2162 results about "Secondary treatment" patented technology

The invention discloses a magnetic biological carrier and a preparation method thereof. The raw materials of the magnetic biological carrier comprise aggregate, iron oxide, a binder and a reducing agent. The preparation method of the magnetic biological carrier comprises the following steps of: mixing the aggregate, iron oxide and the reducing agent, crushing, screening with a 60-mesh sieve to obtain a mixed material, adding water which is 30-60% of the mixed material by weight to the binder, stirring for dissolving the binder to obtain a binder solution, then mixing the binder solution with the mixed material, uniformly stirring, granulating and shaping to obtain 2-10 mm granules, drying the granules till the water content of the granules is less than 10%, and calcining at the temperature of 350-1100 DEG C for 0.2-10 hours to obtain the magnetic biological carrier. The magnetic biological carrier provided by the invention can be applied to the deep treatment of secondary treatment water of domestic sewage, meets the requirements of landscape water replenishing and circulating cooling water treatment, and can be used for realizing the deep treatment and resource utilization of industrial wastewater.

An efficient and environmentally beneficial method of recycling and producing methanol from varied sources of carbon dioxide including flue gases of fossil fuel burning powerplants, industrial exhaust gases or the atmosphere itself. Converting carbon dioxide by chemical or electrochemical reduction secondary treatment to produce essentially methanol, dimethyl ether and derived products.

Methods, apparatus and systems for personal care, such as treatment of a skin or hair treatment surface, are disclosed. In some embodiments, a base device is configured to thermally modify (heat or cool) an applicator on a hand piece that can then be used to cleanse, treat and / or otherwise rejuvenate the treatment surface. The applicator can be formulated with a smooth or abrasive material that can absorb, be coated with or otherwise take up a variety of materials, such as liquids, lotions, gels or creams, which are suitable for application to the treatment surface. The base device may thermally modify the material that is then coupled to the applicator and applied to the treatment surface during treatment. Application of the applicator at the desired temperature to the treatment surface may, for example, stimulate deeper blood circulation, clear pores, diminishes or removes deep and fine wrinkles, accelerate acne clearing, treat blemished skin, decrease edema and erythema of the skin, and / or reduce puritis of various etiologies. The hand piece may comprise one or more secondary treatment elements, such as LEDs for photoactivation, electrodes for delivery of micro-currents or vibrating elements for rubbing or abraiding, in order to achieve additional activation of the treatment surface and / or of the thermally modified material coupled to the applicator, which may enhance or improve treatment.

Polymer particles are provided having (1) a core with a glass transition temperature within a range of −50° to +110° C. and (2) a shell surrounding the core. The core comprises at least one layer, with the layer(s) comprising at least one polymerized hydrophobic monomer and, optionally, a first cross-linker. The shell comprises a copolymerized mixture of least one hydrophobic monomer and at least one hydrophilic monomer and a second cross-linker for increasing thermal shear stability by forming cross-linkages. Use of these polymer particles in aqueous-based ink-jet inks provide laser print quality without any secondary treatment.

In the proposed condensation product based on amino-s-triazines with at least two amino groups, formaldehyde and sulphite, the molar ratio of amino-s-triazine, formaldehyde and sulphite is 1:2.5-6.0:1.51-2.0 and the formiate content is less than 0.3 wt %. The condensation product is obtained by a) heating amino-s-triazine, formaldehyde and a sulphite in the molar ratio 1:2.5-6.0:1.51-2.0 in an aqueous solution at a temperature of 60-90° C. and a pH level of between 9.0 and 13.0 until the sulphite can no longer be detected; b) continuing the condensation at a pH level of between 3.0 and 6.5 and a temperature of 60-80° C. until the condensation product has a viscosity of 5-50 mm / s at 80° C.; and c) adjusting the pH level of the condensation product to 7.5-12.0 or carrying out thermal secondary treatment at a pH level of >10.0 and a temperature of 60-100° C. The product can be used as an additive for inorganic binders such as cement.

The invention relates to an ultrafine particle deduster used for treating industrial fumes. Specifically, an electro-bag compound deduster of the second-grade filtration mode is improved, an onflow vortex mechanism is arranged between the outlet of a filter bag dedusting mechanism and the inlet of an induced draft fan, and the onflow vortex mechanism comprises an onflow vortex chamber, a fume inlet tube and a fume outlet tube; the onflow vortex chamber is in bucket shape of which the cross section is an inversed isosceles trapezoid, and the bottom of the onflow vortex chamber is connected withan ash bucket chamber. Secondary treatment fume which contains finer particulate matters enters the fume inlet tube; airflow downwards deflects after passing through an air deflector and enters the onflow vortex chamber, and finer particulate matters and the inner wall of the onflow vortex chamber diffuse and collide to accelerate ultrafine particles to precipitate, thus separating ultrafine particulate matters from fume. The filter efficiency of the ultrafine particle of the invention can reach above 99.99%; under the condition that the resistance of the deduster body is smaller than 1000Pa(other conditions are same), an anode or cathode fiber filter bag of which the mesh aperture is 5 mu m is used, and the outlet concentration of the deduster is smaller than 15mg / Nm<3>.

The invention relates to a method and a device for the secondary treatment and the cooling of preforms (10) once they have been removed from the open mould halves (18, 9) of an injection moulding machine. The preforms are removed from the open moulds (18, 9) while still hot, by means of water-cooled cooling sleeves (21) of a removal device (11), and are subjected to intensive cooling during the duration of an injection moulding cycle. Both the entire inner side and the entire outer side of the blow-moulded part (10) are subjected to intensive cooling. Secondary cooling is then carried out, the duration thereof being equal to a multiple of the duration of an injection moulding cycle. After being removed from the casting moulds, the preforms are dynamically introduced into the cooling sleeves (21) until they fully touch the walls thereof. The inner cooling is carried out in a time-delayed manner.

The invention discloses a method for preparing a seaweed cellulose aerogel oil absorption material and relates to a method for preparing an oil absorption material. The method comprises the following steps: I, purifying seaweed cellulose; II, preparing seaweed nano cellulose microfibril in a mechanical colloid milling mode; III, preparing seaweed cellulose aerogel; and IV, performing hydrophobic modification on the seaweed cellulose aerogel. The seaweed cellulose aerogel oil absorption material prepared by using the method is natural and pollution-free and has the advantages of high oil absorption efficiency, , good strength, simple secondary treatment and the like, and is an important development direction of novel aerogel oil absorption materials.

The invention relates to a method for monitoring the circumferential strain of a casing by applying optical-fiber grating sensors, which mainly solves the problem that an electric-resistance strain gauge adopted of the current technology for monitoring the circumferential deformation of the casing is easy to be affected by electromagnetism in a well and corrosion, thus causing a measured circumferential strain signal of the casing to be inaccurate. The method is characterized in that: the optical-fiber grating sensors are arranged outside the casing along the circumferential direction of the casing, wherein, a plurality of optical-fiber grating sensors are evenly arranged around the casing; sections of adjacent intervals form a certain angle; an optical-fiber temperature compensating sensor is arranged in a position at a corresponding distance away from the group of sensors; the optical-fiber grating sensors are applied to monitoring the circumferential deformation and stress status of the casing within certain ranges; meanwhile, the temperature compensating sensor is applied to serving the temperature compensation and temperature monitoring in the well of the strain sensor; the sensors transmit underground signals to the ground by a transmission optical cable; and the signals can be transformed into the circumferential strain information of the casing after a demodulation instrument obtains the signals and carries out secondary treatment. The method is characterized by not being affected by the underground electromagnetism.

The invention discloses a breeding sewage treatment method which comprises the following steps of: firstly deslagging sewage, then hydrolyzing, acidifying and regulating, then treating the sewage through a UASB (Upflow Anaerobic Sludge Blanket) reactor, and then carrying out corresponding biochemical treatment through a first-stage A / O treatment system, an intermediate sedimentation tank and a second-stage A / O treatment system sequentially; then sequentially carrying out dephosphorization treatment and flocculation treatment on the sewage subjected to the biochemical treatment to remove sediments, wherein supernatant liquid flows into a final sedimentation tank for further sedimentation, and then the supernatant liquid flows into a pH regulating tank so that the pH value of the supernatant liquid is regulated to be 6-9; then carrying out sterilizing treatment so as to achieve emission on standard. The breeding sewage treatment method disclosed by the invention realizes high-efficiency low-consumption synchronous treatment on carbon, nitrogen and phosphorous to remove total nitrogen, ammonia nitrogen and total phosphorus, thereby ensuring the water quality, improving the production efficiency and greatly reducing the production cost; the breeding sewage treatment method disclosed by the invention has the advantages of simple process, stability in system, small occupied area, low operating cost and the like.

A process for the production of highly purified water 44 from Fischer-Tropsch reaction water 12 includes distillation 14 as a primary treatment stage, biological treatment including anaerobic digestion 20 and aerobic digestion 22 as a secondary treatment stage, solid-liquid separation 32 as a tertiary treatment stage and a dissolved salt and organic removal stage 40 as final treatment stage.

The invention discloses tangerine and Puer tea and a preparation process thereof. The preparation process of the tangerine and Puer tea comprises the following steps: cleaning, tangerine pre-treatment, secondary treatment of tangerine peels, air vent forming, tea packaging, sun drying and the like. The tangerine and Puer tea comprises a tangerine and Puer tea container and tea leaves positioned in the container, wherein the tangerine and Puer tea container comprises a cover body, an opening and a container body; the cover body is formed by cutting a similar ellipse in the tangerine peel; the opening is formed in the tangerine peel after the cover body is taken out and is provided with a similar elliptical contour line; the container body is prepared from a tangerine peel part of which pulp is removed from the opening; air vents for preventing leakage of the tea leaves are formed in the container body and the cover body; and after the tangerine and Puer tea container is filled with the tea leaves, the cover body is clamped into the opening by using the elasticity of the tangerine peel so as to ensure that the cover body is positioned on the tea leaves and can rotate in the container body. The tangerine and Puer tea disclosed by the invention has air permeability, is easy to dry, and is long in guarantee period of the tea leaves; and the process disclosed by the invention can be used for improving the discharge efficiency of water vapor in tangerines, and the purposes of natural and uniform sun-drying and natural aging can be achieved.

Polymer particles are provided having (1) a core with a glass transition temperature within a range of -50 to +110° C. and (2) a shell surrounding the core. The core comprises at least one layer, with the layer(s) comprising at least one polymerized hydrophobic monomer and, optionally, a first cross-linker. The shell comprises a copolymerized mixture of least one hydrophobic monomer and at least one hydrophilic monomer and a second cross-linker for increasing thermal shear stability by forming cross-linkages. Use of these polymer particles in aqueous-based ink-jet inks provide laser print quality without any secondary treatment.

The invention relates to a process for pre-treating wastewater containing oil of a cold rolling mill, which solves the problems of poor demulsification effect, high investment, high energy consumption, low recovery rate of waste oil, mass waste residue generation and substandard treated effluent existing in the prior process for pre-treating wastewater containing oil of the cold rolling mill. Recycling of waste oil can be realized through acidification demulsification, oil reclaiming treatment, re-demulsification treatment, flocculation treatment and air floatation separation by steam introduction and the acidification demulsification, so that reclamation rate of the waste oil is improved, energy consumption and investment are reduced, the amount of the waste residue is small, and each index of the pretreated wastewater can be reduced to meet the requirement of secondary treatment so as to greatly reduce the load of the secondary treatment.

The invention discloses a process for removing thallium from thallium-containing heavy metal wastewater through neutralization and flocculation. The process comprises the following steps: performing primary treatment, namely adjusting the pH value of thallium-containing heavy metal wastewater to be more than 7through acid and alkali, adding an efficient coagulant, sulfide and a flocculant, and performing solid-liquid separation through a slanting board sedimentation pool; performing secondary treatment, namely adding sulfide, diatomite and the flocculant into supernatant purified water after primary treatment, and performing solid-liquid separation through the slanting board sedimentation pool; adjusting the purified water subjected to secondary treatment to be neutral, adding iron salt, and finally filtering through a filter and directly discharging to the outside. Due to the adoption of the technical scheme, the removal rate of thallium and other heavy metal ions in the heavy metal wastewater can be effectively increased, the environmental pollution can be avoided, and the medicament cost can be reduced.

There is provided a process for purification treatment of wastewater containing an organic substance. There is provided a process for purification treatment of wastewater containing an organic substance by carrying out supercritical treatment or subcritical treatment, which comprises subjecting the wastewater to at least one solid-liquid separation pretreatment selected from separation treatment with a flocculant, sedimentation treatment, flotation treatment and filtration treatment; and then subjecting the wastewater to primary treatment as biological treatment; and subsequently purifying the wastewater by treatment including secondary treatment as supercritical treatment or subcritical treatment.

The invention discloses a method for detoxifying, emission-reducing and deeply treating wastewater of electronic electroplating industry. The method disclosed by the invention integrates the processes of micro-electrolyzing and breaking complex of iron-carbon, collecting via a heavy metal collector, coagulating and precipitating, biologically contacting and oxidizing, secondarily precipitating and absorbing via modified chitosan for detoxifying, reducing emission and deeply treating wastewater of electronic industry. The method disclosed by the invention is characterized in that the emission of secondary treatment (biochemical pool) wastewater is further reduced on the basis that the main indexes reach the national standard and toxic organic matters mainly consisting of benzene series are removed; and meanwhile, the wastewater can be deeply treated, so that the recycled water reaches the membrane-feeding requirement and separates are recycled.

The invention discloses a disposing method of industrial effluent sewage with two grade magnetic separating technology, which comprises the following steps: magnetic flocculating; magnetic drum separating; setting as first grade dispose; magnetic filtering; backwashing and twice magnetic powder reclaiming; setting as second grade dispose. The waste water through two grade dispose is homologous to ultrafiltration function. This invention possesses high purity, quick speed and high efficiency, which can fit for disposing industrial effluent sewage with different scale.

Intelligent exercise state detection system, the present invention proposes a method and system for detecting the wearer's exercise state including predicting the risk of falling, detecting falls and calculating the amount of exercise. The method and system include: an acceleration sensor for picking up the movement of the wearer, a gyroscope, a magnetometer, an air pressure sensor group, a WIFI module, a GSM / GPRS / 3G / 4G communication module, a GPS / Beidou positioning module, a power supply module, and control each Modules and microprocessors that process sensor data form wearable smart terminals, servers, computers, and mobile client terminals. Calculate the amount of exercise of the wearer based on the measurement data of the sensor group, predict the risk of the wearer's fall and check the fall event, and transmit the processed result data, event and position information to the mobile terminal or the phone to notify the specific contact through the server. Perform secondary processing, and then achieve a new technology that family members or guardians can better monitor and care for the wearer.

The invention relates to a dynamic control method for sewage treatment, which comprises the following steps: adopting sensors to input the COD signal and the liquid-level signal to an analysis control device; calculating the COD load rate after the comparison with the terminal effluent requirement; carrying out the biochemical treatment of sewage according to the reaction times of the relevant procedures and the control parameters which are calculated on basis of the COD load rate; comparing the COD value of the discharged or reclaim water body with the standard value; and discharging or reclaiming if the COD value meets the standard and otherwise carrying out the secondary treatment. The devices used in dynamic control method further include COD concentration sensors, liquid level sensors and dissolved oxygen concentration sensors, which are arranged inside a water inlet regulating pond, a biochemical pond and an intermediate regulating pond respectively. The sensors are connected with the analysis control device. The dynamic control method integrally adopts the dynamic control mode, can accurately control the water treatment capacity and the aeration capacity in unit time, and ensure that the water discharge meets the water quality standard completely on the premise of the minimal energy consumption.

The invention discloses a preparation method of an alkali oxygen evolution reaction electrocatalyst. The preparation method comprises the following steps: firstly, carrying out ultrasonic cleaning on a conductive substrate, then preparing aqueous solution with soluble cobalt salt, soluble manganese salt, ammonium fluoride and urea, and in a reaction kettle, vertically growing a manganese cobalt subcarbonate nano array multilevel structure on the surface of the substrate; then preparing aqueous solution with soluble alkali and a reducing agent, carrying out secondary treatment, and carrying out structure and performance optimization on the manganese cobalt subcarbonate nano array multilevel structure; finally, in a tube furnace, in nitrogen or argon atmosphere, carrying out calcination at a temperature of 200 to 1,000 DEG C to prepare the alkali oxygen evolution reaction electrocatalyst with a manganese-doped cobalt oxide nano array multilevel structure. The preparation method disclosed by the invention adopts a simple hydro-thermal synthesis / calcination treatment method, is simple in process and is easy to regulate and control; the prepared product is excellent in performance and is an electrocatalyst with wide prospect in the application process of alkali water decomposition.

The invention discloses a system for using cement rotary kiln and incinerator to process life waste of city. It comprises a waste incinerator, a cement generator, a controller and several channels. It is characterized in that: said waste incinerator comprises rotary waste incinerator (7), waste feeder (6), waste tank (4), bag deduster (3) and wind discharger (2); said cement generator comprises a cement rotary kiln (15) whose head is connected to a material cooling device (21) and end is connected to a preheat device (12); said waste incinerator, cement generator and several channels form a closed system. The invention can be used to treat city life waste, while its heat and slag can be utilized, with lower pollution discharge and lower cost, without secondary treatment.

A process for the production of highly purified water 38 from Fischer-Tropsch reaction water 12, includes at least the steps of a primary treatment stage comprising an equilibrium staged separation process 14 having at least one stage for removing at least a fraction of non-acid oxygenated hydrocarbons from the Fischer-Tropsch reaction water 12 to produce a primary water-enriched stream 16, a secondary treatment stage comprising at least one membrane separation process 28 for removing at least some suspended solids and acidic oxygenated hydrocarbons from at least a portion of the primary water-enriched stream 16 to produce a secondary water-enriched stream 34 and a tertiary treatment stage comprising a dissolved salt and organic removal stage 36 for removing at least some dissolved salts and organic constituents from at least a portion of the secondary water-enriched stream 34.

The present invention relates to a comprehensive treatment process of house refuse. Said treatment process includes the following steps: (1), squeezing and dehydrating; (2), storing and making fermentation, (3), using rotary baking incinerator to make firest incineration; (4), using vertical incinerator to make secondary incineration; (5), smoke primary treatment; (6), smoke waste heat utilization for power goneration and heating water; (7), secondary treatment of smoke; and (8), utilization of incinerator slag to make building material.

The invention discloses an intelligent ventilation and purification window. The intelligent ventilation and purification window comprises aluminum alloy window borders, double-layer glass and widow rolling wheels, wherein the inner side of the double-layer glass is plated with a conductive coating, the double-layer glass is arranged inside the aluminum alloy window borders, an outdoor air inlet air grid towards outdoors, an indoor air outlet air grid towards indoors and an indoor air inlet air grid are arranged on the aluminum alloy window borders, the outdoor air inlet air grid and the indoor air inlet air grid are arranged oppositely, and are separated by an interlayer, and a multifunctional efficient filter screen is arranged on the inner side of the outdoor air inlet air grid. According to the intelligent ventilation and purification window, an air purifier is embedded into a traditional window, and a modularized simple installation mode is achieved on the premise that an original building window frame is not changed; by fully making use of an internal space structure of an aluminum alloy window, a fan and an air filtering device are creatively integrated in the window borders on the two sides, the natural interlay formed by the double-layer glass with the inner side plated with the conductive layer serves as a sedimentation pole of an electrostatic adsorption device to carry out secondary treatment on filtered outdoor air, and purification efficiency is greatly improved.

The invention relates to a method for highly efficient desulfurization and denitrification of flue gas and materials used. The main material is at least one of 50-99wt% calcium hydroxide, calcium carbonate, magnesium hydroxide, magnesium carbonate, sodium carbonate or sodium bicarbonate, Auxiliary material oxidizing agent: 1-50wt%. 0.1-10wt% binder can also be added. The desulfurization principle of the high-efficiency desulfurization and denitrification material provided by the invention is to oxidize sulfur dioxide into sulfur trioxide and then perform desulfurization reaction to generate calcium sulfate or other sulfate radical compounds. The compound no longer needs secondary treatment and is harmless to the environment, so The method can fundamentally eliminate the discharge of subsequent pollutants from flue gas desulfurization, and is environmentally friendly.