CN210711170U - Full-factor standard-reaching optimization process system for electroplating wastewater - Google Patents
Full-factor standard-reaching optimization process system for electroplating wastewater Download PDFInfo
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- CN210711170U CN210711170U CN201921471524.3U CN201921471524U CN210711170U CN 210711170 U CN210711170 U CN 210711170U CN 201921471524 U CN201921471524 U CN 201921471524U CN 210711170 U CN210711170 U CN 210711170U
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Abstract
The utility model relates to an electroplating effluent full factor optimization process system up to standard, it includes two parts of materialization processing system and biochemical treatment system, and the materialization processing system divide into the broken cyanogen reaction process section, the heavy metal that communicate in proper order and get rid of one-level reaction process section, heavy metal and get rid of second grade reaction process section, tertiary reaction process section of advanced treatment and suspended solid removal process section. Various types of stirring reaction barrels of the cyanogen breaking reaction process section are positioned at the high position of wastewater treatment, and after the wastewater is lifted to the process section, the wastewater to be treated naturally flows to each process section under the action of gravity for corresponding treatment, and the process does not need to provide additional power for pumping water, so that the cyanogen breaking reaction process section is energy-saving and environment-friendly. The system has the advantages of high specialization degree, high mechanical equipment level, good treatment rate, high waste water reusability and lower operation cost.
Description
Technical Field
The utility model relates to a waste water treatment field, especially electroplating effluent full factor optimization process systems up to standard.
Background
At present, the electroplating wastewater treatment has the process problems of low specialization degree, low mechanical equipment level, insufficient effective treatment rate, high operation cost, low wastewater reuse rate and the like. With the implementation of the new standard of electroplating wastewater discharge, the discharge standard of pollutants in the electroplating industry is increasingly improved, and the traditional electroplating wastewater treatment technology cannot meet the stricter discharge requirement. The relevant research of deeply developing the full-factor standard-reaching optimization process test of electroplating wastewater treatment is particularly important.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an electroplating wastewater full factor optimization process systems up to standard that degree of specialization is high, mechanical equipment level is high, the treatment rate is good, but waste water reuse rate is high and running cost is lower.
The utility model discloses a realize above-mentioned purpose like this:
the full-factor standard-reaching optimization process system for the electroplating wastewater comprises a physicochemical treatment system and a biochemical treatment system, wherein the physicochemical treatment system is sequentially divided into a cyanogen breaking reaction process section, a primary reaction process section, a secondary reaction process section, an advanced treatment tertiary reaction process section and a suspended matter removal process section which are communicated, the cyanogen breaking reaction process section, the primary reaction process section, the secondary reaction process section and the advanced treatment tertiary reaction process section mainly comprise various stirring reaction barrels and sedimentation tanks, the suspended matter removal process section mainly comprises a filter, and the biochemical treatment system comprises a biochemical treatment process section which mainly comprises a biochemical reaction tank and a biochemical sedimentation tank; in the positions of the various stirring reaction barrels of the process sections, the cyanogen breaking reaction process section is higher than or equal to the primary reaction process section, the primary reaction process section is higher than the heavy metal removing secondary reaction process section, the secondary reaction process section is higher than the advanced treatment tertiary reaction process section, and the suspended matter removing process section and the biochemical treatment process section are positioned at the lowest positions of the process sections.
The device comprises a cyanide breaking reaction process section, a first stirring reaction barrel, a first-stage cyanide breaking barrel, a second-stage cyanide breaking barrel and an oxidation stripping barrel, wherein the first-stage cyanide breaking barrel, the second-stage cyanide breaking barrel, the oxidation stripping barrel and the first-stage reaction barrel are sequentially communicated, the various stirring reaction barrels of the first-stage reaction process section comprise a third PH regulating barrel, a fourth PH regulating barrel, a fifth PH regulating barrel, a sixth PH regulating barrel and a first-stage sedimentation tank, the first stirring reaction barrels, the seventh PH regulating barrel, the second-stage reaction barrel and the second-stage sedimentation tank are sequentially communicated, the first-stage sedimentation tank is positioned between the sixth PH regulating barrel and the first buffering barrel, the upper part of the sixth PH regulating barrel is communicated with a water inlet pipe on the upper part of a water inlet area of the first-stage sedimentation tank through a water conveying pipe, the water outlet of the water inlet pipe is arranged towards the direction, the water inlet area is communicated with a water distribution area of the sedimentation tank through a, The lower part is a cone-shaped mud settling area, the upper part of the inclined plate water passing area is a clear water area, the clear water area is provided with a water collecting tank, and the water collecting tank is communicated with the bottom of the buffer barrel through a water feeding pipe.
Wherein, all kinds of stirring reaction barrels of tertiary reaction technology section are including the buffer tank two that communicates in proper order, eight and tertiary reaction barrels of PH adjusting tank, tertiary coagulation bucket, tertiary flocculation bucket and tertiary sedimentation tank, the secondary sedimentation tank is located between secondary reaction barrel and the buffer tank two, the upper portion outlet pipe of secondary reaction barrel and the mixed zone intercommunication of secondary sedimentation tank, the water pipe that the mixed zone passes through the bottom communicates with the draft tube bottom in the flocculation zone, the flocculation zone passes through the delivery port of well lower part and the well upper portion intercommunication of sedimentation zone, the lower part of sedimentation zone is the cone mud settling zone, upper portion passes through swash plate passageway and clear water district intercommunication, clear water district upper portion is equipped with the water catch bowl, the water catch bowl passes through the bottom intercommunication of outlet pipe and buffer tank.
Wherein, the stirring devices of the three-stage coagulation barrel and the three-stage flocculation barrel are paddle type or frame type stirrers, and the stirring devices of the other reaction barrels are propulsion type or paddle type stirrers.
The filter that technology section was got rid of to the suspended solid is two, and the front end of filter is three for the buffering bucket, and tertiary sedimentation tank is located between three and the tertiary flocculation bucket of buffering bucket, and the inlet tube intercommunication on district upper portion is intake through flow pipe and tertiary sedimentation tank in the upper portion of tertiary flocculation bucket, and the delivery port orientation of inlet tube sets up, and the district of intaking is through the perforation of lower part and the water distribution district intercommunication of sedimentation tank, and water distribution district upper portion is the swash plate district of leading to water, and the lower part is the cone silt region, and the swash plate is the clear water district in district upper portion of leading to water, and the clear water district is equipped with the water catch bowl, and the water catch bowl passes.
The filter comprises two filters, a water inlet, a water outlet, a filter layer, a porous plate and a support, wherein the two filters are connected in parallel, the upper part of each filter is provided with the water inlet, the lower part of each filter is provided with the water outlet, the filter layer in each filter is divided into a smokeless coal layer, a quartz sand layer and a gravel layer, the filter layer is supported by the porous plate and the support at the lower part of the porous plate, a filter mechanism consisting of a filter cap, a sealing ring, a screw rod with a counter.
Wherein, the outlet conduit of the filter is connected with a compressed air conveying pipeline.
The biochemical reaction tank mainly comprises an anaerobic tank, an anoxic tank and an aerobic tank, wherein the bottom of the anaerobic tank is provided with a water inlet distribution pipe with a plurality of water outlet holes, the water inlet distribution pipe is communicated with a biochemical water inlet pipe and a sludge feeding pipe, the sludge feeding pipe is communicated with a biochemical sedimentation tank, the middle of the anaerobic tank is provided with a water inlet buffering fender and a buffering inclined plate, the upper part of the anaerobic tank is provided with a water outlet weir plate, an inner groove of the water outlet weir plate is communicated with the anoxic tank, the upper part of the anoxic tank is communicated with the aerobic tank, the bottom of the aerobic tank is provided with a sludge return pipe for conveying sludge to the upper part of the anoxic tank, the middle upper part of the aerobic tank is communicated with a guide cylinder in the biochemical sedimentation tank through a water pipe, the lower end of the guide cylinder is a trumpet-shaped outlet, the trumpet-shaped outlet is over against a reflecting plate.
Wherein, the bottom of each stirring reaction barrel is provided with a drain pipe communicated with the drainage ditch.
The utility model has the advantages that: the utility model discloses at first peel off the heavy metal of complex state completely out through broken cyanogen technology section, form the heavy metal precipitate in one-level reaction technology section, then discharge after the sedimentation of sedimentation tank. In order to ensure that the discharge of the heavy metal meets the standard requirement, the system also carries out reaction precipitation on the wastewater through a secondary reaction process section and a deep treatment tertiary reaction process section, so that the content of heavy metal ions is completely reduced to the minimum or no content, the subsequent suspended matter removal process section and biochemical treatment process section are convenient to work, the microorganism poisoning is prevented, the effective implementation of biochemical treatment is ensured, and all discharge indexes of the wastewater meet the standard requirement. The system is not only suitable for treating single heavy gold or other pollutant wastewater, but also more suitable for treating wastewater mixed by multiple heavy metals and multiple pollutants. In addition, as various types of stirring reaction barrels of the cyanogen breaking reaction process section are positioned at the high position of wastewater treatment, after the wastewater is lifted to the process section, the wastewater to be treated can naturally flow to each process section for corresponding treatment under the action of gravity, and the process does not need to provide additional power for pumping water, thereby saving energy and protecting environment. The system has the advantages of high specialization degree, high mechanical equipment level, good treatment rate, high waste water reusability and lower operation cost.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a view showing the overall flow structure of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is an enlarged view at D of FIG. 1;
FIG. 6 is a cross-sectional view taken at E-E of FIG. 3;
FIG. 7 is a block diagram of a filter;
FIG. 8 is an enlarged view at F of FIG. 7;
FIG. 9 is a structural view of a biochemical reaction tank and a biochemical precipitation tank;
FIG. 10 is a top view of the biochemical reaction chamber.
Detailed Description
Referring to fig. 1 to 5, the electroplating wastewater full-factor standard-reaching optimization process system comprises a physicochemical treatment system and a biochemical treatment system, wherein the physicochemical treatment system is sequentially divided into a cyanogen breaking reaction process section, a first-stage reaction process section, a second-stage reaction process section, a deep treatment third-stage reaction process section and a suspended matter removal process section which are communicated, and the cyanogen breaking reaction process section, the first-stage reaction process section, the second-stage reaction process section and the deep treatment third-stage reaction process section are mainly composed of various stirring reaction barrels and sedimentation tanks. The suspended matter removing process section mainly comprises a filter, and the biochemical treatment system comprises a biochemical treatment process section which mainly comprises a biochemical reaction tank and a biochemical sedimentation tank; in the positions of the various stirring reaction barrels of the process sections, the cyanogen breaking reaction process section is higher than or equal to the heavy metal removing first-stage reaction process section, the first-stage reaction process section is higher than the second-stage reaction process section, the second-stage reaction process section is higher than the advanced treatment third-stage reaction process section, and the suspended matter removing process section and the biochemical treatment process section are located at the lowest positions of the process sections. The utility model discloses at first peel off the heavy metal of complex state completely out through broken cyanogen technology section, form the heavy metal precipitate in one-level reaction technology section, then discharge after the sedimentation of sedimentation tank. In order to ensure that the discharge of the heavy metal meets the standard requirement, the system also carries out reaction precipitation on the wastewater through a secondary reaction process section and a deep treatment tertiary reaction process section, so that the content of heavy metal ions is completely reduced to the minimum or no content, the subsequent suspended matter removal process section and biochemical treatment process section are convenient to work, the microorganism poisoning is prevented, the effective implementation of biochemical treatment is ensured, and all discharge indexes of the wastewater meet the standard requirement. The system is not only suitable for treating single heavy gold or other pollutant wastewater, but also more suitable for treating wastewater mixed by multiple heavy metals and multiple pollutants. In addition, as various types of stirring reaction barrels of the cyanogen breaking reaction process section are positioned at the high position of wastewater treatment, after the wastewater is lifted to the process section, the wastewater to be treated can naturally flow to each process section for corresponding treatment under the action of gravity, and the process does not need to provide additional power for pumping water, thereby saving energy and protecting environment. The system has the advantages of high specialization degree, high mechanical equipment level, good treatment rate, high waste water reusability and lower operation cost. The method comprises the following specific steps:
the various stirring reaction barrels of the cyanogen breaking reaction process section comprise a PH adjusting barrel I, a first-stage cyanogen breaking barrel, a PH adjusting barrel II, a second-stage cyanogen breaking barrel and an oxidation stripping barrel which are sequentially communicated. The process section mainly comprises a cyanogen breaking reaction, and adopts an alkali chlorination method to carry out two-stage cyanogen breaking to remove pollutants such as total cyanide, COD, partial ammonia nitrogen, donor and the like.
All kinds of stirring reaction barrels of the primary reaction process section comprise a PH adjusting barrel III, a primary reaction barrel, a PH adjusting barrel IV, a PH adjusting barrel V, a PH adjusting barrel VI, a PH adjusting barrel IV and a primary sedimentation tank which are sequentially communicated, sulfuric acid is injected into the PH adjusting barrel III through a hose, a ferrous solution and a burnt sub-solution are injected into the primary reaction barrel through a hose, liquid caustic soda is injected into the PH adjusting barrel IV through a hose, PAC solution and liquid caustic soda are injected into the PH adjusting barrel IV through a hose, PAM solution is injected into the PH adjusting barrel VI through a hose, all kinds of stirring reaction barrels of the secondary reaction process section comprise a buffering barrel I, a PH adjusting barrel VII, a secondary reaction barrel and a secondary sedimentation tank which are sequentially communicated, and the primary sedimentation tankAnd the sixth barrel is connected with the first buffer barrel. The upper part of the PH adjusting barrel six is communicated with a water inlet pipe 7 on the upper part of a water inlet area 9 of the primary sedimentation tank through a water feeding pipe, the water outlet of the water inlet pipe 7 is arranged towards the direction, the downward impact of the water body can be effectively reduced by the water outlet of the direction, the wastewater slowly enters a water distribution area 10 of the sedimentation tank through a perforation hole 8 on the lower part of the water inlet area, and most heavy metal ions and OH are enabled to be separated from each other-The metal hydroxide precipitate is generated by the reaction and is discharged after being precipitated by a cone-shaped sludge precipitation zone 11 at the lower part of the water distribution zone. The upper part of the water distribution area 10 is an inclined plate water passing area 12, the upper part of the inclined plate water passing area 12 is a clear water area 13, the clear water area 13 is provided with a water collecting tank 14, and the water collecting tank 14 is communicated with the bottom of the buffer barrel through a water conveying pipe. Wherein, an inclined plate or an inclined pipe is additionally arranged in the sedimentation tank for improving the sedimentation efficiency. The sedimentation tank with the inclined plate has the advantages of high sedimentation efficiency, short retention time, small occupied area and the like. The heavy metal removing first-stage reaction process adopts a reducing agent and neutralization coagulating sedimentation method to remove pollution factors such as hexavalent chromium, total copper, orthophosphate, petroleum and suspended matters. When the wastewater does not contain hexavalent chromium, the third PH adjusting barrel and the first-level reaction barrel of the section do not need to be operated, and the wastewater directly flows through the third PH adjusting barrel and the first-level reaction barrel.
Referring to fig. 1, 3 and 6, compressed air is injected into the first buffer barrel through a UPVC pipe, liquid alkali is injected into the pH adjusting barrel through a hose, a sodium sulfide solution is injected into the second-stage reaction barrel through a hose, and a PAC solution and a PAM solution are injected into the second-stage sedimentation tank through a hose. The tertiary reaction technology section of advanced treatment's all kinds of stirring reaction barrels are including the buffer tank two that communicates in proper order, PH adjusting barrel eight, tertiary reaction barrel, tertiary coagulation bucket, tertiary flocculation bucket and tertiary sedimentation tank, the secondary sedimentation tank is located between secondary reaction barrel and the buffer tank two, the upper portion outlet pipe of secondary reaction barrel and the mixed zone 15 intercommunication of secondary sedimentation tank, what PAC solution and PAM solution poured into is this mixed zone 15, above-mentioned two kinds of solutions are fully mixed with waste water under the effect of mixer, mixed zone 15 is through the water pipe 19 of bottom and 16 bottom intercommunications of draft tube in the flocculation zone 17, waste water that has the flocculation material passes through draft tube upper portion and flows out other spaces in flocculation zone 17, effectively prevent the influence of water impact to flocculation. The flocculation zone 17 is communicated with the middle upper part of the sedimentation zone 18 through a water outlet at the middle lower part, the lower part of the sedimentation zone 18 is a cone-shaped mud sedimentation zone 11, the upper part of the sedimentation zone is communicated with the clear water zone 13 through an inclined plate water passing zone 12, the upper part of the clear water zone 13 is provided with a water collecting tank 14, and the water collecting tank 14 is communicated with the bottom of the buffer barrel through a water outlet pipe. And in the secondary heavy metal removal reaction process section, pollutants such as total copper, total nickel, orthophosphate, suspended matters and the like are removed by adopting a sulfide and PH regulation coagulating sedimentation method.
Wherein, the buffer tank two-pass is passed through the UPVC pipe and is injected into compressed air, and sulphuric acid and phosphorus removal agent solution are injected into through the hose to PH adjusting tank eight, and tertiary reaction bucket passes through the hose and injects hydrogen peroxide solution, and tertiary coagulation bucket passes through the hose and injects liquid alkali and PAC solution, and tertiary flocculation bucket passes through the hose and injects PAM solution. The agitating unit of tertiary coagulation bucket and tertiary flocculation bucket is paddle formula or frame agitator, prevents that the alum blossom that has formed great switch in the stage of coagulating, flocculating from being smashed, guarantees the effect of sediment. The stirring devices of the other reaction barrels are propeller type or paddle type stirrers, and the main purpose of the stirrers is mixing reaction or medicament dissolution. The suspended solid gets rid of technology section mainly comprises the filter, the filter is filter A and filter B two, the front end of filter is buffer barrel three, tertiary sedimentation tank is located between buffer barrel three and the tertiary flocculation bucket, the inlet tube intercommunication on water intake zone upper portion is passed through the flow pipe and tertiary sedimentation tank in the upper portion of tertiary flocculation bucket, the delivery port orientation of inlet tube sets up, the water intake zone is through the perforation of lower part and sedimentation tank's water distribution district intercommunication, water distribution district upper portion is the swash plate district of leading to water, the lower part is the cone mud settling zone, swash plate district upper portion of leading to water is the clear water district, the clear water district is equipped with the water catch bowl, the water catch bowl passes through the flow pipe and three intercommunications of buffer. The advanced treatment three-stage reaction process section adopts a strong oxidant and a test agent for advanced treatment to remove pollutant factors such as hypophosphite, COD, fluoride, suspended matters, total phosphorus and the like. The structure of the third-level sedimentation tank is the same as that of the first-level sedimentation tank.
Referring to fig. 1, 5, 7 and 8, the two filters a and B are arranged in parallel, the upper part of the filter is a water inlet 20, a water baffle 21 is arranged at the water inlet 20, and the water baffle 21 can prevent the wastewater from directly impacting filter substances, thereby ensuring the effective filtration. The lower part of the filter is a water outlet 22, the filtering layer in the filter is divided into a smokeless coal layer 23, a quartz sand layer 24 and a gravel layer 25, the filtering layer is supported by a porous plate 26 and a bracket 27 at the lower part of the porous plate 26, a filtering mechanism consisting of a filtering cap 28, a sealing ring 29, a screw rod 30 provided with a counter bore 32 and a screw cap 31 is arranged in a through hole of the porous plate 26, and the filtering hole of the filtering cap 28 is communicated with the counter bore 32. When the valve 1 or 1', 4 or 4' is opened and the valve 2 or 2', 3 or 3' is closed, the waste water can enter the filter from the upper part and pass through the filtering layer, the filtering cap and the like, and COD, chroma, suspended matters and the like in the waste water can be further reduced. Wherein the valve 5 or 5' is a pressure protection switch, and can be opened when the pressure in the filter is too high. The above filter may be used in combination with an activated carbon filter for better filtration.
The filter becomes dirty after a certain period of use and, in order to be reusable, the outlet conduit of the filter is connected to a compressed air supply conduit. The compressed air delivery pipeline is communicated with the water outlet pipeline of the filter, the valves 1 or 1', 3 or 3', 4 or 4', 5 or 5' are closed, and the valves 2 or 2' are opened, so that the compressed air can enter the filter from the water outlet to flush the filter. And (3) closing the compressed air, closing the valve 1 or 1', 4 or 4', 5 or 5', opening the valve 2 or 2', 3 or 3', and allowing the waste water to enter a water outlet below the filter to backwash the filter, so that pollutants in the filter are washed clean. The back washing process of the filter is that air is firstly used for washing, and then water is used for back washing: firstly, the water level of the filter tank is reduced to a position 100mm above the surface of the filter layer, air is introduced for a plurality of minutes, and then water is used for back washing. The method is suitable for the filter tank with serious surface pollution and light internal pollution. Corresponding valves must be closed in place, otherwise, when the water level drops below the surface of the filter layer, the upper part of the filter layer is not soaked by water, and in the process of up-and-down disturbance of particles, dirt cannot be effectively discharged and can move towards the deep part of the filter layer.
Referring to fig. 1, 9 and 10, the biochemical reaction tank mainly comprises an anaerobic tank, an anoxic tank and an aerobic tank, wherein the bottom of the anaerobic tank is provided with a water inlet distribution pipe 33 with a plurality of water outlet holes, the water inlet distribution pipe 33 is communicated with a biochemical water inlet pipe 34 and a sludge feeding pipe 35, the sludge feeding pipe 35 is communicated with a biochemical sedimentation tank, and water in the biochemical water inlet pipe 34 is derived from waste water in a filter button of the filter; the middle part of the anaerobic tank is provided with a water inlet buffer mudguard 36 and a buffer inclined plate 37, the upper part of the anaerobic tank is provided with a water outlet weir plate 38, an inner groove of the water outlet weir plate 38 is communicated with the anoxic tank, the upper part of the anoxic tank is communicated with the aerobic tank, and the bottom of the aerobic tank is provided with a sludge return pipe 39 for conveying sludge to the upper part of the anoxic tank. The pollution from the biochemical sedimentation tank and the aerobic tank has high-concentration and high-quality floc groups, has good activity, and can greatly improve and enhance the flocculation and sedimentation effects and the water purification effect. The middle upper part of the aerobic tank is communicated with a guide cylinder 40 in the biochemical sedimentation tank through a water pipe, the lower end of the guide cylinder is a horn-shaped outlet, the horn-shaped outlet is over against a reflecting plate 41, the upper part of the guide cylinder is higher than a water outlet weir plate 38, and perforated aeration pipes 42 are distributed at the bottom parts of the anoxic tank and the aerobic tank. Air is blown into the anoxic pond and the aerobic pond to accelerate the microbial degradation of organic pollutants and other substances in the wastewater. The effect of reflecting plate makes waste water disperse to all around, guarantees waste water and the effective separation of mud, prevents that the waste water that gets into biochemical sedimentation tank from directly rushing to the bottom of sedimentation tank and influencing the effect of sediment row mud. The biochemical treatment process section adopts anaerobic, anoxic and aerobic biochemical treatment processes, and can remove pollutants such as total phosphorus, ammonia nitrogen, total nitrogen, COD, BOD, suspended matters and the like.
In order to facilitate the evacuation of various stirring reaction barrels or adapt to the treatment of various waste waters, the bottoms of the various stirring reaction barrels are provided with drain pipes communicated with drainage ditches.
Claims (9)
1. The full-factor standard-reaching optimization process system for the electroplating wastewater is characterized by comprising a physicochemical treatment system and a biochemical treatment system, wherein the physicochemical treatment system is sequentially divided into a cyanogen breaking reaction process section, a primary reaction process section, a secondary reaction process section, a deep treatment tertiary reaction process section and a suspended matter removal process section which are communicated, the cyanogen breaking reaction process section, the primary reaction process section, the secondary reaction process section and the deep treatment tertiary reaction process section are mainly composed of various stirring reaction barrels and sedimentation tanks, the suspended matter removal process section is mainly composed of a filter, and the biochemical treatment system comprises a biochemical treatment process section which is mainly composed of a biochemical reaction tank and a biochemical sedimentation tank; in the positions of the various stirring reaction barrels of the process sections, the cyanogen breaking reaction process section is higher than or equal to the first-stage reaction process section, the first-stage reaction process section is higher than the second-stage reaction process section, the second-stage reaction process section is higher than the advanced treatment third-stage reaction process section, and the suspended matter removing process section and the biochemical treatment process section are located at the lowest positions of the process sections.
2. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 1, characterized in that: the cyanide breaking reaction process section comprises various stirring reaction barrels, a first-stage cyanide breaking barrel, a second-stage cyanide breaking barrel and an oxidation stripping barrel, wherein the first-stage cyanide breaking barrel, the second-stage cyanide breaking barrel and the oxidation stripping barrel are sequentially communicated, the various stirring reaction barrels of the first-stage reaction process section comprise a third PH regulating barrel, a fourth PH regulating barrel, a fifth PH regulating barrel, a sixth PH regulating barrel and a first-stage sedimentation tank which are sequentially communicated, the various stirring reaction barrels of the second-stage reaction process section comprise a first buffer barrel, a seventh PH regulating barrel, a second-stage reaction barrel and a second-stage sedimentation tank which are sequentially communicated, the first-stage sedimentation tank is positioned between the sixth PH regulating barrel and the first buffer barrel, the upper part of the sixth PH regulating barrel is communicated with a water inlet pipe on the upper part of a water inlet area of the first-stage sedimentation tank through a water conveying pipe, the water outlet of the water inlet pipe is arranged towards the direction, the water inlet area is communicated with a, The lower part is a cone-shaped mud settling area, the upper part of the inclined plate water passing area is a clear water area, the clear water area is provided with a water collecting tank, and the water collecting tank is communicated with the bottom of the buffer barrel through a water feeding pipe.
3. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 1 or 2, characterized in that: all kinds of stirring reaction barrels of tertiary reaction technology section are including the buffer tank two that communicates in proper order, eight and tertiary reaction barrel of PH adjusting tank, tertiary coagulation bucket, tertiary flocculation bucket and tertiary sedimentation tank, the secondary sedimentation tank is located between secondary reaction barrel and the buffer tank two, the upper portion outlet pipe of secondary reaction barrel and the mixed region intercommunication of secondary sedimentation tank, the water pipe that the mixed region passes through the bottom communicates with the draft tube bottom in the flocculation region, the flocculation region passes through the delivery port of well lower part and the well upper portion intercommunication of sedimentation region, the lower part of sedimentation region is the heavy mud district of taper, upper portion passes through swash plate passageway and clear water district intercommunication, clear water district upper portion is equipped with the water catch bowl, the water catch bowl passes through the bottom intercommunication of outlet pipe and buffer tank.
4. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 3, characterized in that: the stirring devices of the three-stage coagulation barrel and the three-stage flocculation barrel are paddle type or frame type stirrers, and the stirring devices of the rest reaction barrels are propulsion type or paddle type stirrers.
5. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 3, characterized in that: the filter that technology section was got rid of to the suspended solid is two, the front end of filter is three for the buffering bucket, tertiary sedimentation tank is located between three and the tertiary flocculation bucket of buffering bucket, the upper portion of tertiary flocculation bucket is passed through the flow pipe and is intake the inlet tube intercommunication on district upper portion with tertiary sedimentation tank, the delivery port orientation of inlet tube sets up, it is through the perforation of lower part and the water distribution district intercommunication of sedimentation tank to intake the district, water distribution district upper portion is the swash plate district that leads to water, the lower part is the cone mud settling zone, swash plate leads to water district upper portion and is the clear water district, the clear water district is equipped with the water catch bowl, the water catch bowl passes through the flow pipe and.
6. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 5, characterized in that: the two filters are arranged in parallel, the upper parts of the filters are water inlets, the lower parts of the filters are water outlets, filtering layers in the filters are divided into a smokeless coal layer, a quartz sand layer and a gravel layer, the filtering layers are supported by a porous plate and a support at the lower part of the porous plate, a filtering mechanism consisting of a filter cap, a sealing ring, a screw rod with a counter bore and a screw cap is arranged in a through hole of the porous plate, and a filtering hole of the filter cap is communicated with the counter bore.
7. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 6, characterized in that: and the water outlet pipeline of the filter is connected with a compressed air conveying pipeline.
8. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 1, characterized in that: the biochemical reaction tank mainly comprises an anaerobic tank, an anoxic tank and an aerobic tank, wherein the bottom of the anaerobic tank is provided with a water inlet distribution pipe with a plurality of water outlet holes, the water inlet distribution pipe is communicated with a biochemical water inlet pipe and a sludge feeding pipe, the sludge feeding pipe is communicated with the biochemical sedimentation tank, the middle of the anaerobic tank is provided with a water inlet buffering fender and a buffering inclined plate, the upper part of the anaerobic tank is provided with a water outlet weir plate, an inner groove of the water outlet weir plate is communicated with the anoxic tank, the upper part of the anoxic tank is communicated with the aerobic tank, the bottom of the aerobic tank is provided with a sludge return pipe for conveying sludge to the upper part of the anoxic tank, the middle upper part of the aerobic tank is communicated with a guide cylinder in the biochemical sedimentation tank through a water pipe, the lower end of the guide cylinder is a trumpet-shaped outlet, the trumpet-shaped outlet is over against a.
9. The electroplating wastewater full-factor standard-reaching optimization process system according to claim 1, characterized in that: and the bottoms of the various stirring reaction barrels are provided with drain pipes communicated with the drainage ditches.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436716A (en) * | 2019-09-05 | 2019-11-12 | 江门市崖门新财富环保工业有限公司 | Electroplating wastewater total divisor optimization process system up to standard |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436716A (en) * | 2019-09-05 | 2019-11-12 | 江门市崖门新财富环保工业有限公司 | Electroplating wastewater total divisor optimization process system up to standard |
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