12417results about How to "Solve pollution" patented technology

The invention discloses a method for comprehensive treatment of oilfield waste, which is characterized by comprising the process steps of cleaning and separation, ultrasonic separation, tempering and destabilization, oil-water separation, centrifugal separation, mixed curing, air floatation separation, adsorption filtration, flocculating settling, oxidization electrolysis, deep purification and permeable filtration. Thus, the oilfield waste is treated and utilized in a classified manner, so that sump oil is recovered, the solid phase achieves the discharge standard of oilfield sludge treatment design specifications (SY / T6851-2012) or is reutilized for construction material manufacturing, and the liquid phase achieves the sewage comprehensive discharge standard (GB8978-1996) after being subjected to water treatment.

The present invention relates to a method for producing biological diesel oil-fatty acid methyl ester by using waste animal and vegetable oil with high acid value. It is characterized by that it adopts acidic catalysis method, under the action of acidic catalyst is makes the waste animal and vegetable oil react with low carbon alcohol, and adopts the following four steps: (1) dewatering; (2) esterification and ester exchange; (3) phase separation; and (4) decolouring so as to produce the invented biological diesel fatty acid methyl ester.

The invention relates to a low temperature ceramics non-watertight brick made of solid waste slag and a manufacture method thereof, belonging to the technical field of building materials. The mixture ratio by weight of the components of the low temperature ceramics non-watertight brick is that waste slag gelled material to waste slag skeletal material to porogenic agent to activating agent to addition agent to paint to water is equal to 100:200-800:0.1-40:13-50:0.2-3.0:0.1-7.0:1-20. After the process, mixture, vibrating forming and maintenance process for the raw materials, the raw materials are prepared into the low temperature ceramics non-watertight brick with a filled pore by taking the low temperature ceramics mineral as the matrix phase and taking the inorganic waste slag particle as the wild phase. Compared with the prior art, the low temperature ceramics non-watertight brick has the advantages of high strength, good permeability of water, high salvage value, simple process, low cost, environment protection and natural resources reservation, etc. which can be widely applied to the laying of urban highways.

The invention relates to a nutrition pot for grow seedling, wherein the constituents of the pot materials comprise the following ingredients (by weight ratio): peat coal 35-40, xylon nutrient 20-25, animal manure 15-20, Attapulgite 20-25, aggregate bacterium species 0.2-0.3. The pot material is produced through steps of mixing raw materials, stirring homogeneously, carrying out fermentation for 15-25 days at 50-70 Deg C, and press forming in pot-making machines.

The invention provides a method for preparing ethylene glycol from cellulose. In the method, the cellulose serves as a reaction raw material; a multi-metallic catalyst consists of catalytic active components comprising transition metals iron, cobalt, nickel, ruthenium, rhodium, palladium, iridium and platinum of groups 8, 9 and 10, and the metallic state, carbides, nitrides and phosphides of molybdenum and tungsten; and the high-efficiency, high-selectivity and high-yield preparation of the ethylene glycol from the cellulose is realized through a catalytic conversion process under a hydrothermal condition that the hydrogen pressure is 1 to 12 MPa and the temperature is between 120 and 300 DEG C. Compared with the ethylene glycol industrial synthesis route taking ethylene as the reaction raw material, the reaction provided by the invention has the remarkable advantages of regenerative raw material, environmental-friendly reaction process and atom economy.

The invention relates to a cultivation medium dedicated for roof afforestation, container plant cultivation, especially relating to compression type plant cultivation medium suitable for ground cover plant, perennial plant, undershrub etc. The inventive medium is composed of fertilizer, binding agent, plant growth regulator. The fertilizer comprises wooden nutrient, organic fertilizer, composite bacteria strain, the said binding agent is attapulgite soil, while plant growth regulator is rare earth additive. The inventive medium is optimum for nutrient collocation, light-weighted, washout-resistant, water-preservative, drought-resistant, air-permeable which can be widely used in court afforestation, especially for roof afforestation.

The invention discloses a method for recovering valuable metals from a waste printed circuit board. The method comprises the following steps: sorting and crushing the printed circuit board, evenly mixing powder containing multiple metal parts with a fluxing agent, and smelting at low temperature for 1-3.5h; adding hot water into smelting products for leaching; evaporating and concentrating filtrate after filtration, and then returning evaporation mother liquor to the water leaching process step; using solution after leaching for swirl electrodeposition of metal silver, and adding 5-25% of HNO3 into filter residue for leaching; filtering the solution after electrodeposition, and adding 1-5 times of the weight of aqua regia into the filter residue for leaching; using the solution after leaching by the aqua regia for the swirl electrodeposition of gold, adding saturated NH4Cl into the solution after the electrodeposition for reaction, then filtering, using ammonium chloroplatinate for refining the filter residue, obtaining sponge platinum, adding methanoic acid into the solution after precipitation, and carrying out reaction for obtaining crude palladium powder. The method can extract copper, nickel, silver, gold, platinum, palladium and other main products and other by-products, realize the maximization of reutilization of value metal resources in the waste printed circuit board and solve the environmental pollution problem; and the adoption of the swirl electrolysis technology can realize low energy consumption, low reagent consumption, short process flow and simple operation.

The invention discloses a resourceful treatment method and a resourceful treatment device for oil-containing sludge in oil fields by microwave pyrolysis. The oil-containing sludge is conveyed into an enclosed reactor heated by microwaves, and is subjected to pyrolysis treatment at the temperature of between 200 and 900 DEG C; oil, gas and water generated by the pyrolysis treatment are recycled; the residue after the pyrolysis is used as a roadbed material or modified by nitric acid or NaOH alkali; and the modified residue is used as an adsorbing material. After the method and the device are implemented, over 75 percent of crude oil in the oil-containing sludge can be recycled, the pollution fee of 1,000 yuan / t can be saved, the social and economic benefits are obvious, and the method and the device have wide market application prospect.

The invention discloses an energy-saving textile cloth cleaning device, which comprises a casing, the inner cavity of the casing is sequentially provided with a cleaning chamber, a drying chamber and a sterilization chamber from left to right, and a fixed frame on the left side of the casing passes through The fixed shaft is fixedly connected with the feed roller, the fixed frame on the right side of the housing is fixedly connected with the discharge roller through the fixed shaft, the upper left side of the housing is provided with a feed inlet, and the upper right side of the housing is provided with a The discharge port is fixedly connected with a water storage tank on the upper surface of the shell, and the bottom of the left side of the water storage tank is fixedly connected with a water delivery pipe, and a booster pump is fixedly connected with the water delivery pipe. The invention provides an energy-saving textile cloth cleaning device, which has the advantages of thoroughly cleaning and disinfecting the cloth, is effective in recycling the cleaning liquid to prevent water pollution, and has the advantage of effectively utilizing the heat in the drying chamber, solving the problem of The problems of waste of energy and incomplete cleaning of existing textile fabrics.

The invention belongs to the technical field of the recycling of fungus chaff from edible fungus cultivation, and in particular relates to a method for preparing soil for flowers by using edible fungus chaff. In the method, dried and crushed edible fungus chaff is uniformly mixed with auxiliary raw materials, the mixed raw material is fermented, the fermented mixed raw material is subjected to pH value adjustment and sterilization, and thus the soil for flowers is obtained. In the method, processed edible fungus chaff are used as a raw material for the soil for flowers, the original various nutrients and trace elements of the fungus chaff are retained, and thick, hard and wide fibers in the fungus chaff become short, loose and soft after the fermentation; and thus, the method improves the aggregate structure, organic matter content and fertility level of the soil, makes the nutrition of the soil for flowers more balance, contributes to the growth of flowers and trees, as well as promotes the improvement in the resistance against diseases and the quality of flowers.