CN109179753A - A kind of the demineralized water production technology and its special equipment of coal chemical industry - Google Patents
A kind of the demineralized water production technology and its special equipment of coal chemical industry Download PDFInfo
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- CN109179753A CN109179753A CN201811086813.1A CN201811086813A CN109179753A CN 109179753 A CN109179753 A CN 109179753A CN 201811086813 A CN201811086813 A CN 201811086813A CN 109179753 A CN109179753 A CN 109179753A
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- Prior art keywords
- water
- reverse osmosis
- concentrated
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- coal chemical
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Classifications
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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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses demineralized water production technologies and its special equipment of a kind of coal chemical industry, including reuse pool, first-stage reverse osmosis device, adsorbent equipment, second level reverse osmosis apparatus, oxidation reactor, mixed-bed resin tank and product pond etc..The technical process by by coal chemical industrial waste water handle it is up to standard after waste water recycling, then recycle-water using the series of process such as first-stage reverse osmosis, absorption, two-pass reverse osmosis, oxidation reaction, resin adsorption handle after obtain product water (resistivity >=5M Ω cm).This technique can be effectively removed remaining micro-content organism in recycle-water, so as to extend the regeneration period of mixed-bed resin, improve the production efficiency of demineralized water.
Description
Technical field
The invention belongs to coal chemical industry technical field of waste water processing, and in particular to a kind of desalination of coal chemical industry is aquatic
Production. art and its special equipment.
Background technique
Coal chemical industry water consumption is big, and water pollution is serious, generates high risks to environment.Currently, coal chemical industry allows
The project put into operation is mostly zero-emission project, and the waste water of generation carries out reuse and recycling is recycled with realistic meaning, such as
It is extremely urgent what improves the problems such as recycle-water cyclic utilization rate.
Currently, coal chemical industry intermediate water reuse system mostly uses two steps ro, mixed-bed resin desalination process is used.Mixed bed
Resin carries out ion exchange in water, carries out the purifying of water, uses and recycles in water power dodar to the 0.2 following return system of μ S/cm
It uses.Resin has certain suction-operated to small organic molecule, and after absorption reaches saturation, organic molecule passes through mixed bed, causes
Resin water outlet conductivity rises, mixed bed operation is abnormal, water-making ability decline, needs frequent progress resin regeneration, influences entire
Coal chemical industry water system balance causes recycle-water can not internal consumption.Effectively to solve the problems, such as that mixed bed water-making ability declines, key exists
In the removal of mixed bed entering organic matter of water.Contain micro-content organism currently, testing and analyzing in discovery water to recycle-water, minimizing technology has
It is undesirable that effect is used alone in advanced oxidation processes, physisorphtion, biochemical method etc..
Summary of the invention
The present invention, which carries out easy in inactivation in desalting process for mixed-bed resin, leads to frequent regeneration and the low skill of water-making ability
Art problem provides the demineralized water production technology and its special equipment of a kind of coal chemical industry, effectively removes remaining in recycle-water
Micro-content organism solves the problems, such as that mixed bed water-making ability declines, extends the regeneration period of mixed-bed resin, improves reuse water circulation use
Rate reduces Enterprises water operation cost.
Technical solution
In order to achieve the above technical purposes, the present invention provides a kind of demineralized water production technologies of coal chemical industry, special
Sign is, it including the following steps:
(1) first-stage reverse osmosis: the recycle-water of coal chemical industrial waste water after processing is concentrated and separated, and obtains first-stage reverse osmosis production
Water and concentrated water；
(2) it adsorbs: the first-stage reverse osmosis of step (1) being produced into water and carries out adsorption treatment, removal organic matter obtains absorption water outlet；
(3) oxidation reaction: the absorption water outlet in step (2) is subjected to oxidation reaction, remaining organic matter in water removal is gone to obtain
Oxidation reaction water outlet；
(4) two-pass reverse osmosis: oxidation reaction water outlet in step (3) is concentrated and separated again, obtains two-pass reverse osmosis
Produce water and concentrated water；
(5) resin adsorption: two-pass reverse osmosis obtained in step (4) is produced into water and carries out mixed-bed resin absorption, obtains desalination
Water, that is, product water.
Further, in the step (1) during the concentration and separation of first-stage reverse osmosis, time of coal chemical industrial waste water after processing
With water pH value between 5.5~7.5, operating pressure the salinity in recycle-water is concentrated, shape between 0.6~1.2MPa
Water and concentrated water are produced at first-stage reverse osmosis, concentrated water carries out zero discharge treatment, produces water and carries out adsorption reaction.
Further, adsorbent absorption is utilized to guarantee organic matter removal in the step (2) during adsorption treatment.
Further, the absorption water outlet pH value of oxidation reaction is 7.0, the residence time 30~60 minutes in the step (3), oxygen
Change reaction water outlet and carries out two-pass reverse osmosis processing.
Further, in the step (4) during the concentration and separation of two-pass reverse osmosis, the pH value of oxidation reaction water outlet exists
Between 5.5~7.5, the production water of first-stage reverse osmosis is concentrated between 0.6~1.0MPa for operating pressure, and it is anti-to form second level
Infiltration produces water and concentrated water, and concentrated water carries out reuse, produces water and carries out mixed-bed resin adsorption treatment.
A kind of special equipment of the demineralized water production technology of coal chemical industry, it is characterised in that: it includes first-stage reverse osmosis
Device, adsorbent equipment, oxidation reactor, second level reverse osmosis apparatus, mixed-bed resin tank, raw water box, the first water producing tank, the first water inlet
Case, the second inlet tank, the second water producing tank, product water tank, third water producing tank, the first intake pump, the second intake pump, third water inlet
Pump, the 4th intake pump and the 5th intake pump；
The raw water box is connect with first-stage reverse osmosis device, and the first intake pump is housed on connecting line；The level-one reverse osmosis
The concentrated water end of saturating device is connect with third water producing tank, is produced water end (W.E.) and is connect with the first water producing tank；First water producing tank and absorption fill
Connection is set, the second intake pump is housed on connecting line；The water outlet of the adsorbent equipment is connect with the first inlet tank；Described first
Inlet tank is connect with oxidation reactor device, and third intake pump is housed on connecting line；Oxidation reactor device water outlet
It is connect with the second inlet tank；Second inlet tank is connect with second level reverse osmosis apparatus, and the 4th intake pump is housed on connecting line；
The concentrated water end of the second level reverse osmosis apparatus is connect with raw water box, is produced water end (W.E.) and is connect with the second water producing tank；Second water producing tank
It is connect with mixed-bed resin tank, the 5th intake pump is housed on connecting line.
Beneficial effect
A kind of demineralized water production technology and its special equipment for coal chemical industry provided by the invention, effectively removes back
With micro-content organism remaining in water, solves the problems, such as that mixed bed water-making ability declines, extend the regeneration period of mixed-bed resin, improve back
With water circulation use rate, Enterprises water operation cost is reduced.
Detailed description of the invention
Attached drawing 1 is the process flow chart of the embodiment of the present invention.
Attached drawing 2 is the equipment of the embodiment of the present invention connection relationship diagram.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
As shown in Fig. 2, the special equipment of the demineralized water production technology of a kind of coal chemical industry, it includes first-stage reverse osmosis
Device 1, adsorbent equipment 2, oxidation reactor 3, second level reverse osmosis apparatus 4, mixed-bed resin tank 5, raw water box 6, the first water producing tank 7,
First inlet tank 8, the second inlet tank 9, the second water producing tank 10, product water tank 11, third water producing tank 12, the first intake pump 13,
Two intake pumps 14, third intake pump 15, the 4th intake pump 16 and the 5th intake pump 17；
The raw water box 6 is connect with first-stage reverse osmosis device 1, and the first intake pump 13 is housed on connecting line；The level-one
The concentrated water end of reverse osmosis unit 1 is connect with third water producing tank 13, is produced water end (W.E.) and is connect with the first water producing tank 7；First water producing tank 7
It is connect with adsorbent equipment 2, the second intake pump 14 is housed on connecting line；The water outlet of the adsorbent equipment 2 and the first inlet tank 8
Connection；First inlet tank 8 is connect with oxidation reactor device 3, and third intake pump 15 is housed on connecting line；The oxidation
3 water outlet of reactor assembly is connect with the second inlet tank 9；Second inlet tank 9 is connect with second level reverse osmosis apparatus 4, connection
4th intake pump 16 is housed on pipeline；The concentrated water end of the second level reverse osmosis apparatus 4 is connect with raw water box 6, produces water end (W.E.) and second
Water producing tank 10 connects；Second water producing tank 10 is connect with mixed-bed resin tank 5, and the 5th intake pump 17 is housed on connecting line.
The demineralized water production technology of coal chemical industry is carried out using above-mentioned special equipment, it including the following steps:
The first step, the recycle-water of coal chemical industrial waste water after processing is concentrated and separated in first-stage reverse osmosis device 1, dense
Division between pH value 5.5~7.5 of intaking, controls operating pressure between 0.6~1.2MPa from the process, will be in recycle-water
Salinity is concentrated, and is formed first-stage reverse osmosis and is produced water and concentrated water, and concentrated water enters strong brine pond and carries out zero discharge treatment, produces water and enters
Adsorption reaction process.
The first-stage reverse osmosis of the first step is produced water and is adsorbed to obtain adsorption reaction water outlet in adsorbent equipment 2 by second step,
Such as organic matter is removed using activated carbon adsorption；
Absorption water outlet in second step is carried out oxidation reaction, obtains oxidation reaction water outlet, gone remaining in water removal by third step
Organic matter, for water inlet pH value 7.0 or so, the residence time 30~60 minutes, oxidation reaction water outlet enters two-pass reverse osmosis process.
Oxidation reaction water outlet in third step is passed through second level reverse osmosis apparatus 4, is concentrated and separated, is being concentrated by the 4th step
In separation process, between pH value 5.5~7.5 of intaking, operating pressure is controlled between 0.6~1.0MPa, by first-stage reverse osmosis
It produces water to be concentrated, forms two-pass reverse osmosis and produce water and concentrated water, concentrated water enters reuse pool, produces water and enters in mixed-bed resin tank 5
Carry out adsorption reaction processing.
Structure depicted in this specification institute accompanying drawings of the embodiment of the present invention, ratio, size, quantity etc., only to cooperate specification
Revealed content is not intended to limit the invention enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain and can contain
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Claims (6)
1. a kind of demineralized water production technology of coal chemical industry, which is characterized in that it including the following steps:
(1) first-stage reverse osmosis: the recycle-water of coal chemical industrial waste water after processing is concentrated and separated, obtain first-stage reverse osmosis produce water with
Concentrated water；
(2) it adsorbs: the first-stage reverse osmosis of step (1) being produced into water and carries out adsorption treatment, removal organic matter obtains absorption water outlet；
(3) oxidation reaction: the absorption water outlet in step (2) is subjected to oxidation reaction, remaining organic matter in water removal is gone to be aoxidized
Reaction water outlet；
(4) two-pass reverse osmosis: oxidation reaction water outlet in step (3) is concentrated and separated again, two-pass reverse osmosis is obtained and produces water
With concentrated water；
(5) resin adsorption: two-pass reverse osmosis obtained in step (4) is produced into water and carries out mixed-bed resin absorption, obtains demineralized water i.e.
Product water.
2. a kind of demineralized water production technology of coal chemical industry as described in claim 1, it is characterised in that: the step (1)
During the concentration and separation of middle first-stage reverse osmosis, the recycle-water pH value of coal chemical industrial waste water after processing is between 5.5~7.5, behaviour
Make pressure between 0.6~1.2MPa, the salinity in recycle-water is concentrated, forms first-stage reverse osmosis and produce water and concentrated water, it is dense
Water carries out zero discharge treatment, produces water and carries out adsorption reaction.
3. a kind of demineralized water production technology of coal chemical industry as described in claim 1, it is characterised in that: the step (2)
Adsorbent absorption is utilized to guarantee organic matter removal during middle adsorption treatment.
4. a kind of demineralized water production technology of coal chemical industry as described in claim 1, it is characterised in that: the step (3)
7.0, the residence time 30~60 minutes, oxidation reaction water outlet carries out at two-pass reverse osmosis the absorption water outlet pH value of middle oxidation reaction
Reason.
5. a kind of demineralized water production technology of coal chemical industry as described in claim 1, it is characterised in that: the step (4)
During the concentration and separation of middle two-pass reverse osmosis, the pH value of oxidation reaction water outlet between 5.5~7.5, operating pressure 0.6~
Between 1.0MPa, the production water of first-stage reverse osmosis is concentrated, two-pass reverse osmosis is formed and produces water and concentrated water, concentrated water carries out reuse,
It produces water and carries out resin adsorption processing.
6. a kind of demineralized water production technology of coal chemical industry described in any one of the claims 1~5 claim
Special equipment, it is characterised in that: it includes that first-stage reverse osmosis device (1), adsorbent equipment (2), oxidation reactor (3), second level are anti-
Permeability apparatus (4), mixed-bed resin tank (5), raw water box (6), the first water producing tank (7), the first inlet tank (8), the second inlet tank
(9), the second water producing tank (10), product water tank (11), third water producing tank (12), the first intake pump (13), the second intake pump (14),
Third intake pump (15), the 4th intake pump (16) and the 5th intake pump (17)；
The raw water box (6) connect with first-stage reverse osmosis device (1), and the first intake pump (13) are housed on connecting line；Described one
The concentrated water end of grade reverse osmosis unit (1) is connect with third water producing tank (13), is produced water end (W.E.) and is connect with the first water producing tank (7)；Described
One water producing tank (7) is connect with adsorbent equipment (2), and the second intake pump (14) are housed on connecting line；The adsorbent equipment (2) goes out
Water end (W.E.) is connect with the first inlet tank (8)；First inlet tank (8) connect with oxidation reactor device (3), fills on connecting line
There are third intake pump (15)；Oxidation reactor device (3) water outlet is connect with the second inlet tank (9)；Second water inlet
Case (9) is connect with second level reverse osmosis apparatus (4), and the 4th intake pump (16) is housed on connecting line；The second level reverse osmosis apparatus
(4) concentrated water end is connect with raw water box (6), is produced water end (W.E.) and is connect with the second water producing tank (10)；Second water producing tank (10) and mixed
Bed resin container (5) connects, and the 5th intake pump (17) is housed on connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086813.1A CN109179753A (en) | 2018-09-18 | 2018-09-18 | A kind of the demineralized water production technology and its special equipment of coal chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086813.1A CN109179753A (en) | 2018-09-18 | 2018-09-18 | A kind of the demineralized water production technology and its special equipment of coal chemical industry |
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| Publication Number | Publication Date |
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| CN109179753A true CN109179753A (en) | 2019-01-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276709A (en) * | 2014-09-30 | 2015-01-14 | 深圳能源资源综合开发有限公司 | Coal chemical industry concentrated brine zero discharge technique and special equipment thereof |
| CN105417775A (en) * | 2015-11-27 | 2016-03-23 | 宁波清水源水务科技有限公司 | Reverse osmosis membrane treating and recycling method for printing and dyeing wastewater |
| CN106673290A (en) * | 2016-12-26 | 2017-05-17 | 赛鼎工程有限公司 | Zero-discharge treatment process for crushed coal pressurized gasification wastewater |
| CN209322593U (en) * | 2018-09-18 | 2019-08-30 | 上海晶宇环境工程股份有限公司 | A kind of special equipment of the demineralized water production technology of coal chemical industry |
-
2018
- 2018-09-18 CN CN201811086813.1A patent/CN109179753A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276709A (en) * | 2014-09-30 | 2015-01-14 | 深圳能源资源综合开发有限公司 | Coal chemical industry concentrated brine zero discharge technique and special equipment thereof |
| CN105417775A (en) * | 2015-11-27 | 2016-03-23 | 宁波清水源水务科技有限公司 | Reverse osmosis membrane treating and recycling method for printing and dyeing wastewater |
| CN106673290A (en) * | 2016-12-26 | 2017-05-17 | 赛鼎工程有限公司 | Zero-discharge treatment process for crushed coal pressurized gasification wastewater |
| CN209322593U (en) * | 2018-09-18 | 2019-08-30 | 上海晶宇环境工程股份有限公司 | A kind of special equipment of the demineralized water production technology of coal chemical industry |
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