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3578results about How to "Reduce secondary pollution" patented technology

Online high-pressure water-jet blasting surface cleaning system

An online high-pressure water-jet blasting surface cleaning system comprises a high pressure water feed mechanism, an abrasive material feed mechanism and a spray nozzle. The high pressure water feed mechanism and the abrasive material feed mechanism are communicated with an input end of the spray nozzle, an abrasive material collecting pit is arranged below the spray nozzle, an output end of the abrasive material collecting pit is divided into two paths, one path is connected with an input end of an abrasive material sorting device by an abrasive material cyclical feeding device and a pipeline, and the other path is connected with an input end of a waste water treatment circulating mechanism by a pipeline, an output end of the waste water treatment circulating mechanism is connected with the high pressure water feed mechanism by a pipeline, an output end of the abrasive material sorting device is divided into two paths, one path is connected with the abrasive material feed mechanism, and the other path is connected with a slag collection barrel by a pipeline. The online high-pressure water-jet blasting surface cleaning system has the advantages of simple and compact structure, low energy consumption, good environmental protection, good operational reliability and stability, and recycled water and abrasive materials.
Owner:CHANGSHA RES INST OF MINING & METALLURGY

Oil sludge cleaning and processing system for oil tank

The invention discloses an oil sludge cleaning and processing system for an oil tank. The oil sludge cleaning and processing system comprises a cleaning system, an oil sludge processing system and an integrated control system, wherein the cleaning system comprises a cleaning robot, an electric hydraulic pump, a water pump, an inert gas storage tank and a screw pump; the cleaning robot comprises a machine body, a traveling unit, a cleaning unit, a robot cleaning control unit, a sensing and communication unit and a robot power supply unit; the oil sludge processing system comprises an oil sludge processing device, an oil sludge processing control system and an oil sludge processing power supply device; the oil sludge processing device comprises a stirring machine, an ultrasonic emulsion breaking device, a centrifuge and an ultrafiltration system, as well as an oil sludge storage pool, a sludge pool, a centrifugal liquid storage tank, a concentration tank and a filtrate pool; a funnel is arranged on the stirring machine; and the integrated control system comprises an integrated control computer and a communication circuit module. The oil sludge cleaning and processing system disclosed by the invention has the advantages of reasonable design and high degree of intelligentization, and can realize comprehensive cleaning of the oil tank, good safety, fast oil sludge processing speed and resource utilization of oil sludge, and further reduce environmental pollution and waste of resources.
Owner:周利坤

Ammonia escape prevention device in desulfurization and denitrification of flue gas by using ammonia process

The invention relates to an ammonia escape prevention device in desulfurization and denitrification of flue gas by using an ammonia process. The ammonia escape prevention device comprises an oxidized air and original flue gas inlet, a purified flue gas outlet, a desulfurization tower, a mist eliminator, an ammonia washing section, an absorption section, a concentration section, an oxidation section, a circulating ammonia washing pump and a circulating ammonia washing tank, wherein the concentration section is connected upwards to the absorption section, the absorption section is connected upwards to the ammonia washing section, the ammonia washing section is connected upwards to the mist eliminator, the mist eliminator is connected upwards to the desulfurization tower, the purified flue gas outlet is connected and formed in the desulfurization tower, the ammonia washing section is connected to the circulating ammonia washing tank through a pipeline, the circulating ammonia washing pump is arranged on the pipeline which is connected from the ammonia washing section to the circulating ammonia washing tank, the oxidation section is connected to the absorption section and the concentration section through pipelines, a primary circulating pump is arranged on the pipelines which is connected from the oxidation section to the absorption section and the concentration section, the ammonia washing section is connected to the circulating ammonia washing tank through the pipeline and meanwhile connected to the absorption section and the oxidation section through the pipelines, and one ammonia washing section is arranged in front of the mist eliminator. The ammonia escape prevention device is simple in overall structure, convenient to operate and use, good in stability and high in reliability.
Owner:JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION

Method for recovering organic waste gas

The present invention discloses a recovery method of the organic waste gas, which comprises the following steps: firstly, the organic waste gas is pretreated in a strainer and a cooler; secondly, adsorbed by an adsorption tank, then desorbed by the water vapor after having a saturated adsorption, the desorbed mixed gas is condensed by the condenser again, then came into an oil-water separator, separating the solvent and the waste water; a dividing wall type heat exchange waste water heater is added between the adsorption tank and the condenser; the waste water separated from the oil-water separator is sent to the waste water heater, utilizing the excess heat of the water vapor desorbed from the adsorption tank, heated by the dividing wall type heat exchange, vaporizing the remnants solvent of the waste water; the solvent after vaporizing has a recycle treatment, the rest waste water after vaporizing comes into another active carbon absorber or sewerage station, adsorbing the micro-solvent of the sewerage until coming up to the standards, then being drained. The present invention utilizes the most of the excess heat of the water vapor desorbed from the adsorption tank to heat the sewerage, reduces the organic solvent content of the sewerage, enhances the recovery efficiency, reduces the reprocessing cost of the sewerage, and reduces the secondary pollution.
Owner:蔡志煌

Preparation method for composite magnetic adsorption material and method for removing heavy metal ions in waste water

The invention relates to a preparation method for a composite magnetic adsorption material and a method for removing heavy metal ions in waste water. The preparation method comprises the following steps: (1) putting a magnetic seed in a grinding machine for fine grinding so as to obtain a submicron magnetic particle; (2) mixing the magnetic particle and a high-molecular natural material capable of absorbing heavy metals with a solvent, adding a flocculating agent and carrying out uniform mixing and a reaction so as to obtain a spherical composite magnetic product; and (3) subjecting the composite magnetic product to magnetic separation, washing and drying so as to obtain the composite magnetic adsorption material. The magnetic adsorption material is added into waste water containing heavy metal ions, then stirring, adsorption and a reaction are carried out, a magnet separator is used for magnetic separation and adsorption of magnetic material containing heavy metal ions, and heavy metals are recovered. According to the invention, the adsorption material is easy to prepare; the removal rate of the heavy metals is high; the advantages of simple process, low cost and environment friendliness are obtained; and the methods are suitable for industrial application.
Owner:GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG

Beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent and use thereof

InactiveCN102350312AUniform particle size distributionInternal mass transfer resistance is smallOther chemical processesWater contaminantsSolubilitySorbent
The invention provides a beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent is prepared through a lay-by-lay assembling method. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent has good stability, good dissolvability and strong adsorption capability. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent has strong effects of adsorbing azo dyes such as methylene blue, methylene red and the like in waste water. The invention also provides a method for removing methylene blue in waste water. The method comprises the following steps of putting the beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent into an aqueous solution containing methylene blue, adjusting a pH value of the reaction system to a pH value of 7 to 8, carrying out ultrasonic dispersion for 0.5 to 1 hour, carrying out oscillation for 8 to 10 hours, and separating out precipitates by a permanent magnet. The method for removing methylene blue in waste water has the advantages of good adsorption effects, mild reaction, simple processes, simplification of solid-liquid separation, less secondary pollution and good feasibility for large-scale application.

Oily sludge treatment process and device

InactiveCN102757162AThe treatment process is simple and effectiveLow running costSludge treatmentAutomatic controlLiquid storage tank
The invention discloses an oily sludge treatment process and a device. The oily sludge treatment process includes the steps of watering and stirring for dilution, ultrasonic wave demulsification, solid-liquid separation and oil-water separation. The device comprises an oily sludge treatment system, an automatic control system and a power supply device, wherein the oily sludge treatment system comprises a stirrer, an ultrasonic wave demulsification device, a centrifugal machine, a ultra-filtration system, an oily sludge storage tank, a sludge tank, a centrifugation liquid storage tank, a concentration tank and a filtrate tank, the stirrer is used for adding water into oily sludge for diluting the oily sludge, the ultrasonic wave demulsification device is used for demulsifying the oily sludge, the centrifugal machine is used for performing solid-liquid separation to the oily sludge, the ultra-filtration system is used for performing oil-water separation to the oily sludge, the oily sludge storage tank is used for storing the oily sludge, the sludge tank is used for storing the sludge, the centrifugation liquid storage tank is used for storing oily sewage, the concentration tank is used for storing oil, and the filtrate tank is used for storing water. According to the oily sludge treatment process and the device, the design is novel and reasonable, achievement costs are low, the treatment speeds are fast, the separation of the oil, the sludge and the water is thorough, the resource utilization of the oily sludge is achieved, and environmental pollution and resource waste are reduced.
Owner:周利坤

City management intelligent streetlamp

The invention discloses a city management intelligent streetlamp which comprises a streetlamp body arranged on a municipal road. A core controller is arranged in a lamp post of the streetlamp body. The core controller is connected with an illumination system, a water supply pipeline, an environment monitoring system and a communication system. The illumination system comprises a city streetlamp and a streetlamp controller. The streetlamp controller is in controlled connection through the core controller. The communication system comprises a wireless GPRS gateway module, a WiFi router and a ZigBee wireless unvarnished transmission module. The communication system is connected to a cloud service platform. The cloud service platform is connected with a government public information platform. A public information display is installed on the streetlamp body. The core controller is connected to a public security video monitoring system, a sky net monitoring system and a well lid monitoring managing system. By means of the city management intelligent streetlamp, the air humidity and temperature can be adjusted to a certain degree, the PM2.5 value in the air is reduced, the public information display is further arranged and can play government public information in real time, and due to the arranged public security video monitoring system and the interconnected sky net monitoring system and well lid monitoring managing system, good security work can be done.
Owner:江西中天景建设有限公司

Spinning printing and dyeing waste water reclamation method, device and application thereof

The invention discloses a spinning printing and dyeing waste water reclamation method, a device and the application thereof. The method comprises the steps of: filtering spinning printing and dyeing waste water; sequentially carrying out homogenizing, equalizing quantity and primary sedimentation on filtrate; adding sodium chloride into waste water supernate, and evenly mixing for indirect electro-catalysis oxidation; sequentially evenly mixing the waste water treated by indirect electro-catalysis oxidation with basic aluminium chloride and polyacrylamide; removing the precipitated supernate, and sequentially treating by activated carbon adsorption and reverse osmosis; removing trace organic chloride generated in the electrolytic process and the rest COD and color; and obtaining recyclable water resource. The device for realizing the method comprises a grate, a regulating reservoir, a sealed electrolytic cell, a flocculation tank, an inclined tube sedimentation tank, a sand filter tank, an active carbon filter, an intermediate water tank, a reverse osmosis unit, a clear water reservoir, a brine tank, a chlorine absorbing tank, a sludge concentration tank and a plate-and-frame filter press. The invention can effectively treat spinning printing and dyeing waste water, and has the advantages of high treatment efficiency, stable effluent quality, simple technological process and the like.
Owner:DONGGUAN HONGJIE ENVIRONMENTAL PROTECTION TECH +1
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