207results about How to "Reduce pollution sources" patented technology

The invention discloses a productive technology of vanlillin by a glyoxylic acid method. The productive technology comprises a synthesis process, a fractionation process and a purification process, wherein the synthesis process comprises condensation treatment, oxidation treatment and decarboxylation treatment of methyl catechol and glyoxylic acid. The productive technology particularly comprisesthe following steps: respectively converting the methyl catechol and the glyoxylic acid into guaiacol sodium and sodium glyoxylate in a sodium hydroxide system; carrying out condensation treatment onthe guaiacol sodium and the sodium glyoxylate; after recovering the unreacted methyl catechol in a condensation liquid, carrying out oxidation treatment, namely carrying out catalytic oxidation on anethanol group in 4-hydroxy-3-methoxybenzene sodium glycolate by using copper oxide in the sodium hydroxide system to form a ketone group, thereby generating a corresponding ketonic acid compound; after separating red copper oxide particles from an oxidation liquid, carrying out decarboxylation treatment, namely using sulfuric acid to acidize the oxidation liquid, and simultaneously converting an acid group in the ketonic acid compound into carbon dioxide so as to generate 4-hydroxy-3- methoxybenzaldehyde; and carrying out the fractionation process and the purification process to obtain the vanlillin.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The invention discloses a buried efficient treater of initial rainwater. The buried efficient treater integrates coagulating sedimentation, air flotation, quick filtration and intelligent detection and features small floor area, high treatment efficiency and high load resistance; treatment level of the initial rainwater can be automatically adjusted according to water conditions, the initial rainwater is quickly subjected to coagulating sedimentation, air flotation, water reoxygenation, filtration and the like, energy is saved, ideal cleaning effect is achieved, remote supervision is available, mangers are allowed to monitor the flow of a drainage network and the water conditions anytime and anywhere and monitor the treatment state of rain sewage in the treater, remote intelligent control is available, management of a rain sewage network is greatly facilitated, and the ability of people to control the rain sewage is improved.

The invention relates to an environment-friendly straw fermenting agent. The environment-friendly straw fermenting agent is prepared from the following seven raw materials in percentage by weight: 25 percent of bacillus subtilis, 15 percent of trichoderma viride, 18 percent of saccharomyces cerevisiae, 12 percent of aspergillus niger, 10 percent of streptomyces hygroscopicus, 10 percent of trichoderma koningii and 10 percent of arthrobacter. The environment-friendly straw fermenting agent can accelerate the decomposition speed of cellulose and can completely decompose crop straws within aboutten days to return to the field, so that the straws are corroded, blackened and composted. The environment-friendly straw fermenting agent can accelerate release of nutrient elements in the straws, provides more nutrients for growth of the crops at the later stage, maintains and improves soil fertility, improves soil organic matter, improves physicochemical property of the soil, increases the yield of the crops by about 10 percent, and can be widely applied to returning straws of the crops such as rice, wheat, corn and the like to the field.

The invention provides a heavy metal sludge soil restorer, a preparation method and an application thereof in sludge elimination. The adopted technical scheme comprises: municipal sludge is subjected to pretreatment, thermophiles are used for decomposing organic substances, and a heavy metal is added to treat microorganisms. After the sludge restorer is used in a test, the effective removal rate of various pollutants in soil reaches 95% or above, in line with national standards. At the same time, sulfate can be used to repair heavy metal land in situ, and is also a very good organic fertilizer, and is beneficial to reduction in the use of chemical reagents and chemical fertilizers in agricultural production, thereby eliminating pollution sources and secondary pollution from the source.

The exploited renovating technology for irreversible sulfuration of lead-acid accumulator applies nano synthesis technology and leading theory, and comprises steps as following: detecting cell state, determining ingredient and proportion for recovery liquid, knocking the lead sulfate crystal by a match-cell renovation device, opening ion channel to full discharge and activate original active material.

The invention discloses a method for degumming ambary by low-temperature plasma and a biological enzyme. The method comprises the following steps: firstly, pretreating crude ambary by the low-temperature plasma, i.e., breaking the glucoside bonds in an ambary fiber material by virtue of a large quantity of active particles in the plasma to generate macromolecule free radicals, unsaturated chains and cross-linking layers, thereby enabling the structure of a colloid complex to become loose and parts of colloid molecules to be decomposed into small molecules to reduce the adhesive performance of fiber surface colloid, thus providing good conditions for biological enzyme degumming; secondly, degumming the ambary by high-efficiency biological enzyme, wherein the colloid such as pectin and hemicelluloses can be completely decomposed by means of treating the crude ambary by virtue of the synergistic effect of different-component enzyme systems, so that the aim that the cellulose is not damaged even if the colloid is degraded can be achieved. The method has the characteristics of high degumming efficiency, good degummed ambary product quality and no chemicals, and is energy-saving and environmental friendly.

The invention provides a method for preparing a culture medium of beech mushrooms and needle mushrooms by utilizing a waste material of an agaric culture medium. The method comprises the following steps: (1) collecting and materializing treatment for the waste material of the agaric culture medium: selecting a qualified fungus bag for debagging, crushing under tiny wet state, adding a modifier while crushing to adjust a pH value to be 6.0-7.0, and standing in sunlight for exposing 2-8 days or drying for 6-12 hours at 65-75 DEG C until the water content is 10%-13% for later use, and (2) nutrient balancing preparing for the culture medium: taking 65-75% of processed agaric waste materials, 10-25% of bran or rice bran, 2% of bean flour, 5-10% of corn flour, 0.5% of white sugar, 1-2% of calcium superphosphate or potassium phosphate, 1-2% of gypsum and 0.5-1% of magnesium sulfate, and then adding water until the water content is 55%-65%, and uniformly stirring after an absorbing nutritional solution of 0.3-2.5% nutritional type biopolymer is saturated. According to the method, the cost is low, the yield is high, the waste is efficiently reused and the environmental pollution is reduced.

The invention relates to multistage equipment for increasing dissolved oxygen in water. The equipment comprises an electric water wheel, an agglomerated water refining device, a wind oxygen increasing device and a steering device, wherein the agglomerated water refining device receives agglomerated water generated when the electric water wheel beats the water surface and refines the agglomerated water through a rotating mechanism to increase the contact area of water drops and air and bring more oxygen to the water; the agglomerated water refining device and the wind oxygen increasing device are combined with a water drawing mechanism respectively; the water drawing mechanisms directly draw the water to the sky and slowly drip the water to increase the content of the oxygen in the water and save electricity; the steering device is used for adjusting the direction of a floating platform of the electric water wheel to make the direction of the floating platform of the electric water wheel consistent with the wind direction; therefore, the aim of effectively increasing the dissolved oxygen in the water and saving the electricity is fulfilled.

The invention discloses an industrial smoke exhaust gas recovery purifier and an application method thereof. A scheme is characterized in that: tilting grid plates are arranged in a dedusting chamber; each grid plate is provided with a grid hole; separation plates divide a purification chamber into relatively independent compartments; a main shaft penetrating through the purification chamber is fixed with rotary blades and bearings in an interval mode; one rotary blade is arranged in one compartment; and one bearing is fixed corresponding to one separation plate. By utilizing mechanical and chemical reaction principles in the invention, the reaction area and the reaction speed are increased, so the industrial smoke exhaust gas is gradually adsorbed and purified in the compartments of the dedusting chamber and the purification chamber, and the recovery rate can reach above 95%. The smoke exhaust gas is adsorbed before being discharged to airspace, so the air pollution source is greatlyreduced. An absorbent used in the invention has the advantages of low cost and high adsorption efficiency, so the purifier of the invention, which has an important meaning to the industrial smoke exhaust gas pollution reduction and the air environment purification, is an ideal industrial smoke exhaust gas adsorption purifier.

The invention relates to a drying system utilizing residual heat in exhaust gas from kiln tail of a rotary kiln. The drying system comprises a vertical air-drying heat exchanger and auxiliary equipments including an exhaust gas inlet pipe, an exhaust gas outlet pipe, a feeding lifter, a feeding belt conveyer, a cyclone separator, a centrifugal blower, a discharge belt conveyer, a warehousing lifter, a dry slag warehouse, an air inlet port for vertical air-drying heat exchanger, a dry slag outlet port, a recycled material belt conveyer, a recycled material outlet port, a material inlet pipe for vertical air-drying heat exchanger, and an air outlet port for vertical air-drying heat exchanger. The system can effectively utilize the residual heat in the exhaust gas from the kiln tail of a rotary kiln to dry the raw material slag. The circulating load of the materials to be dried is 2-3 times of the yield of finished product. The inventive system has simple processes, simple structure of equipments, high heat exchange efficiency and high economic performance. The water content in the dried slag is not more than 1 percent. The inventive system overcomes the shortcomings of the existing slag drying using rotary type drying machine including high coal consumption and power consumption and environmental pollution due to large amount of dust emission. The invention reduces greenhouse gas emission and environmental pollution sources, improves economic benefit of enterprise, and brings distinct social benefit in the energy-saving and emission reduction project.

The invention discloses a combination of gauze mask and preparing method, which consists of gauze mask bulk and a couple of supra-aural, wherein the supra-aural is composed of elastic film, which is connected between two ends of mask bulk. The invention improves transmitting problem in the traditional raw material machine, which locates precisely.

The invention discloses an intermittent-type multifunctional stirring station and belongs to the technical field of municipal engineering equipment. The intermittent-type multifunctional stirring station comprises a stirring and mixing system, a powder feeding device and an aggregate feeding device with a drying function. The stirring and mixing system comprises a vibrating screen, a sand-powder separating device, a sand temporary-storage bin, stone temporary-storage bins, aggregate measuring hoppers, powder measuring hoppers, an asphalt measuring hopper, a water measuring hopper, an admixturemeasuring hopper and a blending main machine. A stirring shaft of the blending main machine is provided with a shaft end water-cooling device. The powder feeding device is connected with the powder measuring hoppers. The aggregate feeding device is connected with the vibrating screen. The intermittent-type multifunctional stirring station integrates multiple functions, and compared with combination of existing equipment, the occupied land is saved by 50% or above, the distribution power is saved by 50% or above, and the equipment input is reduced by 40% or above; equipment mounting and transporting are reduced, and the construction cost of ancillary facilities is reduced by 50% or above; and meanwhile, environmental pollution sources can further be reduced, and the input of environment-friendly facilities is reduced by 50% or above under the situation of meeting the same environment-friendly requirement.

The invention relates to a new process for recycling rice milk. The process comprises the steps of (1) discharging rice milk obtained by socking rice into a water storage bucket, and introducing the rice milk into a sterilizing and cooling bucket to perform sterilization and cooling for later use; (2) steaming rice by using the soaked rice, sprinkling cooked rice and cooling by using the rice milk for later use in the step (1), collecting water used for sprinkling the cooked rice and cooling into the water storage bucket, sterilizing, cooling and recycling; (3) after sprinkling the cooked rice and cooling, performing turning-over and mixing, adding clean water and the water in the sterilizing and cooling bucket, and adding Chinese yeast and wheat koji required for making wine; (4) enabling the brewing raw materials subjected to turning-over and water adding to be subjected to saccharification fermentation, post-fermentation, squeezing and wine sterilizing so as to prepare a wine product. According to the new process disclosed by the invention, the flow of the conventional brewing production process is changed, the labor intensity of workers is reduced, the production environment is changed, the largest pollution source in yellow rice wine production is reduced, water resources are saved, the utilization rate of production resources is increased, and the discharge amount of brewing wastewater is reduced.