CN114074999A - Equipment and method for treating evaporated condensate water - Google Patents
Equipment and method for treating evaporated condensate water Download PDFInfo
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- CN114074999A CN114074999A CN202111664821.1A CN202111664821A CN114074999A CN 114074999 A CN114074999 A CN 114074999A CN 202111664821 A CN202111664821 A CN 202111664821A CN 114074999 A CN114074999 A CN 114074999A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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Abstract
本发明公开了一种处理蒸发冷凝水的装备及方法，包括一级RO处理系统、二级RO处理系统、三级RO处理系统，一级RO处理系统、二级RO处理系统、三级RO处理系统设置在同一个支架上，支架上设置有压力表面板、控制柜，一级RO处理系统、二级RO处理系统、三级RO处理系统共用压力表面板与控制柜。在实际使用时通过三级RO设备和单级DTRO设备对蒸发冷凝水进行处理，处理达到排放标准或回用水标准；一级RO处理蒸发冷凝水，三级RO处理一级RO的浓缩液，DTRO设备处理三级RO浓缩液，二级RO处理一级RO、三级RO以及DTRO的产水，多级处理，提高产水回收率；三级RO系统集成在一个设备上，节约成本，运输方便；三级RO，每一级都是独立运行，设备开机率高，生产效率高。
The invention discloses a device and method for treating evaporative condensed water, including a primary RO treatment system, a secondary RO treatment system, a tertiary RO treatment system, a primary RO treatment system, a secondary RO treatment system, and a tertiary RO treatment system The system is set on the same bracket, and the bracket is provided with a pressure surface plate and a control cabinet. The primary RO treatment system, the secondary RO treatment system, and the tertiary RO treatment system share the pressure surface plate and the control cabinet. In actual use, the evaporative condensate water is treated by the three-stage RO equipment and the single-stage DTRO equipment, and the treatment meets the discharge standard or the reuse water standard; The equipment treats the tertiary RO concentrate, the secondary RO treats the permeate water of the primary RO, the tertiary RO and the DTRO, and the multi-stage treatment improves the recovery rate of the permeate; ; Three-level RO, each level operates independently, with high equipment startup rate and high production efficiency.
Description
Technical Field
The invention relates to the field of evaporative condensate water treatment, in particular to equipment and a method for treating evaporative condensate water.
Background
In the water treatment zero discharge project, evaporative crystallization is a very important process, solid-liquid separation is carried out on high-concentration brine, solid salts are separated out, water in the brine forms steam evaporation, the steam forms liquid water in a condensation recovery device and enters a collecting tank, the contents of cod, ammonia nitrogen and the like in the evaporative condensate are relatively high and cannot reach the discharge standard or the reuse water standard, so that the evaporative condensate needs to be treated, and the treatment reaches the discharge standard or the reuse water standard.
The evaporation condensate water has low salt content, but the COD and ammonia nitrogen content are higher, so the membrane method treatment is needed to remove the COD and the ammonia nitrogen, and in order to ensure that the water is qualified and the recovery rate of the produced water is needed, the multi-stage treatment is needed to be carried out on the evaporation condensate water, so the expected effect is achieved.
Disclosure of Invention
The invention solves the problems that the prior set of RO equipment integrates two-stage RO at most, the first-stage RO treats evaporated condensate water, the second-stage RO only treats the water produced by the first-stage RO, the recovery rate of the produced water is low, the first-stage RO concentrated solution is directly discharged to an evaporation system, the treatment capacity and the load of an evaporator are increased day by day, and the reduction of the concentrated solution is not realized, and provides equipment and a method for treating the evaporated condensate water. And each stage of the three-stage RO runs independently without mutual interference, the equipment is high in starting, and the whole set of equipment is convenient to transport.
The invention is realized by the following technical scheme:
the utility model provides a handle equipment of evaporation comdenstion water, includes one-level RO processing system, second grade RO processing system, tertiary RO processing system, one-level RO processing system, second grade RO processing system, tertiary RO processing system set up on same support, be provided with pressure surface plate, switch board on the support, one-level RO processing system, second grade RO processing system, tertiary RO processing system share pressure surface plate and switch board, one-level RO processing system includes: one-level RO booster pump, one-level RO produce water flowmeter, one-level RO intake flowmeter, one-level RO wash electric ball valve, one-level RO concentrate bypass valve, one-level RO air-vent valve, second grade RO processing system includes: the water flowmeter is produced to second grade RO booster pump, the dense hydrologic cycle flowmeter of second grade RO, second grade RO inflow flowmeter, second grade RO, and the motorised valve is washed to second grade RO, second grade RO air-vent valve, second grade RO concentrate bypass valve, tertiary RO processing system includes: the three-level RO water production flow meter, the three-level RO concentrated water circulation flow meter, the three-level RO water inlet flow meter, the three-level RO booster pump, the three-level RO concentrated liquid bypass valve, the three-level RO pressure regulating valve and the three-level RO flushing electric valve.
Furthermore, the equipment for treating the evaporation condensate water is characterized in that three primary RO membrane pressure containers are arranged in the primary RO treatment system, each primary RO membrane pressure container is provided with six RO membranes, and the primary RO treatment system is also internally provided with a filter, an electric ball valve with unqualified produced water, a high-pressure pipeline, a pressure regulating valve, a connecting pipeline and a manual valve.
Further, the equipment for treating the evaporated condensate water is characterized in that the primary RO concentrated solution bypass valve is arranged to be a high-pressure electric ball valve.
Furthermore, the equipment for treating the evaporation condensate water is characterized in that three secondary RO membrane pressure containers are arranged in the secondary RO treatment system, each secondary RO membrane pressure container is provided with six RO membranes, and the secondary RO treatment system is also internally provided with a filter, an electric ball valve with unqualified produced water, a high-pressure pipeline, a pressure regulating valve, a connecting pipeline and a manual valve.
Furthermore, the equipment for treating the evaporation condensate water is characterized in that one third-stage RO membrane pressure container is arranged in the third-stage RO treatment system, six RO membranes are arranged in each third-stage RO membrane pressure container, and a filter, an electric ball valve with unqualified produced water, a high-pressure pipeline, a pressure regulating valve, a connecting pipeline and a manual valve are further arranged in the third-stage RO treatment system.
Further, a method of treating evaporated condensate, the method comprising:
(1) the evaporation condensate water at first gets into one-level RO front end air supporting, degreases, ensures that the grease that the quality of water that gets into the RO equipment contains is lower better more, and one-level RO air supporting goes out water and gets into one-level RO water inlet tank, wherein includes: two first-stage RO water inlet tanks, namely, a first aeration tank and a second alkali tank, wherein the water is delivered to the front of a first-stage RO booster pump by a first-stage RO water supply pump, the water is delivered to an RO membrane by a booster pump, the water produced by the first-stage RO enters a second-stage RO water inlet tank, the two second-stage RO water inlet tanks, namely, the first aeration tank and the second acid tank, and the concentrated water of the first-stage RO enters a third-stage air flotation RO for secondary oil removal;
(2) the three-level RO air floatation effluent enters a three-level RO water inlet tank, two three-level RO water inlet tanks are used for first aeration and second alkali addition, the water is sent to the front of a three-level RO booster pump by a three-level RO water supply pump, the water is supplied to an RO membrane by the booster pump, the produced water of the three-level RO enters a two-level RO water inlet tank, the concentrated water of the three-level RO enters a water inlet tank of a DTRO device, two DTRO water inlet tanks are used for second acid addition;
(3) water in the water inlet tank of the DTRO equipment is delivered to the front of a DTRO booster pump by a DTRO water supply pump, the water is supplied to a DTRO membrane by the booster pump, the water produced by the DTRO enters a secondary RO water inlet tank, and the concentrated water of the DTRO goes to an evaporation system;
(4) the water in the secondary RO water inlet tank is delivered to the front of a secondary RO booster pump by a secondary RO water supply pump, the water is supplied to an RO membrane by the booster pump, the produced water of the secondary RO enters a water producing pool, and the concentrated water of the secondary RO returns to the water inlet tank of the primary RO;
(5) and (3) aerating and adding alkali into the water inlet tanks of the first-level RO and the third-level RO, wherein ammonia nitrogen exists in a gas form under an alkaline condition, part of ammonia gas in water is removed by aeration, and adding acid into the water inlet tanks of the DTRO and the second-level RO, wherein the ammonia nitrogen exists in an ammonium salt form under an acidic condition and can be intercepted by a membrane after entering the membrane, so that the ammonia nitrogen in the effluent is qualified.
In summary, the following beneficial effects of the invention are:
1. the invention relates to equipment and a method for treating evaporated condensate, which treat the evaporated condensate through three-level RO equipment and single-level DTRO equipment, wherein the treatment reaches the discharge standard or the reuse water standard; the first-stage RO is used for treating evaporated condensate water, the third-stage RO is used for treating concentrated solution of the first-stage RO, the DTRO equipment is used for treating concentrated solution of the third-stage RO, the second-stage RO is used for treating water produced by the first-stage RO, the third-stage RO and the DTRO, and the multi-stage treatment is adopted, so that the recovery rate of the produced water is improved; the three-level RO system is integrated on one device, so that the cost is saved and the transportation is convenient; and each stage of three-stage RO operates independently, so that the device has high start-up rate and high production efficiency.
2. The invention relates to equipment and a method for treating evaporated condensate water, wherein a three-level RO system is integrated on an equipment bracket, a control cabinet and a pressure surface plate are the same and are highly integrated equipment, and the important point is to protect the three-level RO integrated equipment. The process is a brand new evaporation condensate water treatment process, is an innovative process, and greatly improves the recovery rate and realizes the decrement of concentrated solution.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a process flow diagram of the evaporative condensate treatment method of the present invention.
Fig. 2 is a front view of the structure of the present invention.
FIG. 3 is a top view of the structure of the present invention.
Fig. 4 is a left side view of the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-a one-stage RO booster pump, 2-a two-stage RO booster pump, 3-a pressure surface plate, 4-a one-stage RO produced water flowmeter, 5-a one-stage RO inflow water flowmeter, 6-a two-stage RO concentrate circulation flowmeter, 7-a two-stage RO inflow water flowmeter, 8-a two-stage RO produced water flowmeter, 9-a three-stage RO produced water flowmeter, 10-a three-stage RO concentrate circulation flowmeter, 11-a three-stage RO inflow water flowmeter, 12-a control cabinet, 13-a three-stage RO booster pump, 14-a one-stage RO flushing electric ball valve, 15-a two-stage RO flushing electric valve, 16-a one-stage RO concentrate bypass valve, 17-a one-stage RO pressure regulating valve, 18-a two-stage RO pressure regulating valve, 19-a two-stage RO concentrate bypass valve, 20-a three-stage RO concentrate bypass valve, 21-a three-stage RO pressure regulating valve, 22-three-stage RO flushing electric valve, 23-one-stage RO high-pressure pipeline, 24-two-stage RO high-pressure pipeline, 25-three-stage RO high-pressure pipeline, 26-one-stage RO pressure vessel, 27-two-stage RO pressure vessel, 28-three-stage RO pressure vessel, 29-one-stage RO filter, 30-two-stage RO filter and 31-three-stage RO filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1, an equipment for treating evaporation condensate water, including one-level RO treatment system, second grade RO treatment system, tertiary RO treatment system, one-level RO treatment system, second grade RO treatment system, tertiary RO treatment system set up on same support, be provided with manometer panel 3, switch board 12 on the support, one-level RO treatment system, second grade RO treatment system, tertiary RO treatment system share manometer panel 3 and switch board 12, one-level RO treatment system includes: one-level RO booster pump 1, one-level RO produce water flowmeter 4, one-level RO intake flowmeter 5, one-level RO wash electric ball valve 14, one-level RO concentrate bypass valve 16, one-level RO air-vent valve 17, second grade RO processing system includes: the second grade RO booster pump 2, the thick water circulation flowmeter of second grade RO 6, the flowmeter of intaking of second grade RO 7, the flowmeter of producing water 8, second grade RO wash motorised valve 15, second grade RO air-vent valve 18, second grade RO concentrate bypass valve 19, tertiary RO processing system includes: a three-level RO water production flow meter 9, a three-level RO concentrated water circulation flow meter 10, a three-level RO water inlet flow meter 11, a three-level RO booster pump 13, a three-level RO concentrated liquid bypass valve 20, a three-level RO pressure regulating valve 21 and a three-level RO flushing electric valve 22.
Specifically, the equipment for treating the evaporation condensate water is characterized in that three primary RO pressure containers 26 are arranged in the primary RO treatment system, each primary RO pressure container 26 is provided with six RO membranes, and the primary RO treatment system is also internally provided with a primary RO high-pressure pipeline 23, a primary RO filter 29, an electric ball valve with unqualified produced water, a high-pressure pipeline, a pressure regulating valve, a connecting pipeline and a manual valve.
In particular to equipment for treating evaporated condensate, the primary RO concentrated solution bypass valve 16 is set as a high-pressure electric ball valve.
Specifically, the equipment for treating the evaporated condensate water is characterized in that three secondary RO pressure containers 27 are arranged in the secondary RO treatment system, each secondary RO pressure container 27 is provided with six RO membranes, and the secondary RO treatment system is also internally provided with a secondary RO filter 30, an electric ball valve with unqualified produced water, a secondary RO high-pressure pipeline 24, a pressure regulating valve, a connecting pipeline and a manual valve.
Specifically, the equipment for treating the evaporation condensate water is characterized in that a three-stage RO pressure container 28 is arranged in the three-stage RO treatment system, six RO membranes are arranged in each three-stage RO pressure container 28, and a three-stage RO filter 31, an electric ball valve with unqualified produced water, a three-stage RO high-pressure pipeline 25, a pressure regulating valve, a connecting pipeline and a manual valve are further arranged in the three-stage RO treatment system.
Specifically, the evaporation condensed water treatment method comprises the following steps:
(1) the evaporation condensate water at first gets into one-level RO front end air supporting, degreases, ensures that the grease that the quality of water that gets into the RO equipment contains is lower better more, and one-level RO air supporting goes out water and gets into one-level RO water inlet tank, wherein includes: two first-stage RO water inlet tanks are provided, the first aeration is carried out, the second alkali is added, water is sent to the front of the first-stage RO booster pump 1 by a first-stage RO water supply pump, the water is supplied to an RO membrane by the first-stage RO booster pump 1, the water produced by the first-stage RO enters the second-stage RO water inlet tank, the two second-stage RO water inlet tanks are provided, the first aeration is carried out, the second acid is added, and the concentrated water of the first-stage RO enters the third-stage RO air flotation for secondary oil removal;
(2) the three-level RO air floatation effluent enters a three-level RO water inlet tank, two three-level RO water inlet tanks are provided, the first aeration and the second alkali addition are carried out, water is delivered to the front part of a three-level RO booster pump 13 by a three-level RO water supply pump, water is supplied to an RO membrane by the booster pump, the produced water of the three-level RO enters a two-level RO water inlet tank, and the concentrated water of the three-level RO enters a water inlet tank of a DTRO device;
(3) water in the water inlet tank of the DTRO equipment is delivered to the front of a DTRO booster pump by a DTRO water supply pump, the water is supplied to a DTRO membrane by the booster pump, the water produced by the DTRO enters a secondary RO water inlet tank, and the concentrated water of the DTRO goes to an evaporation system;
(4) the water in the secondary RO water inlet tank is sent to the front of a secondary RO booster pump 2 by a secondary RO water supply pump, the water is supplied to an RO membrane by the booster pump, the produced water of the secondary RO enters a water producing pool, and the concentrated water of the secondary RO returns to the water inlet tank of the primary RO;
(5) and (3) aerating and adding alkali into water inlet tanks of the first-stage RO and the third-stage RO, removing a part of ammonia gas in water by aeration, adding acid into water inlet tanks of the DTRO and the second-stage RO, and allowing ammonia nitrogen to exist in an ammonium salt form under an acidic condition and to be intercepted by a membrane after entering the membrane, so that the ammonia nitrogen in the effluent is qualified.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
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| CN202111664821.1A CN114074999A (en) | 2021-12-31 | 2021-12-31 | Equipment and method for treating evaporated condensate water |
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| CN202111664821.1A CN114074999A (en) | 2021-12-31 | 2021-12-31 | Equipment and method for treating evaporated condensate water |
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2021
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| US20160031726A1 (en) * | 2013-03-14 | 2016-02-04 | General Electric Company | Membrane filtration system with concentrate staging and concentrate recirculation, switchable stages, or both |
| CN110066051A (en) * | 2019-05-23 | 2019-07-30 | 宁波斯蒂罗科技有限公司 | A kind of processing method of the dope evaporation condensed water of landfill leachate |
| CN210620490U (en) * | 2019-08-08 | 2020-05-26 | 厦门嘉戎技术股份有限公司 | Leachate concentrated solution processing apparatus and recoverable zero discharge system |
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