82results about How to "Does not damage the ecological environment" patented technology

The invention provides ceramic color sand and a preparation method thereof. The ceramic color sand comprises the following raw materials in parts by weight: 100 parts of solid wastes, 5 to 110 parts of plasticizer, 12 to 28 parts of silica fume, 0.1 to 10 parts of pigment, 0.5 to 2 parts of water reducer and 22 to 39 parts of water. The ceramic color sand has the advantages that the solid wastes are used as the main raw material, and are combined with other ceramic raw materials and pigment, so as to prepare the integral artificial color pottery sand through granulating, drying and sintering; the problem of pollution by the solid wastes is effectively relieved, and the problems of complicated artificial color sand preparation technology, destruction to ecological environment, poor degree of sphericity, easiness in stripping and separation of outer coating layer and inner core, short service life and the like are solved.

The invention provides a processing method for removing the bamboo outer skin and the bamboo inner skin of a bamboo tube. The bamboo outer skin and the bamboo inner skin are removed by rotatably cutting the bamboo tube inside and outside, and bamboo joints inside the bamboo tube are removed in advance before rotary cutting. The processing method comprises the following steps that (a) the bamboo tube is prepared; (b) the bamboo joints are removed; (c) the bamboo outer skin is removed in a rotary cutting mode; and (d) the bamboo inner skin is removed in a rotary cutting mode. The processing method for removing the bamboo outer skin and the bamboo inner skin of the bamboo tube has the advantages that (1) the prepared bamboo tube does not have the bamboo outer skin, the bamboo inner skin or the bamboo joints, can be flattened to manufacture a flawless bamboo plate, and can also be laminated to manufacture a laminated bamboo plate for manufacturing bamboo products such as reconsolidated bamboo; and the bamboo outer skin and the bamboo inner skin, with the same thickness, of an irregular bamboo tube can also be removed, the production efficiency is high, energy consumption in processing is low, and work and time are saved; and (2) the bamboo joints are removed by using a twist bit of an inner roller A, then the bamboo tube is driven to rotate through the rotation of an inner compression roller and an outer compression roller, and the bamboo outer skin and the bamboo inner skin are removed through rotary cutters which are tightly close to the two compression rollers. The processing method for removing the bamboo outer skin and the bamboo inner skin of the bamboo tube provides technical support for manufacturing the bamboo into the flattened bamboo plate and producing the laminated bamboo plate.

The invention relates to the field of compound fertilizers, and particularly relates to a slow-release compound fertilizer containing natural worm-expelling components. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of kieselguhr of 1250-2000 meshes, 10-12 parts of potassium sorbate, 16-19 parts of ammonium dihydrogen phosphate, 4-5 parts of magnesium chloride, 10-12 parts of sodium pyrophosphate, 22-23 parts of well-rotted farmyard manure, 6-8 parts of dried tempeh fine powder, 4-6 parts of formosan lattuce herb leaf and stem, 5-6 parts of Tephrosia purpurea stem and leaf, 4-5 parts of burdock dreg powder, 1-3 parts of starch aluminum octenylsuccinate, 1-2 parts of potassium persulfate, 10-12 parts of acrylamide, 1-2 parts of negative ion powder, 2-4 parts of medical stone powder, 6-8 parts of polymeric ferric silicate sulfate and 4-5 parts of assistant. According to the invention, the compound fertilizer formula has wide raw material sources and multiple nutrients; slurry of the formosan lattuce herb leaf and stem and the Tephrosia purpurea stem and leaf contains natural worm-expelling components, so that worms and ants can be prevented from nibbling the fertilizer; and by technically using the kieselguhr and the slow-release coating agent containing the negative ion powder, the nutrients are doubly coated, so that the nutrients are less prone to loss, and the fertilizer efficiency can last longer. In practical application, the compound fertilizer can obviously improve the yield and quality of crops and increase economic benefits.

The invention provides a method for simultaneously producing and preparing three active constituents, including Syringin, chlorogenic acid and 1, 5-dicaffeoylquinic acid by cell culture of herba saussureae involucratae on large scale. The method comprises application of flask shaking suspension culture and bioreactor culture, and separation and preparation process for the three constituents in the cultured cell. The invention provides a new method for production of the three medicinal active constituents, and the new method can provide enough resource for clinical medicine application; moreover, the method can protect the rare wild plants resource while realizing harmless, pollution-free and low-cost large scale production of the herba saussureae involucratae active constituents, so that the resources crisis is eased effectively.

The invention discloses microbial mineralized cementation treatment liquid and a sandy slope treatment method. The microbial mineralized cementing treatment liquid is formed by mineralized bacteria liquid, bacillus liquid and a calcium source mixed solution which are independent of each other according to the volume ratio of 1:(5-10):(1-3). The mineralized bacteria liquid is divided into 1# bacillus pasteurii liquid and 2# staphylococcus liquid, wherein the 1# bacillus pasteurii liquid is suitable for treating sandy soil with the slope ratio being smaller than 1: 1 and the particle size ranged being smaller than 20 mm, and the 2# staphylococcus liquid is suitable for treating sandy soil with the slope ratio being smaller than 1: 1 and the particle size range d being larger than 0.074 mm and smaller than 10 mm. When the sandy slope is treated, the mineralized bacteria liquid is sprayed on the sandy slope first, then the calcium source mixed solution is sprayed, spraying is carried outtwice a day in the order and carried out for five days continuously, and the bacillus pasteurii liquid is sprayed again after a solidified layer on the sandy slope reaches a certain thickness.

The invention discloses a method for restoring copper-polluted soil by plants. The method provided by the invention is characterized in that dayflower seedlings subjected to cutting propagation are planted in copper-containing soil, grow and are harvested or are pulled up during harvest time; and copper is recovered. Concretely, the method comprises the following steps of 1, cutting off stems of dayflower plants, carrying out cutting propagation of the stems by a cutting bed according to plant and row distances of 5cm*10cm, and keeping soil moist after cutting, 2, flattening a sample area in copper-polluted zone, and digging planting holes, 3, planting dayflower seedlings rooting in the cutting bed in copper-containing soil, 4, harvesting overground parts of the dayflower seedlings or pulling up the whole dayflower seedlings with roots, and 5, drying and crushing the harvested overground parts of the dayflower seedlings or the whole dayflower seedlings with roots, and carrying out copper recovery. The method provided by the invention has the advantages of low cost, high restoration efficiency and low environmental risk, and can be utilized for restoration of copper-polluted soil in industry and agriculture and for reconstruction of ecological vegetation in a mine tailing area.

The invention relates to an in-situ geothermal thermoelectric power generation device integrated system, and belongs to the technical field of geothermal power generation. The in-situ geothermal thermoelectric power generation device integrated system is formed by a protective layer in the outermost layer, a high-thermal-conductivity gel layer arranged in the middle and used for conducting heat, and a cold water circulating pipe in the innermost layer. a plurality of thermoelectric device modules used for thermoelectric power generation are embedded into the high-thermal-conductivity gel layer, the power generation device taking the thermoelectric device modules as the main body is connected with a ground control device, and a water flow channel is left between the high-thermal-conductivity gel layer and the cold water circulating pipe. The thermoelectric device does not have mechanical rotational parts, and can work without noise, and can directly convert heat energy into electric energy without generating mechanical energy loss, and is high in generating efficiency; the selected thermoelectric material is simple in preparation technology, stable in structure, small in size, lightin weight and fast in response speed; the same device can be used by selecting different thermoelectric materials according to different heat sources, and is wide in application scope, and can carryout thermoelectric conversion for power generation on different grades of heat sources such as deep ground and hot springs on the earth's surface.

The invention relates to a permeable reaction medium for the remediation of nitrobenzene-polluted underground water. The permeable reaction medium is granular and is formed through the cementation of zero-valent iron and straw powder by using a cementing agent; the content of the zero-valent iron and the content of the straw powder are respectively 25-35 mass% and 55-65 mass%; and the content of the cementing agent is 6-11 mass%. According to the permeable reaction medium for the remediation of the nitrobenzene-polluted underground water, the zero-valent iron and the straw powder are selectedas raw materials of a filling medium of a permeable reactive barrier, the zero-valent iron and the straw powder are cemented into a granular shape, and chemical reaction and physical adsorption can be reasonably combined, so that the permeable reaction medium has an excellent treatment effect for nitrobenzene, a short remediation cycle and no secondary pollution; the zero-valent iron and the straw powder are low in price and easy to get; on the premise of reasonable cost, the excellent treatment effect for the nitrobenzene is achieved, and thus, the permeable reaction medium has broad prospects.

The invention discloses a method for recovering a heavily polluted water body in a city by utilizing aeration-to-sediments. The method comprises the following steps: (1) aeration to sediments: aerating the sediments in the water body by an aerating apparatus to enable the sediments to suspend and utilizing the suspended sediments to adsorb pollutants such as organics, ammonia, nitrogen and phosphorus in the water body, thereby achieving the purpose of oxidation and removal through the aeration method; (2) sedimentation: naturally sedimenting the suspended sediments. According to the method, resource is saved; no chemical or biological risk is brought to the water body; the sediments in the water body are purified via aeration and oxidation manners to reduce the sediment dredging frequency while pollutants in the water body are removed.

The invention discloses a sand-fixing and wave-breaking hydraulic-filled island-reef revetment made of a basalt fiber. The revetment comprises fixing vertical columns, a solidification layer, porous wave-breaking pipes, a basalt tied rebar grid layer and crisscross water-blocking rods, wherein the porous wave-breaking pipes are vertical hollow pipes; symmetrical wave-breaking holes are formed in the pipe walls of the vertical hollow pipes; and the fixing vertical columns, the solidification layer, the porous wave-breaking pipes and the crisscross water-blocking rods are all formed by pouring cement onto basalt fiber tied rebars and then coating the cement-poured basalt fiber tied rebars with basalt impermeable geotextile. The revetment disclosed by the invention is environmentally friendly, modular in production, light in weight, resistant to corrosion, short in construction period, convenient to construct and strong in anti-wave capability; the revetment is made of a basalt fiber composite, and the basalt fiber is not only relatively high in mechanical property but also strong in corrosion resistance, relatively high in cost performance, long in service life and free of secondary pollution; and therefore, not only is the surrounding ecological environment protected from damage, but also the apposition growth of oysters, corals and other sea creatures is facilitated.

The invention relates to the field of compound fertilizers, in particular to a high-efficiency slow-release compound fertilizer containing Crotalaria pallid. The fertilizer is prepared from the following raw materials by weight part: 10-15 of 1250-2000 mesh diatomite, 10-12 of calcium carbonate, 6-8 of borax, 2-3 of magnesium ascorbyl phosphate, 8-10 of disodium hydrogen phosphate, 5-6 of pyracetic acid, 10-12 of potassium bitartrate, 20-22 of urea, 25-28 of diammonium phosphate, 12-15 of crop leftover, 3-5 of plasma protein powder, 1-3 of Crotalaria pallid fine powder, 4-5 of potassium alginate, 2-4 of stearic acid, 10-12 of gelatin, 1-3 of Vaseline, 1-2 of Tween 80, 2-4 of medical stone powder, 6-8 of polymeric ferric silicate sulfate, and 4-5 of an assistant. The compound fertilizer provided by the invention utilizes diatomite and a coating agent with good slow release ability to form dual cladding on the multielement nutrients, so that the nutrients are difficult to lose, and the fertilizer efficiency can be more lasting. The Crotalaria pallid fine powder in the coating agent has certain insecticidal and antibacterial ability, provides good growing environment for crop roots, and does not destroy the soil ecological environment. The fertilizer provided by the invention can significantly improve the crop yield and quality and enhance economic benefits.

The invention discloses a recycled aggregate total pervious concrete pavement structure and a construction method thereof. The pavement structure comprises a pervious cushion ply, a pervious base layer, a pervious surface layer and a pervious cover layer paved from bottom to top; the pervious cushion ply is made from natural gravels; the pervious base layer and the pervious surface layer are recycled aggregate total pervious concrete; and the pervious cover layer is pervious concrete prepared from a aggregate. The pavement structure disclosed by the invention is relatively good in water permeability and wear resistance.

The invention provides a chitin-synthesized inhibitory pesticide.The chitin-synthesized inhibitory pesticide is prepared from double-stranded RNA serving as an active ingredient, wherein the nucleotide sequence of a positive-sense strand of a transcription template of the double-stranded RNA is shown as SEQ ID NO:1.The chitin-synthesized inhibitory pesticide has a remarkable prevention and treatment effect on brown planthopper; in addition, pesticide resistance and environment pollution can be avoided, the ecological environment is not destroyed, and safety and environment friendliness are achieved.

A floating body photovoltaic system which is used on a calm water surface is formed by assembling a plurality of floating body photovoltaic units and the whole system is fixed by fastening a mooring rope to a plurality of anchors. Each floating body photovoltaic unit is composed of a floating body fixation frame, floating bodies, a photovoltaic plate fixation frame and photovoltaic plates. The floating body fixation frame is a square net frame structure and is made of light and rust-resisting materials. The external frame side surface of the floating body photovoltaic unit is provided with a plurality of screw via holes for splicing and fixing the floating body photovoltaic units. The plurality of floating bodies are fixedly connected to the lower portion of the floating body fixation frame, and the plurality of photovoltaic plates are fixedly connected to the upper portion of the floating body fixation frame. The photovoltaic plates are fixed on the photovoltaic plate fixation frame. After the whole floating body photovoltaic system is assembled, and water surface position and illumination direction are determined, the whole floating body photovoltaic system is fixed on ground or to the anchors underwater by the mooring rope. According to the water surface floating body photovoltaic system, the illumination space of a deepwater water surface is fully utilized, the blank of water surface photovoltaic power generation is filled, and the water surface floating body photovoltaic system is quick in assembly, fast in construction, and low in cost, and water ecology environment is not damaged.

The invention discloses a passivator for farmland heavy metal contaminated soil, and a preparation method and application of the passivator. The passivator for the farmland heavy metal contaminated soil is mainly composed of clay minerals, iron-based minerals, phosphorus-based compounds, areca waste powder, a pH regulator and the like. The preparation method comprises the following steps: drying and crushing areca nuts, areca seed kernels, areca branches and the like generated in an areca-nut production process, then mixing the dried and crushed areca waste powder with the clay minerals, the iron-based minerals and the phosphorus-based compounds, then adjusting the pH value by adopting the pH regulator to obtain the passivator. The passivator is applied to the farmland heavy metal contaminated soil, dissociative heavy metal ions in the soil can be efficiently adsorbed and fixed, so that heavy metals entering crops can be effectively reduced, the original ecological environment and thesoil structure are not damaged, meanwhile the soil fertility can be improved, the harm of harmful organisms in the soil can be reduced, and the yield of the crops can be increased.

The invention discloses a method for utilizing algondon to extract heavy metals from soil. The method comprises the steps that: a pollution source providing heavy metals is isolated from the land area where restoration is required and the heavy metal content of the soil is out of limits; the pH value of the soil in the land area is regulated and controlled to range from 6 to 7.5 and the algondon is selected as extraction plant, which is then planted in the soil of the land area; the planted algondon extracts the heavy metals in the soil of the land area and the algondon is planted and harvested for cotton in one phase or a plurality of phases without interruption till tests indicate that the content of the heavy metals in the soil meet the safety standards. The method is simple, highly operable and easy to populate as well as has low cost; furthermore, the obtained various parts of the algondon plant crops all can be used and have great economic and social benefits. The method can fundamentally eliminate harms the heavy metals do to soil health, foods safety and the health of human beings and effectively avoid secondary pollution without damaging the ecological environment of the soil.

The invention discloses a river power machine and a power utilization device thereof, wherein a vertical slideway is respectively arranged on both sides of a portal supporting frame in a fixed river, sliders are arranged on the slideways and taken as bearing pedestals, and impellers are arranged on the bearing pedestals, so as to form the river power machine; supporting seats are fixed on the sliders of the river power machine, and gear-shift mechanisms and generators are arranged on the supporting seats, so as to form a river power generator; and supporting seats are fixed on the sliders of the river power machine, reciprocating pumps are arranged on the supporting seats, and crank link mechanisms are arranged on impeller shafts, so as to form a river power force pump. The river power machine utilizes river power to do work, generate electricity and pump water, fully utilizes river resources, and is suitable for large-area promotion under the condition of energy crisis.

The invention provides a curing and stabilizing repairing agent for contaminated soil. The curing and stabilizing repairing agent is prepared from the following raw materials in parts by weight: 30-47parts of calcium salt, 10-16 parts of steel slag, 10-15 parts of reduced aluminum powder and 20-35 parts of silicate minerals. The calcium salt, steel slag, reduced aluminum powder and silicate minerals are crushed into powder, and the powder of the calcium salt, the steel slag, the aluminum oxide and the silicate minerals are proportionally and uniformly mixed in parts by mass to obtain the curing and stabilizing repairing agent. The raw materials are green raw materials which are environment-friendly, low in cost and stable in property, the preparation method is simple and easy to implement, the repairing process is fast, and the repairing effect is obvious.

The invention relates to a rapid in-situ processing technology for an arsenic-polluted river water body and a construction technology for a water-permeable adsorption dam, and solves the problems that at present processing of river abrupt arsenic pollution accidents is large in difficulty, high in cost, complex in operation and severe in secondary pollution. A dam raw material is active aluminium oxide balls with the particle size of 2-8 mm, and the above active aluminium oxide ball is taken as the raw material for constructing the water-permeable dam along the water-flow perpendicular direction in a polluted river, and polluted water is processed when passing through the dam. The stay time is 5-10 min, and the removal rate has the highest value of 95% or more. The technology is capable of rapidly treating arsenic-polluted river water body with good effect. The technology has the advantages of low cost, simple operation, short restoration period, friendly ecology, no secondary pollution and wide application scope.

The invention discloses a conditioner for heavy-metal-contaminated soil of an acid farmland and a preparation method and application thereof. The soil conditioner is mainly composed of clay minerals,iron-based minerals, phosphorus-based compounds, betel nut residue decomposed fertilizer, betel nut residue powder, quick lime and the like; the preparation method of the conditioner comprises the steps that betel nut residues, farmyard manure and straw are decomposed by means of an accumulation method to obtain the betel nut residue decomposed fertilizer; betel nut residues are dried and crushedto obtain the betel nut residue powder; after the betel nut residue decomposed fertilizer, the betel nut residue powder, the clay minerals, the iron-based minerals and the phosphorus-based compounds are mixed, the quick lime is adopted for adjusting the pH to alkalinity, and the conditioner is obtained; the conditioner is used for the heavy-metal-contaminated soil so that not only can free heavy metal ions in the soil be efficiently adsorbed and fixed and prevented from entering crops effectively, but also the original ecological environment and soil structure of the farmland are not destroyed, the soil fertility is improved at the same time, the damage of harmful organisms in soil is reduced, and the yield of the crops is increased.

The invention discloses a special fertilizer for oilseed rapes and a preparation method thereof. The special fertilizer for the oilseed rapes is prepared from the following raw materials in parts by weight: 100 to 150 parts of straw powder, 30 to 50 parts of animal bone meal, 30 to 45 parts of rapeseed dregs, 20 to 35 parts of powdered rock phosphate, 15 to 30 parts of potassium superphosphate, 18 to 25 parts of humus, 4 to 8 parts of saccharides, 0.6 to 1.2 parts of EM stock solution, 10 to 18 parts of modified vermiculite power, 4 to 8 parts of borax, 5 to 9 parts of sepiolite powder, 0.5 to 1 part of plant growth regulator, 15 to 25 parts of traditional Chinese medicine dregs, and 2 to 4 parts of polyvinyl alcohol. According to the special fertilizer for the oilseed rapes and the preparation method thereof provided by the invention, the formula is reasonable, the occurrence rate of rapeseed diseases and insect pests is reduced, the stress resistance of the oilseed rapes is improved, meanwhile, the ecological environment of soil is improved, the damage of overmuch ground temperature change on root parts of the oilseed rapes is effectively relieved, the rapeseed quality is improved, and the yield of the oilseed rapes is increased.

The invention relates to a construction technology for building a photovoltaic power station on water. A plurality of pits are dug in shore-based parts around a water area and under the water, then the pits are poured with concrete to manufacture a foundation, stand columns are pre-buried when the concrete is poured, the matrixes of the photovoltaic power station are connected in an end-to-end mode in series through connecting rods to form photovoltaic power station matrixes, the left sides and the right sides of the photovoltaic power station matrixes are connected through steel wire ropes in a soft mode, and therefore each photovoltaic power station matrix can be relatively moved through free degree in directions except the front position and the back position being fixed, and the water position of unit matrixes can be automatically adjusted along with the water fluctuation, and the service life of the power station matrixes is prolonged. The periphery of each photovoltaic power station matrix is fixed to sliding blocks, installed on the stand columns in a sliding mode, of shore-based accessories through cable wind ropes, and therefore the height of the cable wind ropes can be adjusted automatically and vertically according to the sliding blocks to adapt to the change of the water height, and the damage to the power station because the stress direction of the cable wind ropes is changed by the water change is overcome.

The invention discloses a cadmium-contaminated paddy field soil remediation agent and a preparation method and application thereof. The cadmium-contaminated paddy field soil remediation agent comprises the following components: clay mineral powder, waste water purifier activated carbon filter element powder, waste water purifier RO membrane powder, a pH regulator and an organic fertilizer; the preparation method comprises the following steps: dispersing waste water purifier activated carbon filter element powder and clay mineral powder in water, regulating the pH to be 2-5, transferring the mixture to a hydrothermal reactor for hydrothermal reaction, placing the hydrothermal reaction products in a protective atmosphere for calcining, mixing the calcined products, waste water purifier RO membrane powder, the pH regulator and the organic fertilizer, so as to obtain the cadmium-contaminated paddy field soil remediation agent. The cadmium-contaminated paddy field soil remediation agent is good in stability, effectively adsorbs and immobilizes free cadmium ions in the cadmium-contaminated paddy field soil, reduces the cadmium content of crops, does not destroy the original ecological environment or the soil structure, improves the soil fertility, and further increases the crop yield.

The invention relates to a construction technology for building a photovoltaic power station on water. A plurality of pits are dug in shore-based parts around a water area and under the water, then the pits are poured with concrete to manufacture a foundation, stand columns are pre-buried when the concrete is poured, the matrixes of the photovoltaic power station are connected in an end-to-end mode in series through connecting rods to form photovoltaic power station matrixes, the left sides and the right sides of the photovoltaic power station matrixes are connected through steel wire ropes in a soft mode, and therefore each photovoltaic power station matrix can be relatively moved through free degree in directions except the front position and the back position being fixed, and the water position of unit matrixes can be automatically adjusted along with the water fluctuation, and the service life of the power station matrixes is prolonged. The periphery of each photovoltaic power station matrix is fixed to sliding blocks, installed on the stand columns in a sliding mode, of shore-based accessories through cable wind ropes, and therefore the height of the cable wind ropes can be adjusted automatically and vertically according to the sliding blocks to adapt to the change of the water height, and the damage to the power station because the stress direction of the cable wind ropes is changed by the water change is overcome.

The invention relates to application of vibrio halioticoli as a feed additive in abalone farming. Vibrio halioticoli (WA51 strain) has strong alginase activity and can degrade the main component alginic acid of alga in feed into oligosaccharides and short-chain aliphatic acid, which can be easily absorbed by organisms, so the invention provides application of vibrio halioticoli as a feed additive in abalone farming. When used as a feed additive for juvenile abalones, vibrio halioticoli facilitates juvenile abalones' competition with pathogenic bacteria for adhesion sites, maintains normal microecological balance in intestinal tracts and can colonize in intestinal tracts of abalones; vibrio halioticoli can promote absorption of nutrients and improve immunity, thereby further improving the growth speed and disease resistance of haliotis discus hannai; and vibrio halioticoli can substitute chemicals for disease prevention and control and does not destroy ecological environment.

The invention relates to the field of compound fertilizers, and particularly relates to a double slow-release compound fertilizer containing herba houttuyniae. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of kieselguhr of 1250-2000 meshes, 6-8 parts of potassium benzoate, 10-12 parts of heavy calcium carbonate, 15-18 parts of ammonium hydrogen carbonate, 4-6 parts of boric acid, 18-20 parts of dried cow dung, 10-12 parts of tobacco waste, 20-22 parts of rotted mushroom mash, 4-5 parts of papain, 2-3 parts of fish viscera dried powder, 1-2 parts of herba houttuyniae powder, 8-10 parts of wheat bran, 6-8 parts of dialdehyde starch, 4-5 parts of glycerol, 3-6 parts of sodium alginate, 1-2 parts of potassium ferrocyanide, 10-12 parts of vinyl acetate, 0.2-0.3 part of ammonium persulfate, 1-2 parts of sodium dodecylsulfate, 2-4 parts of medical stone powder, 6-8 parts of 50-60% sulfuric acid and 4-5 parts of assistant. According to the invention, the compound fertilizer contains diverse raw materials and multiple nutrients; double coating is formed by using the kieselguhr and the slow-release coating agent containing the herba houttuyniae, so that the nutrients are less prone to loss, and the fertilizer efficiency can last longer. The compound fertilizer can improve the antimicrobial and disease-resistant capabilities of crops without destroying the ecological environment of soil, and the yield and quality of the crops can be improved.

The invention provides a novel generator which includes a water wheel main shaft, blades, blade frames, impeller buoys, fixed piles, a gearbox and the generator. The main shaft is arranged in the centre of the blades, and the blade frames are arranged between the blades and the main shaft. The impeller buoys are arranged on both sides of the fixed piles and are connected with the water wheel main shaft. The fixed piles are arranged between a water wheel assembly and the buoys, and the water wheel assembly comprises multiple blades and blade frames. The gearbox is arranged on either side of the water wheel assembly, and the generator is connected with the gearbox. The fixed piles are used for fixing the water wheel assembly in the river. The practical generator unit is big in generated output and can be built on artificial canals of all rivers in the world; the practicability is wide, and the generated electricity does not cost a cent.

The invention discloses a method using ants to spread verticillium lecanii for control of tree trunk stomaphissinisalicis; first, a lard and brown sugar mixture with the sugar content about 5-30% is prepared, after the lard and brown sugar mixture is condensed into a bulk, the lard and brown sugar mixture is cut into 0.5-2cm<3> small pieces, the small pieces are rolled in verticillium lecanii spore powder, so that the surface of the small pieces is fully covered with verticillium lecanii spore, and a verticillium lecanii spore release block is prepared; the verticillium lecanii spore release block is put in an inlet of an ant nest and an inlet of an ant path of a tree trunk for freely feeding to the ants, in the free feeding process, the verticillium lecanii spore may stick to epidermis, mouthparts and limbs, when the verticillium lecanii spore contacts stomaphissinisalicis hiding in the tree trunk, the verticillium lecanii spore may be transferred to the stomaphissinisalicis, and after the stomaphissinisalicis body surface is infected by the verticillium lecanii spore, the stomaphissinisalicis may die due to infection. The method has the advantages of good control effect, low cost and environmental protection.