33results about How to "Reduces bad odor" patented technology

The invention discloses a high-efficient fermentation device of an organic fertilizer and a device thereof and relates to fermentation of the organic fertilizer. The invention provides the high-efficient fermentation method of the organic fertilizer and the device thereof, which have the advantages of simplicity in operation, lower treatment cost, smaller occupied space, sanitary treatment space, little stinky gas, fast treatment speed, good effects and good drying effect. The fermentation device is provided with a tank body of a fermentation tank, a multi-layer three-dimensional structure is arranged in the tank body, all the layers constitute interlayers by rotatable blinds which are mounted at the equal intervals side by side, and each layer of the rotatable blind is respectively connected to an interlayer control switch through a connecting force arm; and a fermented material outlet is arranged below the bottom layer of the tank body, a cross beam is arranged on the fermented material outlet, vent holes are arranged on the two side surfaces of the tank body, an exterior wall is arranged outside a side-surface wall body of the tank body, and the top layer of the tank body of the fermentation tank forms an opening. The fermentation method comprises the steps of stirring materials, feeding the materials, fermenting and discharging the materials.

The invention discloses pentanediamine dodecanedioate, a crystal thereof, crystalline powder thereof and a preparation method thereof. The pentanediamine dodecanedioate is a salt which is formed in the manner of combining the divalent cation of pentanediamine with the divalent anion of dodecanedioic acid in a mole ratio of 1 to 1 and presents a solid state at normal temperature. The crystal structure of the pentanediamine dodecanedioate is C17H36N2O4.nH2O, belongs to a triclinic system and has a space group P-1; a is equal to 8.4747(7) angstroms; b is equal to 8.5175(7) angstroms; c is equal to 15.3901(14) angstroms; alpha is equal to 82.473(2) degrees; beta is equal to 78.06(10) degrees; gamma is equal to 86.313(2) degrees; the volume V of a crystal cell is equal to 1076.71(16) angstroms;and a minimal asymmetric unit number Z in the crystal cell is equal to 2. According to the pentanediamine dodecanedioate, the existing form of the pentanediamine is changed; the stability of a product is improved; and an original foul odor is greatly decreased.

The invention discloses a pentamethylenediamine succinate, a crystal thereof, and a preparation method of the crystal. The pentamethylenediamine succinate is a salt, being a solid at normal temperature, formed by combining pentanediamine divalent cations with succinate divalent anions according to a molar ratio of 1:1. The structure of the crystal is C9H20N2O4, the crystal belongs to a monoclinicsystem and has a P2(1) / c space group, a = 1.06508(9) nm, b = 1.45943(13) nm, c = 0.79248(6) nm, alpha = 90.00 DEG, beta = 107.384(3) DEG, gamma = 90.00 DEG, the unit cell volume V is 1.17557(17) nm<3>, and the minimum number Z of asymmetric units in a crystal cell is 4. The preparation method comprises the following steps: crystallizing the pentamethylenediamine succinate from a solution containing dissolved pentanediamine and succinic acid, separating the crystal from the solution, and drying the separated crystal.

The invention discloses pentanediamine ethanedioate, a crystal thereof and a preparation method thereof. The pentanediamine ethanedioate is a salt which is formed in the manner of combining the divalent cation of pentanediamine with the divalent anion of ethanedioic acid in a mole ratio of 1 to 1 and presents a solid state at normal temperature. The crystal structure of the pentanediamine ethanedioate is C7H16N2O4, belongs to a triclinic system and has a space group P-1; a is equal to 6.849(5) angstroms; b is equal to 9.484(7) angstroms; c is equal to 10.764(8) angstroms; alpha is equal to 110.712(8) degrees; beta is equal to 97.505(8) degrees; gamma is equal to 91.358(8) degrees; the volume V of a crystal cell is equal to 646.5(8) angstroms; and a minimal asymmetric unit number Z in the crystal cell is equal to 2. The preparation method comprises the following steps of crystallizing out the pentanediamine ethanedioate containing crystalline water from a solution containing dissolved pentanediamine and ethanedioic acid, separating out the crystal from the solution, and drying the separated crystal.

The invention relates to a composition for reducing peculiar smell of dog feces. The composition comprises, by weight, 0.1-1 part of yucca extract, 0.1-0.5 part of vitamin complex, 10-50 parts of fructo-oligosaccharide, 10-50 parts of inulin, 5-30 parts of cellulase, 10-50 parts of protease, 10-50 parts of beta-dextranase and 0.1-3 parts of lactobacillus acidophilus. Due to combination of the composition, generation of volatile and irritant gases in feces excreted by dogs can be reduced, and the smell of feces can be reduced.

The invention relates to a compost preparation method for performing four-stage fermentation by adopting an enzyme-bacterium composite leavening agent. The compost preparation method comprises the following steps: pretreatment of agricultural and forestry wastes: crushing high-lignin waste, putting the crushed waste into a drum mixer, mixing and coordinately matching the crushed waste with the excrements of human beings, livestock and poultry, adding the enzyme-bacterium composite leavening agent in a mixing process, and adjusting the water content, the carbon-nitrogen ratio and the volume weight of the agricultural and forestry waste stock to obtain a fermentation raw material; stacking of the fermentation raw material; and fermentation of the raw material, wherein a fermentation period is 25-35 days, the fermentation is divided into four stages, namely a heating high-oxygen stage, a high-temperature low-oxygen stage, a cooling oxygen-deficient stage and a normal-temperature standing stage, and the fermentation is completed after the four stages. The technical problems that in a compost preparation process, foul smell is generated by fermentation of the excrements of human beings, livestock and poultry, high lignin waste is difficult to degrade, an emission amount of carbon and nitrogen gas is high, and compost quality is low are solved; and finally, agricultural and forestry waste is efficiently returned to the field for utilization, a soil carbon pool is increased, and carbon neutralization is achieved.

The invention discloses pentanediamine sebacate, and a crystal and a preparation method thereof. The pentanediamine sebacate is a salt which is in a solid state at normal temperature and is formed bycombining pentanediamine divalent cations with sebacic acid divalent anions in a molar ratio of 1: 1. The crystal of the pentanediamine sebacate has a structure of C11H24N2O4, belongs to a monocliniccrystal system, has a space group of C2, and comprises the following cell parameters: a is 20.0833(18) angstroms; b is 8.5161(9) angstroms; c is 5.3379(7) angstroms; beta is 92.394(2) degrees; a unitcell volume V is 912.15(17) angstroms<3>; and the number of smallest asymmetric units in a unit cell Z is 2. The preparation method comprises the following steps: crystallization of pentanediamine sebacate from a solution containing dissolved pentanediamine and sebacic acid, separation of the crystal from the solution, and drying of the separated crystal.

The invention discloses a composite biological preparation for treating domestic sludge, a preparation method and a treatment method thereof. The composite biological preparation comprises: alcaligenes, arthrobacter, and stenotrophomonas maltophilia; wherein the weight ratio of alcaligenes, arthrobacter, and stenotrophomonas maltophilia is 22-26: 15-20:10-14. The method combines specific strains together, and can effectively decompose organic substances in the sludge after being treated for a certain period of time under normal temperature conditions, and stabilizes the sludge after standing for a certain period of time, which can effectively remove ammonia and H2S from the sludge, removes the foul odor in the sludge, and releases most of the moisture in the sludge in a short time, the treated sludge can be used as a soil amendment, an organic fertilizer, and the like, can be directly used for planting crops without affecting the growth and development of crops, and does not affect thequality of crops.

The invention discloses organic fertilizer, which is prepared from a main material and an auxiliary material, wherein the main material is prepared from plant straw, bean pulp, municipal refuse and river sludge; and the auxiliary material is prepared from clear water, deodorant, alcohol, em liquid, acetic acid, phosphorite powder, dolomite, mica powder, peat soil, urea, potassium sulfate and lime.By using the organic fertilizer, through adding the urea, the potassium sulfate and the lime into the auxiliary material and adding partial components of inorganic fertilizer into the organic fertilizer, the fertilizer supply speed can be regulated through cooperative use; the production cost is decreased; the organic fertilizer has the characteristics of the mutual assistance of rapid release and slow release and the combination of long acting and short acting; the dynamic equilibrium of fertilizer release and crop absorption can be realized; the supply of macro-element, medium-element and micro-element fertilizer is regulated; the transverse equilibrium of a nutritional ingredient is realized; meanwhile, the urea is added into soil and can be suitable for various kinds of soil; the nitrogen content in the soil is supplemented; the potassium sulfate is added and can be used as base fertilizer; the moisture absorption and the agglomeration are difficult and further the potassium content in the soil is supplemented; the lime is added to improve the structure of the soil; and the acidity of the soil can be also neutralized.

The invention discloses a garbage can capable of ventilating and draining water, and relates to the field of garbage can. The garbage can capable of ventilating and draining water comprises an outer barrel, an inner barrel and a barrel cover arranged on a barrel mouth of the outer barrel. Inner barrel holes and outer barrel holes which are different in hole diameter are separately formed in the barrel wall of the inner barrel and the barrel wall of the outer barrel, and the inner barrel holes are connected with the outer barrel holes through connecting tubes, so that a plurality of horn-shaped simple air compression channels are formed, and therefore, temperature of air entering the inner barrel and the barrel is favorably reduced; a liquid in garbage can is capable of being discharged into water draining tubes through the inner barrel holes formed in the inner barrel, a first water draining hole, inner water draining tube holes and a second water draining hole; and the water draining tubes can be used for directly draining liquid into a sewer. Improvement on ventilating and draining of the garbage can is made, and an adsorption device is mounted on the barrel mouth, and air can be fed into the inner barrel as a result of good ventilating performance for favorably reducing temperature in the barrel; and the liquid in the garbage can is capable of being directly drained into the sewer through a plurality of channels, so that quick solid-liquid separation is realized, reproduction speed of bacteria is effectively reduced, and occurrence of foul odor is reduced.

The invention relates to a paper mill deodorant and a preparation method thereof. The preparation method comprises the following steps: adding ethylenediamine tetraacetic acid into water, stirring byusing a stirrer, fully dissolving, and adding a main complex stearic acid and a second complex to fully mix and dissolve; controlling the temperature of the solution, controlling the rotating speed ofthe stirrer, and adding potassium monopersulfate to prepare a stable potassium monopersulfate mixture A; and adding a buffer agent into the mixture A, controlling the pH value of the solution, addinga surfactant, stirring for a certain time, finally adding 2,2-dibromo-3-nitrilopropionamide, and uniformly mixing to obtain the deodorant. According to the invention, the stability of the deodorant is improved by adding various complexes, foul molecules are decomposed into water and carbon dioxide by utilizing oxygen free radicals, sulfuric acid free radicals and hydroxyl free radicals, the combination reaction of the deodorant and the foul molecules is promoted by utilizing the surfactant, and the propagation of microorganisms in a water body is inhibited by utilizing the sterilization disinfectant.

The invention discloses an environment-friendly daily ration for improving the growth performance of Western Anhui white geese. The daily ration comprises raw materials in parts by weight: 60-70 partsof corn, 15-25 parts of peeled soybean meal, 1-5 parts of a mixture of rice bran and husks, 2-8 parts of wheat bran, 2-4 parts of sorghum flour, 1-5 parts of pig bone meal, 1-3 parts of vital gluten,1-2 parts of stone powder, 0.2-1 part of calcium hydrophosphate, 0.1-0.5 part of table salt, 0.2-1 part of selenium yeast, 1-4 parts of purple sweet potato powder, 1-2 parts of green grass powder, 0.2-1 part of radix puerariae powder, 0.1-0.5 part of red yeast rice and 4-8 parts of pre-treated macadamia nut shells. The environment-friendly daily ration for improving the growth performance of theWestern Anhui white geese is rich in nutrient substances, and improves the coordination effect of gastrointestinal tracts of the Western Anhui white geese. On the one hand, the daily ration can promote the Western Anhui white geese to eat; and on the other hand, the daily ration can improve the digestibility, reduce the foul smell of excrement of the Western Anhui white geese, deodorize a feedingplace, reduce pollution, improve the feeding air quality, and improve the immunity of the Western Anhui white geese at the same time.

The invention discloses a device and method for treating waste gas of a quenched and tempered viscosity-adjusting steam jet pump. The device comprises a condenser communicated with a waste gas exhaustion pipeline, a cooling tank communicated with the condenser, an integrated deodorization device communicated with a condensation tank, an ozone reducing tower communicated with the integrated deodorization device and an active carbon adsorption device communicated with the ozone reducing tower, wherein a blower is arranged between the cooling tank and the integrated deodorization device, and an exhaust pipe is arranged on the active carbon adsorption device.

The invention discloses a concentrated feed for milk producing cows, which comprises, by weight, a main material, 7-10 parts of sodium bicarbonate, 35-42 parts of stone powder, 10-15 parts of glucose,8-12 parts of sodium chloride, 18-22 parts of molasses and 90-110 parts of chlorella liquid, wherein the main material comprises 142-156 parts of sprayed corn peel,150-160 parts of corn DDGS, 308-322parts of soybean meal, 95-105 parts of cottonseed meal, 75-90 parts of palm meal, 50-70 parts of sesame meal and 18-25 parts of glutamic acid residue, and the quantity of active chlorella in the chlorella liquid is more than or equal to 104 / mL; the feed can also comprise Chinese medicinal compositions: 2.6-3.5 parts of radix astragali, 1.2-1.8 parts of atractylodis rhizoma, 2.2-2.6 parts of poria, 1.5-2.0 parts of fructus citri grandis peel, and 1.6-2.2 parts of pericarpium citri tangerinae; the preparation method comprises the following steps: mixing and pulverizing the raw materials of theChinese medicinal compositions, sterilizing with steam, fermenting to obtain the Chinese medicinal compositions, and mixing the Chinese medicinal compositions with the rest raw materials of the concentrated feed at 25-30 DEG C to obtain the concentrated feed for milk producing cows; by adopting the concentrated feed to prepare the complete feed for feeding and breeding the milk producing cows, thefeed conversion rate can be improved, the excrement odor can be reduced, the immunity of the cows can be improved, and the milk yield can be improved.

The invention discloses a cattle mattress for absorbing cattle pen dung, and an application thereof. Two specifications of wheat straw mats, namely absorption mats and dense wrapping mats are wove andprocessed by using wheat straw as a raw material, the two specifications of wheat straw mats are made and then sprayed with a compound bacterial agent and a fermentation broth, the wheat straw mats are laid in parallel, and removed by using a rolling shutter manner after the dung is absorbed, new wheat straw mats are replaced and laid, the replaced cattle mattresses are removed to an open area, and stacked, moisturizing fermentation is performed for 30-45 days, and then mechanical crushing is performed to prepare granular, block-shaped or blanket-shaped matrix organic fertilizers. The wheat straw mats for cattle beds have the characteristics of elasticity and softness, are free and simple to lay and remove, and are organic, healthy and hygienic, so that the life comfort of cattle is improved, and the incidence of cattle limbs and breast diseases is reduced.

The invention discloses a health-caring method during a black pig maternal fertility phase. The method comprises steps of selecting a culturing case with an area of 0.5 to 1 square meters, disinfecting and exposing the culturing case under the sun, controlling the temperature of the culturing case at 18 DEG C to 25 DEG C and relative humidity of 40 t o50% for future use, in the fertile period of the black pig parent body, before black pig maternal pregnancy, feeding first forge and first green material to the black pig parent body, in a gestation period of the black pig parent body, after successful black pig parent body copulation, feeding second forge and second green material to the black pig parent body, stopping feeding the second forge 3 to 5 days before labor, and feeding earthworm hygromel in each morning, during a lactation period of the black pig parent body, exchanging the second forge to third forge, and the second green material to third green material. Immunity of the black pig parent body can be enhanced, parturition rate of the black pig parent body can be increased and post-labor recovery period of the black pig parent body can be shortened.

The invention relates to the technical field of waste gas treatment, and discloses waste gas comprehensive treatment equipment meeting the composite deodorization process requirement, the waste gas comprehensive treatment equipment comprises two clamping blocks, the two clamping blocks are located at the two ends of a connecting piece respectively, the size of each clamping block is matched with that of a through hole formed in a limiting block, and the tops of the clamping blocks are fixedly connected with the connecting piece; the connecting piece is located between the two clamping blocks, the size of the connecting piece is matched with the distance between the two clamping blocks, a certain number of telescopic rods are fixedly connected to the tops of the clamping blocks, and the size of the telescopic rods is matched with the distance between the clamping blocks and the dust removal piece; according to the waste gas comprehensive treatment equipment meeting the composite deodorization process requirements, an operator starts a motor, at the moment, the motor drives a rotating rod to start to rotate, the size of the rotating rod is matched with that of a through hole formed in a filtering piece, the bottom of the rotating rod is fixedly connected with a clamping block, and at the moment, the rotating rod rotates; and the clamping block is driven to rotate by taking the limiting block as a rotating center.

The invention discloses a composite microbial agent for sewage treatment and a preparation method thereof and belongs to the technical field of environment-friendly agents.A plurality of obtained single colonies is further screened through an activation culture medium containing sulfur ions, and the obtained desulfurization bacterial strain has a good desulfurization function. The compound microbial agent effectively reduces the foul smell of treated sewage, can survive in sewage containing heavy metals, and improves the treatment effect of the prepared compound microbial agent on sewage containing complex components. The porous resin is used for absorbing and coating the composite bacterial liquid, nutrient substances which are not completely fermented and digested in the composite bacterial liquid can be absorbed together with the composite bacterial strains and are well retained in the dry porous resin, and when the composite microbial agent is used, the composite microbial agent firstly absorbs moisture in sewage and expands so that the nutrient substances are dissolved and the compound strains are activated.

The invention discloses a multiple-effect biological solid catalyst used for reclaimed water treatment, consisting of three layers of coatings; the innermost layer is an activated nanometer tourmalinematerial, the middle layer is hydroxylapatite, the outer layer is active carbon powder and the three layers of coating of the solid catalyst form gradient porous channels from nanometer level to micron level from inside to outside. A preparation method thereof comprises the following steps of: controlling humidity and rotating speed, and molding the selected bentonite by adopting a rotary method;injecting the activated tourmaline powders into a rotary table, regulating humidity and rotating speed, then finishing the innermost layer coating after operation and calcining; exchanging the coating materials into hydroxylapatite, regulating and controlling humidity and rotating speed, finishing the middle layer coating after operation and calcining; exchanging the coating materials into activecarbon powder, regulating and controlling humidity and rotating speed, finishing the outer layer coating after operation and drying and obtaining the finished product of the solid catalyst. The multiple-effect biological solid catalyst can improve the traditional biochemical efficiency by 20 to 30 percent and reduce the foul odour (taking hydrogen sulfide as index) by 50 to 60 percent.

The invention discloses beef cattle fodder. The beef cattle fodder is prepared from, by weight, main materials, 22-27 parts of stone powder, 15-23 parts of glucose, 8-12 parts of sodium chloride, 20-25 parts of molasses and 85-105 parts of chlorella liquid, wherein the main materials comprise 530-545 parts of maize, 210-240 parts of pulp-spraying maize peels, 105-130 parts of maize germ meal, 20-26 parts of extruded soybeans and 16-22 parts of glutamic acid dregs, and the amount of active chlorella in the chlorella liquid is larger than or equal to 104 per mL; the beef cattle fodder further comprises a traditional Chinese medicine composition, and the traditional Chinese medicine composition comprises 2.4-3.2 parts of radix astragali, 1.5-2.1 parts of folium perillae, 2.5-2.8 parts of medicated leaven, 1.4-2.2 parts of wrinkled gianthyssop herb and 1.5-1.8 parts of dried orange peel. A preparing method comprises the steps of mixing and smashing all raw preparing materials of the traditional Chinese medicine composition, sieving the materials with a 20-40-mesh screen, conducting steam sterilization to obtain a mixture A, fermenting the mixture A to obtain the traditional Chinese medicine composition, and mixing the traditional Chinese medicine composition with remaining raw materials of the beef cattle fodder at 25-30 DEG C to obtain the beef cattle fodder. The fodder has the advantages that the fodder conversion rate is high, the odor of feces is low, the immunity of beef cattle is improved, and the growth of the beef cattle is promoted.

The invention relates to a cofferdam device for controlling a landfill garbage working plane. The cofferdam device comprises vertical supporting columns and transverse supporting columns. The vertical supporting columns and the transverse supporting columns are welded into a plurality of frames which are in a shape like the Chinese character 'mu', the surfaces of the frames are welded with baffles, the parts, close to the ground, of the baffles are tapping sections with the surfaces provided with water leakage holes, sewage grooves are formed below the tapping sections are respectively, the sewage grooves are grooves made of plastic plates, holes are formed in the grooves and are connected with pipes for draining waste water, the outside portions of the frames are supported by supporting rods made of metal materials, each supporting rod comprises a supporting rod body perpendicular to the ground, the exteriors of the supporting rod bodies perpendicular to the ground are welded with inclined supporting rods inserted into the ground in an inclined mode, and aluminum plastic panels are arranged on the outer sides of the inclined supporting rods to separate the whole cofferdam device and the garbage working plane from the outside. The garbage stack slope can be made to conform to the proportion of 1:1.5, the working exposed area can be obviously reduced, the working plane can be effectively controlled, the optimization of rain and dirt diverting can be achieved by combining a mulching film, and the appearance is clean in the garbage operation process.

The invention discloses a baby black Guinea pig breeding method comprising the following steps: step A, choosing a breeding box of 0.5-1 square meters, disinfecting the breeding box, exposing the breeding box to the sun, controlling the temperature of the breeding box at 18-25 DEG C and the relative humidity at 40-50%, and setting aside for later use; step B, feeding a baby black Guinea pig with a first feed three times a day and a first green fodder once a day in the period from the time of weaning to the age of 20 days of the baby black Guinea pig; and step C, feeding the baby black Guinea pig with a second feed three times a day and a second green fodder once a day and feeding the baby black Guinea pig with 5-10ml nutritive water every morning in the period from the age of 21 days to the age of 40 days, thus obtaining a robust adult black Guinea pig. By adopting the method, the immune power of baby black Guinea pigs can be enhanced, the growth of baby black Guinea pigs can be speeded up, the nutrition of black Guinea pig meat is more comprehensive, and the economic benefit of black Guinea pigs is improved.

The invention discloses pentanediamine octanedioate, a crystal structure thereof and a preparation method thereof. The pentanediamine octanedioate is a salt which is formed in the manner of combiningthe divalent cation of pentanediamine with the divalent anion of octanedioic acid in a mole ratio of 1 to 1 and presents a solid state at normal temperature. The crystal structure of the pentanediamine octanedioate is C13H28N2O4, belongs to a monoclinic system and has a space group C2 / c; a is equal to 27.327(2) angstroms; b is equal to 4.7156(4) angstroms; c is equal to 21.7451(18) angstroms; alpha is equal to 90.00 degrees; beta is equal to 117.673(4) degrees; gamma is equal to 90.00 degrees; the volume V of a crystal cell is equal to 2481.6(4) angstroms; a minimal asymmetric unit number Z inthe crystal cell is equal to 4; and crystalline water is not contained. The preparation method comprises the following steps of crystallizing out the pentanediamine octanedioate from a solution containing dissolved pentanediamine and octanedioic acid, separating out a crystal from the solution, and drying the separated crystal.

The invention is suitable for the technical field of agricultural waste treatment, and provides a poultry manure deodorant and application and a use method thereof. The poultry manure deodorant comprises the following components by weight: 1-5 parts of magnesium chloride, 0.5-3 parts of ferrous sulfate, and 0.5-3 parts of zeolite powder. The poultry manure deodorant provided by the invention can rapidly reduce foul smell and nitrogen loss of poultry manure such as fresh chicken manure, inhibits breeding of fly maggots and the like, keeps physical and chemical properties, such as pH and conductivity, of deodorized manure stable, does not influence subsequent compost fermentation, and can improve the environment of a poultry farm and the quality of subsequent compost products.

The invention discloses a health-caring method during a black pig maternal fertility phase. The method comprises steps of selecting a culturing case with an area of 0.5 to 1 square meters, disinfecting and exposing the culturing case under the sun, controlling the temperature of the culturing case at 18 DEG C to 25 DEG C and relative humidity of 40 t o50% for future use, in the fertile period of the black pig parent body, before black pig maternal pregnancy, feeding first forge and first green material to the black pig parent body, in a gestation period of the black pig parent body, after successful black pig parent body copulation, feeding second forge and second green material to the black pig parent body, stopping feeding the second forge 3 to 5 days before labor, and feeding earthworm hygromel in each morning, during a lactation period of the black pig parent body, exchanging the second forge to third forge, and the second green material to third green material. Immunity of the black pig parent body can be enhanced, parturition rate of the black pig parent body can be increased and post-labor recovery period of the black pig parent body can be shortened.

The invention discloses a method for restoring lake water ecology by using an original ecological plant system. Iris wilsonii is planted in shallow water areas on two sides of the lake and distributedin parallel in two rows; potamogeton crispus is planted in a water area in the middle of the lake pieces, reed, waterweed, water shield grass and potamogeton glomeratus can be respectively planted inthe middle area of a lake water source, and oxygen exposure and bacteria release are carried out in water; the invention relates to the technical field of water ecological restoration. The mangrove forest has the effects of preventing wind, dissipating waves, fixing the bank, protecting the lift and purifying seawater and air, various green plants can improve the transparency in water, increase water dissolved oxygen, reduce the content of nitrogen and phosphorus nutrients and generate a large amount of oxygen in the sewage purification process, foul smell caused by oxygen deficit of the water body can be reduced, the transparency of the water is improved, and growth and propagation of aerobic bacteria are promoted through the method of increasing the oxygen in the water body so that thepurpose of enhancing and accelerating decomposition of organic pollutants in the water is achieved.

The invention discloses pentamethylenediamine suberate, its crystal structure, and its preparation method. The pentamethylenediamine suberate is a salt in a solid state at normal temperature formed by combining pentamethylenediamine divalent cations and suberic acid dianions in a molar ratio of 1:1. Its crystal structure is C 13 h 28 N 2 o 4 , Monoclinic system, C2 / c space group, α=90.00°, β=117.673(4)°, γ=90.00°, the minimum number of asymmetric units in the cell volume Z=4, does not contain crystal water. The preparation method comprises: crystallizing pentamethylenediamine suberate from a solution containing dissolved pentamethylenediamine and suberic acid, separating the crystals from the solution, and drying the separated crystals.