96results about How to "Thorough purification" patented technology

The invention discloses a treatment method for dyeing and printing effluent. The method comprises the steps of primary settlement, filtration, hydrolytic acidification treatment, anaerobic treatment, oxidation treatment, coagulation decolorization treatment, photocatalytic treatment, activated carbon adsorption and ultrafiltration treatment. According to the treatment method for the dyeing and printing effluent, through effective combination of multiple technologies, the dyeing and printing effluent can be effectively treated, the effluent COD is smaller than or equal to 20 mg / L, the effluent BOD is smaller than or equal to 5 mg / L, the effluent SS is smaller than or equal to 5 mg / L, the sludge output is low, the effect is stable, the water quality meets 'The reuse of urban recycling water-Water quality standard for urban miscellaneous water consumption'(GB / T 18920-2002), and treated water can be applied to community and garden greening, road watering and the like.

The invention discloses a waste gas catalytic combustion and biological purification device. The waste gas catalytic combustion and biological purification device is characterized by comprising a catalytic combustion device and a biological spray washing tower, wherein the catalytic combustion device is composed of a heat exchanger and a catalytic combustion bed which is internally provided with an automatic heating device; an air intake end and an air exhaust end of the catalytic combustion bed are respectively connected with a heat exchanger pipeline; an air inlet of the biological spray washing tower is connected with the heat exchanger pipeline; waste gas enters the catalytic combustion bed through the heat exchanger for catalytic combustion, reaction heat is recycled through the heat exchanger, then the waste gas enters the biological spray washing tower to be subjected to spray purification; the waste gas purification effect is thorough, and the catalytic combustion biological purification waste gas device is suitable for the surrounding environment with residents; and the recycled reaction heat of the heat exchanger is used for heating the waste gas of charge materials, prevents energy source waste, and is economical and practical.

The invention discloses a method for preventing and controlling nitrogen and phosphorus non-point source pollution in farmland. The method comprises the steps of control over a source of the farmlandnon-point source pollution, wherein the use amount of chemical fertilizer and chemical pesticide is reduced; 2, adoption of a farmland ditch interception system, wherein multiple longitudinal ditchesare excavated at equal intervals in the width direction of the farmland, multiple transverse ditches are excavated at equal intervals between every two adjacent longitudinal ditches, and bio-carbon layers, soil layers, bio-carbon layers and soil layers are sequentially laid in the longitudinal ditches and the transverse ditches respectively from top to bottom; 3, adoption of a farmland tail waterpurification interception system, wherein a water collection ditch communicated with the longitudinal ditches is formed in the ridge of the farmland, and a water purification device is arranged belowthe lower end of the water collection ditch and comprises a water collecting and sand setting tank, a hydrolysis acidification tank, an anaerobic sedimentation tank, an ecological purification tank and a clear water pool which are communicated with one another in sequence. According to the method, not only can residual nitrogen and phosphorus elements in the farmland be efficiently and quickly removed, but also discharge of nitrogen and phosphorus can be effectively controlled, and recycling of farmland drainage is achieved.

The invention belongs to the technical field of air purification, and particularly relates to a method for preparing an air purification material from a microporous medium through catalytic oxidation and the air purification material. According to the method, the air purification material is prepared by taking a microporous medium substrate, an oxidizing agent, a catalyst and a pH color developing agent as raw materials through the steps of 1 centrifugal impregnation loading, 2 steaming and pressing loading, 3 drying, 4 surface color developing treatment and the like; the catalytic oxidizing agent is loaded on the wall face of the microporous medium and microporous channels through a centrifugal impregnation mode, and therefore the loading speed and the loading degree are high; by means of steaming and pressing loading, the loading degree can be intensified under the saturated vapor pressure and internal energy, the structure of the microporous medium can be optimized, hole penetrating is improved, and improvement of the purification property is promoted; after surface color developing treatment, and the color of the surface of the purification material can be changed by acidic materials generated in purification, so that the experience feeling of the purification capacity and effect is obtained. The air purification material has the advantage of achieving thorough, rapid and lasting purification.

The invention relates to a floccule-preventing gas purifying device. The floccule-preventing gas purifying device comprises an air inlet floccule-preventing device, a gas washing chamber, a gas outletpipe device and a mist spraying device. Through specific arrangement of the air inlet floccule-preventing device and gas washing chamber, catkin, poplar floccule and other floccule can be collected and treated, so that prevention of floccule from entering the purification device and causing damage to the treatment device is achieved, and increase of the loss of consumables is avoided; and througharrangement of the mist spraying device, the humidity of the purified gas entering a room can be increased at any time.

The invention discloses a vertical air conditioner indoor unit. The vertical air conditioner indoor unit comprises an air treatment device, the air treatment device comprises a shell, an induced draftfan, a water treatment part, a water container and a sterilization module, an indoor air inlet, a fresh air inlet and an air outlet are formed in the shell, an air treatment air duct is formed in theshell, the induced draft fan, the water treatment part and the water container are arranged in the shell, the indoor air inlet and the fresh air inlet are formed in the rear wall of the shell, the water treatment part is configured to guide water in the water container to the air treatment air duct so as to enable water molecules to make contact with air in the air treatment air duct, and the sterilization module is used for carrying out sterilization treatment on the water stored in the water container. The vertical air conditioner indoor unit can purify the air more thoroughly.

The invention relates to a purification treatment system and a treatment method of malodorous gas. The treatment system comprises a first purification unit and a second purification unit which are arranged at a malodorous gas source, wherein the first purification unit comprises a rack, a gas collecting hood, an amalgam vapor lamp, a flow guide plate and an exhaust pipe; the rack is arranged at the malodorous gas source, the gas collecting hood is arranged on the rack, a gas inlet and a gas outlet are formed in the gas collecting hood, the amalgam vapor lamp is arranged inside the gas collecting hood, the flow guide plate is arranged at the gas inlet of the gas collecting hood, and the exhaust pipe is used for communicating the gas outlet of the gas collecting hood with external; the amalgam vapor lamp is arranged in the gas collecting hood along the length direction of the gas collecting hood and can emit ultraviolet light waves within a waveband range of 170-380nm; the periphery of the gas inlet can be sealed by the flow guide plate, and the flow guide plate is positioned below the amalgam vapor lamp. The second purification unit comprises optical energy composite particle purification devices arranged above and around the rack. Under the coactions of the first purification unit and the second purification unit, the malodorous gas can be completely purified by the treatment system and the treatment method, and meanwhile the treatment system is simple in structure, small in occupied area and low in cost.

The invention belongs to the technical field of air purification, and particularly relates to a method for preparing an air purification material from a microporous medium through catalytic oxidation and the air purification material. According to the method, the air purification material is prepared by taking a microporous medium substrate, an oxidizing agent, a catalyst and a pH color developing agent as raw materials through the steps of 1 centrifugal impregnation loading, 2 steaming and pressing loading, 3 drying, 4 surface color developing treatment and the like; the catalytic oxidizing agent is loaded on the wall face of the microporous medium and microporous channels through a centrifugal impregnation mode, and therefore the loading speed and the loading degree are high; by means of steaming and pressing loading, the loading degree can be intensified under the saturated vapor pressure and internal energy, the structure of the microporous medium can be optimized, hole penetrating is improved, and improvement of the purification property is promoted; after surface color developing treatment, and the color of the surface of the purification material can be changed by acidic materials generated in purification, so that the experience feeling of the purification capacity and effect is obtained. The air purification material has the advantage of achieving thorough, rapid and lasting purification.

The invention discloses an air purification bed layer and application thereof. The air purification bed layer comprises two or more than two characteristic purification layers; the number of layers of the characteristic purification layers can be adjusted according to the types of pollutants in the air; each characteristic purification layer comprises a carrier material and a purifying agent; the purifying agent is a material having a purification effect on one or more pollutants with similar or identical performance in the air. The air purification bed layer has stronger purification pertinence to pollutants, each characteristic purification layer only performs purification on pollutants belonging to a same type or having the same properties, the purification efficiency and effect can be better, reasonable distribution of the purifying agent variety and dosage can achieve a best purification effect, and the utilization rate can be higher. The air purification bed layer can be applied to air purification equipment, can significantly improve the purification efficiency of air purification equipment, and is suitable for air pollution under various air purification environments.

The invention relates to the technical field of waste disposal equipment, in particular to an improved activated carbon adsorption tank, comprising a tank body, the left end of the tank body is provided with an air inlet, the interior of the air inlet is provided with an air inlet tube, the left end in the tank body is provided with a liquid pool, the right end of the tank body is provided with anair outlet, and an ultraviolet lamp is arranged on the upper side wall, near the air outlet, of the tank body. The tank of the invention has a strict structure, simple operation and convenient use, an activated carbon adsorption plate can be quickly conveniently replaced, and the problems that the adsorption effect is poor because the contact time between exhaust gas and an activated carbon adsorption plate in a general activated carbon adsorption tank is short and the contact area is small are solved. The tank can dissolve and filter soluble pollutants in the exhaust gas in advance, and cansterilize the gas after the adsorption, so that the adsorption effect of the adsorption tank on the exhaust gas is greatly improved, the service life of the activated carbon adsorption plate is prolonged, the use cost is reduced, purification of the exhaust gas is more thorough, harmful gas emission is reduced and the air environment is protected.