40results about How to "Degradation reaches" patented technology

The invention relates to a photo/electricity Fenton device for treating refractory organic wastewater, which comprises an electrolytic cell, wherein the electrolytic cell is a reaction tank with an opening at the top end and is of a main body structure of the photo/electricity Fenton device; a cathode and an anode of the reaction tank are respectively connected with a positive electrode and a negative electrode of a direct current voltage stabilizing power supply and are respectively arranged at two ends of the reaction tank; the cathode of the reaction tank adopts an ACF (Activated Carbon Fiber) electrode, an ACF fabric is wrapped on a metal iron plate, and the reaction tank is arranged on a magnetic stirring apparatus; an aeration machine continuously inputs air to the cathode; an ultraviolet lamp tube is inserted into the center of the reaction tank; and an iron rod is inserted into the reaction tank and is arranged between the ultraviolet lamp tube and the anode. Due to the adoption of the structure, the photo/electricity Fenton device has a simple structure, and is convenient in operation and reliable in operation; and aiming at the water quality conditions of organic wastewater, the current of the photo/electricity Fenton device, the spacing between substrates and the power of the ultraviolet lamp tube are regulated, so that the effluent quality reaches the biochemical treatment requirement.

The invention belongs to the technical field of environmental material preparation, and relates to a preparation method and applications of a nitrogen doped reduced graphene oxide supported CdTe/CdS heterojunction composite photocatalyst. The preparation method comprises following steps: (1) preparing nitrogen doped reduced graphene oxide (N-Rgo); (2) preparing CdTe nano particles; and (3) preparing a CdTe/CdS/N-rGO composite photocatalyst. CdTe and CdS semiconductors are used to establish heterojunction, and then N-rGO is loaded to prepare the photocatalyst, which can be used to degrade wastewater containing 2,4-dichlorophenol.

The invention provides a biological organic fertilizer for recycling spent bleaching clay. The raw material formula of the fertilizer comprises the following components: 50-70 parts of spent bleaching clay, 10-15 parts of humic acid, 0.5-2 parts of composite bacteria liquid, 0.5-1 part of a complex enzyme, 5-10 parts of aluminum-magnesium silicate and 0.01-0.1 part of a plant growth regulator, wherein the composite bacteria liquid is formed by mixing culture solutions of pseudomonas, bacillus subtilis, white-rot fungi, bacillus cereus and bacillus thuringiensis according to a volume ratio of 1:(1.3-1.6):(0.5-1.1):(0.3-0.6):(0.2-0.4); the complex enzyme is formed by mixing amylase, lipase and ligninase according to a mass ratio of 1:(1.4-1.6):(0.3-0.8); and the plant growth regulator is a combination of brassinolide and one or more selected from benayl aminopurine, furfurylaminopurine and diethylaminoethyl hexanoate. The biological organic fertilizer disclosed by the invention has the effects of controlling soil pests and degrading pesticides and chemical residues in the soil, has multiple functions of curing and stabilizing heavy metal ions in the soil and the like, and is excellent in comprehensive improvement effect. Moreover, the problem that roots and seedlings are burnt is solved, and the cost is low.

The invention relates to a high-energy active ion generating device and a use method thereof. The high-energy active ion generating device comprises a cavity, an air supply assembly arranged in the cavity, an ion generating module, and a sub-high pressure generator and a medium source container connected with the cavity; and the sub-high voltage generator and the medium source container respectively provide sub-high voltage and a medium. The medium flows into the ion generating module to be converted into high-energy active ions, high-flux atomized liquid drops are formed, and the atomized liquid drops are suitable for killing germs and degrading organic pollutants. The device is simple in structure, convenient to disassemble, low in production cost and convenient to maintain. According to the device, vaporific high-energy active ions are generated by utilizing the medium (such as water) under the combined action of sub-high voltage and micropores, so that the effects of degrading organic pollutants and killing germs can be achieved, and secondary pollution is avoided.

The invention discloses a TiO2-doped Co composite photocatalyst, a preparation method thereof and an application of the TiO2-doped Co composite photocatalyst in treatment of phenolic wastewater. The preparation method comprises the following steps: slowly dropwise adding tetrabutyl titanate into absolute ethyl alcohol, and violently stirring for 30-60 minutes at room temperature to obtain a mixedsolution A; taking absolute ethyl alcohol, glacial acetic acid, concentrated nitric acid and a cobalt nitrate aqueous solution, and uniformly stirring to obtain a mixed solution B; and dropwise addingthe mixed solution B into the mixed solution A, stirring, standing for precipitation, washing the obtained solid with ultrapure water and absolute ethyl alcohol, drying at 100-120 DEG C, grinding theobtained solid particles into powder, calcining in a muffle furnace, cooling, and grinding again to obtain the TiO2-doped Co composite photocatalyst. The TiO2-doped Co composite photocatalyst prepared by the method has very strong electron obtaining ability, changes the movement conditions of electrons and holes, and greatly improves the photocatalytic activity.

The invention discloses a method for preparing novel and efficient reduced ion particle fillers, and relates to the technical field of preparation of chemical fillers. The method comprises the following steps: selecting the following raw materials by weight: 70%-80% of iron powder, 6%-10% of a mixture of copper and copper chloride, 5%-15% of manganese dioxide, 3%-5% of graphite powder, 1%-2% of a mixture of zinc and zinc chloride; crushing, screening and uniformly mixing all the raw materials; uniformly spraying 8% of a potassium hydroxide solution to a mixed material according to a mass ratio of the mixed material to the potassium hydroxide solution being 12:1; then performing molding, baking, staged high-temperature firing, cooling, crushing and sieving treatments to obtain the novel and efficient reduced ion particle fillers. Compared with single copper chloride or zinc chloride selected as a catalyst, a composite catalyst has a higher catalytic efficiency and has advantages in overcoming surface passivation of fillers; in addition, the 8% of potassium hydroxide solution is used as a spraying agent, so that the firing cost is greatly reduced without degrading the product performance.

The invention discloses a multifunctional split type agricultural and pastoral waste harmless treatment device, and the device comprises a first-stage biological fermentation tank and a second-stage high-temperature sterilization tank; the first-stage biological fermentation tank and the second-stage high-temperature sterilization tank are arranged on a support, the first-stage biological fermentation tank is a steel roller, and a spiral blade structure is arranged on the inner wall of the roller; the roller is connected to the transmission mechanism and can be driven by the transmission mechanism to rotate, and the spiral blade structure is driven to rotate through rotation of the roller. The second-stage high-temperature sterilization tank is arranged below the first-stage biological fermentation tank, and a discharge hole of the first-stage biological fermentation tank is communicated with an inlet of the second-stage high-temperature sterilization tank. By selecting different device components, the device can realize innocent treatment of two objects of livestock and poultry manure and livestock and poultry died of illness, and livestock and poultry manure innocent treatment equipment and livestock and poultry died of illness do not need to be purchased independently. Therefore, the device can save the harmless treatment cost of the breeding waste of the grass-roots breeding farm, and is convenient for market popularization and application of the device.