pipe is connected with the branch pipes, at least one humidity sensor is arranged in the main body of the soilless lawn, the humidity sensor is connected with the main controller through an information control line, the trunk pipe is connected with a water source controller, the water source controller is connected with a water source which needs to supply, and the main body of the soilless lawn consists of a protection layer, a plant layer, a plant growth base layer, a pipeline layer, a nutrition water retention layer and a bottom protection layer. The greening soilless lawn has the advantages of scientific design, reasonable structure, convenient construction, low cost, post maintenance and management, significant ecological effect of purifying urban air, abilities of increasing the area of green land and improving the urban landscape, and the effects of absorbing floating dust, absorbing carbon dioxide, reducing noise, storing water, releasing oxygen and the like.

The invention belongs to the technical field of plant cultivation and in particular relates to a method for planting Suaeda salsa on a saline-alkali land. The method comprises the following steps of selecting and processing seeds (1), preparing the land (2), applying fertilizer (3), watering (4), trenching (6), broadcasting (7) and irrigating (8) and harvesting. By the use of the method, provenance merit factor and bud ratio can be guaranteed and improved; saline and alkaline of the soil can be reduced; survival of seedlings of the Suaeda salsa and final output can be improved; great ecological effect and environment protection can be improved; saline-alkali land and beaches can be greened and beautified; and utilization rate of the saline-alkali land can be improved.

The invention relates to especially relates to an activator for soil phosphorus, belonging to the technical field of activation of phosphorus. The activator for soil phosphorus comprises, by weight, 15 to 25 parts of phosphorus-dissolving microbes, 70 to 80 parts of a carrier and 2 to 8 parts of a protective agent, wherein the protective agent is one or a mixture of more than one selected from a group consisting of bone meal, gelatin, citric acid and amino acid. The invention also provides a preparation method and application of the activator for soil phosphorus. The activator for soil phosphorus in the invention can activate slightly-soluble phosphorus in soil, improve the state of phosphorus in soil and help plants in synergistic absorption of nitrogen, phosphorus and potassium, so the application amount of fertilizer is reduced, the efficiency of fertilizer is improved, and the activator exerts good ecological effect on energy conservation and environmental protection.

The invention discloses an ecological environment reconstruction system for a riverway. The ecological environment reconstruction system comprises a sedimentation tank, a filter tank and a clear waterriverway which are disposed on the riverway, wherein a sand trap is arranged between the sedimentation tank and the filter tank; a water passing dam is arranged between the filter tank and the clearwater riverway; the filter tank comprises a riprap layer disposed on the surface of the river bottom; an anti-seepage geotextile and plain soil layer, a gravel layer, a grass brick layer, a planting soil layer and an aquatic plant layer are sequentially arranged on the riprap layer from bottom to top; and a clear water collecting device is communicated to the clear water riverway through a water conveying pipe. The river ecological environment reconstruction system can improve the problem of low water self-cleaning capacity caused by severe damage to the ecological environment of the riverway,replacement of polluted water with clean water, treatment with a digging and dredging mode, consumption of a large amount of human and material resources and destroying of a physical structure of theriverway.

The invention relates to the field of metallurgy, in particular to a process for producing electronic aluminium alloy from recycled aluminium. The process comprises the following steps of (1) smelting, (2) stirring and slagging off; (3) standing; (4) sampling analysis; (5) burdening; (6) degassing and refining; (7) alloy replenishing; (8) segregating modifier adding; (9) filtering and secondary sampling; and (10) ultrasonic casting. An aluminium alloy product comprises the following elements in percentage by mass: 0.3%-0.6% of Si, 0.5%-0.6% of Fe, 0.45%-1.32% of Mg, 0.12%-0.27% of Cu, 0.11%-0.13% of Mn, 0.10%-0.22% of Zn, 0.03%-0.13% of Cr, and the balance of Al and inevitable impurity elements. The recycled aluminium produced through the process can reach the performance index of the aluminium alloy for an electronic product, and has higher economy and higher environment-friendly value.

The invention is applicable to the field of plant cultivation technological improvement, and provides a method for planting dendrobium officinale potted landscape. The method includes A, manufacturing planting substrates; B, transplanting domesticated seedlings of dendrobium officinale; C, tending and protecting the transplanted domesticated seedlings, to be more specific, a regulating the temperatures and illumination, b watering and fertilizing the seedlings, c pruning the transplanted seedlings and killing weed, d preventing and treating plant diseases and insect pests and e harvesting the dendrobium officinale potted landscape. The method has the advantages that the substrates and the colonized seedlings are soaked in Chinese herbal medicine liquid, botanical biological insecticides are preventively sprayed on the colonized seedlings, accordingly, the plant diseases and insect pests can be reduced for the dendrobium officinale to a great extent, and growth environments for the dendrobium officinale can be purified; the dendrobium officinale is basically free of plant diseases and insect pests in planting procedures, pesticides can be omitted, and accordingly the food safety of the dendrobium officinale can be greatly improved.

The invention discloses a production method for granular function-intensifying type magnesium-containing ammonium phosphate. The method comprises the following steps: taking ammonium phosphate which is 5%-50% of the total amount of the phosphoric acid required by the production and adding magnesium oxide for reacting; introducing the acquired product into liquid ammonia and neutralizing, thereby acquiring reaction slurry containing magnesium ammonium phosphate and ammonium phosphate; producing ammonium phosphate grains by utilizing the remaining 95-50% of phosphoric acid according to an original process; sending the reaction slurry to the tail part of a pelletizer; spraying and coating on the surfaces of the ammonium phosphate grains; and drying, screening and cooling, thereby acquiring the magnesium-containing ammonium phosphate product. According to the invention, the important medium element magnesium is added into the traditional ammonium phosphate product; magnesium and phosphorus have an important synergistic effect; the absorption of crops for phosphorus can be obviously promoted; the fertilizer efficiency and the use ratio of the phosphatic fertilizer can be promoted; the crop quality can be promoted; according to the method, the ammonium phosphate product can be effectively prevented from moisture absorption, decomposition and re-crystallization; the functions of resisting against dust and blocking of similar packaging oil can be achieved; a certain slow release effect can be achieved; the process according to the invention is simple, practical and efficient; the product quality is high; the economic returns are excellent; the environment is protected; the application prospect is excellent.

The invention belongs to the technical field of civil construction engineering materials, and particularly relates to green and low-carbon foam light soil prepared by using carbon dioxide and magnesium oxide as raw materials. The carbonized foam light soil is prepared from the following raw materials in parts by weight: 10 to 200 parts of magnesium oxide, 10 to 100 parts of a filler, 2 to 45 parts of CO2 bubble group and 20 to 400 parts of water. According to the invention, based on the problems of large carbon emission and serious energy consumption caused by a cement curing agent used by traditional bubble mixed light soil, the invention aims to provide a novel bubble mixed light soil operation method, so that a foundation treatment technology is promoted to be converted from high pollution and high energy consumption to low carbon, environmental protection and sustainable conversion, and the light soil is prepared by taking magnesium oxide as a curing agent and carbon dioxide gas as a raw material of bubbles.