74results about How to "Conducive to ecological protection" patented technology

The invention discloses a cultivating method of morchella importuna. The cultivating method of the morchella importuna comprises a bacterium culturing producing step, a cultivation material producing step, a hydration processing step, a managing and protecting step and the like. A maternal species (HKAS 62868) which can be identified as the morchella importuna (the number of the Genbank is JQ 618576) through a molecular identification can be used for cultivating cultispecieses. After the hydration processing is carried out on the cultispecieses, the cultispecieses are sowed on the face of the right land and then are earthed up. The cultivation materials can be produced and added in the field and the field can be normally managed for 80-120 days, so that sporocarps can be obtained. The cultivating method of the morchella importuna aims at providing an edible mushroom cultivating method which not only is beneficial to the sustainable development of ecology, but also helps to increase farmer income and a novel cultivating bacterial strain is provided for the industrialization development of the morchella importuna at the same time.

The present invention relates to automatic or semi-automatic bladder emptying systems, especially devices designed to improve the hygiene and comfort of users, such as pilots and urinary incontinent persons, who require storage of their urine in the absence of other sanitary facilities .

The invention relates to cellulase production bacillus licheniformis with phosphate-solubilizing and potassium-releasing functions and the application of the cellulase production bacillus licheniformis. The invention discloses the bacillus licheniformis BL-1 with the preserving number of CCTCC No. M 2012457 and the bacterial strain can produce cellulose, which has an excellent phosphate-solubilizing and potassium-releasing function and can be made into composite probiotics through scientific formulation to microzyme, bacillus subtilis, bacillus megatherium, bacillus mucilaginosus and azotbacteria chroococum, and microbial active sludge organic fertilizer added with the composite probiotics in proportion is directly applied to plant growth regions or applied to plant growth regions after compost fermentation, and has excellent soil enriching and yield increasing effects. According to the invention, efficient resource comprehensive utilization to active sludge discarded by fuel ethanol manufacturers can be achieved, meanwhile, environment pollution is avoided, the treatment process is simple, and the application cost is low. Therefore, ecological protection and sustainable development to agriculture can be facilitated.

The invention discloses an organic fertilizer which is composed of fresh tree branches, animal manure, human excrements, yoghourt, calcium hydroxide, grain stillage, mixed peels, mixed strains, a biological leavening agent and a soil conditioner, wherein the animal manure is composed of duck manure, chicken manure and cattle manure; the mixed peels comprise air-dried banana peels, air-dried apple peels, air-dried pear peels and air-dried orange peels; the mixed strains comprise saccharomycetes, actinomyces and nitrifying bacteria. The invention further discloses a preparation method of the organic fertilizer. According to the invention, organic wastes such as the animal manure, the grain stillage, the mixed peels and the like are fully used, resources are reasonably used, the cost is lowered, ecologic protection is facilitated, the organic fertilizer provided by the invention is treated through repeatedly decomposition, is rich in various trace elements and organic matters, can well improve agricultural product quality and can improve soil structure.

The invention relates to a microbe composite bacterial liquid comprising live bacteria of clostridium thermopalmarium, clostridium thermosuccinogenes, brevibacillus borstelensis, paenibacillus barengoltzii, bacillus subtilis, pseudomonas mendocina, and providencia rettgeri. The invention also provides a bacterial preparation prepared by using the composite bacterial liquid. The bacterial preparation is used for preparing an organic fertilizer. According to the invention, with the composite microbe bacterial liquid, during a composite fertilizer utilization process, the dosage of inorganic composite fertilizer can be reduced, such that production cost can be reduced. Also, with a synergetic effect provided by the microbe bacterial preparation, when dosages of nitrogen, phosphorous and potassium in organic-inorganic composite fertilizers are low, agricultural and forestry waste stalks with low prices and rich organic substances such as nitrogen, phosphorous, potassium and calcium are converted into micro-molecular substances such as monosaccharide and oligosaccharide which can be utilized by plants. Therefore, a relatively high crop yield is obtained, and a substantial yield increasing effect is provided. Agriculture in our nation has a severe dependence on chemical fertilizers. With the composite bacterial liquid provided by the invention, the situation can be changed, and agricultural ecological protection can be enhanced.

A process is concerned with purifying spherosin by fermentation of metarrhizzium anisopliae. It is carried out by: fermenting to obtain mycelium and fermented liquid, ultrasonic and solution extracting, and treating by thin-film chromatography, D101 resin, silica column chromatography and gradient sublimation to separate pure spherosin from mycelium and fermented liquid. The product is white needle crystal with molecular weight of 173, fusion point 144-145 deg.C, and purity being not less than 98%. The process does not damage present plant resources, and has short production period, costs low with mass production with high purity.

The invention belongs to the technical field of medicaments and relates to a method for preparing microbe-derived bio-pesticide through a strain of screened fungus. The fungus is Fusariumaverenaceum (Cordaex Fr.) Sacc; the preservation date is 11 May, 2010; the preservation unit is China General Microbiological Culture Collection Center (CGMCC); and the preservation number is CGMCCNo.3823. The microbial pesticide is produced by the process flow in the invention through a seed culture medium and a fermentation medium, and the prepared pesticide has broad-spectrum functions of preventing and treating crop diseases, and has special effect on tomato late blight disease, hot pepper late blight disease, and cabbage blight. The method for preparing the bio-pesticide has the advantages of stable product quality, high efficiency, no toxin, safety for a human body, no pollution, ecological environment protection, capacity of replacing chemical pesticide for agricultural production, and capacity of meeting the development requirement on 'green agriculture'.

The invention discloses a method for planting reed on a side slope. The method comprises the following steps: 1) slope surface preparation: a step of successively laying a layer of planting nutrition soil with a thickness of 20 to 30 cm and a layer of gravelly soil with a thickness of 5 to 15 cm on slope surface from bottom to top; 2) ecological concrete construction: a step of pouring ecological concrete on the slope surface, wherein the ecological concrete is prepared through the following step: subjecting gravels, cement, micro silicon dioxide powder or fly ash, a water reducing agent and water to mixing under stirring according to a weight proportion; 3) reed planting; and 4) maintenance: a step of carrying out watering for 3 to 7 times every day after sowing, removing non-woven fabrics after germination, and carrying out fertilization once every 7 days. According to the invention, by using perennial aquatic grass-tree reed as a planting variety, the reed has the advantages of well-developed root system, strong tillering ability and high ornamental value, and can effectively fix the soil of the side slope, improve ecological environment and well beautify the environment.

The invention discloses anion-impregnated integrated paper for an ecological board veneer. The anion-impregnated integrated paper is formed by a fiber layer and decoration paper in adhesive containing an anion material through simultaneous adhesive impregnation, rolling compositing and pre-curing. A production method of the anion-impregnated integrated paper includes: subjecting the fiber layer and the decoration paper to primary adhesive impregnation, rolling compositing, primary drying, secondary adhesive impregnation and secondary drying, cooling to room temperature, cutting edges, inspecting and packaging, wherein the fiber layer is geotechnical cloth, glass fabric, a polyamide fiber layer, a polyacrylonitrile fiber layer, a polyester fiber layer, a polypropylene fiber layer or ceramic fiber layer. The anion material is anion powder. The anion-impregnated integrated paper has advantages that the paper has buffer covering performance, is capable of saving resources, and the like. When the anion-impregnated integrated paper is used to produce an ecological board, the production procedure is simple and low in energy consumption, formaldehyde in the ecological board can be lowered effectively by continuously releasing anions, and human health is benefited.

The invention relates to a net brick, which is mainly characterized in that: netty multidirectional channels which are vertically, horizontally and uprightly intercrossed spatially, run through each other and are communicated with the surface of a brick body are arranged inside the brick body, and a thin-shell arched net structure is formed in the brick body. The brick body can meet mechanical bearing requirements, and simultaneously the surface area of the brick body, the internal volume and the internal carrying capacity of the brick body are increased. Under the condition of combined use of net bricks, multidirectional channels in the brick body can be intercrossed, thereby the shape of a layered net can be formed; moreover, opposite directions of the channels are abundant, thereby brick net structures with different shapes and types can be formed; the net brick also is characterized by ventilation, aeration and water permeability. Furthermore, the net brick has multiple functions and wide application range and can have multiple uses with one brick, be effectively applied in different fields and play different roles.

The invention provides a peach tree planting method on a hillside. The method comprises the following steps of (1) preparing before planting, (2) planting, including planting peach tree seedlings in various cement framework groups on a hillside from the bottom to the top according to a height gradual increase order, and (3) applying fertilizer, wherein in the fertilizer applying step, one month after plantation, a plurality spherical gelatin sponge are placed around a root of each peach tree seedling; a sunward hillside with the gradient of 37 to 45 degrees is selected; peach tree seedlings are planted in various cement framework groups on a hillside from the bottom to the top according to the height gradual increase order; the peach tree seedlings are distributed in a step shape to ensure the peach tree seedlings to enjoy the sunshine to the largest extent; with thorough sunniness, peach sweetness can be enhanced; a problem of peach quality decrease due to uneven sunniness acquired by peach trees planted on a flat land and lack of sunniness to lower sides of the peach trees can be solved; and hillside stability can be improved when the peach trees are planted on the hillside.

The invention provides a method for planting orange trees on a mountain slope. The method comprises the following steps of (1) preparation before plantation, (2) plantation, including planting orange tree seedlings in different cement frameworks along the mountain slope from the bottom to the top according to an order of orderly increased height, and (3) fertilizer application, including placing a plurality of spherical gelatine sponge surrounding a root of each orange tree. The mountain slope is sunward with gradient from 37 to 45 degrees; the orange tree seedlings with various heights are orderly planted in different cement frameworks from the bottom to the top along the mountain slope according to the order of increased height; the orange tree seedlings can be distributed in a step shape and sunlight is ensured for orange tree seedlings to the largest extent; with adquate sunniness, orange sweetness can be increased; a problem of low quality of oranges due to uneven sunlight when orange trees are planted on the flat land and leaves of the lower side of the orange trees cannot be illuminated; and mountain slope stability can be enhanced with the orange trees planted on the mountain slope.

The invention discloses a process of purifying spherosin by fermentation of metarrhizzium anisopliae. The metarrhizium anisopliae fungus is purchased from the microorganism conservation center of the Chinese academy of agricultural sciences, and through fermenting and culturing to obtain mycelium which contains rich spherosin and fermented liquid, through ultrasonic and solution extracting, and treating by thin-film chromatography, D101 resin, silica column chromatography and gradient sublimation etc. technology to separate pure spherosin from the mycelium and fermented liquid. The spherosin produced by the process is white needle crystal with molecular weight of 173, fusion point 144-145 DEG C, and purity being not less than 98%. The process does not damage present plant resources, and has no problem of lacking resources. It has short production period, low cost, big productivity, high purity. Therefore, it is suitable to be industrialized, and it can promote the industrialization of R&D that adopts the spherosin as anti-tumour medicine and immunity intensifier.

The invention discloses a medical suspended preparation and a preparation method thereof. The medical suspended preparation is used for treating and preventing diseases or regulating physiological functions through medical information without contacting human or animal body skins. The basic structure of the medical suspended preparation is composed of a medicament bank (1), a container (4) and a connecting piece (5). Contents (2) are medicaments having pharmacological activities. When the preparation is used in treatment, no medicinal material matters enter a human or animal body, so safety problem as well as the simulation of oral preparations to the gastrointestinal tract, the first-pass effect of the gastrointestinal tract, the drawbacks of pains, cross-infection risks and injection and infusion reactions of injections, the simulation and damage of transdermal patchs to skin, the damage of adhesive to skin, and the like are avoided. The product can be used repeatedly, so the consumption of medicaments is reduced greatly, medicament resources are saved, environmental pollution caused by pharmaceutical industry is reduced greatly, and ecological is protected. The preparation is simple, convenient and safe to use and is particularly suitable for treating the aged and weak, children, people with mental retardation and animals.

The invention relates to a bamboo-fiber electric-heating mosquito-repellent incense piece and a preparation method thereof. A paper raw piece of the bamboo-fiber electric-heating mosquito-repellent incense piece comprises the following components, by weight, 30%-90% of bamboo fiber, 0-70% of wood fiber and 0-70% of cotton fiber. After heated, the bamboo-fiber electric-heating mosquito-repellent incense piece has faint scent of bamboos, can purify the air and is light and thin. The preparation method of the bamboo-fiber electric-heating mosquito-repellent incense piece sequentially comprises the following steps: making a bamboo fiber raw material into bamboo pulp after pulping and jordaning; making a wood fiber raw material into wood pulp after pulping and jordaning; making a cotton fiber raw material into cotton pulp after pulping and jordaning; mixing the bamboo pulp, the wood pulp and the cotton pulp, determining proportions of the components according to any proportion of the right claim, adding water to dilute the mixture, evenly mixing, and making a tablet base material after manufacturing paper with the pulp; making the paper raw piece after punching of the tablet base material; and spraying a mosquito-repellent agent on the paper raw piece. The preparation method reduces production cost and is simple in process.

The invention belongs to the fermentation engineering technical field, in particular relates to the technics of producing swainsonine fermented by beauveria. The invention provides the technics of producing the swainsonine fermented by the beauveria to overcome the problems of the hard reproduction and the high cost of the prior art. In order to overcome the problems of the prior art, the technical scheme adopted by the invention is the process of producing the swainsonine fermented by the beauveria. The process successively includes the following steps: first, mycelium is obtainedthe through biological fermentation of the beauveria; second, the extraction of the swainsonine in the mycelium: firstly, the extraction of the total extract of the mycelium: the myceilium extraction concentrated solution is obtained by a ultrasonic method; secondly, the extraction of swainsonine crude products: the swainsonine crude products can be obtained by repeated extraction; thirdly, the extraction of the pure swainsonine: the pure swainsonine is obtained by the sublimation technology.

The invention discloses a seed treatment agent containing metconazole and fludioxonil, and particularly relates to the technical field of combination of pesticides. The seed treatment agent is characterized in that the seed treatment agent comprises the effective components including metconazole and fludioxonil, wherein the ratio of metconazole to fludioxonil in parts by weight is equal to (1:35)-(35:1), and the total content of the effective components accounts for 0.1-70% of the total amount of the whole preparation in parts by weight; seed treatment agent also comprises the balance of auxiliary component. When being used for treating seeds, the seed treatment agent has the effects of conserving seedlings, enabling the seedlings to be strong, improving the stress resistance and comprehensively controlling seedling stage disease and pests, thus achieving the aims of yield protection and yield increment; furthermore, the seed treatment agent applied underground in a hiding way, and is clear in target and can be used for treating in a centralized manner; after the seed treatment agent is used, environmental and ecological protection can be well realized, pesticide, time and money can be reduced, the resources are saved, and the cost is lowered; therefore, the seed treatment agent is economical and has remarkable ecological benefit.

The invention provides an artificial transplanting method for Lentinus edodes Sing.. Standby Lentinus edodes Sing. strains are taken and matched with a separately prepared artificial bacteria stick culture medium and prepared artificial bacteria sticks, Lentinus edodes Sing. artificial bacteria sticks cultured by inoculation and hypha culture are transplanted to be under tree crowns and in greenhouses and workshops. The strains taken in the method are convenient to store and preserve, the method can adapt to long-term large-scale industrial cultivation, meets and enriches living demands of people, has low investment cost, is beneficial to ecological protection, fills up the blank in domestic and overseas artificial transplanting of the Lentinus edodes Sing. and is suitable for being popularized.

The invention relates to a fertilizer. In order to reduce the fertilizer loss and increase the utilization ratio of nutrients in the fertilizer, the invention provides an organic and inorganic compound fertilizer containing organic mineral and inorganic mineral. A preparation method of the compound fertilizer comprises the following steps of: uniformly mixing 17-18% of kieselguhr mineral powder, 17-18% of humic acid mineral powder and 23-24% of organic fertilizer, then adding 0.5% of microbial compound agent for nitrogen fixation, phosphorus releasing and potassium releasing, and fermenting to prepare a biological organic fertilizer; uniformly mixing the biological organic fertilizer with 30% of N, P and K inorganic fertilizer, then adding 9-10% of gypsum powder as a binding agent, granulating by squeezing, sieving, and drying in the air to obtain the organic and inorganic compound fertilizer D. Secondary and trace elements accounting for 0.5-2.5% of organic and inorganic compound fertilizer D by weight are added before the gypsum powder is added. The organic and inorganic compound fertilizer can increase the crop yield by more than 15-25%, improve the utilization ratio of the fertilizer to more than 60%, realize the only one application time of the base fertilizer for first crop, and reduce the labor intensity and the fertilizer application cost.

The invention discloses a method for planting miscanthus sinensis on a side slope. The method comprises the following steps: 1) preparing the slope surface: a layer of planting nutrient soil with thickness being 20-30 cm and a layer of gravelly soil with thickness being 5-10 cm are laid on the slope surface from bottom to top sequentially; 2) building ecological concrete: the ecological concrete is poured on the slope surface and is prepared through the following step: gravel, cement, silicon dioxide micro powder or fly ash, a water reducing agent and water are mixed and stirred in parts by weight; 3) planting the miscanthus sinensis; 4) performing conservation: performing watering 3-5 times each day after sowing, removing non-woven fabric after germination, and applying fertilizer once every 7 days. According to the method, a perennial aquatic plant, namely, the miscanthus sinensis is adopted as a planting variety and has developed roots, as well as high tillering capacity and ornamental value, so that soil on the side slope can be effectively fixed, the ecological environment can be effectively improved, and the environment can also be well beautified.

The invention discloses a method for planting thalia dealbata on a side slope. The method comprises the following steps: 1) preparing the slope surface: a layer of planting nutrient soil with thickness being 20-30 cm and a layer of gravelly soil with thickness being 5-10 cm are laid on the slope surface from bottom to top sequentially; 2) building ecological concrete: the ecological concrete is poured on the slope surface and is prepared through the following step: gravel, cement, silicon dioxide micro powder or fly ash, a water reducing agent and water are mixed and stirred in parts by weight; 3) planting the thalia dealbata; 4) performing conservation: performing watering 3-7 times each day after sowing, removing non-woven fabric after germination, and applying fertilizer once every 7 days. According to the method, a perennial aquatic plant, namely, the thalia dealbata is adopted as a planting variety and has developed roots, as well as high tillering capacity, growth rate and ornamental value, so that soil on the side slope can be effectively fixed, the ecological environment can be effectively improved, and the environment can also be well beautified.

The invention relates to a plant-growing precast concrete component for slope protection and a construction method, and belongs to the technical field of ecological greening. The plant-growing precastconcrete component comprises a water permeable cover, a water permeable hole, a water permeable cover bulge, a water permeable cover groove, a precast reinforced concrete frame component, a bottom slope toe, a component groove, a component bulge and a precast plant-growing concrete component, wherein the water permeable cover takes the shape of a cuboid; the water permeable hole is circular, is located on the surface of the water permeable cover and penetrates through the water permeable cover along the vertical direction; the water permeable cover bulge is located at the bottom of the waterpermeable cover; the precast reinforced concrete frame component is a hollow cuboid without upper and lower bottom surfaces; the water permeable cover groove is formed in the upper end of the water permeable cover groove; the lower end of the water permeable cover groove takes the shape of a slope toe and the bottom slope toe is mounted at the lower end; the component groove and the component bulge are arranged around the water permeable cover groove; and the precast plant-growing concrete component takes the shape of a cuboid. According to the plant-growing precast concrete component, the structure is simple, the components are convenient to construct, the connection of a stress structure and a protective water permeable structure is clear, the anti-erosion property is strong, benefit isbrought to the growth of plants on the slope surface, and effects of reinforcing the slope and greening the slope ecological environment are provided.

The invention belongs to the technical field of submarine seismic exploration, and discloses a multi-seismic-source efficient acquisition wave field separation method, a separation system and computer equipment. The seabed seismic exploration multi-seismic-source efficient acquisition wave field separation method based on the denoising neural network comprises the steps of obtaining mixed acquisition data, preprocessing seismic data, making small-size seismic data, normalizing a training set, building and training a neural network model, and testing seabed seismic exploration multi-seismic-source efficient acquisition wave field separation. And obtaining a common shot gather record after aliasing noise removal. According to the invention, the trained network model is used to carry out mixed collection separation in seafloor seismic exploration multi-seismic-source efficient collection wave field separation, the operation speed is fast, the human intervention is little, and the seafloor seismic exploration multi-seismic-source separation effect is good. The method is small in human resource investment and low in cost in separation of multi-seismic-source efficient acquisition wave fields in submarine seismic exploration.

The invention discloses a diversion tunnel sequential blocking method for realizing continuous stream of the down stream of a high arch dam in the storage period. The diversion tunnel sequential blocking method comprises the following steps that firstly, a diversion tunnel to be modified and a first lateral hole are selected in the dry season before gate blocking of the diversion tunnel, a lower half hole of the first lateral hole is blocked, the elevation of the bottom of the first lateral hole is heightened, the height of the opening of the first lateral hole is reduced, and the original size of the opening of a second lateral hole is reserved; secondly, the first lateral hole and the second lateral hole are respectively provided with a bulkhead gate, the second lateral hole which is not modified is blocked through the gate before water storage of a reservoir, and water is supplied to the down stream through the opening of an upper half hole of the first lateral hole; thirdly, after the water level of the reservoir meets the requirement that ecological flow can be discharged by a dam body permanent flood discharging hole, the gate of the opening of the upper half hole of the first lateral hole is closed, and the stream is not cut off in the gate closing process. The diversion tunnel sequential blocking method has the advantages of avoiding stream cutoff of the down stream in the gate closing process, simplifying the dam body structure, shortening the work period, increasing electricity generation gains and reducing engineering investment, and can be widely applied to the technical field of water conservancy and hydropower construction diversion.

The invention relates to a gabion bracing system for ecological restoration of a high-steep rock slope and a laying method of the gabion bracing system. The structure of the gabion bracing system is formed through the combination of hexahedrons which are composed of gabion pieces and internally provided with planting chambers, wherein the front side face, the rear side face, the left side face, the right side face and a middle partition plate are each of a hollow structure and are each composed of two layers of metal mesh surfaces, wherein the distance between the two layers of metal mesh surfaces is equal to the size of a mesh, and each planting chamber is formed between the two corresponding layers of metal mesh surfaces. Gabion boxes are staggered and laid from the bottom of the slope to the top of the slope in sequence, and the staggered distance is equal to 1 / 2 of the length of a gabion box. In the laying process, the bottoms of the gabion boxes are connected by using shooting wires, and the tops of the gabion boxes are connected by using shooting wires. At the toe of the slope, slope toe pressing is conducted by using a reinforced concrete retaining wall, and the stability ofa gabion bracing structure is improved. The Gabion boxes are filled with filler prepared from slope cutting broken stone, the ecological environment of the slope can be restored as soon as possible,and the local slope cutting broken stone substances can be further utilized to the greatest extent. The gabion bracing system is suitable for slope surface protection of the overall stable rock slopewith the height smaller than or equal to 10 m and the gradient smaller than or equal to 45 degrees.

The invention discloses anion-impregnated integrated paper for an ecological board veneer. The anion-impregnated integrated paper is formed by a fiber layer and decoration paper in adhesive containing an anion material through simultaneous adhesive impregnation, rolling compositing and pre-curing. A production method of the anion-impregnated integrated paper includes: subjecting the fiber layer and the decoration paper to primary adhesive impregnation, rolling compositing, primary drying, secondary adhesive impregnation and secondary drying, cooling to room temperature, cutting edges, inspecting and packaging, wherein the fiber layer is geotechnical cloth, glass fabric, a polyamide fiber layer, a polyacrylonitrile fiber layer, a polyester fiber layer, a polypropylene fiber layer or ceramic fiber layer. The anion material is anion powder. The anion-impregnated integrated paper has advantages that the paper has buffer covering performance, is capable of saving resources, and the like. When the anion-impregnated integrated paper is used to produce an ecological board, the production procedure is simple and low in energy consumption, formaldehyde in the ecological board can be lowered effectively by continuously releasing anions, and human health is benefited.

The invention discloses a waterborne colorful rock slice paint added with rice husk silicon nitride based porous ceramic powder. Rice husks are carbonized and then sintered with silicon nitride to obtain porous ceramic powder, the porous ceramic powder is added in paint preparation to enhance the mechanical strength and wear resistance of a coating film, and at the same time porous ceramic has small pore size, high porosity and good sound absorption effect. The colorful rock slice paint imitates the granite pattern, has the advantages of elegant appearance, excellent weather resistance, long service life, and good noise adsorption effect, can be used in walls of cinemas, theaters, subways and the like, the construction is convenient, and the use effect is excellent.

The invention provides a treating and recovering process for waste acid, belonging to the technical field of treatment of waste liquid. The treating and recovering process comprises the following process steps: precipitation of waste acid; roasting in a roasting furnace; separation of roasting gas and impurities thereof; rinsing with an absorbing tower; reseparation of the roasting gas; washing of exhaust gas; etc. According to the step of washing of exhaust gas, before eventual discharging of gas, rinsing water is used for cyclically washing exhaust gas at the lower part of the washing tower and desalinized water is used for cyclically washing the exhaust gas at the upper part of the washing tower, so the exhaust gas is allowed to reach emission standards. The treating and recovering process has the beneficial effects that waste acid can be decomposed into Fe2O3 solid particles and recovered acid and the recovered acid can be returned to a pickling line for repeated usage, so cost is saved and the concept of eco-environment protection is accorded with.

The invention discloses colorful rock slice coating with graphite grafted polyaniline and with electromagnetic shielding effect. Graphite oxide is modified by utilizing a silane coupling agent KH550, amino is introduced on the surface of the graphite oxide, polyaniline is grafted to prepared polyaniline grafted modified graphite, and the polyaniline grafted modified graphite is added into the coating, so the mechanical strength and the wear resistance of a coating film are enhanced and the electrical conductivity of the coating film is improved ; the colorful rock slice coating has the appearance of granite, has excellent coating film adhesive force, firmness, wear resistance, high compactness, high storage stability, high electrical conductivity and excellent electromagnetic shielding property, can resist electromagnetic radiation, is applied to an indoor wall surface, is safe, non-toxic, beautiful and elegant, and is harmless to a human body.