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116results about How to "Suitable for survival" patented technology

Active carbon preparing method by adopting walnut shell as raw material and application of the active carbon

The invention relates to an active carbon preparing method by adopting walnut shell as raw material and an application of the active carbon. The walnut shell is adopted as the raw material. The active carbon is prepared by adoption of a vacuum pyrolysis method through steps of smashing, drying, charring, puffing for activation, cooling, discharging, sieving, and the like. The obtained active carbon is applied as a microbial fertilizer carrier. The preparing method and the application are advantaged by: short production period, low reaction temperature, low production cost, low energy consumption, no pollution to the environment, and capability of improving the soil granular structure, reducing soil hardening, enhancing the water retention property of the soil, playing a role of nitrogen-fixation controlled release fertilizers, and reducing the using amount of fertilizers and decomposed crop straw when the active carbon is applied as a microbial fertilizer carrier and used in the agriculture.
Owner:石家庄金太阳生物有机肥有限公司

System and method for landscape fishpond purification treatment

The invention mainly discloses a system and method for landscape fishpond purification treatment. According to the technical scheme, the system comprises a water quality monitoring device, a water purification device and a water surface decontamination device, the water purification device comprises a shell, a water inlet pipe, an aerator pipe, a blowdown pipe and a water outlet pipe, a filtering area, an active mud area and a sterilization area are arranged in the shell from inside to outside in sequence in a nested mode, and both the water inlet pipe and the blowdown pipe are connected with the filtering area; the water outlet pipe is connected with the sterilization area, the two ends of the aerator pipe are located outside the active mud area and the shell respectively, and the water surface decontamination device comprises a collection box, a stain adsorption head and a stain adsorption pipe. The method comprises the steps of 1, installing the water purification device; 2, installing the water surface decontamination device; 3; conducting water quality detection; 4, conducting water purification; 5, conducting water surface purification; 6, conducting detection again; 7, cleaning the devices. The system is reliable in performance, water purification can be conducted automatically, water quality purification efficiency is high, treatment time and period are short, and normal operation of a fishpond system is guaranteed.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Method for improving survival rate of salt-tolerant oilseed rape in saline-alkali soil

The invention discloses a method for improving survival rate of salt-tolerant oilseed rape in saline-alkali soil. The method is characterized in that a seeding bed is properly raised according to the underwater level and saline alkaline degree of the saline-alkali soil; salt is discharged through an open trench along with water; the variety of salt-tolerant oilseed rape is selected; then bio-organic fertilizer is applied. The method is a method for cultivating crops in the saline-alkali soil, and is simple to operate, low in cost, and easy to be popularized; the seeding bed is raised to drain water timely, so that the salt discharging efficiency can be increased, and an ecological environment suitable for plant living is created.. With the adoption of the method, the survival rate of the salt-tolerant oilseed rape in severe saline-alkali soil (containing 0.5 to 0.8% of salt content) is effectively improved and is more than 95%.
Owner:NANJING AGRICULTURAL UNIVERSITY

Marsh gas biological desulphurization energy-saving method

The invention provides a marsh gas biological desulphurization energy-saving method, which relates to a marsh gas desulphurization method. The invention solves the problems that the biological desulphurization process in the prior art is not easy to control, the conditions and requirements are harsh, and sulfureted hydrogen can be easily and directly converted into sulfur oxides by germs, so the sulfur oxide can not be easily discharged from a system. The method comprises the following steps of: 1. adding thiobacillus denitrificans and nitrobacteria into nutrient fluid, then spraying the nutrient fluid onto filling materials and culturing the filling materials until biomembranes are formed; and 2. completing the process after the marsh gas is in contact and reacts with the biomembranes. The biological desulphurization energy-saving method in the invention is easy to control, has slack condition requirements and solves the problem that the sulfureted hydrogen can be easily and directly converted into the sulfur oxides by the germs to be released to the marsh gas again, the desulphurization efficiency can achieve higher than 95 percent when the sulfureted hydrogen content in the marsh gas is between 1000 and 4000mg / L, in addition, elemental sulfur can be recovered, the thiobacillus denitrificans and the nitrobacteria are symbiotic systems, the self-sufficiency effect is realized basically through the marsh gas, and the energy-saving effect is realized.
Owner:HARBIN INST OF TECH

Infant incubator for obstetrics department

The invention discloses an infant incubator for an obstetrics department. The infant incubator for the obstetrics department comprises an electronic control box and a glass opening and closing door, wherein the glass opening and closing door is directly mounted at the upper end of the electronic control box; the glass opening and closing door is hinged to a plurality of circular opening and closing windows; an air purifier, a constant-temperature regulation and control mechanism and a humidifying mechanism are arranged in the electronic control box; a cavity separating bed plate is arranged atthe upper end of the electronic control box; a cradle mechanism is arranged in the cavity separating bed plate; an air bag moving mechanism is further arranged in the cradle mechanism; and an air inlet ventilating opening and an exhaust opening are further formed in two ends of the cavity separating bed plate. A constant-temperature, constant-humidity and sterile neutral environment is provided,by a cradle and the air bag moving mechanism, limb movement and shaking of an infant can be implemented, the comfort is improved, long-time crying of an infant is prevented, the posture of the infantcan be changed, and discomfortableness due to the fact that the infant lies on the bed for a long time is prevented.
Owner:QINGDAO JIAOZHOU CENT HOSPITAL

Bottom-seed sea water culture facilities suitable for sediment bottom sea area

The invention relates to a bottom sowing-type mariculture facility which is suitable for the sea area with silt bottom, in particular to a bottom sowing-type raft frame and a net cage for marine bivalve mollusks, sea cucumbers or mixotrophic culture of marine bivalve mollusks and sea cucumbers. The facility is provided with a PVC pipe, a polyethylene rope for fixing the PVC pipe, a webbing, a stake or an anchor for fixing the facilities, a rope fixed on the stake or the anchor, and a fixable floating ball which is connected to the rope and floats on the surface of water; the PVC pipe is fixed on the polyethylene rope in parallel, the polyethylene rope is arranged in parallel, is perpendicular to the PVC pipe, is positioned at the upper side and the lower side of the two terminals of the PVC pipe and forms the structure similar to a 'soft ladder'; the 'soft ladder' is externally covered by the webbing, and a plurality of independent net cages are formed by combining the PVC pipe, the polyethylene rope and the webbing; the two ends of the undrawn 'soft ladder' are fixed at the bottom of the sea by the stake or the anchor respectively, and the floating ball is fixed at the two ends of the 'soft ladder' by the rope. The facility can effectively prevent the enemies and reduce the influence of storm and ocean current, thus being convenient for management and harvest and favorable to the comprehensive utilization of mariculture area.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Probiotic composition containing eight ingredients with functions of strengthening spleen and stomach and benefiting intestinal tracts

The invention discloses a probiotic composition containing eight ingredients with functions of strengthening the spleen and stomach and benefiting intestinal tracts. The composition is prepared from 1-9 parts of traditional Chinese medicinal herbal extracts, 0.01-2 parts of intestinal probiotics available for foods and 0.1-5 parts of prebiotics. The composition has a function of effectively regulating the spleen and stomach to achieve the effects of strengthening the spleen, removing humidity, tonifying qi, nourishing stomach and kidneys and boosting the essence; edible intestinal probiotics are added into the composition to improve the micro-ecological environment of intestinal tracts and improve the intestinal mucosa absorption capacity; prebiotics beneficial to intestinal health are further added into the composition to enable the intestinal environment to be more suitable for survival of probiotics; and the probiotics and prebiotics combined with traditional Chinese medicinal herbal essence can be used for better regulating functions of spleen, stomach and intestinal tracts in multiple aspects, so that the symptoms including weakness of the spleen and the stomach, appetite decrease, dyspepsia, abdominal pain, diarrhea and the like can be relieved.
Owner:DONGGUAN JIANLAIFU IND INVESTMENT

Low-temperature storage liquid for cells, sodium alginate gel, cell gel, preparation method, use method and application thereof

The invention belongs to the technical field of storage, regeneration and repair of cells and discloses low-temperature storage liquid for cells. The low-temperature storage liquid is mainly preparedfrom the following components in percent by mass: 0.8%-1.5% of mannitol, 2%-3% of human serum albumin, 3%-7% of low-molecular dextran, 0.1-0.3% of glutathione, 0.5%-2% of epigallocatechin gallate, 3%-5% of adenosine, 0.5%-1% of glucose, 0.8% of NaCl, 0.2% of KCl, 0.1% of CaCl2 and the balance of water. The invention also provides sodium alginate gel, which contains sodium alginate, calcium chloride, hyaluronic acid and the low-temperature storage liquid for the cells and the like, and also provides cell gel and a preparation method thereof as well as application of the low-temperature storageliquid for the cells, the sodium alginate gel and the cell gel. The invention has the advantages that the low-temperature storage liquid for the cells can maintain cell activity for longer time at temperature of 2-8 DEG C, the sodium alginate gel can be used as temporary short-term storage materials of cells from various sources and brackets of cell tissue engineering, and the cell gel can be usedas a medical wet wound dressing and can be used for repairing soft tissues, refractory-healing wound skins and mucosal wound injuries.
Owner:CHENGDU YUANSHAN BIOTECH CO LTD

Formula milk powder for students and preparation process thereof

The invention relates to a formula milk powder for students. The formula milk powder for students comprises: 30-50% of whole milk powder, 5-10% of concentrated whey protein powder, 15-30% of desaltedwhey powder, 5-8% of mixed vegetable oil, 5-18% of maltodextrin, 6-12% of white granulated sugar, 0.1-0.5% of phospholipids, 0.09% of a compound vitamin premix, 0.09% of a compound mineral premix, 1.11% of calcium carbonate, 0.8-2.6% of whey protein powder containing alpha-lactalbumin, 0.1-0.5% of DHA powder, 0.1-0.5% of arachidonic acid powder, 1-5% of galacto-oligosaccharide, 1-5% of fructo-oligosaccharide, 0.01-0.1% of animal bifidobacterium animalis Bb-12, 0.05% of a compound nutrition enhancer premix, 0.022% of L-sodium ascorbate, 0-0.1% of lactoferrin, 0-1.2% of phosphatidylserine and 0-0.067% of yeast beta-glucan. In the invention, nutrient elements such as active probiotics, prebiotics GOS, FOS, polyunsaturated fatty acids, vitamin A, vitamin D, iron, zinc, calcium and taurine areparticularly added, and meanwhile, the probiotics are added to promote a balanced immune system; an environment which is not beneficial to the growth of pathogens is created to maintain natural immuneprotection; and the formula milk powder helps to reduce gastrointestinal disorders.
Owner:SHANGHAI CHENG GUAN DAIRY CO LTD

Disinfecting and oxygenating agent for aquaculture

The invention relates to the technical field of disinfectants, in particular to a disinfecting and oxygenating agent for aquaculture. The disinfecting oxygenating agent comprises the following components: zeolite powder, activated carbon, a purifying agent, an oxygen producer, a beneficial bacteria mixture, polyacrylamide, an inorganic flocculant, dextrin, sodium chlorite, sodium hydrogencarbonate, L-ascorbic acid and protease, wherein the purifying agent is a non-toxic heavy metal adsorbent; the oxygen producer is coated slow-release sodium percarbonate or coated slow-release calcium peroxide; the beneficial bacteria mixture contains strains of bacillus megaterium, photosynthetic bacteria and EM bacteria; the inorganic flocculant is a high-efficiency flocculant formed by compounding polyaluminum ferric chloride and ferric oxide. The disinfecting and oxygenating agent is safe and healthy, can continuously increase oxygen in a water body, and has the functions of disinfecting and adsorbing heavy metal elements.
Owner:HEFEI ZHENXUN LOW TEMPERATURE TECH CO LTD

Composite substrate suitable for artificially breeding ragworms and construction method thereof

The invention relates to a composite substrate suitable for artificially breeding ragworms and a construction method thereof and belongs to the technical field of aquiculture. According to the life habit of the ragworms and different proportions and thicknesses, pebble, fine sand, clay and the like with different grain diameters run through a coarse pebble layer, a fine pebble layer, a coarse sand layer, a fine sand layer and a clay mud layer in sequence from bottom to top to perform composite matching; and the thickness range of the composite substrate is between 50 and 100 cm. The composite substrate has high permeability and is suitable for the living of the ragworms and difficult to decay and deteriorate. A surface layer contains mass organic matters which can provide high-quality sufficient bait for the ragworms. Through detection, the composite substrate suitable for artificially breeding the ragworms and the construction method of the embodiment of the invention are used for breeding the ragworms; the survival rate of the breeding is up to 70 to 90 percent per year; and larvas with weight between 0.5 and 1.0 g can be up to about 10 g after one-year breeding. The body color of the ragworms is maroon; the heads of the ragworms have fluorescence; and the constitution is lusty.
Owner:DALIAN OCEAN UNIV

Multifunctional soil improvement agent

The invention relates to the technical field of agricultural chemical materials and specifically relates to a multifunctional soil improvement agent. The soil improvement agent is prepared from the following components: desulfurized gypsum, humic acid, polystyrene loaded polyamide-amine type resin, an adsorption auxiliary, polyacrylamide, citric acid, urea, magnesium sulfate, calcium gluconate andcompound amino acid, wherein the adsorption auxiliary is a kind of porous and loose adsorptive particles; the polystyrene loaded polyamide-amine type resin is a macromolecular substance with a dendritic functional group and can effectively adsorb metal ions such as Hg, Cu, Ni, Cd, Zn and Pb. The soil improvement agent not only can loosen the soil, improve the soil acidity and alkalinity and the microflora quality and recover the land productivity, but also can adsorb and cure the heavy metal elements in soil.
Owner:HEFEI SHENWO HORTICULTURE CO LTD

Method for in-situ restoration of saline-alkali land ecosystem in Yellow River delta by using triarrhena lutarioriparia and biochar

The invention discloses a method for in-situ restoration of a saline-alkali land ecosystem in the Yellow River delta by using triarrhena lutarioriparia and biochar, and belongs to the technical fieldof saline-alkali land improvement. According to the addition of the biochar, specifically, calculation is conducted according to the soil pH, the salt content and the soil property, the soil pH of coastal salt-alkali land of the Yellow River delta is 8.5, the salt content is 0.75%, the soil is sandy clay loam in property, the content of organic matter is low, and the application amount of the biochar is 2-4% of the weight of the soil. An application method comprises the steps that (1) the land is leveled; (2) the specific addition amount of the biochar is calculated according to the soil density and planting depth of an improvement site, the specific addition amount of the biochar is 2-4% of the weight of the soil, and a calculation method for the weight of the soil is that the weight of the soil is equal to a product of the surface area of the improvement site, the planting depth and the soil density; (3) a calculated amount of biochar is evenly laid on the surface of the soil, and soil turning and even mixing are conducted; (4) aging is conducted for three days after even mixing, and miscanthus of triarrhena lutarioriparia can be planted. By means of the technical scheme, the in-situ restoration of the saline-alkali land ecosystem in a coastal area of the Yellow River delta can be achieved, physiochemical characteristics and biocenosis structures of the soil of the restored saline-alkali land are greatly changed, and the restored saline-alkali land is suitable for the survival and normal growth of miscanthus.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Skin spermatogonium protection liquid and preparation method thereof

The invention provides skin spermatogonium protection liquid and a preparation method thereof. The protection liquid is mainly formed by dissolving aminoglycoside antibiotics in DMEM (Dulbecco's modified eagle medium) culture medium water solution, 80-120U of the aminoglycoside antibiotics are dissolved in every mL of the DMEM culture medium water solution, and the concentration of the DMEM culture medium water solution is 13-25mg / mL. The skin spermatogonial stem cell protection liquid sufficiently simulates a human internal environment and is more suitable for survival of skin stem cells and spermatogonial stem cells and stable in property, the survival rate of the skin stem cells and the spermatogonial stem cells can be remarkably improved, and cultivation of the skin stem cells and the spermatogonial stem cells can be further enlarged while the skin stem cells and the spermatogonial stem cells are preserved.
Owner:CENTURY BIOSTRENGTH BEIJING PTY LTD

Gel for culturing ant and preparation method thereof

Provided is a gelatin for breeding ants and process for preparation. The gelatin of the invention comprises the following proportional raw materials by weight: 1-2 parts of Kappa-carrageenan, 0.5-1 part of Iota- carrageenan, 10-16 parts of sucrose, 0.015-0.02 part of preservative and 100 parts of drinking water. The method for preparation is that first Kappa-carrageenan, Iota-carrageenan, sucrose and preservative which are specified quantity are blended to soak into drinking water until no caking dry matter exists, and then after the mixture is soaked, the mixture is heated to 100 DEG C for 10 minutes, and at last after the mixture is heated, the mixture is cooled and coagulated. Experimental observation has proved that the gelatin of the invention has the advantages that the physical property of the gelatin is similar to soil-physical property in ants cave, the gelatin is suitable for the existence of ants, has high transparency and comprises sugar which is capable of maintaining ants' life and the like, and beneficial to observe and research the underground life detail of ants.
Owner:袁晓光

Method for treating breeding water by composite bacteria

The invention relates to a method for treating breeding water by composite bacteria. The invention adopts the technical proposal that: 1.5 to 3.0 percent of the composite bacteria accounting for the total weight of the breeding water is thrown into the breeding water every three days, wherein the composite bacteria is mixed bacteria of photosynthetic bacteria and streptococcus faecalis according to a weight ratio of 1:0.5-1.5. The method has low cost and stable action effect, and can effectively improve the water quality of the breeding water, enhance the resistance capability of aquatic organism, and improve the survival rate of the aquatic organism.
Owner:LIAONING UNIVERSITY

Method for preparing ecological organic crude fertilizer through rapid degradation of livestock and poultry wastes

The invention belongs to the field of preparation methods of organic fertilizers, and discloses a method for preparing an ecological organic crude fertilizer through rapid degradation of livestock and poultry wastes. The method comprises the following steps: (1) conditioning the wastes: adding an organic conditioner and an inorganic modifier sequentially into the livestock and poultry wastes, and uniformly stirring to obtain a mixture I; (2) adding bacteria: heating the mixture I obtained in the step (1) to raise the internal temperature of the mixture I, and adding the degrading bacteria to obtain a mixture II; (3) performing assistant fermentation: heating and stirring the mixture II, and forcibly convecting the mixture II till the moisture content of the mixture II reaches 30-40%, so as to obtain the organic crude fertilizer. With the method provided by the invention, the dehydration characteristics of the livestock and poultry wastes can be effectively improved, heavy metals are fixed and antibiotics are oxidized; organic matters and crude fiber in the livestock and poultry wastes and the organic conditioner can be utilized and decomposed by the degrading bacteria within a short time, so that bound water is easier to remove.
Owner:HUAZHONG UNIV OF SCI & TECH

Application of whiteleg shrimp culture feed

The invention provides application of a whiteleg shrimp culture feed which is applicable to whiteleg shrimp at each stage. The application of the whiteleg shrimp culture feed is characterized in that the feed is mixed with water flea to feed young shrimps; the feed is mixed with water flea, alga and other live foods to feed the shrimps at the domestication stage; the whiteleg shrimp is completely fed with the feed after domestication. The whiteleg shrimp culture feed has the beneficial effects that the whiteleg shrimp culture feed is applicable to the culture of the whiteleg shrimp in each stage; the feed is prepared with the nutritional substances suitable for the growth of the whiteleg shrimp; the nutritional structure is reasonable; the growth promoting effect is obvious; the culture period is reduced; the immunity of the whiteleg shrimp can be improved; the prevalence rate can be reduced; moreover, the calcium can be absorbed well; the soft-shell shrimp is greatly reduced; the whiteleg shrimp at each stage is high in stability, high in utilization rate, and small in deposit at the bottom of a pool after being launched; the content of organic nitrogen and phosphorus in water can be effectively decreased, and the water purifying effect can be achieved, therefore, a good living environment is provided to the whiteleg shrimp.
Owner:磐安海璞食品科技有限公司

Method for disinfecting and sterilizing aquaculture pond water body with sterilizing electrochemical water

ActiveCN105645556AAvoid breedingRealize fish disease prevention and controlAntibacterial agentsBiocideMicroorganismMicrobiology
The invention relates to a method for disinfecting and sterilizing an aquaculture pond water body with sterilizing electrochemical water, and belongs to the technical field of disinfecting and sterilizing water bodies in aquaculture ponds. A NaCl solution with the concentration of 5-7%o is treated in a sterilizing electrochemical water generator to generate the sterilizing electrochemical water, a specific treatment method is used in cooperation, microorganisms such as germs, algae and worms in the aquaculture water body and live fish body surfaces can be effectively killed, the harmful microorganisms are prevented from breeding in quantity, fish disease prevention and control can be achieved effectively, water quality is improved to a certain degree, and aquaculture benefits are increased. In addition, the adverse effects on fish are avoided due to the specific sterilizing electrochemical water and the specific water body treatment method.
Owner:TONGWEI

Non-electric CO2 Refrigeration Dehumidification Air Conditioner

A non-electric carbon dioxide refrigeration dehumidification air conditioner, the purpose is to reduce the temperature and humidity inside the rescue cabin or chamber when the power is cut off; Fan, liquid inlet pipeline and exhaust pipeline, high-pressure pressure gauge and low-pressure pressure gauge, flared adapter; emergency control valve, control valve, high-pressure pressure gauge and low-pressure pressure gauge are installed on the front of the box; the right side of the box There is an air outlet on the surface, and an air inlet on the top; the throttling pressure reducer includes a thick liquid inlet pipe, a dryer, a fine mesh, a slender pipe, an outlet, an insulation material and a pressure reducer shell; the dryer is a cylindrical container A fine mesh for removing solid impurities in the refrigerant is installed near the slender tube inside, and a desiccant for absorbing water is installed at the front end of the fine mesh; the internal gap of the pressure reducer shell is filled with thermal insulation material, and the thermal insulation material is made of zirconium-containing ceramic fiber.
Owner:阳泉煤业集团华越机械有限公司

Branch alternative habitat construction method based on dam dismantling and local micro-landform manual intervention

PendingCN111651895ASuitable for survivalImprovement of unsatisfactory river sections with local habitat qualityGeometric CADDesign optimisation/simulationMain stemZoology
The invention discloses a branch alternative habitat construction method based on dam dismantling and local micro-landform manual intervention, which comprises the following steps: (1) selecting a branch which is most similar to fish community structure characteristics and habitat heterogeneity of a target main stream from branches of the target main stream as an alternative habitat branch; (2) constructing a one-dimensional ecological river appearance model for replacing habitat tributary, and simulating river appearance change and habitat quality change of the replaced habitat tributary after dam removal; (3) constructing a two-dimensional ecological river appearance evolution model for the local river reach of which the habitat quality is lower than a preset threshold value after dam removal of the alternative habitat tributary, and simulating the river appearance change and habitat quality change of the local river reach after different local ecological improvement measures are implemented; and (4) removing the dam selected as the tributary for replacing the habitat, and reconstructing the landform of the local river reach according to the ecological improvement measure with the maximum habitat quality improvement obtained by simulation. According to the invention, a branch alternative habitat more suitable for fishes can be constructed.
Owner:NANJING HYDRAULIC RES INST

Deer ham and bloating method thereof

The invention relates to a deer ham and a curing method thereof. The curing method mainly comprises four steps of cooling and fresh-keeping, fractionated add of salt and curing, soaking, washing and basking, temperature controlling and fermentation of selected material. The lean meat of the cured deer ham is 65-75 percent by weight, the salt is 10-15 percent based on sodium chloride contained in the lean meat and the peroxide value is 20 percent meq / kg-32 percent meq / kg based on fat. The deer ham is characterized by reducing activity of active substances through cooling and fresh-keeping at low temperature, preventing residual blood contained in the meat from escape during the curing through fractionated curing and reserving the nutrition of deer meat to the utmost extent. Salt dosage, fermentation temperature and humidity conditions are controlled preferentially and growth and production of beneficial bacterium are facilitated while survival of harmful bacterium is inhibited, thus having advantages of complete fermentation of all parts and high content of a plurality of amino acids as well as a healthy and nutrient food with good taste, flavor and color.
Owner:诸葛树华

Three-dike two-passage reinforced surface flow artificial wetland and operation method of three-dike two-passage reinforced surface flow artificial wetland

The invention provides three-dike two-passage reinforced surface flow artificial wetland and an operation method of the three-dike two-passage reinforced surface flow artificial wetland. The artificial wetland comprises a bed body and a substrate, wherein the inside of the bed body is filled with the substrate; the cross section of the bed body is in a rectangular shape; the bed body is inclined from the water inlet end to the water outlet end in the length direction; two ditches are arranged in the substrate to form three dikes including a left side dike, a middle dike and a right side dike. According to the operation method, (1), when the height of the middle dike is lower than that of the left side dike and the right side dike, the submerging operation is adopted; (2) when the height of the middle dike is greater than the height of the left side and the height of the left side dike, the non-immersing operation is adopted; (3) when the height of the middle dike is identical to the height of the left side dike and the height of the right side dike, dry and wet alternate operation is adopted. The structure of the artificial wetland is changed; the sewage treatment area and the biodiversity are increased; the defects of great occupied area and low efficiency of the artificial wetland are overcome; meanwhile, after one passage is changed into two passages, the dry and wet alternate operation of the treatment process can be realized; the biodiversity is realized; the sewage processing efficiency is obviously improved.
Owner:SHANDONG UNIV

Method for preparing high-additional-value chemicals by different pH acid-alkali pretreatment of biomass and one-step cracking

The invention relates to a method for preparing high-additional-value chemicals by different pH acid-alkali pretreatment of biomass and one-step cracking. The method comprises the following steps: pulverizing the biomass into powder; pretreating the powder by using different pH acid-alkali treatment solutions; after pretreating, carrying out rotary evaporation and vacuum drying to obtain the treated biomass powder; loading the treated biomass powder and an HZSM-5 molecular sieve in a reaction tube; and carrying out thermal cracking reaction in the nitrogen atmosphere at the heating speed of 50-80 DEG C / min to obtain the chemicals. The method is easy to operate and low in requirements of equipment; and the used biomass is agricultural wastes such as sugar cane bagasse and corn cobs, the high-additional-value chemicals such as 2,3-dihydrobenzofuran, 4-ethyl-guaiacol, levoglucosenone, 1-hydroxyl-2-butanone and 1,2-cyclopentanedione are produced by the agricultural wastes, in the aspect of raw materials, the agricultural wastes are cycled, environmental pollution is reduced, and the method has high economic value and social value and has important significance.
Owner:ZHEJIANG UNIV OF TECH

Adult reproduction device of ideopis similis, manufacturing method of adult reproduction device, and reproduction method of ideopis similis

The invention provides a reproduction device of a rare butterfly namely ideopis similis, a construction method of the reproduction device and a reproduction method of the ideopis similis. In accordance with the problem of living environment adaptability existing in large-scale reproduction of the ideopis similis, the reproduction device of the ideopis similis is constructed and comprises a foundation, a reticulate pattern chamber fixedly mounted on the foundation, as well as roosting plants, avoiding plants, bee plants, and host plants, which are arranged on the inner foundation of the reticulate pattern chamber. The adult reproduction device of the ideopis similis, of which the roosting plants, the host plants, the bee plants, the avoiding place plants and an artificial nectar source are reasonably distributed, notably increases the survival rate, the mating rate and the reproduction potential of the adult ideopis similis, the reproduction of the ideopis similis is effectively stabilized to a high level, and powerful guarantee is provided for scaleable breeding of the ideopis similis.
Owner:THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY

Method for rainwater collection and water retention afforestation of arid mountain bare-rooted seedlings

ActiveCN106171764AGood for fast rootingRich varietyBacteriaClimate change adaptationAridMushroom
The invention discloses a method for rainwater collection and water retention afforestation of arid mountain bare-rooted seedlings and belongs to the technical field of water-saving afforestation methods. The method comprises the steps of digging tree pits according to the size of the transplanted seedlings during afforestation, wherein soil which is dug out forms backfill; evenly mixing solid inoculant with part of backfill, and applying the mixture around root systems of the afforestation seedlings; field planting and watering. The solid inoculant is formed after an inoculant adsorption carrier is inoculated with liquid compound microorganism inoculant, wherein the liquid compound microorganism inoculant is formed by mixing of (Bacillus fusiformis) L106, (Brevundimonassp.) X60 and Lactobacillus casei, and the inoculant adsorption carrier is formed by adding crosslinked polyacrylamide to a mixture of mushroom residues, wormcast, saw dust and activated humic acid. Host materials of the inoculant adsorption carrier are suitable for growth and reproduction of microorganisms in complex inoculants, have high water-absorbing ability and can store more rainwater in the tree pits temporarily, and are suitable for survival of microorganisms in microorganism inoculants.
Owner:SHANDONG FOREST SCI RES INST

Controllable siphon alternating-type fish and vegetable co-existing system

The invention provides a controllable siphon alternating-type fish and vegetable co-existing system. The controllable siphon alternating-type fish and vegetable co-existing system comprises an aquaculture system, a control system, an alternating-type water circulating system and a gravel planting bed system; a water inlet position is arranged at one side of a fishpond, and a water outlet positionis arranged at the bottom of the other side of the fishpond; the gravel planting bed system comprises a gravel planting bed, a water supply side is arranged at one side of the gravel planting bed, andis located at the same side as the water outlet position of the fishpond, a water return side is arranged at the other side of the gravel planting bed, and is located at the same side as the water inlet position of the fishpond, and the water outlet position of the fishpond is connected with the water supply side of the gravel planting bed through a siphon pipe and a water supply pipe. By means of the controllable siphon alternating-type fish and vegetable co-existing system, an alternating water circulating structure is adopted, dissolved oxygen is added when water flows past the gravel planting bed, when flowing past the fishpond, the water is continuously fed to fish, the whole process is free of residue of pesticide and drugs, and the water quality is suitable for the existence of thefish and plants, so that the fish does not easily get sick in a high-density environment, and the yield is greatly increased.
Owner:农政齐民科技(天津)有限公司

Preparation method and use method of denitrification solid-state carbon source

The invention discloses a preparation method and a use method of denitrification solid-state carbon source, and belongs to the technical field of water treatment. The preparation method of the denitrification solid-state carbon source comprises the following steps: adding a certain proportion of sodium bicarbonate, hydrous ferric chloride and anhydrous manganese chloride in molten PHBV, cooling tomanufacture modified PHBV material, bagging the filler to perform oscillation pre-treatment in 1-6% beta-glucan aqueous solution, airing and then placing in a reactor to use; injecting a water sampleobtained by mixing prepared sewage and anaerobic sludge in the reactor, continuously running for 36-48 hours, continuously running by using the prepared sewage, wherein the effluent NO3--N concentration can be lower than 5mg / Lafter biofilm formation. The advantage of the preparation method is that the attachment space of the microorganism is greatly increased, the denitrification bacteria numberis improved; the reactor starting time is shortened, the material wettability is improved; the absorption on the nutrient substance by the microorganism is accelerated, the microorganism propagation is strengthened; the effluent nitrogen nitrate concentration is stable and can reach the sewage discharge requirement; the operation is simple and easy to control.
Owner:SHANXI UNIV

Four hole-type circular truncated cone-shaped mud flat combined constructed reef and construction method thereof

PendingCN108308079AGuaranteed lodging resistanceIncrease the amount of biological resourcesClimate change adaptationPisciculture and aquariaReinforced concreteEngineering
The invention relates to a four hole-type circular truncated cone-shaped mud flat combined constructed reef. The four hole-type circular truncated cone-shaped mud flat combined constructed reef is composed of single fish reefs, middle connecting beams and middle connecting beam support vertical piles, wherein every single fish reef is composed of a circular truncated cone, a cross beam and vertical piles; the outer edge of the circular truncated cone is a ring, and three horizontal rods are embedded inside the ring to form an equilateral triangle; the quartering parts the bottom of the ring ofthe circular truncated cone are provided with four downward first clamping orifices for clamping the cross beam; the left and the right of the cross beam are downwards provided with second clamping orifices for matching with the vertical piles, and third clamping orifices for perpendicularly matching with neighboring cross beam; the upper end of each vertical pile is provided with a reinforced concrete square pile with a Y-shaped clamping orifice for arranging the cross beam; the single fish reefs are sequentially connected in rows; the middle connecting beams are used for connecting every two neighboring rows of fish reef groups. The four hole-type circular truncated cone-shaped mud flat combined constructed reef is stable and firm, convenient to repair, large in area of formed pools andcapable of effectively improving the biological resource quantity and providing a better living environment for living beings.
Owner:上海市水生野生动植物保护研究中心

Composite technology for coking wastewater treatment

The invention discloses a coking wastewater treatment composite process, which comprises an anaerobic pool, anoxic pool, an aerobic pool, a membrane pool, and a backwashing pool; specifically, it is composed of the following steps: the coking wastewater enters the anaerobic pool, and in the anaerobic pool The phosphorus accumulating bacteria release phosphorus and absorb easily degradable organic matter such as low-level fatty acids, and then enter the anoxic pool for biological denitrification through overflow, convert it into nitrogen and release it into the air, and then enter the aerobic pool for biological nitrification It is converted into nitrate, and then enters the membrane tank to suck the water out to the backwash tank and backwash the hollow fiber membrane module regularly through the metering pump. The invention adopts a composite process to treat coking wastewater, and through the organic combination of biological treatment and membrane treatment, the nitrification capacity of the treatment system is improved, and a good treatment effect is achieved for coking wastewater with a COD concentration of 2500ppm and an ammonia nitrogen concentration of 300ppm.
Owner:INNER MONGOLIA UNIVERSITY
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