CN108046522A - A kind of phenol ammonia waste water processing method - Google Patents
A kind of phenol ammonia waste water processing method Download PDFInfo
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- CN108046522A CN108046522A CN201711329079.2A CN201711329079A CN108046522A CN 108046522 A CN108046522 A CN 108046522A CN 201711329079 A CN201711329079 A CN 201711329079A CN 108046522 A CN108046522 A CN 108046522A
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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
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses a kind of phenol ammonia waste water processing methods, belong to technical field of waste water processing, comprise the following steps：First, cool down oil removing pretreatment；2nd, air supporting or filtering oil removing pretreatment；3rd, ammonia still process and dephenolize pretreatment；4th, the biochemical pretreatment of muddy water cooling cycle；5th, biochemical treatment and advanced treating.By the processing of this method, thoroughly solves the problems, such as coal chemical industry cost of sewage disposal is high, intractability greatly, qualified discharge, waste water are not fully able to reach zero-emission, from environmental protection or it is energy saving on or economically all have very important significance.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly, to a kind of phenol ammonia waste water processing method.
Background technology
Coal contains moisture in itself, and coal can generate the waste water containing ammonia and phenol in heating and pyrolysis, be commonly called as phenol ammonia waste water, phenol
Ammonia waste water participates in the circulating cooling of coal pyrolysis gas, and extra will discharge this system, and the phenol ammonia waste water of discharge is typically referred to as residue
Ammonium hydroxide, also appellation phenol ammonia waste water, but be accustomed to phenol ammonia waste water appellation remained ammonia when being discharged to remained ammonia tank, and from remaining ammonia
Water pot is out rear to be just phenol ammonia waste water or is directly ammonium hydroxide.
The sewage disposal of coal chemical industry is generally acknowledged the problem of being most difficult to processing, and processing cost is big, not qualified discharge, industry
Arrange phenomenon serious, heavy metals exceeding standard, high organic content steathily, the smell is awful, bring serious threat to the life and health of the people.It is existing
It is ammonia still process+dephenolize+biochemistry+advanced treating, however, this processing cost is too high in more successful treatment process.How thoroughly
This problem is effectively solved as industry to expect.
China Patent Publication No. CN102863112 A disclose generated in a kind of Chemical Manufacture containing phenol and decomposable asymmetric choice net ammonia salt
Wastewater treatment method, it is particularly a kind of to be decomposed by single device realization ammonia salt and realize the energy saving technique isolated and purified, reduce
Equipment investment, and differential pressure distillation technology is used to realize the recycle and reuse of energy, reduce energy expenditure；Specifically
One kind is by depickling denitrification coupling tower, using side take-off, differential pressure distillation technology, realizes the process of single column depickling deamination simultaneously,
Ammonia and phenol in gas recovery waste water, simplification of flowsheet while energy-saving and emission-reduction；The technique is returned only by depickling deamination
Ammonia and phenol are received, content of organics is higher in obtained waste water, it is also necessary to subsequent process.
102674608 A of China Patent Publication No. CN disclose a kind of recovery and treatment method of high-concentration phenol ammonia waste water, mainly
Comprise the following steps：Saturated absorption, waste water are carried out to the high-concentration phenol ammonia waste water for removing oil removal, tar by sour gas first
PH value enters after reducing in extraction tower, carries out continuous countercurrent extraction；Stripping process is pressurizeed to the raffinate phase after extraction using single column
Depickling deamination and stripping solvent are carried out, sour water stripping (SWS) tower side line adds alkali, the acid gas phase of tower top discharge and extractant, lower part side line warp
Ammonia is obtained after three-level fractional condensation；Extraction phase after extraction enters rectifying phenol tower recycling extractant, while obtains byproduct crude phenols.It should
It is higher that invention final outflow water also needs to biochemical and advanced treating, holistic cost.
The content of the invention
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of phenol ammonia waste water processing method, lead to
Cross muddy water cooling cycle biochemistry pretreatment system, biochemical treatment system that de-oiling, deamination, dephenolize, heat exchange and cooling tower are set up
And the method for the advanced treating of waste water is realized, thoroughly solves that coal chemical industry cost of sewage disposal is high, intractability is big, does not reach
Emission problem is marked, waste water is fully able to reach zero-emission.
In order to achieve the above objectives, the present invention uses following technical scheme：
A kind of phenol ammonia waste water processing method, it is characterised in that：Comprise the following steps：
1）Cool down oil removing pretreatment：Phenol ammonia waste water cools down in remained ammonia tank, and the oil in phenol ammonia waste water is analysed from phenol ammonia waste water
Go out, through Gravity Separation, oil is separated, complete the once pretreatment of phenol ammonia waste water；
2）Air supporting or filtering pretreatment：It is pre-processed by the pretreated phenol ammonia waste water of the oil removing that cools down through air supporting or filtering by small oil
Pearl aggregation is separated from water, and completes the secondary pretreatment of phenol ammonia waste water；
3）Ammonia still process and dephenolize pretreatment：By air supporting or the pretreated phenol ammonia waste water of filtering, ammonia still process and dephenolize system are sequentially entered
System first isolates most sour gas in ammonia steaming system（CO2/H2S）, ammonia and volatile organic matter, it is de- subsequently into extraction
Phenol system is united, and removing is most of, and volatile organic matter, waste water are not pre-processed three times；
4）As the biochemical pretreatment of muddy water cooling cycle：Ammonia still process and the pretreated phenol ammonia waste water of dephenolize enter heat-exchange device with
The cooling recirculation system of cooling tower composition, as cycling of muddy water with cooling water, organic matter in phenol ammonia waste water is in the work of biochemical bacteria
Under, most of phenol has obtained effective acidification hydrolization, and a part of water is evaporated, and phenol ammonia waste water obtains biochemical pretreatment；
5）Biochemical treatment and advanced treating：After the biochemical pretreatment of muddy water cooling cycle, part water is evaporated, and the phenol ammonia of concentration gives up
Water including sludge or biochemical bacteria, enters back into regulating reservoir, by anaerobism, anoxic, aerobic composition biochemical system, through biochemical system
Further digestion of organic matter, then through mud-water separation, the phenol ammonia waste water that obtains that treated.
Further, the step 1）The method of middle cooling is that cooling device is set in remained ammonia tank or is increased remaining
The volume and heat dissipation area of ammonia water tank make phenol ammonia waste water Temperature fall.
Further, the step 2）Middle air supporting pre-processes：The cooling pretreated phenol ammonia waste water of oil removing passes through air supporting
Pre-processing device makes small oil droplet in the drive float downward of bubble, assembles in liquid surface, completes part grease under the effect of gravity
Separation.
Further, the filtering in the step 2), which pre-processes, is：The cooling pretreated phenol ammonia waste water of oil removing passed through
Equipment is filtered, small oil droplet is assembled in cartridge surface and reunites, and is blocked in the outer surface of filter plant filter core, realizes part grease point
From.
The beneficial effects of the invention are as follows：
1st, the present invention discloses a kind of phenol ammonia waste water processing method, and deoiling method has two steps, and the first step is that phenol ammonia waste water is made to drop naturally
Wen Hou, the solubility of part heavy oil, light oil in water in phenol ammonia waste water reduce, wherein, most of for carbolic oil, these oil are from phenol
It separates out in ammonia waste water, through Gravity Separation, oil is separated；Second step is further to be set by air-flotation separation equipment or filtering
It is standby, the aggregation of small oil droplet is separated from water, by two step oil removing measures, utility is on the one hand isolated, becomes a kind of money
On the other hand source reduces the Solvent quantity of phenol ammonia waste water extraction phenol, the cost reduction of extraction.
2nd, the present invention is used the waste water after ammonia still process and dephenolize as muddy water cooling cycle, and cooling water is used as cycling of muddy water
Muddy water temperature at 30-38 DEG C, be particularly suitable for the breeding of biochemical bacterium, biochemical bacteria can be generated in water body naturally quickly, phenol ammonia gives up
For organic matter in water under the action of biochemical bacteria, most of phenol has obtained effective acidification hydrolization；The step not only makes phenol ammonia waste water
As muddy water cooling cycle, become a kind of water resource, and waste water adds the life of acidification hydrolization before biochemical treatment is entered
Change pretreatment, enhance wastewater biodegradability, be conducive to the further purification of waste water.
Description of the drawings
Fig. 1 is the process flow chart of the embodiment of the present invention one；
Fig. 2 is the process flow chart of the embodiment of the present invention two.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment one
A kind of phenol ammonia waste water processing method, as shown in Figure 1, comprising the following steps：
1）Phenol ammonia waste water sets cooling device in remained ammonia tank, makes remained ammonia from ammonia water tank overflow to remained ammonia tank
Temperature fall is cooled down by inside, ammonia temperature is down to less than 40 DEG C, the solubility of aldehydes matter in water is bright by 80 DEG C or so
Aobvious to decline, the solubility of part heavy oil, light oil in water in phenol ammonia waste water reduces, wherein, it is most of for carbolic oil, these oil from
It separates out in phenol ammonia waste water, through Gravity Separation, oil is separated, complete the once pretreatment of phenol ammonia waste water；
2）By the pretreated phenol ammonia waste water of the oil removing that cools down through air supporting pre-processing device, make small oil droplet under the drive of bubble
It floats, assembles in liquid surface, further the aggregation of small oil droplet is separated from water under the effect of gravity, completes the secondary of phenol ammonia waste water
Pretreatment；
3）By the pretreated phenol ammonia waste water of air supporting, ammonia still process and dephenolize system are sequentially entered, ammonia steaming system is in ammonia still
It carries out, from the top of ammonia still process, isolates most sour gas（CO2/H2S/HCN）And volatile organic matter, this part
Can further separate, and ammonia and water vapour are isolated from the side line of ammonia still, the aqueous solution of ammonia can further concentrate become 20 ~
30% concentrated ammonia liquor or liquid ammonia reduces wastewater biochemical toxicity, and subsequently into extracting and dephenolizing system, removing is not most of volatile
Organic matter, waste water pre-processed three times；
4）The pretreated phenol ammonia waste water of ammonia still process enters the cooling recirculation system of heat-exchange device and cooling tower composition, as muddy water
Xun Huan cooling water, the temperature of muddy water are particularly suitable for the breeding of biochemical bacterium at 30-38 DEG C, and the organic matter in phenol ammonia waste water exists
Under the action of biochemical bacteria, most of phenol has obtained effective acidification hydrolization, and a part of water is evaporated, and phenol ammonia waste water obtains biochemical pre-
Processing；
5）After the biochemical pretreatment of muddy water cooling cycle, the biochemical of waste water is there are one improving, and part water is evaporated, the phenol of concentration
Ammonia waste water including sludge or biochemical bacteria, enters back into regulating reservoir, by anaerobism, anoxic, aerobic composition biochemical system, through biochemistry
The further digestion of organic matter of system, then through mud-water separation, treated phenol ammonia waste water close to qualified discharge standard, this water or
It is directly used in cooling or the humidification of coking coal.
Embodiment two
A kind of phenol ammonia waste water processing method, as shown in Fig. 2, comprising the following steps：
1）For phenol ammonia waste water from ammonia water tank overflow to remained ammonia tank, remained ammonia tank sets appropriate set greatly, outside tank body to dissipate
Backing, making remained ammonia, ammonia temperature is down to less than 50 DEG C, aldehydes matter exists by 80 DEG C or so through external cooling Temperature fall
Solubility in water is decreased obviously, and the solubility of the part heavy oil, light oil in phenol ammonia waste water in water reduces, wherein, it is most of
For carbolic oil, these oil separate out from phenol ammonia waste water, through Gravity Separation, oil are separated, and complete the once pre- of phenol ammonia waste water
Processing；
2）By pretreated filter plant of the phenol ammonia waste water through hydrophilic and oleophobic of the oil removing that cools down, small oil droplet is assembled in cartridge surface
Reunite, be blocked in the outer surface of filter plant filter core, realize part water-oil separating, complete the secondary pretreatment of phenol ammonia waste water；
3）Pretreated phenol ammonia waste water is filtered, sequentially enters ammonia still process and dephenolize system, ammonia steaming system is carried out in ammonia still
, from the top of ammonia still process, isolate most sour gas（CO2/H2S/HCN）And volatile organic matter, this part can be into
One step separates, and isolates ammonia and water vapour from the side line of ammonia still, and the aqueous solution of ammonia, which can be concentrated further, becomes 20 ~ 30%
Concentrated ammonia liquor or liquid ammonia reduce wastewater biochemical toxicity, and subsequently into extracting and dephenolizing system, removing is most of not volatile organic
Object, waste water are pre-processed three times；
4）Ammonia still process and the pretreated phenol ammonia waste water of dephenolize enter the cooling recirculation system of heat-exchange device and cooling tower composition, make
Be cycling of muddy water with cooling water, the temperature of muddy water is particularly suitable for the breeding of biochemical bacterium at 30 ~ 38 DEG C, in water body can quickly from
Biochemical bacteria is so generated, for the organic matter in phenol ammonia waste water under the action of biochemical bacteria, most of phenol has obtained effective acidification hydrolization, and one
Partial water is evaporated, and phenol ammonia waste water obtains biochemical pretreatment；
5）After the biochemical pretreatment of muddy water cooling cycle, the biochemical of waste water is there are one improving, and part water is evaporated, the phenol of concentration
Ammonia waste water including sludge or biochemical bacteria, enters back into regulating reservoir, by anaerobism, anoxic, aerobic composition biochemical system, through biochemistry
The further digestion of organic matter of system, then through mud-water separation, treated phenol ammonia waste water close to qualified discharge standard, using
Ozone, the processing of membrane filtration even depth, for boiler feed water, make phenol ammonia waste water all obtain effective environmental protection treatment or recycling.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this field is common
Other modifications or equivalent substitution that technical staff makes technical scheme, without departing from technical solution of the present invention
Spirit and scope, should be covered by the scope of the claims of the present invention.
Claims (4)
1. a kind of phenol ammonia waste water processing method, it is characterised in that：Comprise the following steps：
1）Cool down oil removing pretreatment：Phenol ammonia waste water cools down in remained ammonia tank, and the oil in phenol ammonia waste water is analysed from phenol ammonia waste water
Go out, through Gravity Separation, oil is separated, complete the once pretreatment of phenol ammonia waste water；
2）Air supporting or filtering pretreatment：It is pre-processed by the pretreated phenol ammonia waste water of the oil removing that cools down through air supporting or filtering by small oil
Pearl aggregation is separated from water, and completes the secondary pretreatment of phenol ammonia waste water；
3）Ammonia still process and dephenolize pretreatment：By air supporting or the pretreated phenol ammonia waste water of filtering, ammonia still process and dephenolize system are sequentially entered
System first isolates most sour gas, ammonia and volatile organic matter in ammonia steaming system, subsequently into extracting and dephenolizing system,
Removing is most of, and volatile organic matter, waste water are not pre-processed three times；
4）As the biochemical pretreatment of muddy water cooling cycle：Ammonia still process and the pretreated phenol ammonia waste water of dephenolize enter heat-exchange device with
The cooling recirculation system of cooling tower composition, as cycling of muddy water with cooling water, organic matter in phenol ammonia waste water is in the work of biochemical bacteria
Under, most of phenol has obtained effective acidification hydrolization, and a part of water is evaporated, and phenol ammonia waste water obtains biochemical pretreatment；
5）Biochemical treatment and advanced treating：After the biochemical pretreatment of muddy water cooling cycle, part water is evaporated, and the phenol ammonia of concentration gives up
Water including sludge or biochemical bacteria, enters back into regulating reservoir, by anaerobism, anoxic, aerobic composition biochemical system, through biochemical system
Further digestion of organic matter, then through mud-water separation, the phenol ammonia waste water that obtains that treated.
2. a kind of phenol ammonia waste water processing method according to claim 1, it is characterised in that：The step 1）The side of middle cooling
Method is to set cooling device in remained ammonia tank or increase the volume and heat dissipation area of remained ammonia tank, makes phenol ammonia waste water natural
Cooling.
3. a kind of phenol ammonia waste water processing method according to claim 1, it is characterised in that：The step 2）Middle air supporting is located in advance
It manages and is：The pretreated phenol ammonia waste water of oil removing cool down by air supporting pre-processing device, makes small oil droplet in the drive float downward of bubble,
Assemble in liquid surface, complete part water-oil separating under the effect of gravity.
4. a kind of phenol ammonia waste water processing method according to claim 1, it is characterised in that：Filtering in the step 2) is pre-
It handles and is：The pretreated phenol ammonia waste water of oil removing cool down by filter plant, small oil droplet is assembled in cartridge surface and reunites, is blocked
In the outer surface of filter plant filter core, part water-oil separating is realized.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553236A (en) * | 2018-05-31 | 2019-04-02 | 张庆华 | The process flow containing ammonia nitrogen, phenol wastewater is administered in controllable concentration |
| CN112537873A (en) * | 2020-10-12 | 2021-03-23 | 太原理工大学 | Treatment process and device for coal chemical wastewater containing fine dust |
| CN113264628A (en) * | 2021-05-07 | 2021-08-17 | 内蒙古万众炜业科技环保股份公司 | Comprehensive utilization method of oily ammonia water generated in coal cracking |
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| JP2012050917A (en) * | 2010-08-31 | 2012-03-15 | Hitachi Engineering & Services Co Ltd | Ammonia removing device |
| CN104030517A (en) * | 2013-03-06 | 2014-09-10 | 上海凯鑫分离技术有限公司 | Advanced treatment recovery technology of coking wastewater |
| CN104478173A (en) * | 2014-12-22 | 2015-04-01 | 新疆环境工程技术有限责任公司 | Wastewater treatment and recycling integrated treatment process for coal chemical enterprise |
| CN105060628A (en) * | 2015-08-04 | 2015-11-18 | 重庆杰润科技有限公司 | Semi-coke wastewater treatment method |
| CN107010796A (en) * | 2017-06-13 | 2017-08-04 | 河南龙成煤高效技术应用有限公司 | A kind of system by the use of remained ammonia as cooling circular water replenishing |
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2017
- 2017-12-13 CN CN201711329079.2A patent/CN108046522A/en active Pending
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| JP2012050917A (en) * | 2010-08-31 | 2012-03-15 | Hitachi Engineering & Services Co Ltd | Ammonia removing device |
| CN104030517A (en) * | 2013-03-06 | 2014-09-10 | 上海凯鑫分离技术有限公司 | Advanced treatment recovery technology of coking wastewater |
| CN104478173A (en) * | 2014-12-22 | 2015-04-01 | 新疆环境工程技术有限责任公司 | Wastewater treatment and recycling integrated treatment process for coal chemical enterprise |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109553236A (en) * | 2018-05-31 | 2019-04-02 | 张庆华 | The process flow containing ammonia nitrogen, phenol wastewater is administered in controllable concentration |
| CN112537873A (en) * | 2020-10-12 | 2021-03-23 | 太原理工大学 | Treatment process and device for coal chemical wastewater containing fine dust |
| CN113264628A (en) * | 2021-05-07 | 2021-08-17 | 内蒙古万众炜业科技环保股份公司 | Comprehensive utilization method of oily ammonia water generated in coal cracking |
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Application publication date: 20180518 |