CN212025042U - System for treating water in water tank of printing plant and enabling CTP (computer to plate) flushing water to reach discharge standard - Google Patents
System for treating water in water tank of printing plant and enabling CTP (computer to plate) flushing water to reach discharge standard Download PDFInfo
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- CN212025042U CN212025042U CN202020449974.9U CN202020449974U CN212025042U CN 212025042 U CN212025042 U CN 212025042U CN 202020449974 U CN202020449974 U CN 202020449974U CN 212025042 U CN212025042 U CN 212025042U
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Abstract
The utility model relates to a system and technology for handling printing factory water tank water, CTP towards version water and reach emission standard, the system including flocculation reaction tank, first filtration equipment, electric flocculation equipment, second filtration equipment, electro-catalysis equipment and RO reverse osmosis equipment that connect gradually. The process the utility model discloses a water tank water that system and technology were handled can effectual impurity removal, can not introduce new impurity, through reverse osmosis membrane, effectively gets rid of the impurity of a large amount of interfuses aquatic such as industrial pollutant, heavy metal, bacterium, virus, can accord with surface water emission standard completely, and automatic/manual control can be realized to whole processing system, ensures that equipment operation is stable, reliable.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, specificly relate to a system and technology for handling printing factory water tank water, CTP towards version water and reach emission standard.
Background
The printing machine can produce a large amount of heats at the during operation, if untimely effluvium will lead to the fact the harm to the printing machine, the radiating mode of the heat that produces is for communicating printing machine and water tank in the printing machine work at present, the mixed solution in the water tank enters into the printing machine through the inlet tube, contact through mixed solution and printing machine carries out the heat exchange, in order to cool down to the printing machine, on the other hand mixed solution is the printing machine and realizes the essential raw materials of printing function, promptly at the printing in-process, for reaching the balanced multiple liquid mixed water that uses of good water ink, its principal ingredients are: demineralized water, isopropanol, fountain solution (MSDS) and small amounts of ink, paper dust and other impurities mixed in during printing.
Along with the continuous progress of printing work, the water in the water tank is constantly recycled, a large amount of impurities are inevitably generated after a period of time, and if the water is not cleaned, the printing effect is greatly influenced.
CTP plate flushing water is waste water generated by flushing a photosensitive layer on a non-image-text part and CTP developing solution remained on a plate surface with a large amount of clean water in the process of manufacturing a printing plate by a CTP (direct plate-making machine) in a printing factory. The main components of the wastewater comprise: tap water, gum arabic, a CTP photosensitive layer (trace of nitrogen oxides, sulfur sulfonates), and a small amount of CTP developer (MSDS).
Both the water tank and the CTP flushing water have a large amount of substances harmful to the environment, soil and the like, so that effective treatment is required before discharge. At present, the treatment modes of water tank water and CTP plate flushing water mainly adopt simple flocculation treatment. However, the simple flocculation treatment can not meet the sewage discharge requirement at all.
In view of this, the utility model is especially provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem that prior art exists, the utility model provides a system and technology for handling printing factory water tank water, CTP dash version water and reach emission standard, process the utility model discloses a water tank water that system and technology were handled and CTP dash the mixture of version water can effectually get rid of impurity, can not introduce new impurity, can keep apart impurity such as pollutant, heavy metal are whole, can accord with surface water emission standard completely.
The utility model aims at providing a system for be used for handling printing factory water tank water, CTP towards version water and reach emission standard.
The utility model discloses a still another purpose provides above-mentioned system and is used for handling the technology that printing factory's water tank water, CTP towards version water reach emission standard.
According to the utility model discloses a system for be used for handling printing factory water tank water, CTP towards version water and reach emission standard, the system including flocculation reaction tank, first filtration equipment, electric flocculation equipment, second filtration equipment, electro-catalysis equipment and the RO reverse osmosis equipment that connects gradually.
The system for treating water tank water and CTP plate flushing water of a printing plant according to the specific embodiment of the utility model reaches the discharge standard, wherein a stirring device is fixedly arranged in the flocculation reaction tank; the flocculation reaction tank is connected with the first filtering equipment through a sewage pump.
According to the utility model discloses a system for treating printing factory water tank water, CTP towards version water and reach emission standard, wherein, the negative pole and the positive pole of electric flocculation equipment are aluminum plate.
According to the utility model discloses a system for handling printing mill water tank water, CTP towards version water and reach emission standard, wherein, the electro-catalysis equipment all includes positive pole, negative pole and the electro-catalysis oxidation filler of filling between the two.
The electrocatalytic equipment adopted in the sewage treatment system comprises an anode (carbon plate), a cathode (carbon plate) and an electrocatalytic oxidation filler filled between the anode and the cathode as shown in patent CN 110734114A. The structure is that on the basis of three-dimensional electrolysis, an electrocatalytic oxidation filler is used for replacing a three-dimensional electrode, and the method is a novel catalytic oxidation technology.
According to the utility model discloses a system for treating printing mill water tank water, CTP towards version water and reach emission standard, wherein, the positive pole with cathode material is the carbon plate.
According to the utility model discloses a system for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, first filtration equipment with the filter fineness of second filtration equipment is 30 μm.
According to the utility model discloses a system for be used for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, the catalysis voltage of electro-catalysis equipment is 20 ~ 30V, and the catalysis electric current is 700 ~ 900A.
According to the utility model discloses a specific embodiment's a technology for handling printing factory water tank water, CTP towards version water and reach emission standard, the technology as follows: in going into the flocculation reaction pond with mixed liquid pump that printing factory water tank water and CTP towards version water, the sewage pump after the flocculation reaction goes into first filtration equipment, and the sewage after the filtration gets into the electric flocculation equipment, filters once more through second filtration equipment after the electric flocculation precipitation, and exhaust sewage gets into the electro-catalysis equipment and carries out electrochemical treatment, and the sewage after the process is handled gets into RO reverse osmosis equipment, and the water after the reverse osmosis treatment reaches emission standard.
According to the utility model discloses a process for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, flocculation reaction tank in add the flocculating agent and carry out flocculation reaction, the addition of flocculating agent is 800 ~ 1200g/t, stirs in succession in the reaction sequence, and the sediment of stewing after the reaction is finished 3 ~ 7 min.
According to the utility model discloses a process for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, the voltage of electric flocculation equipment is 20 ~ 30V, and the electric current is 700 ~ 900A, and the electric flocculation time is 50 ~ 70 min.
According to the utility model discloses a process for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, the catalysis voltage of electro-catalysis equipment is 20 ~ 30V, and the catalysis electric current is 700 ~ 900A, and the catalysis time is 50 ~ 70 min.
According to the utility model discloses a specific embodiment's a technology for handling printing factory water tank water, CTP towards version water and reach emission standard, wherein, first filtration equipmentThe filtration precision and the flow rate of the second filtration equipment are both 30 mu m and 0.2-0.4m3And/h, the pressure difference between the inlet and the outlet is 2-3 bar.
The filter cores adopted by the first filtering equipment and the second filtering equipment are woolen yarn filter cores.
The flocculating agent added into the flocculation reaction tank takes polyaluminium chloride as a main raw material, and a manufacturer is Hebei Liuyang environmental protection science and technology limited company. And adding a flocculating agent into the flocculation tank through a flocculating agent adding device for reaction.
Furthermore, all the devices in the system are connected through a pump.
The utility model discloses well last equipment is handled the water that produces and is gone into next equipment in proper order and handle.
Further, the RO reverse osmosis device is vertically arranged.
Therefore, the length of the filter membrane can be increased, the space occupation can be reduced to a certain extent, and the filter membrane is easy to move.
The stability of the water source to be treated is a main factor for ensuring the sewage treatment effect. The utility model discloses in, for guaranteeing the stability at pending water source, water tank water and CTP towards version water pump to flocculation reaction pond (pos.1) according to quantitative ratio's mode to add flocculating agent (pos.2) in to the reaction pond and carry out flocculation reaction. After fully stirring and standing, flocculation reaction occurs to separate solid from liquid.
The sewage after flocculation reaction is pumped to a filtering device (pos.3) to directly filter out impurities and sediments generated by flocculation reaction.
The filtered sewage is directly pumped into an electric flocculation treatment device (pos.4) for electric flocculation treatment.
Electrocoagulation is also known as electrocoagulation, electrocoagulation. Aluminum metal is used as an anode, and the anode is dissolved under the action of direct current to generate a large amount of Al ions. The hydrogen ions are reduced at the cathode plate to produce hydroxide ions. After a series of hydrolysis and polymerization of metal ions and hydroxide ions, various hydroxyl complexes, polynuclear hydroxyl complexes and hydroxides are generated, so that colloidal impurities and suspended impurities in the wastewater are coagulated, precipitated and separated. Meanwhile, the charged pollutant particles swim in the electric field, and part of charges of the pollutant particles are neutralized by the electrodes to promote destabilization and coagulation.
The metal consumption of the electric flocculation electrode is low, the sludge yield is low, and no chemical agent is needed to be added in the reaction process, so that secondary pollution is not easy to occur.
And (3) the sewage after the electric flocculation treatment enters a second filtering device (pos.5) to filter precipitates generated by the electric flocculation, so that preparation is made for the electric catalysis treatment in the next link.
The sewage filtered by the second filtering device enters an electro-catalytic device (pos.6) for electro-catalytic treatment. Electrocatalysis is a novel sewage treatment process for carrying out electrochemical treatment on sewage and effectively removing COD.
Electrocatalysis is the formation of OH groups with strong oxidation properties by anodic oxidation or anodic reaction. The OH group is not selective in oxidizing pollutants, and directly oxidizes organic matters into CO2、H2O or mineral salt, the purpose of destroying harmful substances is realized, and no new environmental pollution is caused. The OH group is an intermediate product of the catalytic oxidation process, which acts as an initiator to induce chain reactions. Is especially suitable for biodegradation of organic matters.
The electro-catalyzed sewage enters RO reverse osmosis equipment (pos.7). The RO reverse osmosis is to pressurize the catalyzed clean water by a pump, and effectively isolate a large amount of impurities mixed into the water, such as industrial pollutants, heavy metals, bacteria, viruses and the like, by a reverse osmosis membrane, so that the physical and chemical indexes and the sanitary standard specified for drinking are achieved, and the clean water is produced.
The COD of the clear water treated by the RO reverse osmosis equipment is less than or equal to 10mg/L, and the clear water can reach the standard for discharge or recycling.
Through detection: COD (chemical oxygen demand) of the mixed liquid of the water tank water and the CTP (computer to plate) flushing water is generally 10000 mg/L; adding a flocculating agent and filtering to obtain COD (chemical oxygen demand) less than or equal to 5000 mg/L; after electrocoagulation and filtration, COD is less than or equal to 3000 mg/L; COD is less than or equal to 500mg/L after electrocatalysis treatment for one hour; COD after filtration of the RO reverse osmosis membrane is less than or equal to 10mg/L, and can completely meet the discharge standard of surface water.
The whole processing system can realize automatic/manual control. The equipment is ensured to operate stably and reliably.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the water tank water and CTP plate flushing water treated by the system and the process of the utility model can effectively remove impurities, and simultaneously can not introduce new impurities, and the impurities mixed in a large amount of water such as industrial pollutants, heavy metals, bacteria, viruses and the like can be effectively removed by reverse osmosis membrane treatment, so that the physical and chemical indexes and the sanitary standard specified for drinking are reached, the water is produced to be clear to pure, the whole treatment system can realize automatic/manual control, and the stable and reliable operation of equipment is ensured;
(2) the utility model discloses the COD that well water tank water and CTP of handling towards version water stoste is about 10000mg/L, the utility model discloses a water tank water with CTP towards version water after the processing of each equipment, clear water COD after RO reverse osmosis equipment handles is less than or equal to 10mg/L, can reach standard emission or recycle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flow chart of a system for treating printing plant tank water and CTP plate flushing water to reach the discharge standard of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In some more specific embodiments, the system comprises a flocculation reaction tank, a first filtering device, an electric flocculation device, a second filtering device, an electric catalysis device and an RO reverse osmosis device which are connected in sequence. The cathode and the anode of the electric flocculation equipment are both aluminum plates. The anode and cathode materials of the electro-catalytic equipment are carbon plates;
the process for treating the water of the water tank and the CTP plate flushing water of the printing plant to reach the discharge standard comprises the following steps: in going into the flocculation reaction pond with mixed liquid pump that printing factory water tank water and CTP towards version water, the sewage pump after the flocculation reaction goes into first filtration equipment, and the sewage after the filtration gets into the electric flocculation equipment, filters once more through second filtration equipment after the electric flocculation precipitation, and exhaust sewage gets into the electro-catalysis equipment and carries out electrochemical treatment, and the sewage after the process is handled gets into RO reverse osmosis equipment, and the water after the reverse osmosis treatment reaches emission standard.
In a more specific embodiment, the system comprises a flocculation reaction tank, a first filtering device, an electric flocculation device, a second filtering device, an electrocatalysis device and an RO reverse osmosis device which are connected in sequence. The cathode and the anode of the electric flocculation equipment are both aluminum plates. The anode and cathode materials of the electro-catalytic equipment are carbon plates;
the process for treating the water of the water tank and the CTP plate flushing water of the printing plant to reach the discharge standard comprises the following steps: in going into the flocculation reaction pond with mixed liquid pump that printing factory water tank water and CTP towards version water, the sewage pump after the flocculation reaction goes into first filtration equipment, and the sewage after the filtration gets into the electric flocculation equipment, filters once more through second filtration equipment after the electric flocculation precipitation, and exhaust sewage gets into the electro-catalysis equipment and carries out electrochemical treatment, and the sewage after the process is handled gets into RO reverse osmosis equipment, and the water after the reverse osmosis treatment reaches emission standard. Adding a flocculating agent into the flocculation reaction tank for flocculation reaction, wherein the adding amount of the flocculating agent is 800-1200 g/t, continuously stirring in the reaction process, and standing and precipitating for 3-7 min after the reaction is finished;
the voltage of the electric flocculation equipment is 20-30V, the current is 700-900A, and the electric flocculation time is 50-70 min;
the electro-catalysis equipment has the catalysis voltage of 20-30V, the catalysis current of 700-900A and the catalysis time of 50-70 min.
Example 1
As shown in fig. 1, the system for treating printing plant tank water and CTP flushing water to reach the discharge standard of the present embodiment includes a flocculation reaction tank, a first filtering device, an electric flocculation device, a second filtering device, an electro-catalysis device and an RO reverse osmosis device, which are connected in sequence; stirring equipment is fixedly arranged in the flocculation reaction tank; the flocculation reaction tank is connected with the first filtering equipment through a sewage pump; the cathode and the anode of the electric flocculation equipment are both aluminum plates; the electrocatalytic devices respectively comprise an anode, a cathode and an electrocatalytic oxidation filler filled between the anode and the cathode; the electrocatalytic equipment adopted in the sewage treatment system comprises an anode (carbon plate), a cathode (carbon plate) and an electrocatalytic oxidation filler filled between the anode and the cathode as shown in patent CN 110734114A. The structure is that on the basis of three-dimensional electrolysis, an electrocatalytic oxidation filler is used for replacing a three-dimensional electrode, and the method is a novel catalytic oxidation technology; the anode and the cathode are made of carbon plates; first filtration equipment and second filtration equipment constitute by two parallelly connected lauter tuns, can automatic reversing through two parallelly connected lauter tuns, when pressure detection equipment detected the pressure in one of them lauter tun when too high, need change the filter media promptly, the system can be automatically switched rivers from a bucket to another bucket in filter, automatic alarm device can indicate operating personnel to change the filter media in the bucket simultaneously.
The process for treating the water of the water tank and the CTP plate flushing water of the printing plant to reach the discharge standard comprises the following steps: pumping a mixed solution of water in a water tank of a printing plant and CTP printing plate flushing water into a flocculation reaction tank, pumping sewage subjected to flocculation reaction into first filtering equipment, feeding the filtered sewage into electric flocculation equipment, performing electric flocculation precipitation, then performing secondary filtering through second filtering equipment, feeding the discharged sewage into electro-catalysis equipment for electrochemical treatment, feeding the treated sewage into RO reverse osmosis equipment, and enabling the water subjected to reverse osmosis treatment to reach the discharge standard;adding a flocculating agent into the flocculation reaction tank for flocculation reaction, wherein the adding amount of the flocculating agent is 1200g/t, continuously stirring in the reaction process, and standing and precipitating for 7min after the reaction is finished; the voltage of the electric flocculation equipment is 30V, the current is 700A, and the electric flocculation time is 70 min; the catalysis voltage of the electro-catalysis equipment is 20V, the catalysis current is 700A, and the catalysis time is 70 min; the filtering precision of the first filtering device and the second filtering device is 30 mu m, and the flow rate is 0.2m3The pressure difference between the inlet and the outlet is 3 bar; the flocculating agent added into the flocculation reaction tank takes polyaluminium chloride as a main raw material, and a manufacturer is Hebei Liuyang environmental protection science and technology limited company. Adding a flocculating agent into the flocculation tank through flocculating agent adding equipment for reaction; all the devices in the system are connected through a pump; water generated by the treatment of the previous equipment is sequentially pumped into the next equipment for treatment; the RO reverse osmosis equipment is vertically arranged, so that the length of the filter membrane can be increased, the space occupation can be reduced to a certain extent, and the RO reverse osmosis equipment is easy to move.
Example 2
As shown in fig. 1, the system for treating printing plant tank water and CTP flushing water to reach the discharge standard of the present embodiment includes a flocculation reaction tank, a first filtering device, an electric flocculation device, a second filtering device, an electro-catalysis device and an RO reverse osmosis device, which are connected in sequence; stirring equipment is fixedly arranged in the flocculation reaction tank; the flocculation reaction tank is connected with the first filtering equipment through a sewage pump; the cathode and the anode of the electric flocculation equipment are both aluminum plates; the electrocatalytic devices respectively comprise an anode, a cathode and an electrocatalytic oxidation filler filled between the anode and the cathode; the electrocatalytic equipment adopted in the sewage treatment system comprises an anode (carbon plate), a cathode (carbon plate) and an electrocatalytic oxidation filler filled between the anode and the cathode.
The process for treating the water of the water tank and the CTP plate flushing water of the printing plant to reach the discharge standard comprises the following steps: mix the liquid pump income flocculation reaction pond with printing factory water tank water and CTP towards version water in, the sewage pump income first filtration equipment after the flocculation reaction, sewage after the filtration gets into the electric flocculation and establishesAfter the electric flocculation precipitation, the sewage is filtered again by a second filtering device, the discharged sewage enters an electro-catalysis device for electrochemical treatment, the treated sewage enters an RO reverse osmosis device, and the water after the reverse osmosis treatment reaches the discharge standard; adding a flocculating agent into the flocculation reaction tank for flocculation reaction, wherein the adding amount of the flocculating agent is 1000g/t, continuously stirring in the reaction process, and standing and precipitating for 5min after the reaction is finished; the voltage of the electric flocculation equipment is 25V, the current is 800A, and the electric flocculation time is 60 min; the catalysis voltage of the electro-catalysis equipment is 25V, the catalysis current is 800A, and the catalysis time is 60 min; the filtering precision of the first filtering device and the second filtering device is 30 mu m, and the flow rate is 0.3m3The pressure difference between the inlet and the outlet is 2.5 bar; and a flocculating agent is added into the flocculation reaction tank.
More specifically, in this embodiment, to ensure the stability of the water source to be treated, the water tank water and the CTP flushing water are pumped into the flocculation reaction tank (pos.1) according to the volume ratio of 5:3, and a flocculating agent (pos.2) is added into the reaction tank to perform flocculation reaction. After fully stirring and standing, flocculation reaction occurs to separate solid from liquid.
The sewage after flocculation reaction is pumped to a filtering device (pos.3) to directly filter out impurities and sediments generated by flocculation reaction.
The filtered sewage is directly pumped into an electric flocculation treatment device (pos.4) for electric flocculation treatment.
Electrocoagulation is also known as electrocoagulation, electrocoagulation. Aluminum metal is used as an anode, and the anode is dissolved under the action of direct current to generate a large amount of Al ions. The hydrogen ions are reduced at the cathode plate to produce hydroxide ions. After a series of hydrolysis and polymerization of metal ions and hydroxide ions, various hydroxyl complexes, polynuclear hydroxyl complexes and hydroxides are generated, so that colloidal impurities and suspended impurities in the wastewater are coagulated, precipitated and separated. Meanwhile, the charged pollutant particles swim in the electric field, and part of charges of the pollutant particles are neutralized by the electrodes to promote destabilization and coagulation.
The metal consumption of the electric flocculation electrode is low, the sludge yield is low, and no chemical agent is needed to be added in the reaction process, so that secondary pollution is not easy to occur.
And (3) the sewage after the electric flocculation treatment enters a second filtering device (pos.5) to filter precipitates generated by the electric flocculation, so that preparation is made for the electric catalysis treatment in the next link.
The sewage filtered by the second filtering device enters an electro-catalytic device (pos.6) for electro-catalytic treatment. Electrocatalysis is a novel sewage treatment process for carrying out electrochemical treatment on sewage and effectively removing COD.
Electrocatalysis is the formation of OH groups with strong oxidation properties by anodic oxidation or anodic reaction. The OH group is not selective in oxidizing pollutants, and directly oxidizes organic matters into CO2、H2O or mineral salt, the purpose of destroying harmful substances is realized, and no new environmental pollution is caused. The OH group is an intermediate product of the catalytic oxidation process, which acts as an initiator to induce chain reactions. Is especially suitable for biodegradation of organic matters.
The electro-catalyzed sewage enters RO reverse osmosis equipment (pos.7). The RO reverse osmosis is to pressurize the catalyzed clean water by a pump, and effectively isolate a large amount of impurities mixed into the water, such as industrial pollutants, heavy metals, bacteria, viruses and the like, by a reverse osmosis membrane, so that the physical and chemical indexes and the sanitary standard specified for drinking are achieved, and the clean water is produced.
The catalyst in the electrocatalytic treatment device in the embodiment adopts the existing raw material, and the catalyst is shown in patent ZL 200710061391.8.
In the RO reverse osmosis apparatus in this example, the RO reverse osmosis membrane was made of Dongli brand and the treatment amount was 0.3m3H is used as the reference value. The RO reverse osmosis equipment is used for pressurizing the catalyzed clean water through a pump, and effectively removing a large amount of impurities mixed into the water, such as industrial pollutants, heavy metals, bacteria, viruses and the like, through a reverse osmosis membrane, so that the physical and chemical indexes and the sanitary standard specified for drinking are achieved, and the clean water is produced.
The utility model discloses a processing standard:
through the utility model discloses a system and technology treatment water tank water and CTP towards version water, clear water COD after RO reverse osmosis equipment handles is less than or equal to 10mg/L, can reach standard emission or recycle.
The water before and after treatment in examples 1 and 2 was tested and the results are shown in Table 1 below:
TABLE 1 Water quality test results before and after treatment
From table 1, can see, the utility model discloses a system and technology can be used to handle water tank water and the mixed water that the CTP washed the version water, through the utility model discloses a water after system and technology are handled can reach and drink specified physics and chemistry index and sanitary standard.
Through to embodiment 1 and embodiment 2 and adopt the utility model discloses a system and process detect the water in the other experimental examples processing procedure that handle: after the two liquids of the water tank and the CTP plate flushing water are mixed, the COD is 9000-11000 mg/L; adding a flocculating agent and filtering to obtain COD (chemical oxygen demand) less than or equal to 5000 mg/L; after electrocoagulation and filtration, COD is less than or equal to 3000 mg/L; COD is less than or equal to 500mg/L after electrocatalysis treatment for one hour; COD after filtration of the RO reverse osmosis membrane is less than or equal to 10mg/L, and can completely meet the discharge standard of surface water.
The whole processing system can realize automatic/manual control. The equipment is ensured to operate stably and reliably.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a system for be used for handling printing factory water tank water, CTP towards version water and reach discharge standard, its characterized in that, the system including the flocculation reaction pond, first filtration equipment, electric flocculation equipment, second filtration equipment, electro-catalysis equipment and the RO reverse osmosis equipment that connect gradually.
2. The system for treating printing plant tank water and CTP flushing water to reach the discharge standard according to claim 1, wherein a stirring device is fixedly arranged in the flocculation reaction tank.
3. The system as claimed in claim 1, wherein the flocculation reaction tank is connected to the first filtering device via a sewage pump.
4. The system for treating printing plant tank water and CTP flushing water to reach the discharge standard according to claim 1, wherein the cathode and the anode of the electric flocculation device are both aluminum plates.
5. The system for treating printing plant tank water, CTP flushing water to emission standards according to claim 1, wherein the electrocatalytic devices each comprise an anode, a cathode and an electrocatalytic oxidation filler filled therebetween.
6. The system of claim 1, wherein said anode and said cathode are both carbon plates.
7. The system for treating printing plant tank water and CTP flushing water to reach the discharge standard according to claim 1, wherein the filtration precision of the first filtration device and the second filtration device is 30 μm.
8. The system of claim 1 wherein said RO reverse osmosis unit is vertically positioned for treating printing plant tank water, CTP flush water to discharge standards.
9. The system for treating water in a water tank of a printing plant and CTP (computer to plate) flushing water reaching the emission standard according to claim 1, wherein the electro-catalytic device has a catalytic voltage of 20-30V and a catalytic current of 700-900A.
10. The system for treating printing plant water tank water and CTP printing plate flushing water to reach the discharge standard according to claim 1, wherein the voltage of the electric flocculation equipment is 20-30V, and the current is 700-900A.
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| CN111320313A (en) * | 2020-03-31 | 2020-06-23 | 埃尔博工业设备(北京)有限公司 | System and process for treating water in water tank of printing plant and CTP printing plate flushing water to reach discharge standard |
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Cited By (1)
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| CN111320313A (en) * | 2020-03-31 | 2020-06-23 | 埃尔博工业设备(北京)有限公司 | System and process for treating water in water tank of printing plant and CTP printing plate flushing water to reach discharge standard |
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