CN212356860U - Printing ink wastewater treatment integrated equipment - Google Patents
Printing ink wastewater treatment integrated equipment Download PDFInfo
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- CN212356860U CN212356860U CN202020047993.9U CN202020047993U CN212356860U CN 212356860 U CN212356860 U CN 212356860U CN 202020047993 U CN202020047993 U CN 202020047993U CN 212356860 U CN212356860 U CN 212356860U
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Abstract
The utility model discloses a printing ink wastewater treatment complete equipment, which comprises a coagulating sedimentation tank, an electrocatalytic oxidation treatment tank, a catalytic oxidation reaction tank, a catalytic oxidation sedimentation tank, a homogenizing tank, a filter and a reverse osmosis device which are sequentially communicated, and also comprises a medicament feeding device which is respectively communicated with the coagulating sedimentation tank, the electrocatalytic oxidation treatment tank, the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank; the electrocatalytic oxidation treatment tank is internally provided with a plurality of electrode plates, each electrode plate comprises a plurality of anode plates and a plurality of cathode plates which are arranged in an equidistant and staggered manner, and a baffle plate is arranged between every two adjacent electrode plates. The utility model discloses carry out the complete sets design to coagulating sedimentation, catalytic oxidation and dish tubular reverse osmosis's combined technology, have that treatment effeciency is high, remove convenient, investment running cost low, easy operation, do benefit to characteristics such as maintenance, conveniently be connected with other technologies and use, can regard as the printing ink waste water advanced treatment complete sets, or the cyclic utilization, near zero release technical pre-treatment facilities.
Description
Technical Field
The utility model relates to a printing ink waste water treatment integrated equipment belongs to the waste water treatment equipment field.
Background
The printing ink wastewater has the characteristics of high chroma, high COD concentration, complex components, high biodegradability and the like. And the wastewater is discharged intermittently, the pollutant types and the water quality condition change greatly along with the production, and great difficulty is brought to the process design and the equipment operation of the wastewater. The existing treatment process is long in process flow, complex in treatment equipment, large in occupied area and not beneficial to maintenance and management, and the treated wastewater is difficult to recycle and even to reach the discharge standard.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model discloses a printing ink waste water treatment integrated equipment, the device adopt combination technology to handle printing ink waste water, can realize printing ink waste water's retrieval and utilization, and integrated equipment area is little, easily removal, convenient operation.
The technical scheme of the utility model is that a printing ink wastewater treatment complete equipment is provided, which comprises a coagulating sedimentation tank, an electrocatalytic oxidation treatment tank, a catalytic oxidation reaction tank, a catalytic oxidation sedimentation tank, a homogenizing tank, a filter and a reverse osmosis device which are sequentially communicated, and also comprises a medicament feeding device which is respectively communicated with the coagulating sedimentation tank, the electrocatalytic oxidation treatment tank, the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank; be equipped with the several plate electrode in the electricity catalytic oxidation treatment tank, the plate electrode includes equidistant staggered arrangement's a plurality of anode plates and negative plate, and each is adjacent be equipped with the baffling board between the plate electrode, pending printing ink waste water carries out one-level oxidation treatment through the electricity catalytic oxidation treatment tank after coagulating sedimentation tank coagulating sedimentation, then flows again and carries out second grade oxidation treatment through catalytic oxidation reaction tank, and waste water after the second grade oxidation treatment forms the floc through the catalytic oxidation sedimentation tank again and deposits, and the supernatant after the sediment passes through flow into the filter behind the homogeneity pond and carry out one-level fine filtration, flow in again reverse osmosis unit carries out second grade fine filtration, and two routes of moisture after the second grade fine filtration are discharged, and be the reuse water through producing the water export discharge all the way, and another way is dense water through dense water export discharge.
Furthermore, pH control meters are arranged on the coagulating sedimentation tank, the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank.
Further, the medicament feeding device comprises six medicament feeding boxes, namely an electrocatalyst medicament feeding box, a coagulant aid medicament feeding box, an alkali medicament feeding box, an acid medicament feeding box, a catalyst medicament feeding box and an oxidant medicament feeding box.
Further, the medicament placed in the electrocatalyst dosing tank is a supported iron, copper or nickel metal oxide taking active carbon as a carrier, and the medicament placed in the coagulant dosing tank is any one or more of polymeric ferrous sulfate, polymeric aluminum chloride, ferrous sulfate and ferric chloride; the medicament placed in the coagulant aid dosing tank is at least one of polyacrylamide and sodium polyacrylate; the medicament in the alkali dosing box is at least one of caustic soda and calcium hydroxide; the medicament placed in the acid dosing tank is at least one of sulfuric acid and hydrochloric acid; the medicament placed in the catalyst dosing box is ferrous sulfate.
Furthermore, the top of the electrode plate is connected with the inner top end of the electrocatalytic oxidation tank, a circulation gap is formed between the bottom of the electrode plate and the inner bottom end of the electrocatalytic oxidation tank, the bottom end of the baffle plate is connected with the inner bottom end of the electrocatalytic oxidation tank, and a circulation gap is formed between the top end of the baffle plate and the inner top end of the electrocatalytic oxidation tank.
Furthermore, an overflow weir is arranged between the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank.
Furthermore, the bottoms of the coagulation sedimentation tank and the catalytic oxidation sedimentation tank are communicated with a sludge tank through sludge pipes.
Further, the sludge tank is communicated with a filter press through a sludge pump.
Further, the reverse osmosis device is a disc tube type reverse osmosis device.
Further, the coagulating sedimentation tank is communicated with a water inlet pump.
The beneficial effects of the utility model are that, carry out the complete sets design to coagulating sedimentation, catalytic oxidation and dish tubular reverse osmosis's combined technology, have that treatment effeciency is high, remove convenient, investment running cost low, easy operation, do benefit to characteristics such as maintenance, conveniently be connected with other technologies and use, can regard as the printing ink waste water advanced treatment complete sets, or the cyclic utilization, the pretreatment equipment of near zero release technique. The invention adopts the electrocatalytic oxidation treatment tank, saves the addition of an oxidant in a catalytic oxidation unit, and utilizes an oxidizing substance generated in the electrocatalytic process to carry out catalytic oxidation reaction. And the invention adopts a two-stage catalytic oxidation structure and a two-stage filtering device, thereby achieving the best ink wastewater treatment effect.
Drawings
FIG. 1 is a schematic structural diagram of an ink wastewater treatment plant according to an embodiment of the present invention.
Reference numerals: 1-a water inlet pump; 2-a coagulating sedimentation tank; 3-a catalytic oxidation reaction tank; 4-catalytic oxidation sedimentation tank; 5-pH control meter; 6-overflow weir; 7-a medicament adding device; 71-coagulant dosing box; 72-coagulant aid dosing box; 73-an alkali dosing tank; 74-acid dosing box; 75-a catalyst dosing tank; 76-an oxidant dosing tank; 8-homogenizing the mixture in a homogenizing tank; 9-a filter; 10- (dish-tube) reverse osmosis unit; 101-a concentrated water outlet; 102-a water production outlet; 11-a sludge tank; 12-a sludge pump; 13-filter press.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the printing ink wastewater treatment complete equipment comprises a water inlet pump 1, a coagulating sedimentation tank 2, an electrocatalytic oxidation treatment tank 14, a catalytic oxidation reaction tank 3, a catalytic oxidation sedimentation tank 4, a homogenizing tank 8, a filter 9 and a reverse osmosis device 10 which are communicated in sequence; the device also comprises a medicament adding device which is respectively communicated with the coagulating sedimentation tank, the electrocatalytic oxidation treatment tank, the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank; a plurality of electrode plates 15 are arranged in the electrocatalytic oxidation treatment tank, each electrode plate comprises a plurality of anode plates and cathode plates which are arranged in an equidistant and staggered manner, and a baffle plate 16 is arranged between every two adjacent electrode plates; the top of the electrode plate is connected with the inner top end of the electrocatalytic oxidation tank, the bottom of the electrode plate and the inner bottom end of the electrocatalytic oxidation tank form a circulation gap, the bottom end of the baffle plate is connected with the inner bottom end of the electrocatalytic oxidation tank, and the top end of the baffle plate and the inner top end of the electrocatalytic oxidation tank form a circulation gap; the lower parts of the mud hoppers of the coagulating sedimentation tank 2 and the catalytic oxidation sedimentation tank 4 are communicated with a sludge tank 11 through a sludge pipe, and the sludge tank 11 is connected with a filter press 13 through a sludge pump 12. Wherein the water inlet pump 1 is connected with the lower part of the coagulating sedimentation tank 2 through a pipeline; the catalytic oxidation reaction tank 3 and the catalytic oxidation sedimentation tank 4 are separated by a partition plate, and the catalytic oxidation reaction tank 3 is communicated with the catalytic oxidation sedimentation tank 4 through an overflow weir 6; the coagulation sedimentation tank 2 is communicated with the catalytic oxidation reaction tank 3 above the mud bucket, and the catalytic oxidation sedimentation tank 4 is communicated with the homogenizing tank 8 above the mud bucket. The bottom parts of the coagulating sedimentation tank 2 and the catalytic oxidation sedimentation tank 4 are connected with a sludge tank 11 through a sludge discharge pipeline, and the sludge tank 11 is connected with a filter press 13 through a sludge pump 12 and a pipeline; the homogenizing pool 8 is communicated with the upper part of the filter 9; the filter 9 is connected with the reverse osmosis device 10 through a pipeline; the reverse osmosis device adopts a disc tube type reverse osmosis device; the reverse osmosis device 10 is provided with a concentrated water outlet 101 and a produced water outlet 102; the coagulating sedimentation tank 2 is connected with a coagulant dosing tank 71, a coagulant aid dosing tank 72 and an alkali dosing tank 73 through pipelines; the catalytic oxidation reaction tank 3 is connected with an acid dosing tank 74, a catalyst dosing tank 75 and an oxidant dosing tank 76 through pipelines; the catalytic oxidation sedimentation tank 4 is connected with an alkali dosing tank 73 through a pipeline.
In specific implementation, firstly, wastewater to be treated is lifted from the lower left part of the coagulating sedimentation tank 2 through the water inlet pump 1 and enters the coagulating sedimentation tank 2, the pH value of the wastewater is adjusted by the alkali dosing tank 73, the pH value of the wastewater in the coagulating sedimentation tank 2 is controlled to be 7-10 by the pH controller 5, and the wastewater is mixed with medicaments dosed by the coagulant dosing tank 71 and the coagulant aid dosing tank 72. And the supernatant after precipitation flows into a catalytic oxidation reaction tank 3 from the upper part of a mud bucket of the coagulating sedimentation tank 2 through a pipeline, the pH value of the catalytic oxidation reaction tank is regulated by an acid dosing tank 74, the pH value of the catalytic oxidation reaction tank is controlled to be 2.5-4.5 by a pH controller 5, and the supernatant is mixed with a catalytic reagent dosed by a catalyst dosing tank 75 and an oxidant dosing tank 76 for oxidation treatment. When the liquid level rises to a certain height, wastewater enters the catalytic oxidation sedimentation tank 4 through the overflow weir 6, the pH value of the wastewater is adjusted by the alkali dosing tank 73, and the pH value of the catalytic oxidation sedimentation tank 4 is controlled to be 9-12 by the pH controller 5 to form floc sediment. The supernatant after precipitation flows into the homogenizing tank 8 from the upper part of the mud bucket of the catalytic oxidation sedimentation tank 4 through a pipeline. The wastewater flows into a filter 9 through the upper part of the homogenizing pool 8 to remove suspended particles. The treated wastewater flows into a reverse osmosis device 10 through a pipeline to obtain produced water meeting the recycling standard and a small amount of concentrated water. Finally, the reuse water is discharged through a water production outlet 102, and the concentrated water is discharged through a concentrated water outlet 101. Sludge in the mud hoppers of the coagulation sedimentation tank 2 and the catalytic oxidation sedimentation tank 4 is put into a sludge tank 11 through a sludge pipeline and enters a filter press 13 through a sludge pump 12 for filter pressing.
The chemical agent placed in the electrocatalyst dosing tank 77 is a supported iron, copper or nickel metal oxide using activated carbon as a carrier, and the chemical agent placed in the coagulant dosing tank 71 is one or more of inorganic coagulants such as polymeric ferrous sulfate, polymeric aluminum chloride, ferrous sulfate, ferric chloride and the like or other organic coagulants; the medicament placed in the coagulant aid dosing box 72 is one or more of polyacrylamide, sodium polyacrylate and the like in various ionic forms; the medicament in the alkali dosing tank 73 is one or more of alkali materials such as caustic soda, calcium hydroxide and the like; the medicament placed in the acid dosing box 74 is one or more of sulfuric acid, hydrochloric acid and other acid materials; the agent placed in the catalyst dosing tank 75 is ferrous sulfate; the chemical contained in the oxidizing agent dosing tank 76 is hydrogen peroxide.
In the electrocatalytic oxidation process, after the anode is electrified, a plurality of strong oxidizing substances are generated, such as H2O2, O3, HO-, HO2-, O2-, and the like, and Cl-contained in the wastewater generates Cl2, HClO-, ClO-and other substances with strong oxidizing property under the electrocatalytic oxidation condition. These strongly oxidizing substances can break the chains of the hardly degradable organic substances contained in the wastewater. The cathode will generate some reducing substances, such as H2, which will undergo reduction reaction with nitrate or nitrite in the wastewater to achieve the effect of removing total nitrogen.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The printing ink wastewater treatment complete equipment is characterized by comprising a coagulation sedimentation tank (2), an electrocatalytic oxidation treatment tank (14), a catalytic oxidation reaction tank (3), a catalytic oxidation sedimentation tank (4), a homogenizing tank (8), a filter (9) and a reverse osmosis device (10) which are sequentially communicated, and further comprising a medicament feeding device which is respectively communicated with the coagulation sedimentation tank, the electrocatalytic oxidation treatment tank, the catalytic oxidation reaction tank and the catalytic oxidation sedimentation tank; be equipped with several plate electrode (15) in the electricity catalytic oxidation treatment pond, the plate electrode includes equidistant staggered arrangement's a plurality of anode plates and negative plate, and each is adjacent be equipped with baffling board (16) between the plate electrode, pending printing ink waste water carries out one-level oxidation treatment through coagulating sedimentation tank coagulating sedimentation back, through electricity catalytic oxidation treatment pond, then flows through catalytic oxidation reaction tank and carries out second grade oxidation treatment, and waste water after the second grade oxidation treatment forms the floc through catalytic oxidation sedimentation tank again and deposits, and the supernatant after the sediment passes through flow in filter (9) behind the homogeneity pond and carries out one-level fine filtration, and the refluence flows in reverse osmosis unit carries out second grade fine filtration, and two ways of moisture after the second grade fine filtration are discharged, are the reuse water outlet (102) discharge all the way, and another way is dense water through dense water outlet (101) discharge.
2. The printing ink wastewater treatment complete equipment as claimed in claim 1, wherein the coagulation sedimentation tank (2), the catalytic oxidation reaction tank (3) and the catalytic oxidation sedimentation tank (4) are respectively provided with a pH control meter.
3. The ink wastewater treatment plant according to claim 1, wherein the chemical dosing apparatus (7) comprises six dosing tanks, which are an electrocatalyst dosing tank (77), a coagulant dosing tank (71), a coagulant aid dosing tank (72), an alkali dosing tank (73), an acid dosing tank (74), a catalyst dosing tank (75), and an oxidant dosing tank (76), respectively.
4. The ink wastewater treatment plant according to claim 3, wherein the chemical agent placed in the electrocatalyst dosing tank (77) is a metal oxide loaded with iron, copper or nickel using activated carbon as a carrier, and the chemical agent placed in the coagulant dosing tank (71) is one or more of polymeric ferrous sulfate, polymeric aluminum chloride, ferrous sulfate, and ferric chloride; the medicament placed in the coagulant aid dosing tank (72) is at least one of polyacrylamide and sodium polyacrylate; the medicament in the alkali dosing tank (73) is at least one of caustic soda and calcium hydroxide; the medicament placed in the acid dosing box (74) is at least one of sulfuric acid and hydrochloric acid; the medicament placed in the catalyst dosing tank (75) is ferrous sulfate; the chemical agent placed in the oxidizing agent dosing tank (76) is hydrogen peroxide.
5. The ink wastewater treatment plant according to claim 1, wherein the top of the electrode plate is connected to the inner top end of the electrocatalytic oxidation tank, the bottom of the electrode plate forms a flow gap with the inner bottom end of the electrocatalytic oxidation tank, the bottom end of the baffle plate is connected to the inner bottom end of the electrocatalytic oxidation tank, and the top end of the baffle plate forms a flow gap with the inner top end of the electrocatalytic oxidation tank.
6. The ink wastewater treatment plant according to claim 1, wherein an overflow weir (6) is provided between the catalytic oxidation reaction tank (3) and the catalytic oxidation sedimentation tank (4).
7. The ink wastewater treatment plant according to claim 1, wherein the bottoms of the coagulation sedimentation tank (2) and the catalytic oxidation sedimentation tank (4) are communicated with a sludge tank (11) through sludge pipes.
8. The ink wastewater treatment plant according to claim 7, wherein the sludge tank (11) is in communication with a filter press (13) via a sludge pump (12).
9. The ink wastewater treatment plant according to claim 1, wherein the reverse osmosis device (10) is a disc tube type reverse osmosis device.
10. The ink wastewater treatment plant according to claim 1, wherein the coagulation sedimentation tank (2) is in communication with a water feed pump (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020047993.9U CN212356860U (en) | 2020-01-10 | 2020-01-10 | Printing ink wastewater treatment integrated equipment |
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| CN202020047993.9U CN212356860U (en) | 2020-01-10 | 2020-01-10 | Printing ink wastewater treatment integrated equipment |
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| CN212356860U true CN212356860U (en) | 2021-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402095A (en) * | 2021-05-25 | 2021-09-17 | 湖南四环环保科技有限公司 | Waste-free recycling treatment process for printing ink wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402095A (en) * | 2021-05-25 | 2021-09-17 | 湖南四环环保科技有限公司 | Waste-free recycling treatment process for printing ink wastewater |
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