11results about How to "Adjust pH" patented technology

This utility model discloses an environmentally friendly wastewater filtration device, relating to the field of wastewater treatment technology. It includes a fixed base plate and a treatment assembly. The fixed base plate is an integrated structure, with a supporting column installed on the left end of its upper surface. The treatment assembly is located on top of the supporting column and includes a sludge sedimentation tank, a supporting top plate, a servo motor, a connecting shaft, a stirring rod, a connecting frame, a scraper, a sludge discharge pipe, and a sludge pump. The sludge sedimentation tank is located on top of the supporting column, with the upper surface of the supporting column tightly connected to the lower surface of the sludge sedimentation tank. The supporting top plate is installed on the upper inner side of the sludge sedimentation tank, and a servo motor is installed on the upper surface of the supporting top plate. This environmentally friendly wastewater filtration device, through the treatment assembly, facilitates sludge pretreatment, preventing sludge from clogging the filtration mechanism. The filtration assembly enables the device to fully filter wastewater and facilitates cleaning of the filtration mechanism.

The invention relates to a kitchen garbage treatment method which comprises the following steps: S1, collecting general kitchen garbage, and performing three-phase separation after pretreatment to obtain slurry residue a, sewage and waste oil; s2, soybean curb residue waste and bread waste are collected, after pretreatment, wheat skin worm larvae are added and cultured, then worm and material separation is conducted, and pulp residue b, wheat skin worm pupae and wheat skin worm adults are obtained; s3, blending the slurry residue a, the slurry residue b and modified diatomite, adding hermetia illucens larvae and dry animal waste, culturing, and then separating the larvae from the materials to obtain a fertilizer, hermetia illucens pupae and hermetia illucens adults; s4, blending the wheat skin worm pupae and the wheat skin worm adults with the hermetia illucens pupae and the hermetia illucens adults, adding soybean curb residue waste for filling, and drying to obtain the protein feed. The kitchen garbage treatment method provided by the invention can simplify the conventional treatment process, reduce the cost, obtain the fertilizer and the protein feed at the same time, and improve the economic benefits of enterprises.

The invention discloses an inorganic plastic oxygen composite material and application thereof in a green agriculture and plant maintenance system. The inorganic plastic oxygen composite material is prepared from the following components: an inorganic internal peroxide bridge composite compound, an inorganic mediated catalytic material and a material balancing and stabilizing system, through the synergistic effect of all the components, the generation amount and the utilization efficiency of singlet oxygen are remarkably improved, and then the excellent pest control and pesticide residue degradation effects are achieved. In actual agricultural application, an aqueous solution prepared from the composite material can generate air containing singlet oxygen after being atomized and aerated, the air is uniformly released through a greenhouse pipeline, germ spores in the air can be quickly killed, and meanwhile, the composite material is sprayed on the surfaces of crops, so that mold and gray mold of the crops such as tomatoes and cucumbers can be effectively prevented and treated; the efficient degradation effect on organic phosphorus pesticide residues on the surfaces of the vegetables is realized. The whole technical scheme does not need to use chemical pesticides, meets the development requirements of green agriculture, can effectively reduce pesticide residue pollution, and protects the ecological environment of soil.

The present application belongs to the field of fertilizer preparation, and particularly relates to an active silicon-calcium-potassium-magnesium fertilizer, and preparation and application thereof. The active silicon-calcium-potassium-magnesium fertilizer contains biomass ash 60%, mineral humic acid 30% and binder 10% by weight. The active silicon-calcium-potassium-magnesium fertilizer is used as base fertilizer or topdressing. When used as base fertilizer, the application amount is 200 kg, and when used as topdressing, the application amount is 50 kg. The present application uses biomass ash of a biomass thermal power plant as the main raw material, adds appropriate amount of mineral humic acid, uses clay as binder, and uses granulation process to prepare granules, and then uses film spraying technology to inoculate functional bacterial agent. On the one hand, the present application solves the resource recycling of a large amount of biomass ash of a biomass power plant, and on the other hand, the present application improves the activity of silicon, calcium, potassium and magnesium in the product, and meets the needs of crops for silicon, calcium, potassium and magnesium.

The utility model discloses a device that improves chlorate decomposition quantity in ion exchange membrane caustic soda production, including stirring drum, the outer surface of stirring drum is installed with a set of support leg, and the bottom of each support leg is fixedly connected with support seat, the outer surface of stirring drum is installed with decomposition device, and the decomposition device includes first cross board, and the first cross board installs in the outer surface of stirring drum, and the upper surface of first cross board is installed with dissolving box, and the outer surface of dissolving box is installed with pH value detector. The device that improves chlorate decomposition quantity in ion exchange membrane caustic soda production, through the cooperation setting of decomposition device and stirring drum, through the collaborative work of metering pump and injection mixer, can real -time, accurate regulation chlorate decomposition tank export brine pH value, make it satisfy the requirement of dechlorination system, breaked through because of the pH value limit leads to the problem of chlorate decomposition quantity limited.

The application discloses a kind of complex phase alumina fibers and preparation method thereof, belong to ceramic fiber technical field, the preparation method is composed of the following steps: spinning, drying, heat treatment;The spinning, alumina spinning sol is carried out dry spinning, and alumina gel fiber is obtained;The crystal phase of the complex phase alumina fiber is one of the composite crystal phase of mullite and gamma-alumina or the composite crystal phase of mullite and alpha-alumina;The preparation method of the application improves ceramic yield, solves the problem of high mullite phase transition temperature of gel fiber, and the complex phase alumina fiber prepared has good mechanical properties and temperature resistance.

The application discloses a kind of lithium-containing wastewater's resource processing device and method, lithium-containing wastewater's resource processing device includes reaction tank, stirring assembly, reaction tank is used to store lithium-containing wastewater, stirring assembly is used to stir and handle lithium-containing wastewater in reaction tank, stirring assembly includes mounting bracket, mounting bracket is rotatably connected with stirring main rod, stirring main rod is provided with several stirring branch rods, first cavity is opened in stirring main rod, second cavity is opened in stirring branch rod, first cavity and second cavity are communicated, first cavity, second cavity can be used to flow heat source, stirring assembly further includes dosing line, dosing line is set on stirring main rod.Compared with prior art, a kind of lithium-containing wastewater's resource processing device of the application is conducive to extracting heavy metal ions in lithium-containing wastewater, reduces the filtration pressure of filter device, thereby reducing the cleaning and maintenance frequency of filter device, reduces the cost of lithium-containing wastewater's resource processing.

This invention discloses a method for preparing phenolic chemicals by hydrogenolysis of lignin catalyzed by a cobalt-based nitrogen-carbon composite material. Using organosoluble lignin as raw material, a cobalt-based nitrogen-carbon composite material as catalyst, and a mixed solvent of small organic molecule alcohol and formic acid, the reaction is carried out under an inert gas atmosphere of 0.5–3 MPa, maintaining a reaction temperature of 210–250 °C, and a reaction time of 2–6 h. This method catalyzes the depolymerization of lignin to obtain a series of p-hydroxyphenyl products, achieving high-value utilization of lignin. The lignin conversion rate of this invention is as high as 89.6%, the total yield of monophenolic products can reach 17.7%, of which the yield of p-hydroxyphenyl products reaches 9.0%, with a selectivity of 50.8%. The catalyst preparation process used in this invention is simple and can catalyze the hydrogenolysis of lignin by short-chain alcohols and carboxylic acid solvents under mild conditions to obtain high-value-added chemicals such as p-hydroxyphenyl products.

The present application relates to the field of freeze-dried preparations of leeches, and provides a freeze-dried powder containing multiple active enzymes and a preparation method thereof, to solve the problem that the prior art cannot simultaneously ensure the release of active ingredients and the maintenance of the stability of active ingredients, comprising the following steps: S100, cooling leeches to obtain freeze-dried leeches; S200, putting the freeze-dried leeches into a solution system, crushing, centrifuging, and taking the supernatant; the pH value of the solution system is 6.5-8.5; the solution system at least comprises water; the crushing speed is 150-250 r / min, and the time is 5-8 min; S300, after the supernatant is separated and purified, freeze-drying is performed to obtain the freeze-dried powder of leeches. The present application adopts a freeze-crushing process, and after freezing, not only can the crushing operation be simply realized, but also the loss of active ingredients caused by high temperature can be reduced by utilizing the crushing process at low temperature of raw materials.

The utility model discloses a continuous ion exchange system based on multi-stage dynamic switching and intelligent feedback control, which is characterized in that a liquid inlet control device is arranged on a main liquid inlet pipe of each process position and is used for acquiring liquid inlet pressure and flow velocity in real time; an ultrasonic distance sensor is arranged at the upper end part of each resin column and is used for immediately detecting the height of resin in the resin column; a multi-dimensional data acquisition device is arranged on a liquid outlet pipe of each resin column and is used for acquiring the solid content, the ion concentration and the pH value of discharged liquid in real time; after the collected data is efficiently analyzed by the control system, the indexes of liquid inlet and liquid outlet of the ion exchange system can be monitored, and dynamic switching can be carried out in time. According to the scheme, the stability of the whole ion exchange system can be improved by monitoring the feed liquid in each stage in real time, manual intervention caused by sudden feed concentration change is reduced, the working efficiency is greatly improved, and meanwhile, the expenditure cost of a large amount of manpower and material resources is saved.

The invention discloses a composite permeable reactive barrier material based on a lanthanum-iron-magnesium-aluminum modified silicon-based porous medium and application of the composite permeable reactive barrier material, and relates to the technical field of environmental restoration. A composite permeable reactive barrier material based on a lanthanum-iron-magnesium-aluminum modified silicon-based porous medium comprises a reactive medium filled in a permeable reactive barrier, the reactive medium is composed of a phosphorus removal material, a heavy metal curing material and a microbial activator, and the surface of each component is coated with a slow release layer; wherein the phosphorus removal material is a silicon-based porous medium modified by lanthanum, iron, magnesium and aluminum elements. Compared with the prior art, according to the prepared composite reactive barrier system, through the synergistic effect of multi-component materials, phosphorus, heavy metal and organic matter in underground water are efficiently and synchronously removed, and the problems that a traditional medium is single in remediation target and prone to blockage are solved. Due to the specific design of the slow-release layer, the structural stability and the long-term effect of the material are remarkably enhanced, and the microbial activity and the extremely high pollutant removal efficiency can still be maintained in a low-temperature environment.