101results about How to "Promote redox process" patented technology

The invention relates to a water-soluble plant growth nutrient solution and a preparation method. In the plant growth nutrient solution, the content of small molecular weight water-soluble chitosan accounts for 8-120g / L, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 60g / L, the sum of the content of medium trace elements accounts for 3-30g / L, the content of organic matter accounts for 30-200g / L, the content of plant growth regulator accounts for 0.01-5g / L, and the content of spread penetrating agents is larger than or equal to 0.2g / L; the small molecular weight water-soluble chitosan is obtained through the preparation steps that chitosan is firstly subjected to alkalization of strong base, then subjected to carboxyl chemical modification, degraded through strong oxidant after carboxyl chemical modification and finally neutralized through acid. The water-soluble plant growth nutrient solution integrates the effects of nutritional complement, growth promotion, antibiosis, virus resistance, stress tolerance and the like and has multiple functions and effects of improving soil, preventing hardening, increasing ground temperature, resisting to disease, being tolerant to stress, resisting to continuous cropping, supplementing nutrition rapidly, raising the yield and improving fruit quality and the like.

The invention belongs to the technical field of energy materials, and specifically relates to a modified diaphragm for a lithium-sulfur battery, a preparation method of the modified diaphragm and the lithium-sulfur battery with the diaphragm; the diaphragm adopts a diaphragm body of a commercial battery as a skeleton, and a decorative coating is coated on one side of the diaphragm body; and the decorative coating consists of nanometer inorganic particles containing molybdenum element, a conductive agent and a binder. Through the diaphragm for the commercial battery and the nanometer inorganic particles containing molybdenum element as raw material and a proportional relation among the raw materials, the composite diaphragm for the lithium-sulfur battery is formed through a simple technology, the technology is simple and controllable, a complex and energy-consuming sulfur-filling process is not needed, the raw materials are wide in sources, the cost is low, and the technology is beneficial for large-scale implementation. The lithium-sulfur assembled in the invention is high in capacity and good in cycle performance, and the preparation technology is simple and controllable, economical and environmentally-friendly, and is applicable for large-scale production.

The invention provides an electrically enhanced anaerobic ammonia oxidation reaction method belonging to the technical field of water treatment. The device comprises a cylindrical anaerobic ammonia oxidation reactor, two electrodes are arranged in the anaerobic ammonia oxidation reactor, a tubular iron electrode is used as an anode, a cylindrical graphite electrode is used as a cathode, and the electrodes are connected with an external DC stabilizing power supply through wires. The lengths of the electrodes are 30-40% of the effective height of the reactor, and the lowest inserting positions of the electrodes are 1 / 2 parts of the effective height of the reactor. Under the action of externally applied voltage (optimally, 0.6V voltage and less than 5mA current), the dissolution of iron in the anode is effectively controlled, and the growth of anaerobic ammonia oxidation bacteria is promoted. The results of experiment tests show that the nitrogen removal efficiency of the anaerobic ammonia oxidation bacteria is increased by electrochemical action and coupling in a biologic treatment process, the removal of nitrate nitrogen byproducts in the ANAMMOX process is enhanced, and the device has higher total nitrogen removal efficiency than reference reactors. The starting time of the ANAMMOX technology is shortened, and the total nitrogen removal capability of the ANAMMOX process is effectively improved.

The invention discloses a repairing method of water body polluting bottom mud. The water body polluting bottom mud is polluting bottom mud in water bodies of city watercourses and landscape lakes severe in eutrophication. The repairing method includes the following steps of firstly, evenly putting a bottom mud activity covering material with granularity of 1-4 mm in a water body according to the type of main pollutant in the water body and the pollution loads, wherein the covering thickness is 2-6 cm; secondly, planting submerged plants in the water body when the water quality of the water body is remarkably improved and more than one third of the water body in the water depth is improved to be transparent; thirdly, recovering the submerged plants in winter. By means of the method, emission of nitrogen and phosphorus in bottom mud can be effectively reduced, eutrophication of the water body is controlled, the technology implementation process is simple, and cost is low.

The invention provides a method for leaching manganese sulfate from low grade pyrolusite. The method comprises the steps of crushing low grade pyrolusite and pyrite, placing crushed pyrolusite and pyrite in a leaching tank and mixing crushed pyrolusite and pyrite with sulfuric acid to prepare ore slurry. According to the invention, the mass percentage of manganese in pyrolusite is 9% to 21%, the mass ratio of pyrolusite to pyrite is 5-3:1, the molar concentration of sulfuric acid is 1 to 1.2 mol / L, and the mass ratio of sulfuric acid to pyrolusite and pyrite is 6-8:1; electrocatalytic reinforcement is carried out on the ore slurry so as to accelerate a reduction reaction. The method for leaching manganese sulfate from poor pyrolusite provided in the invention has the advantages of low cost, easy operation, short time, a high leaching rate of manganese, etc.

The invention belongs to the technical field of hydrogen peroxide, and especially relates to a hydrogen peroxide working solution and its application in the preparation of hydrogen peroxide. The hydrogen peroxide working solution comprises 2-ethylanthraquinone having a mass concentration of 120-200g / L and an organic solvent, and the organic solvent comprises, by volume, 70-80% of a C9-C10 aromatic hydrocarbon, 14-20% of trioctyl phosphate, 4-10% of 2-methylcyclohexyl acetate and 0.4-0.9% of tertiary amine When the hydrogen peroxide working solution is used in the preparation of hydrogen peroxide, the hydrogen peroxide working solution can greatly improve the hydrogenation efficiency and the oxidation efficiency of 2-ethylanthraquinone, and has the advantages of low production cost, no peculiar smell and product yield improvement.

A voltaic cell comprising an iron in alkali anode where metal iron is oxidized to iron II hydroxide and a ferricyanide in alkali cathode where ferricyanide is reduced to ferrocyanide, and uses thereof.

The invention provides a device for treating waste water containing salt through coupling of electrodes and anaerobic organisms, which comprises a cylindrical anaerobic reactor, the lower part of the anaerobic reactor is provided with a water distributor, the middle is provided with an anode and a cathode and connected with an external power supply through a wire, the upper part is provided with a three-phase separator, and the external is provided with a thermal insulating layer. The anode and the cathode are coaxially inserted into the 1 / 4 part of the effective height of the reactor, the lengths of the anode and the cathode are 50% of the effective height of the whole reactor, and externally applied voltage is optimally 1.2V. In the technology, iron-carbon electrodes are arranged in the anaerobic reactor for treating waste water containing salt with a high electricity conducting rate, the activity of anaerobic microorganisms is enhanced under the coupling action of an electric field and ferrous ion release, and the dwelling time of sludge in the reactor is prolonged, so that the metabolism speed of the microorganisms is raised, and the biomass is increased. The device is favorable to sieving efficient halophilic microorganisms, is used for treating high concentration of organic waste water containing salt, and has remarkable innovation, good effect for treating the waste water and good application prospect.

The invention provides a preparation method and application of a nitrogen-doped carbon nanotube loaded phosphorus-doped cobaltosic oxide composite material, and belongs to the technical field of composite materials. The method comprises the following steps: firstly, preparing a nitrogen-doped carbon nanotube, then adding a cobalt source to obtain a Co / NCNT material, oxidizing in an oxygen atmosphere to obtain the nitrogen-doped carbon nanotube loaded cobaltosic oxide composite material, and phosphatizing in an argon atmosphere to obtain the nitrogen-doped carbon nanotube loaded phosphorus-doped cobaltosic oxide composite material. According to the scheme, on one hand, a good conductive channel is provided, on the other hand, the phosphorus-doped cobaltosic oxide not only has relatively strong adsorbability to lithium polysulfide, but also can be used as a catalyst to effectively promote the redox process of the lithium-sulfur battery, so that the adsorption-diffusion-conversion processof the lithium polysulfide is accelerated to be carried out orderly, and the overall performance of the battery is improved.

The invention discloses a double-membrane slow-release fertilizer containing a biostimulant. The double-membrane slow-release fertilizer is prepared from the following raw materials in parts by weight: 50-60 parts of a double-coated fertilizer, 10-20 parts of diammonium hydrogen phosphate and 14-18 parts of a potash fertilizer; and the double-coated fertilizer is prepared from the following components in parts by weight: 85-95 parts of a fertilizer core, 3-7 parts of a coating agent and 4-6 parts of a second coating agent. The invention further discloses a preparation method of the double-membrane slow-release fertilizer containing the biostimulant. The double-membrane slow-release fertilizer containing the biostimulant has double effects of a fertilizer and a pesticide and is complete in nutrient and balanced in release, fruit tree growth can be promoted, metabolism of fruit trees and absorption and utilization of various nutrients are promoted, absorption and utilization of the fruit trees on the nutrients and moisture of soil are improved, the utilization rate of a fertilizer is significantly improved, diseases and pests of the fruit trees can be effectively prevented and controlled, the oxidation-reduction process in fruit tree bodies is accelerated, and the quality of the fruits is significantly improved, thereby achieving the target of increasing both production and income.

The invention discloses a water vapor generation method and device with control of flow quantity; water vapor is generated by carrying out a reaction of hydrogen with metal oxide particles under a condition of high temperature, wherein the oxidizability of metal cations in the metal oxide particles is stronger than that of hydrogen ions. Because the reaction rate of the hydrogen with the metal oxide particles under the condition of high temperature is quite fast and the reaction belongs to an irreversible reaction, the hydrogen can be completely oxidized, and high-pure water vapor with the concentration of close to 100% can be continuously produced; the flow quantity of the water vapor is completely controlled by the flow quantity of the hydrogen. Because the control precision of the flow quantity of the hydrogen is quite high, compared with a traditional generation method of generating water vapor from liquid water, the method has the control precision of the flow quantity of the water vapor greatly improved; in addition, the molar ratio of the reaction hydrogen to the generated water vapor is 1:1, the gas volume flow quantity is not changed in the reaction process, and the stability of the pressure of the water vapor can be ensured. Therefore, the method and the device have the advantages of stable water vapor output pressure and flow quantity, and high flow quantity control precision.

The invention discloses a method for accelerating aging of a litchi distilled spirit by virtue of synergistic effects of ozone and ultrasonic waves. The method comprises the following step: sequentially performing five steps, namely primary ultrasonic treatment, primary ozone treatment, secondary ultrasonic treatment, secondary ozone treatment and ultra-filtration on a litchi distilled spirit which is obtained by fermenting whole litchi juice and then distilling to obtain the litchi distilled spirit. The litchi distilled spirit treated by using the method disclosed by the invention has typical litchi aroma, and is soft and mellow in taste; and the content of aroma substances such as ethyl acetate, ethyl propionate, ethyl lactate, ethyl laurate, phenylethanol and the like can be increased by more than 50% compared with that of the litchi distilled spirit before treatment so as to ensure that the content of fusel oil components in the litchi distilled spirit can be reduced by more than 40%, indexes of each component are close to that of a litchi distilled spirit subjected to five years of natural aging, and the ozone treatment can also play a certain turbidity removal effect on a wine liquid.

The invention belongs to the technical field of lithium-sulfur batteries, in particular to a high-performance lithium-sulfur battery cathode material and a preparation method thereof. The material isporous flower-shaped CoP / C @ S composite. Using cobalt chloride dimethanol as precursor, Porous flower-like CoP / C @ S composites were synthesized by low temperature phosphating process, the porous structure of the composite can effectively coat sulfur, The porosity and nanometer size of CoP / C @ S composites endow them with superionic conductivity and larger electrode / electrolyte interface, which improves the conductivity and promotes the transport of electrons and ions. The results show that CoP / C @ S composites possess the characteristics of high porosity and nanometer size, which can inhibitthe dissolution of polysulfides and improve the utilization of active substances.

The invention discloses a fertilizer for grapes. The fertilizer for grapes is characterized in that a formula of the fertilizer comprises the following ingredients (by weight): 130 parts of urea, 60 parts of diammonium phosphate, 100 parts of calcium superphosphate, 10 parts of a calcium magnesium phosphate fertilizer, 180 parts of potassium sulphate, 15 parts of borax, 5 parts of copper amino acid chelate, 5 parts of iron amino acid chelate, 5 parts of zinc amino acid chelate, 80-120 parts of grass carbon, 210-280 parts of oil cake, 55-100 parts of humic acid, 20-30 parts of amino acid, 32-48 parts of a biological synergist and 200-300 parts of a bio-organic fertilizer. As the fertilizer for grapes is composed of elements (nitrogen, phosphor, potassium), organic matter, microbes, trace elements, amino acid and a conditioner, soil permeability can be effectively enhanced, soil hardening and acidification can be solved, basic fertility of cultivated lands can be raised, internal nutrients of cultivated lands replace external chemical fertilizer nutrient input, land utilization and land cultivation are combined, and production and income increase of grapes is promoted.

The invention belongs to the technical field of animal feed processing and particularly relates to total mixed ration fodder for mutton sheep at the fattening stage. According to the total mixed ration fodder, alfalfa, corn, distillers' grains, soybean meal, malt sprout, corn fiber, cottonseed meal and molasses are mixed and smashed and then are sieved by a 40-mesh sieve, and mixed powder A is obtained; stone powder, calcium hydrophosphate, bentonite, baking soda, sodium chloride, sodium sulfate, montmorillonite, ammonium chloride, monensin, 0.5% of compound premix feed and the mixed powder A are put in a mixer to be mixed and conditioned, the conditioned material is granulated, granular fodder is obtained, packaged and graded, and a finished product is obtained. By comparison with a conventional feeding and fattening method, the marketing time of fattening lambs fed on the prepared fodder is advanced by 15-25 days, the mutton sheep averagely grow 300 g or more every day and the daily average feed intake is 2.5 jin in the process when the fattening lambs are fattened from 17.5 kg to 65 kg or higher, so that the cost of a breeding farmer is substantially reduced, and the benefits are remarkable.

The invention belongs to the technical field of composite fertilizer production, and relates to weathered coal-containing potassium sulfate composite fertilizer treated by acidulation and a manufacturing method thereof. Traditional ammonified granular potassium sulfate composite fertilizer is added with powdery weathered coal and then is subjected to activation treatment by ammonia and an acid toform the weathered coal-containing potassium sulfate composite fertilizer treated by acidulation. The weathered coal-containing potassium sulfate composite fertilizer treated by acidulation has the advantages of reasonable compatibility, balanced nutrition, and good effects of improving soil quality, stimulating plant root development and improving a fertilizer utilization rate. The weathered coal-containing potassium sulfate composite fertilizer treated by acidulation is novel sulfur-base composite fertilizer rich in organic matters and multiple nutrient elements.

The invention relates to slow-release magnetized composite fertilizer for planting rapeseed and its preparation method. The slow-release magnetized compound fertilizer for planting rape includes the following raw materials in parts by weight: 24-28 parts of urea, 18-22 parts of potassium dihydrogen phosphate, 3 to 5 parts of calcium powder, 10 to 16 parts of potassium chloride, 2 to 2.5 parts of humic fertilizer, 0.2 to 0.5 part of selenium-rich fertilizer, 0.5 to 1 part of magnesium sulfate heptahydrate, 1 to 2 parts of starch ether, 4 to 8 parts of fertilizer additives, and 34 to 40 parts of magnetic carrier. The slow-release magnetized composite fertilizer for planting rapeseed is characterized in that the iron mineralized tailing sand compound fertilizer is magnetized, the soil environment is improved, the fertilization period of the fertilizer is enhanced, the nutrition absorption of the crop is enhanced, the lodging resistance and disease resistance of the rape are enhanced, yield and earnings are increased, and the environment is protected.

The invention belongs to the technical field of compound fertilizer production, and relates to a seaweed composition containing specific fertilizer for fruit trees and a preparation method thereof. The specific fertilizer is prepared by reasonably proportioning weathered coal, sulfuric acid, gasified ammonia, monoammonium phosphate, urea, potassium chloride, seaweed extract, zinc sulfate and borax, and granulating the obtained mixture by using a special process. The specific fertilizer is rich in organic matters and various trace elements, and has the characteristics of high utilization rate of fertilizer efficiency, long duration of fertilizer efficiency, and capability of facilitating the improvement of soil.

The invention provides a fertilizer synergist containing amino acid and preparation method of the fertilizer synergist. The synergist contains 10-12% of humic acid, 20-35% of klinitamin, 0.02-0.04% of zinc, and 0.01-0.02% of boron; the ammonia volatilization inhibition rate is over 10%, and the phosphorus fixed rate is declined by at least 20%. The fertilizer synergist containing amino acid is featured by promoting growth of crops root, improving the root activity, significantly increasing the crops output, improving the fertilizer utilization rate, protecting environment, supplementing soil trace elements and others; the preparation method is simple in process, wide in raw material source, easy to operate and low in cost, and others.

The invention discloses a nitrogen-doped hollow carbon sphere / nickel sulfide / graphene ternary active multilayer / multi-structure composite material, which is a multilayer multi-element hollow structurematerial formed by anchoring surface evenly distributed porous loose and porous nickel sulfide nanosheets on a hollow nitrogen-doped carbon sphere and packaging reduced graphene oxide on the outmostlayer. When the nitrogen-doped hollow carbon sphere / nickel sulfide / graphene ternary active multilayer / multi-structure composite material is used as a counter electrode of a dye-sensitized solar cell,the dye-sensitized solar cell exhibits excellent photoelectric conversion performance that: under the same conditions, the photoelectric conversion efficiency of the dye-sensitized solar cell with theassembled NHCS / NiS / RGO counter electrode material is up to 9 .32%, which is higher than 8.78% of NHCS / NiS, 5.05% of NHCS and 8.06% of Pt. Moreover, the nitrogen-doped hollow carbon sphere / nickel sulfide / graphene ternary active multilayer / multi-structure composite material further has excellent catalytic performance, and can effectively promote the redox reaction of iodide ion pairs at the interface of an electrolyte / composite material. In addition, the nitrogen-doped hollow carbon sphere / nickel sulfide / graphene ternary active multilayer / multi-structure composite material is prepared by adopting a solvothermal method, the preparation process is simple, the cost is low and no pollution is generated to the environment.

The invention relates to a knitted jean production process. The process comprises the following steps of: 1) grouping raw cotton yarns (single yarns) into 500 to 16,000 pieces to form a flaky yarn; 2) repeatedly dyeing and press-drying the flaky yarn obtained in the step 1) for multiple times; 3) winding the flaky yarn into an axial yarn by using a multi-head coiling machine; and 4) winding the axial yarn into a finished yarn, wherein the finished yarn is knitted cheese or a colored weft yarn. In the design, the multi-head winding machine is used for winding the yarn, leasing and mounting processes are not needed, the production efficiency is extremely high; the yarns are arranged to be flaky during production, and a yarn fabric has a uniform color and higher product grade; meanwhile, the process has low requirement on a dye which can be recycled and the environment is not polluted by the processing method. The flaky dyed multi-head coiling machine is used in the production of a knitted fabric or tatted jean, so high production efficiency is guaranteed and the energy consumption is saved.

The invention provides a nutrient solution suitable for deep-flow hydroponic lettuce and a hydroponic method. The pH value of the nutrient solution suitable for deep-flow hydroponic lettuce is 4.4-6.5, and the nutrient solution comprises a liquid A and a liquid B. In the formula, a plurality of nitrogen forms including nitrate nitrogen and ammonium nitrogen are contained, and can be absorbed and utilized by lettuce root systems. In addition, the utilization rate of contained EDDHA chelated iron is high relative to EDTA-Fe, so that absorption of iron elements by capillary roots, which exists inthe nutrient solution for a long time, of the hydroponic leaf vegetables can be facilitated, and meanwhile, iron deficiency can be effectively prevented. According to the nutrient solution disclosedby the invention, absorption by the capillary roots can be promoted, vitality of the roots can be increased, the growth period of the lettuce can be shortened, and the content of soluble solids in leaves of the hydroponic lettuce is increased by at least 7.3%.

The invention discloses a preparation method of a composite catalyst applied to photo-thermal-coupled methanol steam reforming for hydrogen production. The composite catalyst can simultaneously absorbheat radiation generated by hearth heating and ultraviolet-visible light irradiated by an external xenon lamp in a photo-thermal reactor. According to the invention, on one hand, heat radiation is utilized to reach a temperature required by thermal catalysis, and desired methanol and water are absorbed; and on the other hand, high-energy photons are used for exciting separation of photo-induced electron hole pairs, so oxidation reduction of reactants is accelerated, more intermediate products are generated, methanol and water are catalyzed to undergo a reforming reaction under the combined action of heat radiation and light absorption, and photo-thermal-coupled methanol steam reforming for hydrogen production is achieved. Besides, the prepared photo-thermal synergistic catalyst has a porous structure and can relieve the problem of high-temperature sintering in long-term reaction, so the stability of a reforming hydrogen production process is improved. The photo-thermal-coupled methanol steam reforming for hydrogen production realizes the synergistic utilization of heat radiation and sunlight, the performance of photo-thermal-coupled methanol steam reforming for hydrogen productionis better than the performance of a hydrogen production reaction under pure heat radiation, and the requirement for long-term efficient operation can be met.

The invention belongs to the technical field of compound fertilizer production, and relates to an ammoniation method to process weathered coal to produce potassium sulfate type compound fertilizer and a manufacturing method thereof. It is formed by adding powdered weathered coal to the traditional ammoniated granulation potassium sulfate compound fertilizer production and activated by ammonia and acid. The product of the invention has reasonable compatibility and balanced nutrients, and has the functions of improving soil, stimulating the development of plant roots and improving fertilizer utilization rate, and is a new type of sulfur-based compound fertilizer rich in organic matter and various nutrient elements.

The invention discloses a method for synthesizing metal-phase vanadium / molybdenum disulfide / carbon cloth as a negative electrode material of a sodium-ion battery by a simple hydrothermal method. According to the invention, the carbon cloth is used as a substrate for in-situ growth of the nanosheet-shaped metal phase vanadium / molybdenum disulfide, and the nanosheet-shaped metal phase vanadium / molybdenum disulfide can be directly used as a negative electrode material of a sodium-ion battery without adding a conductive agent and a binder, so that the conductivity and utilization rate of the material are improved, and an ion intercalation barrier layer is reduced. Meanwhile, intercalation of vanadium can further enlarge the interlayer spacing of the material, and the charge-discharge specificcapacity and the cycling stability of the electrode material are remarkably improved. The sodium ion battery negative electrode material disclosed by the invention is simple in experimental operationand low in production cost, and has a wide industrial application prospect.

The invention discloses an amino acid water-soluble fertilizer with mite-killing and efficiency-improving effects. The fertilizer comprises amino acid, microelements, an organosilicon additive, and water. The invention further provides a preparation method of the amino acid water-soluble fertilizer, and an application method of the amino acid water-soluble fertilizer. The amino acid water-solublefertilizer contains comprehensive nutrients, can be easily absorbed by crops at different stages, and can effectively create favorable nutritional conditions for the crop growth; harmful mites on thecrops are prevented and controlled through a physical method, so that the usage amounts of pesticides and chemical fertilizers can be reduced, the ecological environment can be effectively improved, and soil and water sources can be protected; and the preparation method is simple, raw materials can be acquired from a wide range of sources, the cost is low, no pollution is caused, the product fertilizer efficiency is high, and scale production is facilitated, so that good application prospects are achieved.

According to the invention, a method for the prevention of microbial growth in process waters is provided, wherein first a peracid compound, and thereafter a halogenated dialkyl hydantoin are dosed into said process water. Further, according to the invention, a combination for the prevention of microbial growth is provided, said combination comprising compounds to be dosed separately, said compounds being a peracid compound to be dosed first, and a halogenated dialkyl hydantoin to be dosed after the peracid compound, the weight ratio of the peracid compound to the halogenated dialkyl hydantoin being at least 2:1, wherein the amount of the peracid compound is calculated as active agent, while the amount of halogenated dialkyl hydantoin is calculated as active chlorine.

The invention discloses a high-efficiency compound organic fertilizer based on an amino acid substrate. The compound organic fertilizer is prepared from the following raw materials, in parts by weight: 10-15 parts of a compound amino acid aqueous solution, 5-10 parts of livestock and poultry feces, 3-6 parts of straw, 2-5 parts of turfy soil, 1-3 parts of fungus residues, 1-2 parts of calcium superphosphate, 3-7 parts of multidimensional composite mold, 5-10 parts of humic acid, 3-5 parts of bentonite, and 1-2 parts of a growth auxiliary agent. The organic fertilizer prepared in the inventioncontains a plurality of enzymes, a plurality of plant essential nutrient substances, amino acids, crude proteins, nucleic acids, vitamins, organic acids, the humic acid, glucose, the growth auxiliaryagent and antibacterial substances, can promote growth of plants, increase mass of grains and improve quality of fruits, and has good disease resistance; and after sterilization is performed by a sterilization stirring machine, bacteria and viruses in fertilizer raw materials are killed, so that microorganisms in the fertilizer have longer survival time, and the produced bio-fertilizer has betterquality.