The invention relates to an exhaust gas treatment system which comprises a bag-type dust collector, a water washing device, a drying device and a catalytic combustion device which are sequentially connected through pipelines The water washing device comprises a washing tower, a circulating pump, a chemical feeding box and a chemical feeding pump, the washing tower comprises a tower body and a circulating liquid box arranged at the bottom of the tower body, at least one spraying component is arranged in the tower body and communicated with the circulating liquid box through the circulating pump, the circulating liquid box is communicated with the chemical feeding box through the chemical feeding pump, an adsorbing agent is arranged in the drying device and used for removing moisture in exhaust gas discharged from the washing tower, at least one catalyst bed layer is arranged in the catalytic combustion device along an exhaust gas flow direction, catalysts of the catalyst bed layers areCu-Mn-Ce composite catalysts, and the mole ratio of Cu, Mn to Ce in the Cu-Mn-Ce composite catalysts is (02-05):(05-08):1 According to the system, exhaust gas treatment effect can be greatly improved, and the degradation rate of ethyl acetate in the exhaust gas reaches 992%

Exhaust gas treatment system

Disclosed is an assembly of an oxygen-aluminum co-production electrolysis or carbon-free aluminum electrolysis wettable cathode material. The present invention particularly relates to the use as a so-called "inert" or "wettable" electrode structure for oxygen-aluminum co-production electrolysis. The oxygen-aluminum co-production or non-carbon anode aluminum electrolytic cell is composed of an electrolytic cell hearth, a cathode conductive base (7), a liquid aluminum tank and a high-temperature molten salt. Vertical non-carbon anodes (1) and vertical cathodes (2) are arranged at intervals, and the anodes (1) and the cathodes (2) can be continuously arranged at intervals until a desired volume is obtained. The high-temperature molten salt is an NaF-KF-CaF2-MgF2-LiF-AlF3-Al2O3 melt at 750-950°C. The cathode (2) is composed of a TiB2-based material, and a cell (3) is a TiB2-based, carbon-based or graphite-based material. The cathode (2) is vertically mounted on the cathode conductive base (7). The surface of the cathode conductive base (7) is protected by using a TiB2-C coating, casting with a high aluminium oxide amorphous material, an SiC/Si3N4 coating, etc., so as to reduce expansions caused by the permeation of Na and K and the formation of an intercalation compound from carbon in the conductive base (7), which expansions may cause the base to crack, thus affecting the stability and lifespan of a plate block of the cathode (2).

Electrode structure for oxygen and aluminum co-production electrolysis

The invention discloses an atmospheric emission control monitoring system and method. After the air quality before and after control is detected by an air detector I and an air detector II, the air quality is transmitted to terminal display equipment by a data transmission processor for real-time display and analysis; the bottom end of a control tower is connected with an air intake pipe; the other end of the air intake pipe is connected with an induced draft fan; after the entering the control tower, the air flows through a dust collection net, a spray pipe II, a PH regulator adhesion layer,a spray pipe II and an activated carbon adsorption net I in turn from bottom to top; a water suction pump on an inner side of a water storage chamber is connected with a main water outlet pipe; both the spray pipe II and the spray pipe I are communicated with the main water outlet pipe; and the top end of the control tower is connected with a U-shaped air outlet pipe. The control structure is simple and effective. The systematic collects and sorts data, and analyzes the environmental conditions in order to fulfill the aim of improving the local environmental quality.

Atmospheric emission control monitoring system and method

The invention discloses a method for recycling waste acid liquor. The method comprises the following steps: 1) sedimentation treatment, namely introducing the waste acid liquor into a sedimentation basin, separating oil spill by virtue of the effect of the sedimentation basin, and enabling oxide scale to sink to the bottom of the sedimentation basin; 2) acid separation by a blocking process, namely enabling the waste acid liquor without oil spill and oxide scale to enter a blocking process acid separator, temporarily retaining the residual acid with a special filler, discharging wastewater containing nitrate and fluoride, taking out the residual acid retained on the filler with clean backwash water, and completing the acid-iron separation process; 3) impurity removal treatment, namely further removing the iron ion with an ion exchange resin, and treating with regenerated liquid after adsorption and saturation of the ion exchange resin so as to obtain the regenerated acid; and 4) wastewater treatment, namely enabling the acid separation wastewater and the regenerated wastewater of the ion exchange resin to enter a wastewater pool in the enterprise, and treating with the washing wastewater. According to the method disclosed by the invention, the usage amount of waste acid neutralized lime can be reduced, the amount of hazardous solid wastes can be reduced, the degree of automation is high, attendance of a specially-assigned person is not needed, and the manual management cost is reduced.

Method for recycling waste acid liquor

The invention discloses an edible water heavy metal purification device based on a zeolite molecular sieve membrane. A secondary water storage baffle is fixedly connected to the lower part of a dedusting filter screen in an impurity removal chamber. The right side of the impurity removal chamber is fixedly connected to a primary purification chamber. A water amount measuring rod passes through thetop of the primary purification chamber. The right side outside the primary purification chamber and close to the upper part is fixedly connected to an ion adsorption chamber. An exchange resin filling mechanism is fixedly connected to the right side of a communication tube in the ion adsorption chamber. A zeolite molecular sieve membrane is fixedly connected to the lower part of the exchange resin filling mechanism in the ion adsorption chamber. The invention also relates to the technical field of zeolite molecular sieve membranes. The edible water heavy metal purification device based on the zeolite molecular sieve membrane reduces the content of heavy metals in the domestic edible water, improves the safety of the drinking water, facilitates the removal of the purified water filter residues, prevents the inconvenience caused by disassembly and cleaning and reduces the cleaning cost.

Edible water heavy metal purification device based on zeolite molecular sieve membrane

The invention discloses a waste gas treatment system which comprises a spray tower, an activated carbon adsorption box connected with the output end of the top of the spray tower and a catalytic oxidation tower connected with the output end of the activated carbon adsorption box The waste gas treatment system comprises the following steps that (A) waste gas is pumped into a spray tower through a fan, a PH regulator is added into the spray tower to keep a PH valve in the spray tower to be 6-9; (B) the waste gas subjected to the step (A) flows into an activated carbon adsorption box from the top of the spray tower to adsorb peculiar smell in the waste gas; (C) the waste gas subjected to the step (B) flows into a catalytic oxidation tower to remove OH free radicals through reaction and enables clean air to be discharged out of the catalytic oxidation tower and discharge clean water from the bottom of the catalytic oxidation tower, and waste gas treatment is completed When the waste gas treatment system is used, the dosage is greatly decreased, accordingly secondary pollution is reduced, the energy consumption and cost are effectively reduced, meanwhile absolutely clean air and clean water are discharged out of the system, and the waste gas treatment system is good in applicability and practicability

Waste gas treatment system

The utility model discloses an electroplate online recovery unit of copper -containing waste water, including filter and processing receptacle, the bottom of filter is connected with the elevator pump through the waste liquid admission pipe, the top of filter is linked together through the conduction pipe with processing receptacle's bottom, be equipped with pure water discharging tube at processing receptacle's top, it is protruding to be equipped with the card on processing receptacle's inner wall, be equipped with the spout on processing receptacle's inner wall, the spout is from top downwardly extending to blocking protruding up end, top at processing receptacle is equipped with the through -hole, be equipped with the sealing plug in the through -hole, be equipped with filler installing frame rack in processing receptacle, be equipped with the pulley with spout matched with on the lateral wall of filler installing frame rack, it packs to be equipped with phenylol spherical resin group in filler installing frame rack, top at filler installing frame rack is equipped with flexible pull rod. The utility model has the advantages of simple structure, the stability in use is good, and the secondary pollution that has significantly reduced has improved the treatment effeciency, has reduced treatment cost, and the suitability is good, and the practicality is strong.

Electroplate online recovery unit of copper -containing waste water

The utility model discloses a heavy metal diaphragm electrolysis recovery unit, including the PP electrolysis trough, be equipped with two at least U type ceramic membrane frames in the PP electrolysis trough, be equipped with the negative pole in the clearance between adjacent U type ceramic membrane frame, be equipped with the positive pole in U type ceramic membrane frame, be equipped with the range adjustment guide rail on the diapire of PP electrolysis trough, the bottom of U type ceramic membrane frame be equipped with with range adjustment guide rail matched with apart from adjustment poles, be equipped with the spacing pole that supports of pottery between the inboard of positive pole and U type ceramic membrane frame, be equipped with the thru hole on the vertical wall of U type ceramic membrane frame, be equipped with the regulation actuating lever between the tip apart from adjustment poles and range adjustment guide rail. The utility model has the advantages of simple structure to the treatment effeciency is improved, not only the cost can be practiced thrift but also reduce the processing expense, the sustainable cyclic utilization of water resource, the good practicality of suitability is strong.

Heavy metal diaphragm electrolysis recovery unit

The utility model discloses an electroplate heavy metal wastewater metallization recovery unit, including the PP groove the PP inslot is equipped with two at least U type ceramic membrane frames be equipped with the negative pole in the clearance between the adjacent U type ceramic membrane frame be equipped with the positive pole in the U type ceramic membrane frame be equipped with the thru hole on the vertical wall of U type ceramic membrane frame be equipped with dilute sulfuric acid electrolyte in the U type ceramic membrane frame. The utility model has the advantages of simple structure, adopt U type ceramic membrane frame, the electron migration disturbs lowly and can reach quick sedimentary purpose in the electrolytic process, can obtain more net metal atom on the negative pole, and the metal atom state can be got back to the coating bath and use, not only can practice thrift the cost but also reduce the processing expense, the sustainable cyclic utilization of water resource, and the good practicality of suitability is strong.

Electroplate heavy metal wastewater metallization recovery unit

The utility model discloses an online recovery unit of industry spent acid, the device comprises a device body, top at the device body is equipped with pure water admission pipe and useless water discharging tube, be equipped with spent acid admission pipe and pure sour discharge pipe in the bottom of device body, top surface and bottom surface at the device body all are equipped with the clamp plate, be equipped with unfamiliar net between clamp plate and device body, the clamp plate passes through fixing bolt to be fixed on the device body, at this internal retardant filler of acid that is equipped with of device, it contains sour waste water elevator pump to be equipped with in the outside of device body, it is connected with the spent acid admission pipe to contain sour waste water elevator pump. The utility model has the advantages of simple structure, the stability in use is good, and powerful chelation can block the acid radical in between the resin when containing sour waste water through the resin group, reaches and separates the purpose with the acidic water, has improved the treatment effeciency greatly and need not add the medicine, so can not cause secondary pollution, the stability in use is good, and the strong practicality of suitability is good.

Pu Jianchang

Papers

Waste gas treatment system

Electroplate online recovery unit of copper -containing waste water

Heavy metal diaphragm electrolysis recovery unit

Electroplate heavy metal wastewater metallization recovery unit

Online recovery unit of industry spent acid