CN103373775B - Membrane method treatment process of circulation cooling water raw water and special system for membrane method treatment process - Google Patents
Membrane method treatment process of circulation cooling water raw water and special system for membrane method treatment process Download PDFInfo
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- CN103373775B CN103373775B CN201210113765.7A CN201210113765A CN103373775B CN 103373775 B CN103373775 B CN 103373775B CN 201210113765 A CN201210113765 A CN 201210113765A CN 103373775 B CN103373775 B CN 103373775B
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Abstract
The invention discloses a dedicated system for a membrane method treatment process of circulation cooling water raw water. The dedicated system includes an adjusting pond (1), a sterilization pond (2), a first booster pump (3), a PAC pond (4), a PAM pond (5) water inlet end, a settling pond (13), a middle pond (6), a sand leach pond system (7), a carbon filter system (8), a heat exchanger (9), a primary separating membrane system (10), a first redactor (11), a first sterilizer (14), a second booster pump (12), a reuse pond (15), a middle water tank (16), a softening resin system (17), a third booster pump (18), a secondary separating membrane system (19), a second high-pressure pump (20), a second sterilizer (21) and a slag-flushing raw water pond (22). Through the membrane method treatment process of the circulation cooling water raw water, the treated product water is recycled; the membrane method treatment process accords with a national industrial policy for energy conservation and emission reduction; and the circulation rate of a circulation cooling water raw water system is increased; daily water supplementation amount is decreased; the investment cost and the operation cost are reduced; and resources are saved.
Description
Technical field
The invention belongs to the former water zero discharge technical field of recirculated cooling water, specifically just relate to the former water membrane method treating process of a kind of recirculated cooling water dedicated system.
Background technology
The former water of recirculated cooling water is the water sport in process water, in industries such as oil, chemical industry, iron and steel, metallurgy, the water consumption of the former water of recirculated cooling water accounts for 50～90% of enterprise water use amount, and waste circulating cooling water repeating utilization factor only has 20～30%, causes water resource waste; Water coolant constantly recycling in system, can produce following problem:
The firstth, equipment scaling, the incrustation scale the most easily generating in circulating water system is calcium carbonate scale, and incrustation scale can make equipment accelerated deterioration, and the incrustation scale of tradition control is at present to prevent separating out of calcium carbonate; The secondth, metallic corrosion, the oxygen level of cooling circulating water, often up to 4～7mg/l, is dissolved with more electrodeless salt in water, and therefore corrodibility is very strong;
The 3rd is microbiological corrosion, and it is also relevant with the soft dirt of microorganisms that recirculated water produces corrosion.The soft dirt of biological clay is also that impact is conducted heat and causes one of factor of line clogging.
Often adopt at present make up water pre-treatment to soften, reduce PH, add the solution equipment scalings such as scale inhibitor; Cleaning machine washing plant and pipeline internal surface before system is driven, or adopt heavy dose of prefilming agent processing mode to solve metallic corrosion drawback.Employing simultaneously adds the method such as oxidizing bactericide or non oxidizing bactericide, water cooling tower brushing antifouling varnish and carries out preventing microorganism corrosion.But traditional circulating water system treatment process cannot fundamentally solve the concentrated variety of issue causing of salt, and add that operating system complexity, the medicament expense of various water conditioners is very high, not easy to operate, operational management cost is very high.
Summary of the invention
The object of the invention is for directly outer row of traditional waste circulating cooling water, not only make water resource waste serious, and can produce the shortcoming of polluting to environment, provide the former water membrane method treating process of a kind of recirculated cooling water dedicated system, by the former water membrane method treating process of recirculated cooling water, make product water circulation use after treatment, adapt to the industry policy that national energy-saving reduces discharging, improve the cycling rate of the former water system of recirculated cooling water, the rate of water make-up that reduces every day, reduce investment and working cost, economize on resources.
Technical scheme
In order to realize above-mentioned technical purpose, the present invention designs the former water membrane method treating process of a kind of recirculated cooling water, it is characterized in that, it comprises following step: first the former water of the recirculated cooling water of collecting is carried out to pre-treatment: the former water of the recirculated cooling water of collecting is carried out to water yield adjusting, make fluoride waste water quality even, will carry out sterilization precipitation through the former water of the uniform recirculated cooling water of water quality simultaneously, and filter and remove SS, larger molecular organics and colloid; Then carrying out membrane separation through the former water of pretreated recirculated cooling water, the former water of recirculated cooling water is carried out to further purifying treatment and obtain producing water and dense water; Last membrane separation obtains producing water and carries out reuse, and dense water carries out flushing cinder.
Further, described membrane separation comprises that two-stage separates, when the first step separates, the former water temp of recirculated cooling water is between 15～30 DEG C, and pressure is between 1.0～1.6MPa, and PH is between 6～9, ORP is less than 220mv, and electricity is led and is less than between 1500 μ s/cm, and calcium contents is less than between 100mg/L.
When the second stage separates, fluoride waste temperature is between 20～40 DEG C, and pressure is between 1.8～3.0MPa, and PH is that between 6～9, ORP is less than 220mv, and electricity is led and is less than between 5000 μ s/cm, and calcium contents is less than between 330mg/L.
By the dedicated system of the former water membrane method treating process of a kind of recirculated cooling water of above-mentioned technological design, it comprises equalizing tank, sterilization pond feed-water end is received in equalizing tank water side, on equalizing tank and sterilization pond connecting pipeline, the first topping-up pump is housed, PAC pond feed-water end is received in water side, sterilization pond, PAM pond feed-water end is received in water side, PAC pond, settling tank is received in water side, PAM pond, settling tank water outlet enters intermediate pool, Sand Filtration System feed-water end is received in intermediate pool water side, charcoal filter system feed-water end is received in Sand Filtration System water side, interchanger feed-water end is received in charcoal filter system water side, flash trapping stage film system feed-water end is received in interchanger water side, on interchanger and flash trapping stage film system connecting pipeline, the first reducer is housed successively, the first sterilizer and the second topping-up pump, flash trapping stage film system is produced water water side and is received reuse pool, dense water water side is received and is entered intermediate water tank, soften resin system is received in intermediate water tank water side, on intermediate water tank and soften resin system connecting pipeline, the 3rd topping-up pump is housed, the second-order separation film system feed-water end is received in soften resin system water side, on soften resin system and the second-order separation film system connecting pipeline, the second high-pressure pump and the second sterilizer are housed successively, the second-order separation film system is produced water out and is received reuse pool, dense water out is received the former pond of flushing cinder.
It is 2～12 that the filtering membrane that described flash trapping stage film system, the second-order separation film system adopt is suitable for PH, tolerates 50 DEG C of temperature.
Further, the 4th topping-up pump is equipped with in described reuse pool water side.
Further, be connected to the first film and clean water tank water side on the pipeline between described interchanger and the second topping-up pump, described the first film cleans water tank feed-water end and receives He Chanshui water side, the dense water of flash trapping stage film system water side;
On described intermediate water tank and the 3rd topping-up pump connecting pipeline, be connected to the second film and clean water tank water side, described the second film cleans water tank feed-water end and receives He Chanshui water side, the dense water of the second-order separation film system water side.
Further, in described equalizing tank, in pond, mixing system and liquidometer are housed.
Beneficial effect
The present invention is directed to directly outer row of traditional waste circulating cooling water, not only make water resource waste serious, and can produce the shortcoming of polluting to environment, provide the former water membrane method treating process of a kind of recirculated cooling water dedicated system, by the former water membrane method treating process of recirculated cooling water, make product water circulation use after treatment, adapt to the industry policy that national energy-saving reduces discharging, improve the cycling rate of the former water system of recirculated cooling water, the rate of water make-up that reduces every day, reduce investment and working cost, economize on resources.
Brief description of the drawings
Accompanying drawing 1 is process flow diagram of the present invention.
Accompanying drawing 2 is anterior annexations of interchanger in the first embodiment of the present invention.
Accompanying drawing 3 is interchanger rear portion annexations in the first embodiment of the present invention.
Accompanying drawing 4 be in the present invention in the second embodiment the first film clean water tank scheme of installation.
Accompanying drawing 5 be in the present invention in the second embodiment the second film clean water tank scheme of installation.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As accompanying drawing 1, shown in 2 and 3, first embodiment of the invention: the dedicated system of the former water membrane method treating process of a kind of recirculated cooling water, it comprises equalizing tank 1, sterilization pond 2 feed-water ends are received in equalizing tank 1 water side, on equalizing tank 1 and sterilization pond 2 connecting pipelines, the first topping-up pump 3 is housed, PAC pond 4 feed-water ends are received in 2 water sides, sterilization pond, PAM pond 5 feed-water ends are received in 4 water sides, PAC pond, settling tank 13 is received in 5 water sides, PAM pond, settling tank 13 water outlets enter intermediate pool 6, Sand Filtration System 7 feed-water ends are received in intermediate pool 6 water sides, charcoal filter system 8 feed-water ends are received in Sand Filtration System 7 water sides, interchanger 9 feed-water ends are received in charcoal filter system 8 water sides, flash trapping stage film system 10 feed-water ends are received in interchanger 9 water sides, on interchanger 9 and flash trapping stage film system 10 connecting pipelines, the first reducer 11 is housed successively, the first sterilizer 14 and the second topping-up pump 12, flash trapping stage film system 10 is produced water water side and is received reuse pool 15, dense water water side is received and is entered intermediate water tank 16, soften resin system 17 is received in intermediate water tank 16 water sides, on intermediate water tank 16 and soften resin system 17 connecting pipelines, the 3rd topping-up pump 18 is housed, the second-order separation film system 19 feed-water ends are received in soften resin system 17 water sides, on soften resin system 17 and the second-order separation film system 19 connecting pipelines, the second high-pressure pump 20 and the second sterilizer 21 are housed successively, the second-order separation film system 19 is produced water out and is received reuse pool 15, dense water out is received the former pond 22 of flushing cinder.
It is 2～12 that the filtering membrane that described flash trapping stage film system 10, the second-order separation film system 19 adopt is suitable for PH, tolerates 50 DEG C of temperature.
The 4th topping-up pump 23 is equipped with in described reuse pool 15 water sides.
Described equalizing tank 1 is equipped with mixing system 26 and liquidometer 27 in interior pond.
The principle of work of the present embodiment is such: first the former water of the recirculated cooling water of collecting is carried out to pre-treatment: the former water of the recirculated cooling water of collecting is carried out to water yield adjusting by equalizing tank 1, make fluoride waste water quality even, will carry out sterilization precipitation, and filter and remove SS, larger molecular organics and colloid by sterilization pond 2, Sand Filtration System 7 and charcoal filter system 8 through the former water of the uniform recirculated cooling water of water quality simultaneously; Then carrying out membrane separation through the former water of pretreated recirculated cooling water by flash trapping stage film system 10, the second-order separation film system 19, the former water of recirculated cooling water is carried out to further purifying treatment and obtain producing water and dense water, described membrane separation comprises that two-stage separates, when the first step separates, the former water temp of recirculated cooling water is between 15～30 DEG C, pressure is between 1.0～1.6MPa, PH is between 6～9, ORP is less than 220mv, electricity is led and is less than between 1500 μ s/cm, and calcium contents is less than between 100mg/L.; When the second stage separates, fluoride waste temperature is between 20～40 DEG C, and pressure is between 1.8～3.0MPa, and PH is that between 6～9, ORP is less than 220mv, and electricity is led and is less than between 5000 μ s/cm, and calcium contents is less than between 330mg/L.Last membrane separation obtains producing water and receives reuse pool 15 and carry out reuse, and dense water is received the former pond 22 of flushing cinder and carried out flushing cinder; In the interior pond of equalizing tank 1, mixing system 26 is housed and liquidometer 27 is controlled flooding quantity.
The present invention is directed to directly outer row of traditional waste circulating cooling water, not only make water resource waste serious, and can produce the shortcoming of polluting to environment, provide the former water membrane method treating process of a kind of recirculated cooling water dedicated system, by the former water membrane method treating process of recirculated cooling water, make product water circulation use after treatment, adapt to the industry policy that national energy-saving reduces discharging, improve the cycling rate of the former water system of recirculated cooling water, the rate of water make-up that reduces every day, reduce investment and working cost, economize on resources.
As shown in attached Figure 4 and 5, the second embodiment of the present invention, in order to improve the efficiency of film separating system, on the pipeline between described interchanger 9 and the second topping-up pump 12, be connected to the first film and clean water tank 24 water sides, described the first film cleans water tank 24 feed-water ends and receives flash trapping stage film system 10 He Chanshui water sides, dense water water side; On described intermediate water tank 16 and the 3rd topping-up pump 18 connecting pipelines, be connected to the second film and clean water tank 25 water sides, described the second film cleans water tank 25 feed-water ends and receives the second-order separation film system 19 He Chanshui water sides, dense water water side.
Invention which is intended to be protected is not limited only to the technical scheme in the present invention, and all innovation and creation that are subject to the present invention to enlighten gained all fall into protection scope of the present invention.
Claims (4)
1. the dedicated system of the former water membrane method treating process of recirculated cooling water, it is characterized in that: it comprises equalizing tank (1), sterilization pond (2) feed-water end is received in equalizing tank (1) water side, on equalizing tank (1) and sterilization pond (2) connecting pipeline, the first topping-up pump (3) is housed, PAC pond (4) feed-water end is received in water side, sterilization pond (2), PAM pond (5) feed-water end is received in water side, PAC pond (4), settling tank (13) is received in water side, PAM pond (5), settling tank (13) water outlet enters intermediate pool (6), Sand Filtration System (7) feed-water end is received in intermediate pool (6) water side, charcoal filter system (8) feed-water end is received in Sand Filtration System (7) water side, interchanger (9) feed-water end is received in charcoal filter system (8) water side, flash trapping stage film system (10) feed-water end is received in interchanger (9) water side, on interchanger (9) and flash trapping stage film system (10) connecting pipeline, the first reducer (11) is housed successively, the first sterilizer (14) and the second topping-up pump (12), flash trapping stage film system (10) is produced water water side and is received reuse pool (15), dense water water side is received and is entered intermediate water tank (16), soften resin system (17) is received in intermediate water tank (16) water side, on intermediate water tank (16) and soften resin system (17) connecting pipeline, the 3rd topping-up pump (18) is housed, the second-order separation film system (19) feed-water end is received in soften resin system (17) water side, on soften resin system (17) and the second-order separation film system (19) connecting pipeline, the second high-pressure pump (20) and the second sterilizer (21) are housed successively, the second-order separation film system (19) is produced water out and is received reuse pool (15), dense water out is received the former pond of flushing cinder (22),
The filtering membrane applicable pH that described flash trapping stage film system (10) and the second-order separation film system (19) adopt is 2～12, tolerates 50 DEG C of temperature.
2. the dedicated system of the former water membrane method treating process of a kind of recirculated cooling water as claimed in claim 1, is characterized in that: the 4th topping-up pump (23) is equipped with in described reuse pool (15) water side.
3. the dedicated system of the former water membrane method treating process of a kind of recirculated cooling water as claimed in claim 1, it is characterized in that: on the pipeline between described interchanger (9) and the second topping-up pump (12), be connected to the first film and clean water tank (24) water side, described the first film cleans water tank (24) feed-water end and receives He Chanshui water side, the dense water of flash trapping stage film system (10) water side;
On described intermediate water tank (16) and the 3rd topping-up pump (18) connecting pipeline, be connected to the second film and clean water tank (25) water side, described the second film cleans water tank (25) feed-water end and receives He Chanshui water side, the dense water of the second-order separation film system (19) water side.
4. the dedicated system of the former water membrane method treating process of a kind of recirculated cooling water as claimed in claim 1, is characterized in that: mixing system (26) and liquidometer (27) are housed in the interior pond of described equalizing tank (1).
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| CN201210113765.7A CN103373775B (en) | 2012-04-17 | 2012-04-17 | Membrane method treatment process of circulation cooling water raw water and special system for membrane method treatment process |
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| CN103373775B true CN103373775B (en) | 2014-10-22 |
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| CN105439331B (en) * | 2015-12-02 | 2018-06-19 | 王刚 | Recirculated cooling water dialysis system |
| CN106145289A (en) * | 2016-08-17 | 2016-11-23 | 聂麒曌 | A kind of novel composite flocculating agent to fluoride wastewater treatment and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001766A (en) * | 2010-10-29 | 2011-04-06 | 湖州欣格膜科技有限公司 | Defluorinating method of photovoltaic wastewater |
| CN102126798A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for reclaiming fluorine-containing and ammonia nitrogen-containing waste water in electronic industry |
| CN202529932U (en) * | 2012-04-17 | 2012-11-14 | 上海晶宇环境工程有限公司 | Special system for raw circulating cooling water membrane treatment process |
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| JP4633079B2 (en) * | 2007-03-09 | 2011-02-16 | 三洋電機株式会社 | Method and apparatus for treating fluorine-containing water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102001766A (en) * | 2010-10-29 | 2011-04-06 | 湖州欣格膜科技有限公司 | Defluorinating method of photovoltaic wastewater |
| CN102126798A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for reclaiming fluorine-containing and ammonia nitrogen-containing waste water in electronic industry |
| CN202529932U (en) * | 2012-04-17 | 2012-11-14 | 上海晶宇环境工程有限公司 | Special system for raw circulating cooling water membrane treatment process |
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