CN216513304U - Zero discharge system for acrylic resin production wastewater - Google Patents
Zero discharge system for acrylic resin production wastewater Download PDFInfo
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- CN216513304U CN216513304U CN202123392857.7U CN202123392857U CN216513304U CN 216513304 U CN216513304 U CN 216513304U CN 202123392857 U CN202123392857 U CN 202123392857U CN 216513304 U CN216513304 U CN 216513304U
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Abstract
The utility model provides a zero discharge system for acrylic resin production wastewater, and relates to the technical field of sewage treatment. The acrylic resin production wastewater zero-discharge system comprises an oil substance removing part, an organic substance removing part, a reaction tank assembly, a filtering part, a softening resin part, a reverse osmosis part and an evaporation system; the oil substance removing part, the organic substance removing part, the reaction tank assembly, the filtering part, the softening resin part, the reverse osmosis part and the evaporation system are sequentially connected. The technical effect of purifying the acrylic acid wastewater is achieved.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a zero discharge system for acrylic resin production wastewater.
Background
Acrylic acid is an important petrochemical product. About 1.2t of waste water can be generated in the production of 1t of acrylic acid and ester products thereof. The wastewater mainly contains organic acids such as acetic acid and acrylic acid, micromolecular aldehydes such as formaldehyde and a small amount of acrylic esters, and has obvious microbial toxicity. The acrylic acid production wastewater has high pollutant concentration, great degradation difficulty and strong environmental hazard, and the effective treatment of the wastewater has important significance for energy conservation, emission reduction and sustainable development.
Therefore, it is an important technical problem to be solved by those skilled in the art to provide a zero discharge system for acrylic resin production wastewater for purifying acrylic acid wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a zero discharge system for acrylic resin production wastewater, which is used for relieving the technical problem of great harm of acrylic resin wastewater in the prior art.
The embodiment of the utility model provides a zero discharge system for acrylic resin production wastewater, which comprises an oil substance removing part, an organic substance removing part, a reaction tank assembly, a filtering part, a softened resin part, a reverse osmosis part and an evaporation system, wherein the oil substance removing part is arranged on the upper part of the reaction tank assembly;
the oil substance removing part, the organic substance removing part, the reaction tank assembly, the filtering part, the softening resin part, the reverse osmosis part and the evaporation system are sequentially connected.
The embodiment of the utility model provides a possible implementation mode, wherein the oil substance removing part adopts a dissolved air floatation machine;
one end of the dissolved air flotation machine is communicated with the wastewater tank, and the other end of the dissolved air flotation machine is connected with the organic matter removing part.
The embodiment of the utility model provides a possible implementation mode, wherein the organic matter removing part adopts an advanced oxidation reaction tank;
one end of the advanced oxidation reaction tank is connected with the dissolved air flotation machine, and the other end of the advanced oxidation reaction tank is connected with the reaction tank assembly.
The embodiment of the utility model provides a possible implementation manner, wherein the reaction tank assembly comprises a first reaction tank, a second reaction tank and a third reaction tank;
the first reaction tank, the second reaction tank and the third reaction tank are connected in sequence;
it adds the medicine piece to be provided with sodium hypochlorite in the first reaction tank, it adds the medicine piece to be provided with sodium hydroxide in the second reaction tank, it adds medicine piece and flocculating agent and adds the medicine piece to be provided with sodium carbonate in the third reaction tank.
The embodiment of the utility model provides a possible implementation mode, wherein the acrylic resin production wastewater zero discharge system further comprises a sedimentation tank and a sludge drying part;
the sedimentation tank is used for connecting the third reaction tank and the filtering piece;
the sludge drying is connected with the sludge outlet of the sedimentation tank.
Embodiments of the present invention provide a possible implementation manner, wherein the filter element includes a sand filter and an ultra-filter;
the water inlet of the sand filter is connected with the sedimentation tank, the water outlet of the sand filter is connected with the water inlet of the ultra-filter, and the water outlet of the ultra-filter is connected with the softened resin piece.
The embodiment of the utility model provides a possible implementation manner, wherein the resin softening part adopts a resin softener;
the water inlet of the resin softener is connected with the ultrafilter, and the water outlet of the resin softener is connected with the reverse osmosis piece.
The embodiment of the utility model provides a possible implementation mode, wherein the reverse osmosis part comprises a first-stage reverse osmosis device and a second-stage reverse osmosis device;
the primary reverse osmosis piece is connected with the resin softener;
the water outlet of the first-stage reverse osmosis device is connected with the second-stage reverse osmosis device, and the concentrated water outlet of the second-stage reverse osmosis device is connected with the first-stage reverse osmosis device.
The embodiment of the utility model provides a possible implementation mode, wherein the reverse osmosis part further comprises a concentrated water reverse osmosis device, a concentrated water outlet of the first-stage reverse osmosis device is connected with the concentrated water reverse osmosis device, and the concentrated water reverse osmosis device is connected with the second-stage reverse osmosis device.
The embodiment of the utility model provides a possible implementation mode, wherein the evaporation system is connected with the concentrated water reverse osmosis device, and a condensed water outlet of the evaporation system is connected with the secondary reverse osmosis device.
Has the advantages that:
the utility model provides a zero discharge system for acrylic resin production wastewater, which comprises an oil substance removing part, an organic substance removing part, a reaction tank assembly, a filtering part, a softened resin part, a reverse osmosis part and an evaporation system, wherein the oil substance removing part is connected with the organic substance removing part; the oil substance removing part, the organic substance removing part, the reaction tank assembly, the filtering part, the softening resin part, the reverse osmosis part and the evaporation system are sequentially connected.
Specifically, the equipment of the acrylic resin production wastewater zero discharge system is simple, and the operability is strong; organic matter in the wastewater is removed by using the organic matter removing part, so that the organic matter pollution and blockage risk of the subsequent membrane operation is reduced; ammonia nitrogen ions in water are removed through the reaction tank assembly, the quality of water produced by the membrane is improved, the reverse osmosis piece is adopted for carrying out wastewater concentration, the investment and the running cost of the evaporator are reduced, wastewater is evaporated through the evaporation mode of the evaporation system, and zero discharge of wastewater is really realized.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a zero discharge system for acrylic resin production wastewater according to an embodiment of the present invention.
Icon:
101-dissolved air flotation machine; 102-advanced oxidation reaction tank; 103-a first reaction tank; 104-a second reaction tank; 105-a third reaction tank; 106-a sedimentation tank; 107-sludge drying part; 108-a sand filter; 109-ultrafilter; 110-a resin softener; 111-first stage reverse osmosis unit; 112-a secondary reverse osmosis unit; 113-a concentrated water reverse osmosis unit; 114-an evaporation system;
200-wastewater pool.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1, the embodiment provides a zero discharge system for wastewater in acrylic resin production, which includes an oil substance removing member, an organic substance removing member, a reaction tank assembly, a filtering member, a softening resin member, a reverse osmosis member, and an evaporation system 114; the oil substance removing part, the organic substance removing part, the reaction tank assembly, the filtering part, the softening resin part, the reverse osmosis part and the evaporation system 114 are connected in sequence.
Specifically, the equipment of the acrylic resin production wastewater zero discharge system is simple, and the operability is strong; organic matter in the wastewater is removed by using the organic matter removing part, so that the organic matter pollution and blockage risk of the subsequent membrane operation is reduced; ammonia nitrogen ions in water are removed through the reaction tank assembly, the quality of water produced by the membrane is improved, the reverse osmosis piece is adopted for carrying out wastewater concentration, the investment and the running cost of the evaporator are reduced, wastewater is evaporated through the evaporation mode of the evaporation system 114, and zero discharge of wastewater is really realized.
Referring to fig. 1, in an alternative of this embodiment, the oil removing member is a dissolved air flotation machine 101; one end of the dissolved air flotation machine 101 is communicated with the wastewater tank 200, and the other end is connected with the organic matter removing part.
Referring to fig. 1, in an alternative embodiment, the organic matter removing member is an advanced oxidation reaction tank 102;
one end of the advanced oxidation reaction tank 102 is connected with the dissolved air flotation machine 101, and the other end is connected with the reaction tank assembly.
Referring to fig. 1, in an alternative of the present embodiment, the reaction cell assembly includes a first reaction cell 103, a second reaction cell 104, and a third reaction cell 105; the first reaction tank 103, the second reaction tank 104 and the third reaction tank 105 are connected in sequence; a sodium hypochlorite dosing piece is arranged in the first reaction tank 103, a sodium hydroxide dosing piece is arranged in the second reaction tank 104, and a sodium carbonate dosing piece and a flocculating agent dosing piece are arranged in the third reaction tank 105.
Referring to fig. 1, in an alternative of this embodiment, the acrylic resin production wastewater zero discharge system further includes a sedimentation tank 106 and a sludge drying member 107; the sedimentation tank 106 is used for connecting the third reaction tank 105 and the filter element; the sludge drying is connected with the sludge outlet of the sedimentation tank 106.
Referring to fig. 1, in an alternative to this embodiment, the filter elements include a sand filter 108 and an ultrafilter 109; the inlet of the sand filter 108 is connected to the sedimentation tank 106, the outlet of the sand filter 108 is connected to the inlet of the ultrafilter 109, and the outlet of the ultrafilter 109 is connected to the softening resin member.
Referring to fig. 1, in an alternative of the present embodiment, a resin softener 110 is used for softening a resin member; the inlet of the resin softener 110 is connected to the ultrafilter 109, and the outlet of the resin softener 110 is connected to the reverse osmosis element.
Referring to fig. 1, in an alternative to this embodiment, the reverse osmosis unit comprises a primary reverse osmosis unit 111 and a secondary reverse osmosis unit 112; the primary reverse osmosis element is connected to the resin softener 110; the water outlet of the first-stage reverse osmosis device 111 is connected with the second-stage reverse osmosis device 112, and the concentrated water outlet of the second-stage reverse osmosis device 112 is connected with the first-stage reverse osmosis device 111.
Referring to fig. 1, in an alternative of this embodiment, the reverse osmosis member further includes a concentrated water reverse osmosis unit 113, the concentrated water outlet of the first-stage reverse osmosis unit 111 is connected to the concentrated water reverse osmosis unit 113, and the concentrated water reverse osmosis unit 113 is connected to the second-stage reverse osmosis unit 112.
Referring to fig. 1, in an alternative to this embodiment, the evaporation system 114 is connected to the concentrate reverse osmosis unit 113, and the condensed water outlet of the evaporation system 114 is connected to the secondary reverse osmosis unit 112.
Specifically, the acrylic resin waste water zero discharge system that this embodiment provided's working procedure does:
the wastewater enters a wastewater pool 200 for homogenization and is pumped into dissolved air floatation to remove oil substances and part of suspended matters in the wastewater.
Then the water discharged from the dissolved air flotation machine 101 enters the advanced oxidation reaction tank 102, organic matters in the wastewater are removed in the advanced oxidation reaction tank 102, then the water is conveyed into the first reaction tank 103, sodium hypochlorite is uniformly added into the first reaction tank 103 through a sodium hypochlorite adding piece, after stirring reaction is carried out for 30-60min, the feed liquid in the first reaction tank 103 is conveyed into the second reaction tank 104, sodium hydroxide is uniformly added into the second reaction tank 104 through a sodium hydroxide adding piece, after stirring reaction is carried out for 15-30min, the feed liquid in the second reaction tank 104 is conveyed into the third reaction tank 105, sodium carbonate and a flocculating agent are uniformly added into the third reaction tank 105 through a sodium carbonate adding piece and a flocculating agent adding piece, after stirring reaction is carried out for 15-30min, the feed liquid in the third reaction tank 105 is conveyed into a sedimentation tank 106 for mud-water separation.
The supernatant in the sedimentation tank 106 is passed through a sand filter 108 and an ultrafilter 109 in sequence to remove suspended matter, colloid and other substances, and the sludge in the sedimentation tank 106 is conveyed to a sludge drying unit 107 for drying treatment.
The water produced by the ultrafilter 109 is then conveyed to the resin softener 110, and the effluent from the vertical softener enters the primary reverse osmosis device 111.
Wherein, the concentrated water of the first-stage reverse osmosis device 111 enters the concentrated water reverse osmosis device 113 for re-concentration, the concentrated water in the concentrated water reverse osmosis device 113 enters the evaporation system 114 for evaporation and crystallization, and the condensed water generated by the evaporation system 114 returns to the inlet of the first-stage reverse osmosis system.
In addition, the produced water of the first-stage reverse osmosis device 111 and the concentrated water reverse osmosis device 113 enters the second-stage reverse osmosis device 112 for secondary filtration, the produced water of the second-stage reverse osmosis device 112 is recycled as the final produced water reaching the standard, wherein the concentrated water in the second-stage reverse osmosis device 112 returns to the inlet of the first-stage reverse osmosis device 111 again, and the concentrated water is treated.
It is noted that in the advanced oxidation reaction tank 102, the advanced oxidation may be selected from one or more of iron-carbon micro-electrolysis, ozone activated carbon, and fenton advanced oxidation.
In conclusion, the acrylic resin production wastewater zero discharge system provided by the embodiment utilizes the advanced oxidation part to remove organic matters in wastewater, and reduces the organic matter pollution and blockage risk of subsequent membrane operation (sand filtration, ultrafiltration, reverse osmosis and other parts); ammonia nitrogen ions in water are removed through a breakpoint chlorination reaction, the quality of membrane produced water is improved, the investment and the operation cost of an evaporator are reduced by adopting a reverse osmosis mode to concentrate wastewater, and wastewater is evaporated through an evaporation mode, so that zero discharge of wastewater is really realized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an acrylic resin waste water zero release system which characterized in that includes: an oil substance removing part, an organic substance removing part, a reaction tank component, a filtering piece, a softening resin piece, a reverse osmosis piece and an evaporation system (114);
the oil substance removing part, the organic substance removing part, the reaction tank assembly, the filtering part, the softening resin part, the reverse osmosis part and the evaporation system (114) are sequentially connected.
2. The acrylic resin production wastewater zero discharge system as set forth in claim 1, wherein the oil substance removing member employs a dissolved air flotation machine (101);
one end of the dissolved air floatation machine (101) is communicated with the wastewater tank (200), and the other end of the dissolved air floatation machine is connected with the organic matter removing part.
3. The acrylic resin production wastewater zero discharge system according to claim 2, characterized in that the organic matter removing member employs an advanced oxidation reaction tank (102);
one end of the advanced oxidation reaction tank (102) is connected with the dissolved air floatation machine (101), and the other end is connected with the reaction tank assembly.
4. The acrylic resin production wastewater zero discharge system as claimed in claim 3, characterized in that the reaction tank assembly comprises a first reaction tank (103), a second reaction tank (104) and a third reaction tank (105);
the first reaction tank (103), the second reaction tank (104) and the third reaction tank (105) are connected in sequence;
the device is characterized in that a sodium hypochlorite dosing piece is arranged in the first reaction tank (103), a sodium hydroxide dosing piece is arranged in the second reaction tank (104), and a sodium carbonate dosing piece and a flocculating agent dosing piece are arranged in the third reaction tank (105).
5. The acrylic resin production wastewater zero discharge system according to claim 4, characterized by further comprising a sedimentation tank (106) and a sludge drying member (107);
the sedimentation tank (106) is used for connecting the third reaction tank (105) and the filtering element;
the sludge drying is connected with a sludge outlet of the sedimentation tank (106).
6. The acrylic resin production wastewater zero discharge system as claimed in claim 5, wherein the filter member comprises a sand filter (108) and an ultrafilter (109);
the water inlet of the sand filter (108) is connected with the sedimentation tank (106), the water outlet of the sand filter (108) is connected with the water inlet of the ultra-filter (109), and the water outlet of the ultra-filter (109) is connected with the softened resin piece.
7. The acrylic resin production wastewater zero discharge system as claimed in claim 6, wherein the softening resin member employs a resin softener (110);
the water inlet of the resin softener (110) is connected with the ultrafilter (109), and the water outlet of the resin softener (110) is connected with the reverse osmosis piece.
8. The acrylic resin production wastewater zero discharge system as claimed in claim 7, wherein the reverse osmosis member comprises a primary reverse osmosis device (111) and a secondary reverse osmosis device (112);
the primary reverse osmosis element is connected with the resin softener (110);
the water outlet of the first-stage reverse osmosis device (111) is connected with the second-stage reverse osmosis device (112), and the concentrated water outlet of the second-stage reverse osmosis device (112) is connected with the first-stage reverse osmosis device (111).
9. The acrylic resin production wastewater zero discharge system as claimed in claim 8, wherein the reverse osmosis member further comprises a concentrated water reverse osmosis device (113), the concentrated water outlet of the primary reverse osmosis device (111) is connected with the concentrated water reverse osmosis device (113), and the concentrated water reverse osmosis device (113) is connected with the secondary reverse osmosis device (112).
10. The acrylic resin production wastewater zero discharge system as claimed in claim 9, characterized in that the evaporation system (114) is connected with the concentrated water reverse osmosis device (113), and a condensed water outlet of the evaporation system (114) is connected with the secondary reverse osmosis device (112).
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| CN202123392857.7U CN216513304U (en) | 2021-12-29 | 2021-12-29 | Zero discharge system for acrylic resin production wastewater |
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| CN202123392857.7U CN216513304U (en) | 2021-12-29 | 2021-12-29 | Zero discharge system for acrylic resin production wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259510A (en) * | 2022-06-07 | 2022-11-01 | 兰州石化职业技术学院 | Novel acrylic acid wastewater treatment device and wastewater treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115259510A (en) * | 2022-06-07 | 2022-11-01 | 兰州石化职业技术学院 | Novel acrylic acid wastewater treatment device and wastewater treatment method |
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