34 results about "Ceratophyllum demersum" patented technology

The invention provides a system and method for improving black and odorous riverway water quality through micro-aeration and submerged plants. Black and odorous riverway contaminated bottom silt is improved through bottom layer micro-aeration, release of contaminants of the bottom silt is controlled, growth of the submerged plants is assisted, and ammonia nitrogen is reduced. Meanwhile, according to the seasonal change of the plants, evergreen submerged vegetation is established through an elodea nuttallii-eel grass combination, accompanying species of ceratophyllum demersum, myriophyllum spicatum and hydrilla varticillata are planted in an assisted mode, the stable submerged vegetation is established, and the purpose of improving the riverway water quality is achieved. The problem that the transparency is low in the initial stage of a black and odorous riverway water quality improvement project is solved through a floating bed capable of ascending and descending through introduction of the submerged plants. The probability of establishment of the specific submerged vegetation in a black and odorous riverway is verified, water quality improvement is remarkable, operation is easy, the project amount is small, and the system and method are economical and practical.

The invention discloses an apple seed-containing piglet fattening fertilizer and a production method thereof. The apple seed-containing piglet fattening fertilizer comprises the following raw materials in parts by weight: 150-200 parts of corn bran, 200-300 parts of soybean cakes, 50-100 parts of grain brans, 100-150 parts of live pig blood, 0.5-1 part of leavening agent, 100-150 parts of apple seeds, 70-80 parts of wheat flour, 30-40 parts of seasame seed meal, 30-40 parts of shrimp meal, 20-30 parts of pine leaf powder, 0.5-1 part of herba leonuri, 1-2 parts of caulis spatholobi, 2-3 parts of cortex magnoliae officinalis, 2-3 parts of fructus rosae laevigatae, 30-40 parts of sorghum rice, 5-10 parts of mung beans, 3-4 parts of smoke plum pulp, 7-8 parts of rice koji, 5-10 parts of green peppers, 10-20 parts of ceratophyllum demersum, 5-15 parts of epipremnum aureum, 20-25 parts of potamogeton crispus, and 15-20 parts of phagostimulant. The feed is complete and abundant in nutrients, the appetite of piglets is high, piglets fast grow, and are strong and incapable of suffering from disease and diarrhoea, the fatting period of the piglets is short, the fattening efficiency is high, and the meat is firm and the taste is delicious.

The invention discloses a rapid field planting method for hornworts as a submerged plant, belonging to the technical field of resource and environment engineering. The method comprises following steps of: 1, selecting furnishing hornworts (1), wherein each top end of the furnishing hornworts is 25 to 35 cm in length, and three to five top ends are in a bundle; 2, binding each bundle of hornworts (1) with a cloth strip (2); 3, connecting the cloth strip (2) with a small fixing bag (4), and immersing each bundle of hornworts to the bottom of the water; 4, sequentially connecting a plurality of hornworts (1), a plurality of fixing ropes (3) and a fixing rod (7) from up down in a row; and 5, connecting big fixing bags (5) to the two ends of the fixing rod (7). The invention has advantages of simpleness, low cost, obvious yield effect and capabilities of efficiently improving the water quality of the water body and enhancing the transparency of the water body, and is suitable for the recovering project of the diversity of aquatic vegetation and aquatic plants in lakes, or the ecological reconstruction project of an aquatic ecosystem of the lakes.

The invention discloses an in situ remediation method for improving black and odorous river sediment by combining submerged plants and improving agents. The method includes the following steps: putting a sediment improving agent in the sediment of a river, and planting submerged plants in the sediment on the 0th - 20th day when the sediment improving agent is put, wherein 1.5-2 kg of the sedimentimproving agent can be put into the sediment per square meter, and the submerged plants are one or more of potamogeton crispus, ceratophyllum demersum and myriophyllum verticillatum; harvesting the submerged plants when the heights of the submerged plants arrive the water surface of the river so that the tops of the submerged plants can be located 25-35 cm below the water surface; and repeating the step 3 until the color of the sediment is changed from dark brown to brown-yellow. The method combines a chemical remediation technology and a bioremediation technology, so that the deficiency of the chemical remediation technology and the bioremediation technology can be made up by integrating the advantages of the two. Black and odorous rivers can rapidly improve the oxygen environments of thesediment by adding the sediment improving agent, so that favorable conditions can be created for the planting of the submerged plants.

The invention discloses a method for breeding river crabs in an original-ecology anti-season breeding pool. The method includes the following steps that the novel reformed anti-season breeding pool for river crabs is adopted, crab holes are manually formed, hornwort and waterweed are planted through net cages, the water temperature is controlled, energy is saved, no equipment temperature control measure is taken, the crabs are fed with spiral shells dynamically in the whole process, measures of conducting anti-season selling of goods crabs and the like are taken to further fatten the bred river crabs, after anti-season breeding and fattening, anti-season 'staggered time' selling is achieved, economic profits of the river crabs are remarkably raised, and meanwhile the survival rate and yield of the river crabs are remarkably raised.

The invention discloses a ceratophyllum demersum L. tissue culture and rapid propagation method. The ceratophyllum demersum L. tissue culture and rapid propagation method includes A, selecting explants, namely, selecting robust clear green plant stem segments without diseases and insect pests as explants; B, sterilizing the explants, namely, treating the explants by alcohol and plant tissue germicide to prepare germfree explants; C, inducing buds, namely, selecting hormone types and hormone concentration combination to induce bud growth; D, performing propagation culture, namely, adjusting hormone combination for propagation culture; E, hardening seedlings and transplanting, namely, opening bottle openings in an incubator, culturing for two days and transferring into natural water for culture. The ceratophyllum demersum L. tissue culture and rapid propagation method has the advantages that the method cannot be limited by seasons and environments, and a great number of aseptic seedlings are cultured for aquatic ecosystem restoration.

The invention discloses a phellinus igniarius cultivation method, which comprises the following steps: pre-treating poplar log sections with citric acid aqueous solution and ceratophyllum demersum extract; laying a cultivation medium at the top and bottom of the wood sections, wherein the cultivation medium is prepared by mixing ceratophyllum demersum residue, pennisetum giganteum, wheat barn andsilkworm excrement according to the mass ratio of 5: (1-2): (2-3): 3; preparing a cultivar; transferring inoculated material bags to a shading culture room for spawn running; and cultivating the cultivar. The phellinus igniarius planted by the phellinus igniarius cultivation method provided by the invention has high growth rate and high yield, can be popularized on a large scale, and has good economic benefits.

The invention discloses an in-situ restoring method of eutrophic pond culture water. The in-situ restoring method comprises the following steps: 1) plant pre-culture: straightening 3-4 stalks of ceratophyllum demersum into 1 clump, putting 1 clump of ceratophyllum demersum in Hoagland nutrient solution to carry out acclimation and cultivation for 8-10 days so that pre-cultured ceratophyllum demersum is obtained; 2) plant transplantation: transplanting and inserting the pre-cultured ceratophyllum demersum in substrate sludge of water area to be treated, wherein 2-10kg of pre-cultured ceratophyllum demersum is set in the water area to be treated / m<3>; 3) putting bioactivators in the water area to be treated, wherein 4-6g of bioactivators is put in the water area to be treated / m<3>; and 4) controlling the coverage rate of the ceratophyllum demersum not to exceed 60%-80%. By using the method, the biological in-situ restoration of the eutrophic pond culture water can be achieved.

The invention relates to the field of sewage treatment, and especially relates to a comprehensive biological treatment method of heavy metals in sewage by using chlorella. The comprehensive biological treatment method of the heavy metals in the sewage by using the chlorella comprises the following steps of performing drifting, cultivation and propagation on chlorella; performing sinking, cultivation and propagation on hornwort; performing floating, cultivation and propagation on water hyacinth; taking the propagated chlorella, hornwort and water hyacinth as pollutant clearing plants; transplanting the pollutant clearing plants into heavy-metal-polluted water to be cleaned, such as fish ponds and the like, so as to carry out aquatic pollutant clearing plant community reconstruction in the sewage; fishing out the pollutant clearing plants, and carrying out seedling replanting until the sewage is harmless, wherein the pollutant clearing plants are fished out at an appropriate time when harmful heavy metal substances accumulate in the pollutant clearing plants and corresponding harmless treatments are performed so as to prevent the pollutant clearing plants from becoming a route for secondary pollution; carrying out seedling replanting right after fishing of the pollutant clearing plants so as to enter the next pollutant clearing cycle; and then, repeating the steps. The comprehensive biological treatment method of the heavy metals in the sewage by using the chlorella has the following beneficial effects: a comprehensive biological sewage treatment technology is adopted in combination with utilization of the artificially reconstructed aquatic pollutant clearing plant communities as a core so as to treat the sewage and clear away heavy metals until water quality is purified; and the comprehensive biological treatment method has significant effects.

The invention discloses a feed specially used for crabs, which includes the raw materials comprising corn, blood worm powder, meat of margarya, bean curd residue, powder of sophora japonica leaves, powder of pine leaves, clam meat, laminaria japonica powder, ceratophyllum demersum powder, elaeagnus angustifolia, calcium hydrogen phosphate, zeolite powder, codonopsis pilosula, folium artemisiae argyi, negundo chastetree fruits, radix isatidis, polygonum multiflorum, spina date seeds, pericarpium citri reticulatae and a composite additive which includes the following raw materials: composite amino acids, a composite enzyme preparation, composite microelements, composite vitamins, polysaccharides, octacosanol, L-carnitine, essential oil of clove and [gamma]-aminobutyric acid. The feed has scientific formula, abundant nutrients and good palatability, contains a large amount of nutrients required in growth of crabs and can improve immunity of the crabs and improve appetite of the crabs, thereby promoting growth of the crabs.

The invention discloses a duck feed capable of improving the egg yield, which is mainly prepared by grinding and uniformly mixing the following raw materials in parts by weight: 30-50 parts of corn, 20-40 parts of wheat, 10-20 parts of bean meal, 50-60 parts of rapeseed meal, 50-60 parts of peanut meal, 10-15 parts of cottonseed meal, 5-7 parts of fish meal, 3-5 parts of hydrilla verticillata, 3-5 parts of ceratophyllum demersum, 2-4 parts of nutmeg, 1-3 parts of flower of garden balsam, 20-30 parts of aloe pulp, 10-12 parts of cactus dry powder, 5-7 parts of spirulina dry powder, 5-7 parts of garlic dry powder, 30-40 parts of bran, 1-3 parts of complex vitamins, 6-8 parts of phagostimulant and 8-10 parts of traditional Chinese medicine additives. The laying duck feed disclosed by the invention is prepared from pure natural green raw materials and contains rich nutrients; traditional Chinese medicine ingredients are added, so that the body immunity is improved, and the occurrence of diseases is reduced in a breeding process; and the use of medicines is reduced, so that safe duck eggs are produced.

The invention relates to a microbial deodorizer with complex photosynthetic bacteria and a bioactive enzyme. The microbial deodorizer with the complex photosynthetic bacteria and the bioactive enzyme is composed of a microbial agent, plant extract, algae extract, the bioactive enzyme and water. The microbial agent comprises, by mass, 15%-35% of lactobacillus plantarum, 15%-35% of beer yeast, 2%-6% of complex photosynthetic bacteria, 2%-6% of improved nitrifying bacteria and 3%-5% of bacillus; the plant extract comprises, by mass, 5%-10% of lemon, 4%-15% of chrysanthemum flower extract and 3%-8% of radix codonopsis extract; the algae extract is, by mass, 0.5%-2.5% of ceratophyllum demersum extract. The microbial deodorizer with the complex photosynthetic bacteria and the bioactive enzyme is low in cost, high in efficiency, wide in application range and very practical in specific production and greatly improves refuse disposal efficiency.

The invention discloses an eggplant seedling growing matrix. The matrix comprises plant ash, fresh kelps, a pigeon dung and sheep dung mixture, sandy soil, Scirpus validus Vahl, Cedrela sinensis bark extract, vermiculite, cyclohexylsulfo phosphoric triamide, gray dolomite powder, sodium hyposulfite, Ceratophyllum demersum L., Achyranthes aspera, Silene conoidea L., Dianthus chinensis and a water retaining agent. Raw materials of the eggplant seedling growing matrix have wide sources and low cost; and a zymolytic fresh kelp and Scirpus validus Vahl mixture is added to an eggplant matrix, and the Cedrela sinensis bark extract is also added, so abundant nutrition elements are provided for eggplant seedlings, the growth of the eggplant seedlings is promoted, the survival rate of the seedlings is improved, the seedling growing period of the eggplant seedlings is shortened, eggplant plants cultivated with the matrix have a greatly improved fruiting rate, and eggplants produced by the eggplant plants are crisp and tender and have good mouthfeel.

The invention relates to the technical field of aquaculture and particularly relates to loach feed applied to high-yield pond culture. The feed is prepared from the following raw materials in parts by weight: 12-15 parts of rice bran, 8-10 parts of barley bran, 15-18 parts of soya-bean cake, 10-12 parts of rice, 6-8 parts of wheat middling, 12-15 parts of corn flour, 3-4 parts of shrimp meal, 3-4 parts of chicken visceral meal, 5-6 parts of fried smashed peanuts, 4-5 parts of monochoria vaginalis, 4-5 parts of ceratophyllum demersum meal, 4-5 parts of celery juice, a proper amount of table salt and 4-5 parts of a phagostimulant. As the loach feed provided by the invention properly comprises the raw materials, such as the shrimp meal, the chicken visceral meal and monochoria vaginalis, according to the omnivorous property of loach, the growth and the development of loach are promoted, the utilization rate of the feed is improved, the weight of loach fed with the feed is obviously increased and the culture yield is improved.

The invention discloses a method for inhibiting water bloom, which comprises the following steps of: alternately arranging artificial water purifying carriers and cedar moss at intervals in water and planting into mud at water bottom, wherein the artificial water purifying carriers are high polymer material carriers with spatial net structures, a combined purification body that a large number of beneficial bacteria and enzymic preparations are fixed on the carriers has a waterweed shape, and the artificial water purifying carriers create appropriate environmental conditions for physiological activities of microorganisms to make pollutants quickly degraded; and with the growth of the cedar moss, the cedar moss gradually realizes functions of purifying water and generating oxygen. The method has the advantages that: the artificial water purifying carriers and the aquatic plant of cedar moss are matched, when the cedar moss has lower efficiency of absorbing ammonia and nitrogen at low temperature in the early growth stage, the artificial water purifying carriers can fully exert functions, and when the water bloom is in flood, the cedar moss is in growth peak season and more powerfully inhibits the generation of the water bloom. The artificial water purifying carriers and the aquatic plant of cedar moss are ecologically complementary.

The invention discloses a feed for increasing survival rate of crabs. The feed includes the raw materials of: corn, fishmeal, bran, bean curd residue, wheat, powder of sophora japonica leaf powder, pine leaf powder, mussel powder, chicken powder, earthworm powder, shell powder, dried small shrimp powder, laminaria japonica powder, ceratophyllum demersum powder, calcium hydrogen phosphate, choline chloride, zeolite powder, elaeagnus angustifolia, codonopsis pilosula, folium artemisiae argyi, negundo chastetree fruits, radix glycyrrhizae, pomegranate peel, ginger, pericarpium citri reticulatae and a composite additive which includes the raw materials of: composite amino acids, lactic acid bacteria, monascus purpureus, composite microelements, composite vitamin, polysaccharides, octacosanol, L-carnitine, propolis extract, cinnamon essential oil, clove essential oil, [gamma]-aminobutyric acid and tannin acid. The feed has scientific formula, abundant nutrient and good palatability, contains a large amount of nutrients required in growth of crabs and can improve immunity of the crabs, thereby increasing the survival rate and promoting growth of the crabs.

The invention discloses a method for rapid breeding of hornwort. The breeding process is repeated, seedlings germinated, matured and sown firstly are screened each time the seedlings are bred, the selected seedlings for breeding in accordance with the above breeding method by fixing the good breeding environment are used after multi-band filtering, fast growing varieties are screened, the fast growing hornwort is used as initial seedlings for each generation, then the seedlings are continuously bred in the fixed good breeding environment, and the mating rate is commonly promoted by the speed at which the hornwort is bred, from genetic and environmental factors.

The invention discloses a method for repairing organotin polluted water by a submerged plant. An angiosperm submerged macrophyte, namely Ceratophyllum demersum L. is taken as a material for repairing organotin polluted water. The method particularly comprises the following steps: (1) planting 5.1 to 12.5g of Ceratophyllum demersum L. per liter of wastewater containing 5 to 20 mug / L of TBT; (2) controlling the pH of wastewater within 6 to 10; (3) salving Ceratophyllum demersum L. after planting for 5 to 10 days; (4) transferring the salvaged Ceratophyllum demersum L. to a safe place to be dried, ground and incinerated and finally subjected to safe landfill. By adopting the method for repairing organotin polluted water by the submerged plant, the treatment efficiency of polluted water with 5 to 20 mug / L of organotin can be more than 98%, and finally organotin is removed; the technology of purifying organotin pollutants by using the submerged plant has the advantages of simple operation and management, high treatment efficiency, low cost, no secondary pollution and the like, and further has the characteristic of beautifying landscapes.

The invention discloses a method for enriching heavy metals in a eutrophic water body by means of configuration of submerged plants. The method comprises the following steps: (1) screening submerged plants from a eutrophic water body; (2) using a seed bank to breed and multiply the submerged plants: taking the tips of ceratophyllum demersum and myriophyllum spicatum, and pruning vallisneria spiralis with roots, and then inserting into lake mud and sandy soil; (3) carrying out configuration of the submerged plants: configuring the species according to a spatial sequence of the ceratophyllum demersum, the myriophyllum spicatum and the vallisneria spiralis; (5) enriching the heavy metals by using the different configured submerged plants: collecting the configured ceratophyllum demersum, myriophyllum spicatum and vallisneria spiralis, drying, pulverizing, grinding and sieving, and then determining the contents of the heavy metals such as arsenic, chromium, copper, lead and zinc in plants;(6) harvesting the submerged plants enriched with the heavy metals. The method is simple and easy to implement and convenient to operate, obviously repairs the heavy metal pollution of the eutrophicwater body, fundamentally improves the water quality, improves the self cleaning capacity of the water body, and comprehensively improves the landscape effect of the water body.

The invention discloses a medium for growing loofah seedlings. The medium comprises plant ash, alga, pigeon excrement and monkey excrement mixtures, sandy soil, herba spirodelae, black walnut bark extract, vermiculite, cyclohexyl thiophosphoric acid triacid amide, gray dolomite powder, sodium thiosulfate, ceratophyllum demersum, ranunculus sieboldii, hypecoum erectum, dianthus chinensis and water-retaining agents. The medium for growing the loofah seedlings has the advantages that raw materials for the medium come from wide sources, and accordingly the medium is low in cost; alga and herba spirodelae mixtures which are subjected to enzymatic hydrolysis are added into the medium for loofah, the black walnut bark extract is fittingly added into the medium, accordingly, abundant nutrient elements can be provided for the loofah seedlings, growth and development of the roots of the loofah seedlings further can be promoted, the survival rate of the seedlings can be increased, the growing periods of the loofah seedlings can be shortened, and the flowering rate and the fruit setting rate of cultivated loofah plants can be greatly increased.

The invention discloses a method for carrying out seine planting of ceratophyllum demersum, which comprises the steps of piling, seining, selecting ceratophyllum demersum, planting and the like. The ceratophyllum demersum planting method is simple, binding does not need to be carried out, the survival rate is increased and cost is reduced; the method is not influenced by variation of the depth of the water level and has obvious effects; water quality of a water body can be effectively improved, transparency of the water body is improved, conditions are provided for planting other plants, and the method can be used as an advanced step in the eco-remediation process; the method is suitable for remediation engineering of water bodies in lakes and ponds and recovery engineering of diversity of aquatic animals and plants.

The invention discloses feed for greylag gooses in the egg producing period. The feed is prepared from substances in parts by weight as follows: 25-30 parts of corn kernels, 5-10 parts of soya bean meal, 2-3 parts of peanut kernels, 4-6 parts of fish meal, 10-15 parts of wheat bran, 10-15 parts of bitter chrysanthemum leaves, 10-15 parts of leaves of lettuce, 5-8 parts of ceratophyllum demersum, 5-8 parts of malabar spinach, 6-10 parts of pennisetum purpureum Schum cv.Guiminyin, 2-4 parts of tourmaline powder, 2-5 parts of stone needle powder, 2-3 parts of egg shells, 1-3 parts of shells of soft-shelled turtles, 2-4 parts of traditional Chinese medicine powder and 5-8 parts of an additive. The feed contains balanced nutrition, the matching of ingredients is reasonable, the palatability is good, the nutritional requirement law of the greylag gooses in the egg producing period is met, the physique of the bodies of the greylag gooses can be well enhanced, the mating capability of male greylag gooses and the production performance of the female greylag gooses are improved, the morbidity can be greatly reduced, the quality of laid eggs and the number of the laid eggs are further improved, and good economic benefits are realized.

The invention provides a method for improving the quality of pork, which achieves the aims of improving the lean meat percentage, reducing cholesterol in pork and improving the flavor of pork by adding an additive prepared from herbal extracts into feed. According to the method, multiple herbaceous plants including humulus lupulus, celosia argentea, celosia cristata, gomphrena globose, typha orientalis, penthorum chinense, actinstemma lobatum, ceratophyllum demersum, menyanthes trifoliate, scabrous elephantfoot herbs, mesona chinensis and nosema cochinchinensis are compounded, the lean meat percentage of pigs can be increased, and the content of cholesterol in pork can be reduced, so that the pork is healthier while the quality of pork is improved. The effects of improving the lean meat percentage and reducing cholesterol in pork can be achieved by conducting simple water extraction or alcohol extraction on herbaceous plants in a specific proportion, but those effects can be better by adopting the process provided by the invention, the content of flavor amino acid in pork can be increased, and the pork can be more tasty and delicious.

The invention relates to an efficient compound microorganism deodorant used in a waste-yard. The efficient compound microorganism deodorant used in the waste-yard comprises a microbial agent, a plant extract, an algae extract, biological active enzymes and water, wherein the microbial agent includes 15%-35% of lactobacillus plantarum, 15%-35% of saccharomyces cerevisiae, 2%-6% of composite photosynthetic bacteria, 2%-6% of modified nitrifying bacteria and 3%-5% of lactic streptococci; the plant extract includes 5%-10% of herba menthae heplocalycis, 4%-15% of flos chrysanthemi extract and 3%-8% of codonopsis pilosula extract; the algae extract includes 0.5%-2.5% of ceratophyllum demersum L. extract; and the abovementioned percentage is percentage by mass. The efficient compound microorganism deodorant used in the waste-yard is low in cost, high in efficiency, wide in adaptability and very practical in concrete production, and greatly improves the efficiency of garbage disposal.

The invention relates to a compound deodorant with bacterium activating agents of Radix Codonopsis and hornwort. The compound deodorant comprises a microbial agent, plant extract, alga extract, a bacteria activator and water, wherein the microbial agent comprises, by mass, 15%-35% of lactobacillus plantarum, 15%-35% of beer yeast, 2%-6% of bifidobacterium, 2%-6% of bacillus and 3%-5% of improved nitrobacterium; the plant extract comprises, by mass, 6%-15% of Flos Osmanthi Fragrantis extract, 4%-15% of chrysanthemum extract and 3%-8% of Radix Codonopsis extract; the alga extract comprises, by mass, 2%-5% of hornwort extract. The compound deodorant with the bacterium activating agents of the Radix Codonopsis and the hornwort is low in cost, high in efficiency, wide in applicability and quite practical in concrete production, and garbage disposal efficiency is greatly improved.

The invention discloses a method for inhibiting water bloom, which comprises the following steps of: alternately arranging artificial water purifying carriers and cedar moss at intervals in water and planting into mud at water bottom, wherein the artificial water purifying carriers are high polymer material carriers with spatial net structures, a combined purification body that a large number of beneficial bacteria and enzymic preparations are fixed on the carriers has a waterweed shape, and the artificial water purifying carriers create appropriate environmental conditions for physiological activities of microorganisms to make pollutants quickly degraded; and with the growth of the cedar moss, the cedar moss gradually realizes functions of purifying water and generating oxygen. The method has the advantages that: the artificial water purifying carriers and the aquatic plant of cedar moss are matched, when the cedar moss has lower efficiency of absorbing ammonia and nitrogen at low temperature in the early growth stage, the artificial water purifying carriers can fully exert functions, and when the water bloom is in flood, the cedar moss is in growth peak season and more powerfully inhibits the generation of the water bloom. The artificial water purifying carriers and the aquatic plant of cedar moss are ecologically complementary.

The invention relates to the technical field of cyprinus carpio culture and particularly relates to a method for three-dimensional culture of sturgeons. According to the method, water ducks are cultured on water surface, excrements of the water ducks are subjected to digestive absorption by hornworts planted in water so as to be purified, parts, which cannot be completely decomposed by the hornworts, sink under water and are subjected to digestive absorption by earthworms, and the hornworts and the earthworms floating in the water will be eaten by the sturgeons, so that the requirements of thesturgeons on feedstuffs can be lowered, and a good symbiotic environment, i.e., water duck-water treatment by the hornworts and the earthworms-hornwort and earthworm eating by the sturgeons is formed; and the efficiency of raising of the water ducks and the sturgeons can be effectively increased, and the economic benefit is improved.

The invention relates to a microbial deodorizer containing a hornwort extract and dangshen. The microbial deodorizer containing a hornwort extract and dangshen comprises microbial inocula, plant extracts, an alga extract, a biological active enzyme and water, wherein the microbial inocula comprise 15-35% of Lactobacillus plantarum, 15-35% of beer yeast, 2-6% of compound photosynthetic bacterium, 2-6% of improved nitrifying bacterium and 3-5% of Rhodopseudomonas palustris; the plant extracts comprise 4-15% of chrysanthemum extract and 3-8% of dangshen extract; the alga extract is 0.5-2.5% of hornwort extract; and the above percentage is based on mass. The microbial deodorizer containing a hornwort extract and dangshen has the advantages of low cost, high efficiency and wide application range, is very practical in specific production, and greatly improves the garbage treatment efficiency.

The invention discloses a preparation method of ceratophyllum demersum enhanced air filter paper. The novel air filter paper is prepared from shot-cut glass fibers and glass wool fibers which have different fiber diameters, ceratophyllum demersum is added, and the filtering effect is further improved. The process is simple and reasonable, the yield is high, the production cost is low, and the double-layer composite air filter paper is prepared from the shot-cut glass fibers and the glass wool fibers which have different fiber diameters, and the filtering efficiency is improved; besides, the wind resistance is reduced, and the dust holding capacity is improved; meanwhile, a ceratophyllum demersum additive is added, on one hand, the filtration effect on formaldehyde and other harmful gasses can be further improved, and the dust holding capacity of the air filter paper is further improved.