215 results about "Wood ash" patented technology

The invention discloses a blue-and-white glaze and a preparation method and application thereof, and belongs to the technical field of inorganic non-metallic materials (ceramics), the blue-and-white glaze comprises quartz, feldspar, limestone, plant ash and other basic raw materials, zinc oxide, aluminum oxide, lanthanum oxide, cerium oxide and other rare earth elements, and a modified organic additive is introduced. Compared with the prior art, the blue-and-white glaze shows excellent stability in the drying and firing process, the phenomena of cracking and glaze stripping are effectively reduced, the friction coefficient after firing is low, the breaking strength and the breaking modulus are high, the glossiness and transparency of a glaze surface are remarkably improved, and the blue-and-white glaze has important application value.

The invention discloses an element liquid fertilizer for promoting nutrient absorption and a preparation method thereof, and belongs to the technical field of fertilizers. Comprising monoammonium phosphate; urea; potassium nitrate; cake fertilizer leach liquor; trace elements; a wetting agent; a stabilizer; a biological agent; an adsorbent; deionized water; the preparation method of the adsorbent comprises the following steps: A1, taking loofah sponge powder, and removing lignin and hemicellulose to obtain loofah sponge cellulose powder; a2, mixing the loofah sponge cellulose powder, deionized water, a chitosan solution and plant ash, mechanically pulping uniformly, performing vacuum freeze-drying treatment to form holes, crushing and grinding to obtain the adsorbent, root development can be promoted, elongation and thickening of stems are promoted, the photosynthetic rate of plants is increased, and the crop yield is increased.

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 invention discloses a method for synergistically preparing a carbon-based soil conditioner from coal gangue and straw, and relates to a method for preparing the carbon-based soil conditioner. The invention aims to solve the technical problem that a large amount of coal gangue and agricultural straws are accumulated as wastes in the prior art to cause harm to the environment. The preparation method comprises the following steps: firstly, carrying out ultramicro activation pretreatment on coal gangue through mechanical grinding; then, adopting a double-atmosphere segmented pyrolysis process: generating a plant ash silicon fertilizer rich in KCl and K2CO3 in an air atmosphere; preparing a biochar material with a hierarchical porous structure under the protection of nitrogen; accurate compounding of the activated silicon fertilizer and the porous biochar is achieved through solid-phase mixing, finally, the activated silicon fertilizer and the porous biochar cooperate with the vinegar residue organic material to form the organic-inorganic composite carbon-based soil conditioner, the soil conditioner has the weakly acidic pH regulation and control function, the mineral nutrition slow release characteristic and the multi-scale pore structure characteristic, formation of saline-alkali soil aggregates is effectively promoted, the soil structure is improved, and the soil quality is improved. The volume weight of soil is reduced, and the effectiveness of phosphorus and the bioavailability of silicon are remarkably improved.

The invention relates to the technical field of drilling fluid preparation, in particular to slim-hole horizontal well drilling fluid and a preparation method thereof.The drilling fluid is prepared from, by weight, 100 parts of clear water, 15-20 parts of bentonite, 12-15 parts of functional auxiliaries, 12-15 parts of weighting agent, 8-10 parts of stabilizer and 8-10 parts of lubricant. According to the drilling fluid, the plant ash and the activated carbon powder are subjected to gelatinization reaction after being mixed with the corn starch and are combined to generate a rich pore structure, after the functional additive is used as a raw material to prepare the drilling fluid, a granular layer can be generated on the surface of the drilling fluid by utilizing the rich pore structure and the superfine powder state of the functional additive, and in the drilling process, the surface of the drilling fluid can be effectively protected. The existence of the granular layer can destroy the liquid level tension, so that the contact area of the liquid level of the drilling fluid and air is increased, the heat dissipation efficiency of the drilling fluid is improved, and the stable performance of the drilling fluid in a high-temperature state is ensured.

The utility model relates to a novel Chinese chive harvesting device which comprises a machine frame, a gathering mechanism and a cutting mechanism, a plurality of wheels are arranged at the bottom of the machine frame, the gathering mechanism comprises two conical barrels arranged at intervals, the conical bottoms of the conical barrels face backwards and are rotationally connected to the front portion of the machine frame, and the cutting mechanism is arranged behind the gathering mechanism and connected with the machine frame. The first conveying mechanism is obliquely arranged on the rack, the first conveying mechanism comprises two sets of conveying assemblies arranged side by side, the ash scattering mechanism comprises a feeding port, an ash scattering pipe and a spiral conveyor, and the packaging mechanism is arranged behind the first conveying mechanism and connected to the rack; and the packaging mechanism is used for packaging the cut Chinese chives. According to the novel leek harvesting device, under the condition that leeks on the ground can be harvested and packaged, the functions of preserving moisture and fertilizer and scattering plant ash are achieved, the production efficiency is improved, the quality of the leeks is guaranteed, and farmers can conveniently store and sell the leeks.

The invention relates to the field of organic fertilizer production, in particular to an organic fertilizer, organic fertilizer production equipment and an organic fertilizer production method.The method comprises the following steps that firstly, organic fertilizer raw materials are introduced between two processing cavities; 2, the organic fertilizer raw materials are stirred through a stirring mechanism, and gas is introduced into the organic fertilizer raw materials in the stirring process of the stirring mechanism; 3, the organic fertilizer raw materials are kept fluffy in the mixing process; the invention relates to an organic fertilizer, which comprises the following raw materials by weight: 20-22 parts of straw; 15 to 18 parts of animal waste; 5-8 parts of plant ash; 2-6 parts of phosphate fertilizer, 5-8 parts of potash fertilizer and 2-6 parts of nitrogen fertilizer.

The invention discloses a plant ash loaded cation modified chitosan-polyacrylamide efficient sludge dehydrating agent as well as a preparation method and application thereof, and belongs to the technical field of sludge dehydration. The preparation method of the efficient sludge dehydrating agent comprises the following steps: firstly, carrying out cationic grafting modification on chitosan by adopting dimethyl diallyl ammonium chloride, and then introducing the cationic grafting modified chitosan and polyacrylamide into the surface of plant ash, so that the surface of the plant ash is obviously changed; and a discontinuous, multi-gap, disordered and irregular multi-layer structure is presented. The specific surface area of the plant ash is increased by introducing the cationic grafting modified chitosan and the polyacrylamide, and the complex surface structure is beneficial for the plant ash to generate gaps which are difficult to compress in a sludge filter cake in the sludge dewatering process, so that the dewatering performance of the sludge is improved.

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 provides a preparation method of artificial oven subsoil. The preparation method comprises the following steps: firstly, mixing shrub ash, rice hull ash and wormwood ash in proportion to prepare plant ash, then mixing calcined and crushed oyster shells and plant ash, adding water, washing and removing impurities to prepare mortar, and then adding loess powder for injection molding; drying at the temperature of 250-350 DEG C, oxidizing at the temperature of 450-650 DEG C and reducing at the temperature of 750-850 DEG C to finally obtain the artificial oven subsoil. According to the method, the natural production process of traditional oven subsoil is simulated, the compound structure and effective component composition of the natural oven subsoil are successfully reproduced, the obtained product is stable in component and quality, the content of heavy metal and pesticide residues meets the safety standard, and the problems that natural resources are exhausted, and the quality of the oven subsoil all over the country is uneven are effectively solved.

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 invention provides a method for roasting-leaching clay type lithium ore by replacing a roasting aid with biomass, and belongs to the technical field of ore dressing processes. According to the method, the plant ash generated after biomass combustion is used for replacing part of alkali-containing salt or alkali in the clay type lithium ore so as to achieve the purpose of alkali roasting-water leaching, the sintering condition of a roasting auxiliary and the clay type ore can be effectively reduced through addition of the plant ash, and bulk consumption of solid waste of the plant ash is achieved. The invention provides a mixed roasting-water leaching method of plant ash generated after biomass combustion and clay type lithium ore, so that the consumption of a roasting auxiliary agent is greatly reduced (the consumption of an alkaline agent is reduced by 50-80%), the phenomenon that the roasting auxiliary agent and the clay type ore are easy to sinter at high temperature is improved, clean and effective utilization of biomass is realized, and the method is suitable for industrial production. The lithium obtained through the method is high in leaching rate and low in cost.

The present invention discloses a damping cloth for final polishing of optical elements and a preparation process thereof, belonging to the technical field of damping cloth. A damping cloth for final polishing of optical elements comprises an elastic base layer, a water-repellent layer and an abrasive layer in sequence from the polishing contact surface to the adsorption surface. The water-repellent layer comprises a water-isolating layer and a buffer layer. The buffer layer is made of a polyurethane foam material containing modified glass powder, and the water-isolating layer is a polyurethane waterproof film. The present invention solves the problem that the surface of the existing damping cloth is prone to bacterial growth and mildew. The present invention proposes a damping cloth for final polishing of optical elements and a preparation process thereof. The elastic base layer adopts a structure in which an outer layer covers a fabric layer, thereby improving the flatness of the entire damping pad. The wood ash component in the modified glass powder can increase the alkalinity of the polishing liquid. The wood ash itself has a bactericidal effect, which can prevent the damping cloth from breeding bacteria and mildew, thereby improving the service life of the damping cloth.

A kind of akebia trifoliata seed seedling method, comprising the following steps: selecting suitable nursery land;Organic fertilizer is applied, soil is ploughed, and seedbed is made;Sterilize to seedbed ridge surface, after sterilization, forest humus and wood ash are covered on seedbed ridge surface, then mulch is covered on seedbed;Fully mature akebia trifoliata fruit is collected, seed is taken, washed, and dried;Seed is soaked with carbendazim solution, after soaking, seed is mixed with clean river sand, then covered with straw, placed in cool place, daily water is sprayed to ensure that straw is wet, until seed is white to reach requirement;According to predetermined plant spacing, hole is dug on seedbed ridge surface, white seed is placed in each hole, covered with forest humus, then covered with straw to conserve soil moisture;Seedling emerges, seedbed is cultivated and weeded, leaf is unfolded, and pinching is carried out, and interval seedling is carried out when pinching is carried out.The akebia trifoliata seed seedling method of the application can reduce akebia trifoliata seed disease occurrence, and improve akebia trifoliata seed survival rate.

The application provides a preparation of a fermentation bed and application of waste of the fermentation bed in preparation of special organic fertilizer for rice, belongs to the technical field of livestock breeding, and specifically relates to a fermentation bed for cattle breeding, which comprises raw materials: rice straw, rice husk, quicklime, corn flour, wheat bran, sawdust and mixed bacteria liquid A; the mixed bacteria liquid A comprises Bacillus subtilis, Clostridium butyricum, Rhodopseudomonas palustris, Saccharomyces cerevisiae and Lactobacillus acidophilus; and a special organic fertilizer for rice, which comprises components: the above-mentioned waste fermentation bed, rice straw, rice husk, wood ash, mixed bacteria liquid B and mixed enzyme preparation; the provided fermentation bed can effectively degrade cattle manure, solve the problem of dirty and smelly breeding environment, and effectively reduce the incidence of diseases such as cattle diarrhea; and the provided special organic fertilizer for rice meets the nutritional requirements of rice planting, improves the yield and stress resistance of rice, and prevents or reduces the occurrence of diseases.

The present invention relates to the technical field of drilling fluid preparation, specifically to a small borehole horizontal well drilling fluid and a preparation method thereof, wherein the drilling fluid comprises the following raw materials by weight: 100 parts of clean water, 15 to 20 parts of bentonite, 12 to 15 parts of functional additives, 12 to 15 parts of weighting agents, 8 to 10 parts of stabilizers and 8 to 10 parts of lubricants. In the present invention, plant ash and activated carbon powder undergo gelatinization reaction after being mixed with corn starch, and a rich pore structure is generated by combining. After the functional additive is used as a raw material to prepare the drilling fluid, a granular layer can be generated on the surface of the drilling fluid by utilizing its rich pore structure and ultrafine powder state. During the drilling process, the presence of the granular layer can destroy the liquid surface tension, increase the contact area between the liquid surface of the drilling fluid and the air, improve the heat dissipation efficiency of the drilling fluid, and thus ensure the stable performance of the drilling fluid under high temperature conditions.

The invention relates to the technical field of agricultural management, in particular to a cherry pest and disease prevention device which comprises an arc-shaped air guide shell, the outer wall of the arc-shaped air guide shell is in a step shape, the outer diameter of the arc-shaped air guide shell is gradually reduced in equal proportion from bottom to top, and a combustion chamber mechanism is arranged at the bottom of the arc-shaped air guide shell. The combustion chamber mechanism is matched with the inner wall of the bottom of the arc-shaped air guide shell, and the combustion chamber mechanism is used for combusting deadwood and rotted leaves; the deadwood and rotten leaves are placed in the combustion chamber mechanism to be incinerated, germs and worm eggs in the deadwood and rotten leaves can be killed, and smoke generated by combustion is conducted to tree crowns through smoke outlets so that the effect of smoke fumigation and deinsectization on the tree crowns can be achieved; meanwhile, the plant ash generated by combustion can kill worm eggs and germs in soil around the roots of the cherry trees, the effect of environment-friendly killing of plant diseases and insect pests of the cherry trees is achieved, and due to the fact that deadwood and rotten leaves with the plant diseases and insect pests are cleared away, the plant diseases and insect pests are not prone to relapse.

This invention discloses a method for preparing recycled planting soil from river dredging soil. First, 0.5-1% wt quicklime and 20-30 g / cubic meter of chloropicrin are mixed into low-moisture dredging soil cake, then covered with a film and left to stand at room temperature for 3-4 days to allow the ash to settle. Next, 1-2% wt wood ash, 1-3‰ wt indoleacetic acid, and 3-6% wt magnesium peroxide are mixed into the sterilized dredging soil. Finally, a soil layer structure is laid, thereby creating a planting environment that promotes plant root growth. This invention's preparation method is simple, resource-efficient, and environmentally friendly. It effectively solves the problems of low plant survival rates and slow growth when dredging soil is directly used for planting, and alleviates many problems associated with storing dredging soil.

The invention relates to the field of fertilizers, in particular to an environment-friendly fertilizer and a preparation method thereof. The preparation method of the environment-friendly fertilizer comprises the following steps: S1, chopping straws, and adjusting excrement until the excrement is clustered without scattering by hand holding and water cannot drop in finger gaps; s2, laying a layer of straw in the compost box, laying a layer of excrement on the straw, then scattering a layer of plant ash, and stacking layer by layer without height limitation; s3, separating the fertilizer pile up and down from the middle of the fertilizer pile through two insertion plates to promote oxygen supply and uniform fermentation; s4, the materials are black brown, odorless and musty, and the straws are fragile, so that the decomposition standard is met. The environment-friendly fertilizer is prepared from the following raw materials in parts by weight: 5 parts of straw, 3 parts of excrement and 5 parts of plant ash. And ventilation can be facilitated during composting.

The method comprises the following steps: grinding and sieving phosphate tailings, weighing a certain amount of phosphate tailings, adding deionized water according to a certain solid-to-liquid ratio, preheating in a constant-temperature water bath, and heating and stirring; adding a phosphoric acid solution at a certain temperature, and stirring to react for a period of time; after the reaction is finished, drying a product in a drying oven, and grinding to obtain modified phosphate tailings; mixing phosphate tailings, the modified phosphate tailings, plant ash, humic acid and charcoal to obtain phosphate tailing soil; the phosphate tailing soil is used for planting plants, so that phosphate tailing waste utilization is realized; the phosphorus tailings are treated into the soil for plant growth, the preparation process is simple, the energy consumption is low, the problems of land resource occupation, environmental pollution and the like caused by phosphorus tailings stacking are relieved, resource utilization of the phosphorus tailings is achieved, and a solution is provided for reduction and resource utilization of the phosphorus tailings.

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 discloses a composite seed dressing agent for preventing and treating corn stem base rot and a preparation method thereof, and belongs to the field of planting technology. The composite seed dressing agent for preventing and treating corn stem base rot of the invention comprises the following raw materials by mass percentage: 2-2.5% of captan, 2-3% of sunflower extract, 3-4% of cyperus rot extract, 5-6% of triethyl aluminum phosphate, 4-8% of glutamic acid, 5-7% of alanine, 10-15% of humic acid, 10-15% of plant ash, 10-12% of compound fertilizer, 4-5% of polyvinyl alcohol, 5-8% of silicon dioxide, and the balance is kaolin. The composite seed dressing agent of the invention can effectively prevent and treat corn stem base rot, has a stable prevention and treatment effect, and can reduce the dosage of chemical agents, avoiding the problems of pesticide residues and drug resistance.

The utility model discloses a solar energy leek harvesting all-in-one machine which comprises a chassis and a frame body, the frame body is fixedly connected with the top of the chassis, a driving mechanism is arranged at the bottom of the chassis, a gathering mechanism used for gathering leeks is arranged at the front end of the chassis, and a cutting mechanism is further arranged at the bottom of the chassis. The gathering mechanism is provided with a conveying mechanism connected with the gathering mechanism and used for conveying Chinese chives, the rear end of the base plate is provided with a collecting mechanism used for collecting the Chinese chives, the top of the frame body is further provided with a solar assembly, the frame body is further provided with a control mechanism, and the two sides of the base plate are provided with funnels connected with the base plate and used for storing plant ash. A first motor is arranged outside the funnel, the output end of the first motor penetrates into the funnel, and a turbine is arranged at the output end of the first motor. The device can greatly reduce the labor intensity of workers, improve the working efficiency, and realize long-time continuous work without operators; furling, cutting, conveying, collecting and fertilizing can be completed at the same time.

The invention discloses an agaricus bisporus soil covering material with sponge as a main raw material and a preparation method of the agaricus bisporus soil covering material, and belongs to the technical field of edible fungus cultivation. The agaricus bisporus earthing material taking the sponge as the main raw material is prepared from the following raw materials in percentage by volume: 72 to 92 percent of sponge, 4 to 20 percent of soil, 1 to 2 percent of plant ash, 1 to 2 percent of mushroom sporocarp extract, 1 to 2 percent of ferment powder and 1 to 2 percent of auxiliary materials, the sponge is a porous polyurethane sponge block or porous polyurethane sponge particles. All the components in the soil covering material have a synergistic effect, and the fruiting quality of agaricus bisporus can be effectively improved.

The invention relates to the technical field of soil improvement, and discloses a garden soil composite improver and a preparation method thereof. The soil composite improver comprises, by weight, 12-15 parts of fermented organic fertilizer, 9-20 parts of modified water-retaining adsorbent, 24-30 parts of biochar, 5-8 parts of plant ash, and 1.2-2 parts of a microbial mixture. The soil composite improver has good adsorption to heavy metal ions, can effectively remove heavy metal ions in the soil, and has excellent fertilizer and water retention, and can maintain the nutrients in the soil for a long time. It has excellent air permeability and water retention, can keep the soil loose and moist, improve soil compaction, improve soil air permeability and soil activity, provide necessary air and water for the growth of plant roots, and each component complements and promotes each other, synergizes and enhances efficiency, and can effectively improve the quality of garden soil.

The utility model relates to the field of fermentation devices, and discloses an organic fertilizer fermentation device for crop planting, which comprises a fermentation tank body and an arc-shaped top cover arranged on the outer surface of the upper end of the fermentation tank body, the outer surface of the right side of the fermentation tank body is fixedly connected with a side edge rotating piece, and the side edge rotating piece is rotatably connected with a strip-shaped supporting rod; a heating furnace is fixedly connected to the outer surface of the lower end of the strip-shaped supporting rod, a carbon frame is fixedly connected to the inner wall of the heating furnace, a plant ash collecting base is fixedly connected to the outer surface of the lower end of the heating furnace, and an arc-shaped baffle is arranged on the outer surface of the front end of the plant ash collecting base. According to the organic fertilizer fermentation device for crop planting, the fermentation efficiency of an organic fertilizer can be improved in a bottom charcoal fire heating mode, so that the manufacturing period of the organic fertilizer is shortened, meanwhile, plant ash generated after charcoal fire combustion is heated into the organic fertilizer, fermentation of the organic fertilizer can be promoted, and the quality and the fertilizer efficiency of the organic fertilizer are improved.

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.

The present application relates to the field of sewage treatment, in particular to a method for solving sludge bulking of sewage treatment system in winter, comprising the following steps: 1, judging the cause of sludge bulking, detecting the sewage index, activated sludge index and reclaimed water quality index, and judging the degree of sludge bulking; 2, sludge bulking treatment, intermittent aeration and oxygenation according to the degree of sludge bulking, adding O3 to kill part of filamentous bacteria, adding wood ash, accelerant and organic biological complexing agent, increasing the adhesion of activated sludge and the number of microorganisms; 3, discharge activation, using a small low-voltage discharge device, passing a small current into the sewage tank, and exciting microbial activity through the current; 4, intermittent pumping of sewage, the step comprising starting the sewage pump, intermittent pumping of sewage, until the activated sludge settling ratio of the aerobic tank is greater than 40%. The present application has the advantages of simple operation, low investment and stable effect, and can solve the problem of sludge bulking of the sewage treatment system in a short time.

Fertiliser granules comprise a pozzolanic material and a biochar. Suitably, the pozzolanic material is poultry litter ash, meat and bonemeal ash, wood ash, rice husk ash, or olive stone ash. The bioch

The invention discloses a kiln building tobacco pipe, the kiln building tobacco pipe comprises a tobacco pipe green body and an enamel layer, the tobacco pipe green body comprises the following raw materials in parts by weight: 40-60 parts of kaolin, 20-40 parts of red soil and 10-30 parts of clay; the glaze layer comprises the following raw materials in parts by weight: 50-70 parts of glaze ore and 10-30 parts of plant ash. The invention further discloses a preparation method of the kiln building tobacco pipe. The production efficiency is improved, the light knot degree of the internal flue structure is improved, accumulated water is reduced in the suction process, and therefore the suction experience is enhanced.