87 results about "Wood ash" patented technology

The invention provides a biological organic fertilizer and a preparation method thereof. The biological organic fertilizer is prepared from the following raw materials in parts by weight: 10 to 15 parts of rice husk, 8 to 12 parts of peanut shell, 10 to 15 parts of bagasse, 15 to 20 parts of straw, 20 to 25 parts of livestock manure, 5 to 10 parts of pond sludge, 3 to 5 parts of plant ash, 5 to 10 parts of oil meal, 5 to 10 parts of ammonium phosphate, 2 to 5 parts of low-temperature complex microbial inoculants, 3 to 6 parts of seaweed oligosaccharide, 5 to 10 parts of modified vermiculite powder and 10 to 20 parts of photothermal conversion microspheres. According to the invention, waste is taken as a basic raw material and is matched with ammonium phosphate to rapidly supplement available nutrients, and meanwhile, the low-temperature complex microbial inoculant, the modified vermiculite powder and the photothermal conversion microspheres are introduced to form a synergistic interaction system. Vermiculite powder is modified, so that the nutrient adsorption and slow release capability is improved, a carbon source and low-temperature protection are provided for microorganisms, and the cell membrane stability is enhanced. The photothermal conversion microspheres efficiently absorb sunlight and convert the sunlight into heat energy, a local and mild heat island effect is formed around the fungicide, the microenvironment temperature is increased, breeding of the fungicide is remarkably accelerated, and therefore organic matter decomposition and nitrogen conversion are accelerated.

The present application aims at the problems of excessive consumption of traditional cement limestone resources, excessive energy consumption and high carbon emission, and provides a carbonated hardened low-calcium cement and a preparation and hardening method thereof, which is a hardening method for curing low-calcium cement by CO2 carbonation. The mass percentage composition of cement raw material components is: limestone: 60-70%, sandstone or clay or silica ash: 15-25%, phosphogypsum, fluorogypsum or desulfurization gypsum: 5-25%, component A: 0.5-2%. Component A is composed of the following raw material components in mass percentage: fluorite 0-50%, barium slag: 0-50%, lithium slag 0-50%, wood ash 0-50%, industrial sodium carbonate 0-30%. The composition design of carbonated hardened cement clinker minerals is C2S: 10-90%, C5S2$: 10-90%, C$: 0-5%, C4A3$: 0-10%, etc. In the present application, the limestone required for the cement clinker is lower than that of ordinary Portland cement clinker, the calcination temperature is reduced by 200-350 DEG C than that of ordinary Portland cement clinker, and the energy consumption and carbon emission are significantly lower than those of Portland cement; the low-calcium cement is hardened by CO2 carbonation curing, which can make the cement obtain excellent mechanical properties within 2 hours.

The invention relates to the technical field of organic fertilizer production, in particular to a mixed organic fertilizer based on livestock and poultry manure and a production process thereof, and the mixed organic fertilizer comprises the following raw materials: livestock and poultry manure, straw powder, plant ash, modified humic acid, a complex microbial inoculant, a modified water-retaining agent, a trace element additive and a binder. According to the invention, the modified humic acid is subjected to activation and integration treatment, so that the capability of exciting soil activity and stabilizing nutrients of the modified humic acid is remarkably improved; the complex microbial inoculant adopts a microcapsule embedding technology, so that the activity of functional microorganisms is effectively protected, and the functional microorganisms can stably survive and continuously play a role in a fertilizer environment; the modified water-retaining agent forms a three-dimensional network structure through graft copolymerization, and has excellent water absorption and retention performance and nutrient slow release function.

The application belongs to the technical field of organic waste treatment, and discloses a device and method for strengthening hydrothermal carbonization of organic waste by coupling with wood ash and granulation, which utilizes a vibration fluidization device to perform vibration fluidization on the organic waste, utilizes three-layer spiral blade paddles to perform multi-stage cutting and stirring on the organic waste, and realizes multi-stage mechanical granulation of the organic waste under the joint action of the two, destroys and modifies the macrostructure of the organic waste, and changes the organic waste into uniform small-particle organic waste; subsequently, alkali wood ash is utilized to promote alkaline deconstruction of the biomass molecules of the uniform small-particle organic waste, destroy and modify the microstructure of the organic waste, and improve hydrothermal activity.

The invention relates to a curing agent for high-flow-state solidified soil applied to underwater structure scour pit protection, the high-flow-state solidified soil and application of the high-flow-state solidified soil, and relates to the field of hydraulic engineering materials. The curing agent comprises a powder curing agent and a liquid curing agent, and the mass ratio of the powder curing agent to the liquid curing agent is (5-15): (0.1-0.6); the powder curing agent comprises sulphoaluminate cement, superfine slag powder, fly ash, gypsum powder, plant ash, silica powder, alkaline residues, hydroxypropyl methyl cellulose, polyvinyl alcohol, an exciting agent and a water reducing agent; the liquid curing agent comprises deionized water, sodium methyl silicate, potassium methyl silicate and polydimethylsiloxane. The raw materials of the high-flow-state solidified soil comprise slurry, fine sand and a curing agent. The application refers to the application in underwater structure scour pit protection. The construction method has the advantages in the aspects of underwater construction, scouring resistance, compact filling, bearing and the like, and the constructability, adaptability, durability and safety of the solidified soil in the aspect of underwater structure protection are improved.

Belonging to the technical field of insecticides, the invention discloses a sterilization insecticide, which comprises the following raw materials by weight: 20-40 parts of water; 0.1 to 0.5 part of herb of lindera glauca; 0.1 to 0.5 part of rhododendron molle; 0.2 to 0.7 part of Japanese raspberry root; 0.1 to 0.5 part of typhonium giganteum; and 0.1 to 0.5 part of Aconitum aureum. 0.1 to 0.5 part of pinellia ternate; 0.05 to 0.4 part of plant ash; 0.2 to 0.8 part of white spirit; according to the invention, the reagent with sterilizing and insecticidal effects can be obtained by rapidly proportioning water, herb of lindera glauca, rhododendron molle, root of Japanese raspberry, typhonium giganteum, root of aconitum var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var

The application belongs to the technical field of tea processing, and discloses a carbon roasting quality improving method for Zhangping Shuixian tea, which comprises the following steps: taking charcoal, and burning until the charcoal is red and has no residual smoke; transferring the stable charcoal fire to a roasting furnace, and covering a layer of wood ash on the stable charcoal fire; taking Zhangping Shuixian tea cakes with a water content of 55%-65%, and uniformly spreading the tea cakes on the roasting furnace; adopting a three-stage step-down temperature process for roasting, and the first stage is to control the ambient temperature above the roasting furnace to be 90-100 DEG C, and the roasting time is 60 minutes; the second stage is to control the ambient temperature above the roasting furnace to be 80-90 DEG C, and the roasting time is 100-120 minutes; and the third stage is to take the leaf surface temperature of the Zhangping Shuixian tea cake as a target, control the leaf surface temperature to be 70-75 DEG C, and the roasting time is 180-240 minutes, and during the roasting process, each Zhangping Shuixian tea cake is turned over 1-2 times; through the three-stage step-down temperature process and taking the leaf surface temperature as the final control target, the roasting parameters are quantified, the product quality is stable and consistent, the aroma and the taste thickness of the Zhangping Shuixian tea are improved, and the Zhangping Shuixian tea is more resistant to storage.

This invention discloses a method for preparing an acidic soil conditioner, belonging to the field of soil improvement technology. This method uses dolomite powder, phosphogypsum, and wood ash as core raw materials, without adding any additional components. By precisely controlling the raw material pretreatment parameters, mixing ratios, activation reaction conditions, and post-treatment processes, the prepared acidic soil conditioner can rapidly adjust soil pH, improve soil fertility and water retention capacity, and continuously improve soil physicochemical properties, suitable for various acidic soils (pH 3.5~6.0). The preparation process of this invention is simple, highly controllable, has high raw material utilization, produces no harmful byproducts, and has low preparation costs. The mixing ratio formulas and reaction parameter formulas involved are all independently designed.

The invention relates to the technical field of straw recycling, and discloses an agricultural straw recycling combustor which comprises a combustion furnace provided with a spherical shaking cavity and a plant ash opening, a shaftless screw conveyor is arranged on the outer wall of one side of the upper portion of the combustion furnace, a feeding hopper is arranged on the shaftless screw conveyor, and a lifting mechanism is arranged at the top of the combustion furnace; a rotating shaft is rotatably connected to the inner wall of the top of the combustion furnace, a first sliding sleeve is slidably connected to the outer wall of the rotating shaft, a plurality of poke rods are fixedly connected to the outer wall of the first sliding sleeve at equal intervals, the lifting mechanism can make the poke rods on the first sliding sleeve move up and down in a reciprocating mode, and a fixing ball is rotatably connected to the outer wall of the rotating shaft; and the outer wall of the fixing ball is rotationally connected with an incineration shaking plate. Through multiple linkage structures such as stirring, shaking, gas pushing and impacting, straw is fully loosened and combusted, plant ash residues are efficiently cleaned, blockage is prevented, and the combustion efficiency and stability are greatly improved.

The utility model relates to the technical field of food processing, and discloses a smoking oven for food processing, which comprises a cabinet body; the fumigation assembly comprises a drawer, a tray, heat conducting plates and an outer cover, the outer cover is fixedly installed at the bottom of the cabinet body, the drawer is connected with the outer cover in an inserted mode, the tray is detachably connected with the outer cover, the heat conducting plates abutting against the top face of the outer cover are fixedly installed at the end of the tray, and a collecting cavity is formed in the top of the tray. Smoke is exhausted upwards from a smoke outlet, one part of smoke rises naturally, the other part of smoke is extracted to the upper portion through a draught fan, convection of the upper smoke and the lower smoke enables meat on the multiple supporting plates in the cabinet body to keep the consistent smoking effect, grease generated in the meat smoking process on the supporting plates is loaded through the trays, and wood ash generated after combustion in the drawers is further placed in the collecting cavity. The grease is adsorbed through the wood ash, so that the grease is conveniently collected and adsorbed, and the caked wood ash and grease are easier to clean.

This invention relates to a Jian ware tea bowl with golden hare's fur glaze. Specifically, this invention provides a preparation process for a golden hare's fur Jian ware tea bowl, which includes the following steps: preparing a body, wood ash, and glaze slurry; applying the glaze slurry to the body; and firing the glazed body to obtain the golden hare's fur Jian ware tea bowl. The golden hare's fur Jian ware tea bowl prepared by the process described in this invention has a unique and beautiful appearance, thus possessing profound artistic connotation and charm, thereby enhancing the artistic and aesthetic level of Jian ware tea bowls.

The invention discloses a low-water-absorption high-strength porous pelelith lightweight aggregate and a preparation method thereof, and relates to the technical field of artificial lightweight aggregates for building materials. Porous pelelith particles are used as a porous core part, and low-melting-point glass powder, plant ash, fly ash, coal gangue, fluorite and the like are used as surface coating raw materials. The preparation method comprises the following steps: shaping porous pelelith particles, weighing and homogenizing coating raw materials in proportion to obtain composite powder, uniformly coating the surfaces of the shaped porous pelelith particles with the composite powder by using a granulator, fully drying, sintering, and finally cooling along with a furnace. The lightweight aggregate has the advantages of low water absorption rate, high cylinder compressive strength and the like, and can meet the performance requirements of the lightweight aggregate for concrete; meanwhile, the adopted coating raw materials are mainly various solid low-melting-point materials or low-cost materials, and the resource utilization scene of the solid low-melting-point materials can be further expanded; and the heat treatment temperature is as low as 250 DEG C, so that the energy-saving effect is obvious.

A compound microbial agent for enhancing corn yield, its preparation method, and its application are disclosed, relating to the fields of agriculture and biotechnology. Replacing traditional chemical fertilizers with this compound microbial agent can effectively improve crop growth and reduce environmental pollution. The compound microbial agent comprises a compound bacterial solution and a compound carrier. The compound bacterial solution includes a suspension of Enterobacter and a suspension of Pseudomonas, while the compound carrier includes wood ash, vermiculite, sodium carboxymethyl cellulose, trehalose, and humic acid. The method involves mixing the Enterobacter and Pseudomonas suspensions to form the compound bacterial solution; then mixing the compound bacterial solution with the compound carrier at a 1:1 volume ratio, air-drying, maturing, and adjusting the moisture content to obtain the compound microbial agent. This agent can improve soil physicochemical properties, promote corn growth, and achieve the goal of increasing yield and income.

This invention provides a high-efficiency seedless grape cultivation technology. Through systematic innovation in seed pretreatment, compound growth regulator formulation, substrate optimization, and precise cultivation management, it overcomes traditional technological bottlenecks. Seed pretreatment employs a quicklime-distilled water activation method combined with wood ash-milk fermentation and ultrasonic-assisted treatment, significantly improving embryo activity and germination rate. The growth regulator is a golden ratio compound of gibberellin and chlorpyrifos, applied to the flower spikes twice, with sodium tungstate added to prolong efficacy, achieving a seedless rate >95% and a 20%-30% increase in berry weight. The substrate uses a multi-stage formulation system, adjusted to pH 5.0-5.5 after low-temperature sterilization, and incorporates 5% biochar to enhance water retention and pollution resistance. Innovative cultivation management includes optimized H-shaped trellis system combined with rain-sheltered cultivation and precise water and fertilizer management, resulting in a stable yield of over 1500 kg / mu, extended shelf life to 15 days, and a cultivation cycle shortened to 2 years before fruiting. This technology comprehensively improves fruit quality and planting efficiency, demonstrating significant application value.

The application discloses a kind of biochar-based solar evaporator suitable for biogas slurry concentration and preparation method and application thereof, belong to biogas slurry resource utilization field.The biochar-based solar evaporator of the application is prepared by "activation pore-forming-surface blackening" two-step method, with the raw material derived from agricultural and forestry waste (including high corn stalk, corn stalk, bamboo, corn cob, etc.), using grasswood ash, soap nut alkali, shell powder to prepare hot alkali solution to slightly remove agricultural and forestry waste lignin to increase the diameter and number of internal pores of evaporator, and by high-temperature iron plate blackening to obtain black surface layer, synergistically realize the light-heat conversion, water transport and nutrient reflux of biochar-based solar evaporator in biogas slurry concentration process.The application first applies the biochar-based solar evaporator produced from agricultural and forestry waste to biogas slurry nutrient concentration, not only realizes "waste treatment, waste into treasure", but also greatly improves the application value of biogas slurry.

The utility model discloses an automatic supporting device of a joinery band-sawing machine, which relates to the technical field of joinery band-sawing machines and is technically characterized by comprising a machine body, a working table is fixedly connected onto the machine body, a bottom plate is fixedly connected to the lower end of the machine body, and a guide mechanism is arranged on the working table. The guide mechanism is arranged to limit the two sides of plates with different widths, it is guaranteed that the plates cannot deviate in the cutting process, the dust collection mechanism is arranged to adsorb wood ash generated by cutting the plates, the dust collection mechanism is arranged, the dust collection mechanism is arranged on the bottom plate, and the supporting mechanism is arranged on the bottom plate. And the influence of wood ash on the health of workers is avoided, the supporting mechanism is arranged to support the suspended part of the long plate, and the stability during plate cutting is improved.

The invention discloses a fertilizer for increasing the flavone content of Chinese yam tubers and a preparation method thereof, and relates to the technical field of fertilizers. The fertilizer comprises the following raw materials: 10-20 parts of tobacco straws, 8-16 parts of Chinese yam vines, 5-12 parts of mushroom dregs, 12-22 parts of sugarcane ash, 6-12 parts of plant ash, 35-45 parts of harmless animal byproducts, 20-27 parts of chicken manure, 15-20 parts of pig manure, 10-16 parts of pigeon manure, 5-10 parts of wormcast and 2-8 parts of a microbial agent. Harmless animal byproducts, tobacco straws, Chinese yam vines, mushroom dregs, livestock and poultry manure, sugarcane ash and plant ash are used as a raw material combination, the raw material combination is fermented by adopting a specifically combined microbial agent, and a mode of anaerobic fermentation and aerobic fermentation is adopted during fermentation; the fertilizer obtained through fermentation contains a large number of substances capable of improving the soil microenvironment, inducing stress resistance signals of the Chinese yam and stimulating generation of flavonoids of the Chinese yam, and the flavonoids content of the Chinese yam can be remarkably increased when the fertilizer is used for planting the Chinese yam.

The application provides a kind of based on red mud raw material geopolymer alkali activator and its preparation method, belongs to geopolymer material technical field.The method of the application includes the following steps: under the condition of stirring and heating, red mud and wood ash are gradually added into sodium chloride solution to form a mixed solution, the mass ratio of red mud and wood ash is (3-6):1, and the solid-liquid mass ratio of red mud and sodium chloride solution is 1:(3-6);the pH value and Na2O release amount of the system are continuously detected, when the pH value of the system is greater than or equal to 12.0 and the change amount within 30 minutes is less than 0.1, steel slag powder is added, the addition amount is 1-5% of the total mass of the mixed solution, and stirring is continued for 20-60 minutes;when the pH value of the system is stable and no longer increases within 2 hours or the Na2O release amount reaches equilibrium, solid-liquid separation is carried out, and the obtained filtrate is the geopolymer alkali activator.The application can reduce the dependence on traditional high-alkaline chemicals and provide a new way for the resource utilization of red mud.

The utility model relates to the technical field of astragalus mongholicus planting, in particular to a plant ash fertilizing device for imitating wild astragalus mongholicus planting, which comprises two groups of symmetrically arranged supporting frames, a main motor is mounted on the supporting frames, the output end of the main motor is fixedly connected with a screw rod, and the screw rod is positioned between the two groups of supporting frames. The fertilizing device has the advantages that the shovel plate, the conveying pipe and other components with special structures are arranged, in the fertilizing device, the shovel plate is an S-shaped curved plate, the rotating frame is integrally formed on the bottom surface of the shovel plate, the conveying hole and the scattering hole are formed in the rotating frame, and the conveying pipe is communicated with the bottom of the hopper and communicated with the conveying hole. After the shovel plate shovels up soil, plant ash falls into the ground from the material scattering holes below the shovel plate, the soil falls back to the ground along the upper surface of the shovel plate again along with the overall advancing of the sliding block and the hopper, the laid plant ash is covered, plant ash flying is avoided, and the ingenious structural design for preventing plant ash flying possibly lacks in the prior art.

The application discloses a preparation method of anti-freezing concrete and relates to the technical field of high polymer materials. The preparation method comprises the following steps: step one: after bentonite and diatomite are crushed, the bentonite and the diatomite are calcined under high temperature and in a nitrogen atmosphere to obtain calcined particles; then, the calcined particles, wood ash, calcium chloride and water are uniformly stirred in a stirrer; after reaction at 60 DEG C-80 DEG C for 4h-8h, a viscous mixture is obtained; step two: triethanolamine, sodium phosphate, melamine, methyl cellulose ether, polyacrylamide, calcium carbonate and water are mixed and subjected to oil bath reaction to obtain an anti-freezing modifier; step three: the viscous mixture, the anti-freezing modifier, Portland cement, machine-made sand, sodium lignosulfonate, polycarboxylate and water are stirred and mixed, and then poured into a mold; after curing and demolding, the anti-freezing concrete is obtained. The synergistic effect of various raw materials is achieved through mutual cooperation of their respective characteristics and functions, so that the compressive and anti-freezing properties of the concrete are improved.

The invention provides special nutrient soil prepared from agricultural and fishery wastes and a preparation method of the special nutrient soil, and belongs to the technical field of seedling culture substrates. The special nutrient soil for the Ouly uses the zizania latifolia leaves, the fishery product leftovers and the rice bran oil processing wastes as core raw materials, so that the cost is greatly reduced. The perlite, the vermiculite and the composted zizania latifolia leaves cooperate with one another, so that the total porosity meets the requirement of Eumonthly on the high-porosity nutrient soil. The pH value is regulated and controlled through sulfur powder and plant ash, three types of decomposed waste are matched with calcium superphosphate and plant ash, a nutrient supply curve of early-stage slow release and flowering-stage quick release is constructed, and the requirement for nutrition in the growth period of Europe is met. According to the preparation method, through the three-stage process of pretreatment, directional decomposition and mixing and blending, synergistic recycling of three kinds of waste is achieved, pollution is reduced, ecology is protected, the fermentation period is short, the preparation cost is low, the defect of a single waste substrate is avoided, nutrient soil completely adapts to Euphorbia growth, the resource utilization rate is increased, and large-scale production is facilitated.

The invention relates to the technical field of concrete, in particular to a process method for preparing autoclaved aerated concrete bricks from plant ash. Comprising the following steps: screening raw plant ash, treating with carbon dioxide gas, washing with water, drying, and oxidizing at a low temperature of 420-480 DEG C to obtain plant ash micro powder; mixing the micro powder with water, sequentially adding calcium hydroxide, a water reducing agent, silica sol and a nonionic surfactant, introducing carbon dioxide to adjust the pH value, aging, washing and drying to obtain modified micro powder; stirring the modified micro powder with ingredients such as cement and gypsum, adding calcium oxide and a defoaming agent step by step, then adding a hydroxypropyl methyl cellulose thickening liquid and aluminum paste, and carrying out pouring gas forming, pre-curing, cutting and autoclaved curing to obtain a finished product. The method effectively solves the problems of poor stability of the plant ash slurry and easy mold collapse of the green body, and the product has low density, high strength and excellent durability.

The application discloses a kind of compound cement-based concrete of doping pyrite and wood ash, including the following weight parts of raw materials: cement 438 parts;Fly ash 27.35-82.05 parts;Rubble 1182 parts;Sand 430.1-480.7 parts;Pyrite fine sand 25.3-75.9 parts;Wood ash 27.35-82.05 parts;Water reducing agent 8.0-8.2 parts;Water 161 parts.The application is by simultaneously doping 15% pyrite in sand instead of sand, doping 15% wood ash in cement and fly ash instead of fly ash, the mechanical property of concrete is improved most, early strength, cubic compressive strength, tensile strength, elastic modulus can be greatly improved, it can be inferred that wood ash-pyrite improves the overall mechanical property of concrete, wood ash-pyrite can effectively improve the toughness, impact resistance and crack resistance of concrete.The mechanical property of the concrete of the application is obviously superior to the superposition of the concrete of doping wood ash alone and the concrete of pyrite fine sand, and reflects the effect of 1+1>2.

The application discloses grass-wood-ash black glaze and a preparation method thereof, and relates to the technical field of glaze preparation. The grass-wood-ash black glaze is prepared from the following raw materials in parts by weight: 50-60 parts of silicon dioxide, 9-12 parts of aluminum oxide, 7-10 parts of calcium oxide, 1-3 parts of magnesium oxide, 4-6 parts of diiron trioxide, 2-6 parts of potassium oxide, 3-8 parts of fluorcarbonate, 5-10 parts of lithium mica, 12-15 parts of quartz stone, 2-4 parts of potassium feldspar, 5-8 parts of plagioclase, 7-10 parts of calcite, 30-35 parts of dolomite, 20-25 parts of illite, 6-9 parts of illite-smectite mixed layer, 5-8 parts of chlorite, 3-5 parts of kaolinite and 10-20 parts of grass-wood-ash. The glaze surface of the grass-wood-ash black glaze has a unique artistic effect of blue-violet kiln-change flow lines on a dark green base, has the advantages of high color saturation, low sintering temperature, unique artistic effect and the like, and has good environmental protection and antibacterial properties.

This invention discloses a green and ecological planting method for daylilies, belonging to the field of agricultural planting technology. It addresses the technical problems of excessive reliance on chemical fertilizers and traditional mulching in current daylily cultivation, leading to soil ecological imbalance and low fertilizer utilization. The method includes: applying organic fertilizer made from cow and sheep manure and Asteraceae plant residues through aerobic composting, using a layered strip application method. First, fully decomposed organic fertilizer is applied as a base fertilizer layer in the planting furrow, followed by semi-decomposed organic fertilizer that has completed the main fermentation stage but not the later aging stage as a middle layer fertilizer; after land preparation and ridging, wood ash is spread on the ridge surface, followed by the laying of black fully biodegradable mulch film; finally, holes are made in the mulch film for daylily seedling planting. This method is mainly used for sustainable ecological planting of daylilies, improving soil fertility and structure, regulating soil pH and providing potassium, conserving moisture and suppressing weeds while avoiding residual pollution, thereby increasing daylily yield and quality while reducing environmental impact.

The present application relates to a kind of high-efficiency sludge dewatering agent and its preparation method, belong to high polymer material technical field.The high-efficiency sludge dewatering agent includes by weight portion: modified polyacrylamide 10-30 parts, modifier 5-10 parts, polyaluminum chloride 15-25 parts, deionized water 40-50 parts, diatomite 1-2 parts, activated carbon 1-2 parts, calcium oxide 1-3 parts, wood ash 1-3 parts;The high-efficiency sludge dewatering agent prepared by the present application not only has good dewatering effect, but also has excellent sterilization effect.

The invention discloses an evaluation method for preventing and controlling grain storage pest maize weevils by using plant ash. The method comprises the following steps: (1) preparing evaluation materials; (2) acquiring death rate data of the maize weevils; (3) analyzing physical parameters of the plant ash, (4) analyzing correlation between the death rate of the maize weevils and the physical parameters of the plant ash, and (5) determining the range of the physical parameters of the plant ash. By analyzing physical parameters such as particle size distribution, hole state, oil absorption value, angle of repose, density and the like of plant ash and combining death rate data of maize weevil, a correlation model of the physical parameters and the insecticidal effect is established, and the range of key physical parameters of the plant ash with the good insecticidal effect is preliminarily determined; theoretical support is provided for quickly and accurately selecting and preparing efficient insecticides.

The invention discloses a root limiting culture medium and a preparation method thereof. The medium is prepared from the following components: red soil, stone millet, humus soil, turf and plant ash. The matrix is prepared from the following raw materials in parts by volume: 15-25 parts of red soil, 30-50 parts of stone millet, 20-40 parts of humus soil, 2-8 parts of turf and 3-7 parts of plant ash. According to the formula of the substrate composed of the red soil, the stone millet, the humus soil, the turf and the plant ash in a specific proportion, the root-limited cultivation effect of the citrus is effectively improved, the substrate is excellent in volume weight, pH value, water holding capacity, organic matter content, service life and the like, and growth of citrus root systems and improvement of the yield are effectively promoted.

The invention relates to the technical field of wastewater treatment, in particular to a white wine cellar bottom water resource recycling method which comprises the following steps: 1, adding mineral substances into white wine cellar bottom water; the mineral substances comprise diatomite and / or plant ash; 2, performing magnesium ion addition treatment and pH regulation treatment on the cellar bottom water obtained after the minerals are added in the step 1, and fully reacting to obtain a precipitate and a clear liquid; the molar ratio of the magnesium ions to the phosphate ions is (0-3): 1 in the cellar bottom water after the magnesium ions are added into the cellar bottom water; pollutants are adsorbed by adding plant ash or diatomite, a synergistic effect of adsorption-concentration-crystallization is formed by coupling with a struvite crystallization technology, key pollution factors (phosphorus and nitrogen) in cellar bottom water are efficiently, deeply and synchronously removed, and the finally generated struvite-mineral complex is an ideal slow-release fertilizer. And the purity of struvite reaches 92%.