CN107265794A - A kind of processing of gasification of poor coal waste water at recycle device and its recovery with using method - Google Patents
A kind of processing of gasification of poor coal waste water at recycle device and its recovery with using method Download PDFInfo
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Abstract
A kind of processing of gasification of poor coal waste water belongs to industrial waste water treatment with using method at recycle device and its recovery.The present invention can realize that the coal gasification waste water for producing coal pressure gasification inferior carries out the alkaline stripping of steam, extraction, coagulation air-float, hydrolysis acidification, anaerobic-aerobic processing, coagulating sedimentation, O3 contacted oxidation, running sand filtration, mechanical agitation clarification, multi-medium filtering, UF, RO, concentrated water cartridge filter, concentrated water RO processing and reuse successively, be sent to circulating cooling make-up water system.The present invention solves gasification of poor coal wastewater treatment and is difficult to the problem of qualified discharge and reuse.
Description
Technical field
The invention belongs to industrial waste water treatment, and in particular to a kind of processing and recovery of gasification of poor coal waste water
Utilize device.A kind of processing of gasification of poor coal waste water is further related to handle with recycling gasification of poor coal with recycle device
The method of waste water.
Background technology
In recent years, lump coal pressurized coal gasification technology coal liquifaction, coal gas, coal derived DME, coal-ethylene glycol etc. at home
Extensive use in the clean utilization technique of coal, still, can produce substantial amounts of waste water, the waste water contains height during wet in coal
Concentration pollutant, water-quality constituents is complicated, mainly based on phenolic compound, contains substantial amounts of long chain alkane class, arene, miscellaneous
The compounds such as ring class, also containing poisonous and harmful substances such as ammonia nitrogen, cyanogen, water quality biodegradability is poor, with very strong Antimicrobial
Property, it is a kind of industrial wastewater of typical high concentration difficult for biological degradation.Therefore, coal gasification waste water processing is domestic and international dirt for a long time
The a great problem of water treatment field.
The waste water produced due to rough coal gas washing, in order to wash the dust contained in raw gas and various volatilizations
Part, cool down and discharge after circulating washing at high temperature, therefore composition is extremely complex and extensive in waste water, and waste water it is every into
Divide and change, lump coal pressure gasification process technology maturation application with feed coal composition, the change of gasification operating mode and operating condition
Extensively, but in fixed bed gasification, the coal gas of gasification layer forms raw gas after destructive distillation layer, drying layer with destructive distillation component, this
During raw gas gradually cool, so produce waste component it is complicated and changeable, main external appearance characteristic：Dark brown, have viscosity, it is many
Foam.PH value is more than 7 but unstable, can reach more than 10, has strong phenol ammonia odor, general COD value is in 5000mg/L
Left and right, 2500~7000mg/L of ammonia nitrogen concentration, oil content 800mg/L or so.Both at home and abroad generally using separation and biological treatment phase
With reference to handling such waste water.Chemical separating includes the unit processes such as absorption, extraction, rectifying, UF membrane, to remove sour gas
The materials such as body, recovery phenol, ammonia, sulphur, then biological treatment is carried out, but can not reach emission request.
At present, the technology of domestic processing gasification of poor coal waste water also has following several.
(1) embrane method treatment technology
Embrane method treatment technology is that the technological advantage floor space is small, sludge using MBR films or filter membrane processing regulating reservoir waste water
Concentration is high, effluent quality is preferable；Shortcoming investment is big, film maintenance clean difficulty is big, film high to performance requirements such as the mechanical strengths of film
Patience to oils is poor.
(2) HSB methods processing waste water HSB (High Sotution Bacteria) is the english abbreviation of macromolecule flora.Mesh
Preceding domestic preliminary test draws to draw a conclusion：Poisonous and harmful substance is good in HSB tolerance waste water, and sludge is few after processing, go out water colour
Spend, caustic dosage is the 1/3~1/5 of conventional method, and operating cost is relatively low, but to strain properties, life condition, purification function still
Do not understand completely, need further research and practice.
(3) anaerobic biological process processing waste water
Anaerobic Microbiological Treatment Technology utilizes the metabolism and characteristic of anaerobe, without adding external source energy, with quilt
The organic matter of reduction produces biogas as hydrogen acceptor while degradation of organic substances.Organic matter during anaerobic bio-treated
Degradation pathway can be divided into hydrolysis, fermentation and acid, production acetic acid production hydrogen and methane phase four-stage.In actual moving process, anaerobism work
Skill is limited in one's ability to COD and ammonia nitrogen removal, but the small molecule that waste water forms a large amount of easily biological-degradables after Anaerobic Treatment is organic
Thing, can significantly improve wastewater biodegradability and aerobic degradability.
(4) electrochemical catalytic oxidation treatment technology
The technology is, by the metal oxide electrode with catalytic performance, to produce the hydroxyl free with Strong oxdiative ability
Organic pollution in base or other free radicals attack solution, makes it be completely decomposed into harmless H2O and CO2, the technology into
Maturity also needs to the test by engineering practice.
Processing to gasification of poor coal waste water, is handled merely by physics, physical chemistry, chemistry, biological method, difficult
To reach discharge or reuse standard, generally require to combine by several processing methods, can be only achieved the degree of processing requirement.Therefore
Need improve constantly prior art disposal ability, various methodological sciences are reasonably combined, deposit it is excellent rogue just find control
Manage the best approach of gasification of poor coal waste water.
The content of the invention
The purpose of the present invention is that there is provided a kind of place of gasification of poor coal waste water for above-mentioned the deficiencies in the prior art
Reason and recycle device.
Another goal of the invention of the present invention is to provide a kind of processing of gasification of poor coal waste water and handled with recycle device
Method with recycling gasification of poor coal waste water.
The technical solution adopted in the present invention is：A kind of processing of gasification of poor coal waste water and recycle device, including
Gas liquor isolates water pump, heat exchanger, depickling degreasing tower, extraction tower, water tower, dilute phenol water pump, oil interceptor, coagulation floatation, phenol
Ammonia sewage regulating reservoir, one-stage hydrolysis pool, two grades of hydrolytic tanks, one-level A/O ponds, three-level hydrolytic tank, two grades of A/O ponds, coagulative precipitation tank,
It is ozone-oxidizing device, running sand filtration pond, reuse water pump, accelerator, more medium filter, self-cleaning filter, super
Filter device, cartridge filter, reverse osmosis unit, concentrated water filter, concentrated water reverse osmosis cartridge filter, concentrated water counter-infiltration supercharging
Pump, concentrated water counter-infiltration, reuse pool；
The delivery port that the gas liquor isolates water pump passes through pipeline and the gas liquor inlet communication of heat exchanger, the heat exchange
The coal gas water out of device by the inlet communication of pipeline and depickling degreasing tower, the depickling degreasing tower be located at extraction tower and water tower and
The top of oil interceptor；The outlet of the depickling degreasing tower bottom is connected by pipeline with the entrance of extraction tower, described water tower position
Behind extraction tower, for the recovery to extractant；Described extraction tower is located at the top of water tower and oil interceptor, for bad
Matter coal gasification waste water carries out phenol removal；The outlet of the extraction tower is connected by pipeline with the entrance of water tower, the water tower
Outlet is connected by pipeline with the entrance of dilute phenol water pump, and the outlet of dilute phenol water pump is connected by pipeline with oil interceptor, described
Oil interceptor outlet is communicated by pipeline with coagulation floatation, and the coagulation floatation outlet passes through pipeline and phenol ammonia sewage regulating reservoir
Entrance connection, the outlet of phenol ammonia sewage regulating reservoir communicated by pipeline with one-stage hydrolysis pool, the outlet of the one-stage hydrolysis pool
Communicated by pipeline with two grades of hydrolytic tank entrances, the entrance of the outlet and one-level A/O ponds of two grades of hydrolytic tanks passes through pipeline phase
Logical, the outlet in the one-level A/O ponds is communicated by pipeline with the entrance of three-level hydrolytic tank, and the outlet of the three-level hydrolytic tank passes through
Pipeline is communicated with the entrance in two grades of A/O ponds, and the outlet in two grades of A/O ponds is communicated with the entrance of coagulative precipitation tank, and described
One-level A/O ponds in be provided with micro-hole aerator and one-level A/O ponds circulating pump, also be provided with two grades of described A/O ponds micropore exposure
Gas device and two grades of A/O ponds circulating pumps；It is uniform for biooxidation reactions oxygen supply, carried out beneficial to reaction；The coagulative precipitation tank
Outlet is connected by pipeline with the entrance of ozone-oxidizing device, and the liquid outlet of the ozone-oxidizing device passes through pipeline and quicksand mistake
Filter tank is connected, and the import of the backwash water out and coagulative precipitation tank in the running sand filtration pond passes through pipeline communication；It is useless for backwash
The recycling of water；The delivery port in the running sand filtration pond is connected by pipeline with the entrance of reuse water pump, the reuse water pump
Outlet communicated by pipeline with the inlet of accelerator, the liquid outlet of the accelerator passes through pipeline
Connected with the inlet of more medium filter, the liquid outlet of the more medium filter passes through pipeline and self-cleaning filter, super
Filter device, cartridge filter, reverse osmosis unit are sequentially communicated, and the concentrated phase liquid outlet of the reverse osmosis unit passes through pipeline and concentrated water
The inlet connection of filter, the inlet of the concentrated water reverse osmosis cartridge filter is connected with the liquid outlet of concentrated water filter,
The concentrated water reverse osmosis cartridge filter is connected by concentrated water reverse osmosis booster pump with the inlet of concentrated water counter-infiltration by pipeline,
The liquid outlet of the concentrated water counter-infiltration is connected by pipeline with reuse pool.
Further preferred embodiment, described ultrafiltration apparatus can be immersion, external-compression type or inner pressed.
Further preferred embodiment, described reverse osmosis unit can be one-level, two-stage or multistage.
A kind of processing using described gasification of poor coal waste water is handled with recycling colm with recycle device
The method of gasification waste water, is carried out in accordance with the following methods：
The first step, the coal gasification waste water come is conveyed through supercooling, flash distillation and tar gravity from coal pressurizing gasifying apparatus inferior
After separation, media filtration, water pump lifting is isolated by gas liquor, preheated through heat exchanger, the gas liquor after preheating enters depickling
Deammoniation tower carries out steam alkalescence stripping, removing NH and escaping gas, and .MPa superheated steams are passed directly into depickling deamination tower bottom,
Liquid caustic soda is added by top and mixed with waste water, is gone out the volatile substances such as NH, HS, CO of tower and is sent to boiler water reuse or mixes burning；
Second step, the waste water through removing NH and escaping gas is sent to extraction tower, proceeds phenol removal, total phenol is down to
Below 00mg/L；Water outlet enters water tower, and extractant removing processing is carried out to waste water；The waste water COD cr of removing extractant is less than
00mg/L, BOD are less than 00mg/L, and total phenol is less than 00mg/L；
3rd step, the waste water of removing extractant enters oil interceptor through dilute phenol water pump, and gravity oil-removing processing is carried out to waste water, every
Waste water after oil sump processing is suspended in coagulation floatation to waste water and oil emulsion removes and gone oil removal；
4th step, the water outlet of coagulation floatation is mixed in phenol ammonia sewage regulating reservoir with full factory site Ping Shui, safety fourth phase waste water
Close, through one-stage hydrolysis pool, two grades of hydrolytic tanks, acidification is hydrolyzed to sewage, larger molecular organicses are decomposed, favorably
In biochemical treatment；
5th step, sewage enters one-level A/O ponds, anaerobism, Aerobic biological process is carried out to sewage, effectively in degraded sewage
Organic pollution and ammonia nitrogen pollutant, remove 0%CODcr, the water outlet of ammonia nitrogen through three-level hydrolytic tank to two grades of A/O ponds, to sewage
Anaerobism, Aerobic biological process are carried out, further remaining organic matter and ammonia nitrogen in degraded sewage；The water outlet CODcr in two grades of A/O ponds
It is less than mg/L to coagulative precipitation tank less than 0mg/L, ammonia nitrogen, materialization absorption, coagulation, precipitation, decolorization is carried out to sewage；Water outlet
CODcr enters ozone-oxidizing device less than mg/L, and the hardly degraded organic substance in waste water is further removed；The coagulation floatation makes
Use nitrogen degreasing technique, can prevent from producing in coagulation floatation air oil removal process the more cyclopentenone of a large amount of foams, generation,
Other heterocyclic compounds；
6th step, CODcr is less than 0mg/L water outlet through running sand filtration pond, reduces after the suspension of waste water through reuse water pump
To reuse water device；Water outlet removes temporary hardness and suspension in waste water by reuse water pump to accelerator, enters
More medium filter filtering drop is turbid；The multi-medium filtering water outlet that turbidity is less than mg/L is delivered to ultrafiltration apparatus through self-cleaning filter
Further remove organic matter and suspension；
7th step, ultrafiltration apparatus water outlet enters reverse osmosis unit through cartridge filter and carries out one-level desalination；Electrical conductivity is less than
0 μ s/cm fresh water sends into circulating cooling make-up water system to reuse pool；Concentrated water removes suspension through concentrated water filter, anti-into concentrated water
After permeating cartridge filter by the supercharging of concentrated water reverse osmosis booster pump, most of ion is removed into concentrated water counter-infiltration, concentrated water is anti-
Permeate dilute side water outlet and send into circulating cooling make-up water system, concentrated water to strong brine pond to reuse pool.
Compared with prior art, the invention has the advantages that：
1. the wastewater treatment is big with reuse technology group technology waste treatment capacity, installation area is small.
2. using " steam alkalescence stripping+extraction+coagulation air-float+hydrolysis acidification+anaerobic-aerobic+coagulating sedimentation+ozone contact
Oxidation+running sand filtration+mechanical agitation clarification+multi-medium filtering+UF+RO+ concentrated waters cartridge filter+concentrated water RO " processing and reuse
Group technology.By wastewater treatment and circulation can be back to use, realize the reuse of gasification of poor coal waste water.
3. with group technology process optimization, and operational control is in the practicality of one.
Brief description of the drawings
Accompanying drawing 1 is the process chart of gasification of poor coal wastewater treatment of the present invention and reclamation set.
Accompanying drawing 2 has the process chart of embodiment for the present invention.
Brief description of the drawings：1- gas liquors isolate water pump, 2- heat exchangers, 3- depickling deammoniation towers, 4- extraction towers, 5- water towers, 6-
Dilute phenol water pump, 7- oil interceptors, 8- coagulation floatations, 9- phenol ammonia sewage regulating reservoirs, 10- one-stage hydrolysis pools, bis- grades of hydrolytic tanks of 11-,
12- one-level A/O ponds, 13- three-level hydrolytic tanks, bis- grades of A/O ponds of 14-, 15- coagulative precipitation tanks, 16- ozone-oxidizing devices, 17- quicksands
Filtering ponds, 18- reuse water pumps, 19- accelerators, 20- more medium filters, 21- self-cleaning filters, 22- ultrafiltration
Device, 23- cartridge filters, 24- reverse osmosis units, 25- concentrated water filters, 26- concentrated water reverse osmosis cartridge filters, 27- is dense
Water reverse osmosis booster pump, 28- concentrated water counter-infiltrations, 29- reuse pools.
Embodiment
As shown in Figure 1 and Figure 2, a kind of processing of gasification of poor coal waste water and recycle device, including gas liquor are isolated
Water pump 1, heat exchanger 2, depickling degreasing tower 3, extraction tower 4, water tower 5, dilute phenol water pump 6, oil interceptor 7, coagulation floatation 8, phenol ammonia are dirty
Water regulating reservoir 9, one-stage hydrolysis pool 10, two grades of hydrolytic tanks 11, one-level A/O ponds 12, three-level hydrolytic tank 13, two grades of A/O ponds 14, coagulations
Sedimentation basin 15, ozone-oxidizing device 16, running sand filtration pond 17, reuse water pump 18, accelerator 19, more medium filter
20th, self-cleaning filter 21, ultrafiltration apparatus 22, cartridge filter 23, reverse osmosis unit 24, concentrated water filter 25, concentrated water reverse osmosis
Saturating cartridge filter 26, concentrated water reverse osmosis booster pump 27, concentrated water counter-infiltration 28, reuse pool 29；
The gas liquor isolates the delivery port of water pump 1 by pipeline and the gas liquor inlet communication of heat exchanger 2, described to change
The coal gas water out of hot device 2 is located at the He of extraction tower 4 by pipeline and the inlet communication of depickling degreasing tower 3, the depickling degreasing tower 3
The top of water tower 5 and oil interceptor 7；The outlet of the bottom of depickling degreasing tower 3 is connected by pipeline with the entrance of extraction tower 4, institute
The water tower 5 stated is located at behind extraction tower 4, for the recovery to extractant；Described extraction tower 4 is located at water tower 5 and oil interceptor 7
Top, for gasification of poor coal waste water carry out phenol removal；Outlet the entering by pipeline and water tower 5 of the extraction tower 4
Mouth connection, the outlet of the water tower 5 is connected by pipeline with the entrance of dilute phenol water pump 6, and the outlet of dilute phenol water pump 6 passes through pipe
Road is connected with oil interceptor 7, and the outlet of oil interceptor 7 is communicated by pipeline with coagulation floatation 8, and the coagulation floatation 8 is exported
Connected by pipeline with the entrance of phenol ammonia sewage regulating reservoir 9, the outlet of phenol ammonia sewage regulating reservoir 9 passes through pipeline and one-stage hydrolysis pool
10 are communicated, and the outlet of the one-stage hydrolysis pool 10 is communicated by pipeline with two grades of entrances of hydrolytic tank 11, two grades of hydrolytic tanks 11
Outlet communicated with the entrance in one-level A/O ponds 12 by pipeline, the outlet in the one-level A/O ponds 12 passes through pipeline and hydrolyzed with three-level
The entrance in pond 13 is communicated, and the outlet of the three-level hydrolytic tank 13 is communicated by pipeline with the entrance in two grades of A/O ponds 14, described two grades
The outlet in A/O ponds 14 is communicated with the entrance of coagulative precipitation tank 15, and in the described one-level A/O ponds 12 provided with micro-hole aerator and
One-level A/O ponds circulating pump, also is provided with micro-hole aerator and two grades of A/O ponds circulating pumps in two grades of described A/O ponds 14；For giving birth to
The oxygen supply of thing oxidation reaction is uniform, is carried out beneficial to reaction；The outlet of the coagulative precipitation tank 15 passes through pipeline and ozone-oxidizing device
16 entrance connection, the liquid outlet of the ozone-oxidizing device 16 is connected by pipeline with running sand filtration pond 17, the quicksand mistake
The backwash water out in filter tank 17 passes through pipeline communication with the import of coagulative precipitation tank 15；Recycling for backwash waste；Institute
The delivery port for stating running sand filtration pond 17 is connected by pipeline with the entrance of reuse water pump 18, and the outlet of the reuse water pump 18 passes through
Pipeline is communicated with the inlet of accelerator 19, and the liquid outlet of the accelerator 19 passes through pipeline and many Jie
The inlet connection of mass filter 20, the liquid outlet of the more medium filter 20 passes through pipeline and self-cleaning filter 21, super
Filter device 22, cartridge filter 23, reverse osmosis unit 24 are sequentially communicated, and the concentrated phase liquid outlet of the reverse osmosis unit 24 passes through pipe
Road is connected with the inlet of concentrated water filter 25, inlet and the concentrated water filter 25 of the concentrated water reverse osmosis cartridge filter 26
Liquid outlet connection, the concentrated water reverse osmosis cartridge filter 26 passes through concentrated water reverse osmosis booster pump 27 and concentrated water counter-infiltration 28
Inlet is connected by pipeline, and the liquid outlet of the concentrated water counter-infiltration 28 is connected by pipeline with reuse pool 29.
Ultrafiltration apparatus 22 described in the present embodiment can be immersion, external-compression type or inner pressed.
Described reverse osmosis unit 24 described in the present embodiment can be one-level, two-stage or multistage.
A kind of processing using described gasification of poor coal waste water described in the present embodiment is handled with returning with recycle device
The method using gasification of poor coal waste water is received, is carried out in accordance with the following methods：
The first step, the coal gasification waste water come is conveyed through supercooling, flash distillation and tar gravity from coal pressurizing gasifying apparatus inferior
After separation, media filtration, water pump 1 is isolated by gas liquor and lifted, is preheated through heat exchanger 2, the gas liquor after preheating enters de-
Sour deammoniation tower 3 carries out steam alkalescence stripping, removing NH3 and escaping gas, and 1.5MPa superheated steams are passed directly into depickling deamination
The bottom of tower 3, liquid caustic soda by top add mixed with waste water, go out the volatile substances such as NH3, H2S, CO2 of tower be sent to boiler water reuse or
Mix burning；
Second step, the waste water through removing NH3 and escaping gas is sent to extraction tower 4, proceeds phenol removal, total phenol drop
To below 800mg/L；Water outlet enters water tower 5, and extractant removing processing is carried out to waste water；The waste water COD cr for removing extractant is small
In 4500mg/L, BOD5 is less than 1500mg/L, and total phenol is less than 800mg/L；
3rd step, the waste water for removing extractant enters oil interceptor 7 through dilute phenol water pump 6, and gravity oil-removing processing is carried out to waste water,
Waste water after the processing of oil interceptor 7 is suspended in coagulation floatation 8 to waste water and oil emulsion removes and gone oil removal；
4th step, the water outlet of coagulation floatation 8 is in phenol ammonia sewage regulating reservoir 9, with full factory site Ping Shui, safety fourth phase waste water
Mixing, through one-stage hydrolysis pool 10, two grades of hydrolytic tanks 11, is hydrolyzed acidification to sewage, larger molecular organicses is divided
Solution, is conducive to biochemical treatment；
5th step, sewage enters one-level A/O ponds 12, anaerobism, Aerobic biological process is carried out to sewage, effectively in degraded sewage
Organic pollution and ammonia nitrogen pollutant, removing 90%CODcr, the water outlet of ammonia nitrogen through 13 to two grades of A/O ponds 14 of three-level hydrolytic tank,
Anaerobism, Aerobic biological process are carried out to sewage, further remaining organic matter and ammonia nitrogen in degraded sewage；Two grades of A/O ponds 14
Water outlet CODcr is less than 200mg/L, ammonia nitrogen and is less than 12mg/L to coagulative precipitation tank 15, and materialization absorption, coagulation are carried out to sewage, is sunk
Shallow lake, decolorization；Water outlet CODcr enters ozone-oxidizing device 16 less than 120mg/L, and the hardly degraded organic substance in waste water is further
Removing；The coagulation floatation 8 uses nitrogen degreasing technique, can prevent from producing a large amount of bubbles in coagulation floatation air oil removal process
The more cyclopentenone of foam, generation, other heterocyclic compounds；
6th step, CODcr is less than 60mg/L water outlet through running sand filtration pond 17, reduces after the suspension of waste water through recycle-water
Pump 18 arrives reuse water device；Water outlet removes temporary hardness and suspension in waste water by reuse water pump 18 to accelerator 19
Thing is turbid into the filtering drop of more medium filter 20；Turbidity is less than the 5mg/L water outlet of multi-medium filtering 20 through self-cleaning filter 21
It is delivered to ultrafiltration apparatus 22 further removing organic matter and suspension；
7th step, the water outlet of ultrafiltration apparatus 22 enters reverse osmosis unit 24 through cartridge filter 23 and carries out one-level desalination；Conductance
Rate is less than 100 μ s/cm fresh water and sends into circulating cooling make-up water system to reuse pool 29；Concentrated water is removed through concentrated water filter 25 and suspended
Thing, it is de- into concentrated water counter-infiltration 28 after being pressurized into concentrated water reverse osmosis cartridge filter 26 by concentrated water reverse osmosis booster pump 27
Except most of ion, circulating cooling make-up water system, concentrated water to dense salt are sent into the dilute side water outlet of concentrated water counter-infiltration 28 to reuse pool 29
Pond.
Claims (4)
1. processing and the recycle device of a kind of gasification of poor coal waste water, it is characterised in that：Water pump is isolated including gas liquor
(1), heat exchanger (2), depickling degreasing tower (3), extraction tower (4), water tower (5), dilute phenol water pump (6), oil interceptor (7), coagulation air-float
Pond (8), phenol ammonia sewage regulating reservoir (9), one-stage hydrolysis pool (10), two grades of hydrolytic tanks (11), one-level A/O ponds (12), three-level hydrolysis
Pond (13), two grades of A/O ponds (14), coagulative precipitation tank (15), ozone-oxidizing device (16), running sand filtration pond (17), reuse water pumps
(18), accelerator (19), more medium filter (20), self-cleaning filter (21), ultrafiltration apparatus (22), ensured public security
Filter (23), reverse osmosis unit (24), concentrated water filter (25), concentrated water reverse osmosis cartridge filter (26), concentrated water counter-infiltration increase
Press pump (27), concentrated water counter-infiltration (28), reuse pool (29)；
The gas liquor isolates the delivery port of water pump (1) by pipeline and the gas liquor inlet communication of heat exchanger (2), described to change
The coal gas water out of hot device (2) is located at extraction by pipeline and the inlet communication of depickling degreasing tower (3), the depickling degreasing tower (3)
Take the top of tower (4) and water tower (5) and oil interceptor (7)；The outlet of depickling degreasing tower (3) bottom passes through pipeline and extraction tower
(4) entrance connection, described water tower (5) is located at behind extraction tower (4), for the recovery to extractant；Described extraction
Tower (4) is located at the top of water tower (5) and oil interceptor (7), for carrying out phenol removal to gasification of poor coal waste water；The extraction tower
(4) outlet is connected by pipeline with the entrance of water tower (5), and the outlet of the water tower (5) passes through pipeline and dilute phenol water pump (6)
Entrance is connected, and the outlet of dilute phenol water pump (6) is connected by pipeline with oil interceptor (7), and oil interceptor (7) outlet passes through pipe
Road is communicated with coagulation floatation (8), the entrance that coagulation floatation (8) outlet passes through pipeline and phenol ammonia sewage regulating reservoir (9)
Connection, the outlet of phenol ammonia sewage regulating reservoir (9) is communicated by pipeline with one-stage hydrolysis pool (10), the one-stage hydrolysis pool (10)
Outlet is communicated by pipeline with two grades of hydrolytic tank (11) entrances, outlet and the one-level A/O ponds (12) of two grades of hydrolytic tanks (11)
Entrance communicated by pipeline, the outlet of the one-level A/O ponds (12) is communicated by pipeline with the entrance of three-level hydrolytic tank (13),
The outlet of the three-level hydrolytic tank (13) is communicated by pipeline with the entrance of two grades of A/O ponds (14), two grades of A/O ponds (14)
Outlet is communicated with the entrance of coagulative precipitation tank (15), and provided with micro-hole aerator and one-level in described one-level A/O ponds (12)
A/O ponds circulating pump, micro-hole aerator and two grades of A/O ponds circulating pumps also are provided with two grades of described A/O ponds (14)；For biology
Oxidation reaction oxygen supply is uniform, is carried out beneficial to reaction；The outlet of the coagulative precipitation tank (15) passes through pipeline and ozone-oxidizing device
(16) entrance connection, the liquid outlet of the ozone-oxidizing device (16) is connected by pipeline with running sand filtration pond (17), described
The backwash water out in running sand filtration pond (17) passes through pipeline communication with the import of coagulative precipitation tank (15)；For returning for backwash waste
Receive and utilize；The delivery port of the running sand filtration pond (17) is connected by pipeline with the entrance of reuse water pump (18), the recycle-water
The outlet of pump (18) is communicated by pipeline with the inlet of accelerator (19), the accelerator (19)
Liquid outlet is connected by pipeline with the inlet of more medium filter (20), and the liquid outlet of the more medium filter (20) passes through
Pipeline is sequentially communicated with self-cleaning filter (21), ultrafiltration apparatus (22), cartridge filter (23), reverse osmosis unit (24), institute
The concentrated phase liquid outlet for stating reverse osmosis unit (24) is connected by pipeline with the inlet of concentrated water filter (25), the concentrated water reverse osmosis
The inlet of saturating cartridge filter (26) is connected with the liquid outlet of concentrated water filter (25), the concentrated water reverse osmosis cartridge filter
(26) it is connected by concentrated water reverse osmosis booster pump (27) with the inlet of concentrated water counter-infiltration (28) by pipeline, the concentrated water reverse osmosis
The liquid outlet of (28) is connected by pipeline with reuse pool (29) thoroughly.
2. processing and the recycle device of a kind of gasification of poor coal waste water according to claim 1, it is characterised in that：Institute
The ultrafiltration apparatus (22) stated can be immersion, external-compression type or inner pressed.
3. processing and the recycle device of a kind of gasification of poor coal waste water according to claim 1, it is characterised in that：Institute
The reverse osmosis unit (24) stated can be one-level, two-stage or multistage.
4. a kind of processing of the gasification of poor coal waste water described in utilization claims 1 to 33 is handled with reclaiming with recycle device
Utilize the method for gasification of poor coal waste water, it is characterised in that：Carry out in accordance with the following methods：
The first step, from coal pressurizing gasifying apparatus inferior convey come coal gasification waste water through supercooling, flash distillation and tar Gravity Separation,
After media filtration, water pump (1) is isolated by gas liquor and lifted, is preheated through heat exchanger (2), the gas liquor after preheating enters depickling
Deammoniation tower (3) carries out steam alkalescence stripping, removing NH3 and escaping gas, and 1.5MPa superheated steams are passed directly into depickling deamination
Tower (3) bottom, liquid caustic soda is added by top and mixed with waste water, is gone out the volatile substances such as NH3, H2S, CO2 of tower and is sent to boiler water reuse
Or mix burning；
Second step, the waste water through removing NH3 and escaping gas is sent to extraction tower (4), proceeds phenol removal, total phenol is down to
Below 800mg/L；Water outlet enters water tower (5), and extractant removing processing is carried out to waste water；The waste water COD cr for removing extractant is small
In 4500mg/L, BOD5 is less than 1500mg/L, and total phenol is less than 800mg/L；
3rd step, the waste water for removing extractant enters oil interceptor (7) through dilute phenol water pump (6), and gravity oil-removing processing is carried out to waste water,
Waste water after oil interceptor (7) processing is suspended in coagulation floatation (8) to waste water and oil emulsion removes and gone oil removal；
4th step, the water outlet of coagulation floatation (8) is in phenol ammonia sewage regulating reservoir (9), with full factory site Ping Shui, safety fourth phase waste water
Mixing, through one-stage hydrolysis pool (10), two grades of hydrolytic tanks (11), is hydrolyzed acidification to sewage, larger molecular organicses is entered
Row is decomposed, and is conducive to biochemical treatment；
5th step, sewage enters one-level A/O ponds (12), anaerobism, Aerobic biological process is carried out to sewage, effectively in degraded sewage
Organic pollution and ammonia nitrogen pollutant, removing 90%CODcr, the water outlet of ammonia nitrogen are through three-level hydrolytic tank (13) to two grades of A/O ponds
(14) anaerobism, Aerobic biological process, are carried out to sewage, further remaining organic matter and ammonia nitrogen in degraded sewage；Two grades of A/O ponds
(14) water outlet CODcr, which is less than 200mg/L, ammonia nitrogen and is less than 12mg/L, arrives coagulative precipitation tank (15), to sewage progress materialization absorption,
Coagulation, precipitation, decolorization；Water outlet CODcr enters ozone-oxidizing device (16) less than 120mg/L, and the difficult degradation in waste water is had
Machine thing is further removed；The coagulation floatation (8) uses nitrogen degreasing technique, can prevent coagulation floatation air oil removal process
It is middle to produce a large amount of foams, generate more cyclopentenone, other heterocyclic compounds；
6th step, CODcr is less than 60mg/L water outlet through running sand filtration pond (17), reduces after the suspension of waste water through reuse water pump
(18) reuse water device is arrived；Water outlet by reuse water pump (18) to accelerator (19) remove waste water in temporary hardness and
Suspension is turbid into more medium filter (20) filtering drop；Turbidity is less than 5mg/L multi-medium filtering (20) water outlet through self-cleaning
Filter (21) is delivered to ultrafiltration apparatus (22) further removing organic matter and suspension；
7th step, ultrafiltration apparatus (22) water outlet enters reverse osmosis unit (24) through cartridge filter (23) and carries out one-level desalination；Electricity
Conductance is less than 100 μ s/cm fresh water and sends into circulating cooling make-up water system to reuse pool (29)；Concentrated water is removed through concentrated water filter (25)
Suspension, it is anti-into concentrated water after being pressurized into concentrated water reverse osmosis cartridge filter (26) by concentrated water reverse osmosis booster pump (27)
Permeate the most of ion of (28) removing, concentrated water counter-infiltration (28) dilute side water outlet to reuse pool (29) feeding circulating cooling make-up water system
System, concentrated water to strong brine pond.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746160A (en) * | 2017-11-28 | 2018-03-02 | 北京中科康仑环境科技研究院有限公司 | It is a kind of to be used for the processing of low temperature distillation waste water and reuse method in coal |
| CN107935299A (en) * | 2017-11-17 | 2018-04-20 | 山西振钢化工有限公司 | A kind of coking waste water treatment method and device |
| CN109574378A (en) * | 2018-11-21 | 2019-04-05 | 河海大学 | A kind of low cost agricultural chemicals waste water processing optimization technique |
| CN112429900A (en) * | 2020-11-18 | 2021-03-02 | 内蒙古晶泰环境科技有限责任公司 | Method for optimizing trend of membrane concentration ultrafiltration cross flow concentrated water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665309A (en) * | 2009-09-18 | 2010-03-10 | 华南理工大学 | Method for treating gasified waste water containing high-concentration phenol and ammonia |
| US20110097257A1 (en) * | 2009-10-22 | 2011-04-28 | Mitsubishi Heavy Industries, Ltd. | Ammonia recovery device and recovery method |
| CN103922549A (en) * | 2014-05-06 | 2014-07-16 | 天脊煤化工集团股份有限公司 | Coal gasification wastewater treating and recycling method and device |
| CN105016577A (en) * | 2015-07-08 | 2015-11-04 | 安徽东华环境市政工程有限责任公司 | Advanced treatment system for process sewage and advanced treatment method for sewage |
| CN105330110A (en) * | 2015-12-08 | 2016-02-17 | 神华集团有限责任公司 | Direct coal liquefaction sewage treatment system and method |
| CN207227223U (en) * | 2017-08-16 | 2018-04-13 | 中煤平朔集团有限公司 | A kind of processing of gasification of poor coal waste water and recycle device |
-
2017
- 2017-08-16 CN CN201710701107.2A patent/CN107265794A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665309A (en) * | 2009-09-18 | 2010-03-10 | 华南理工大学 | Method for treating gasified waste water containing high-concentration phenol and ammonia |
| US20110097257A1 (en) * | 2009-10-22 | 2011-04-28 | Mitsubishi Heavy Industries, Ltd. | Ammonia recovery device and recovery method |
| CN103922549A (en) * | 2014-05-06 | 2014-07-16 | 天脊煤化工集团股份有限公司 | Coal gasification wastewater treating and recycling method and device |
| CN105016577A (en) * | 2015-07-08 | 2015-11-04 | 安徽东华环境市政工程有限责任公司 | Advanced treatment system for process sewage and advanced treatment method for sewage |
| CN105330110A (en) * | 2015-12-08 | 2016-02-17 | 神华集团有限责任公司 | Direct coal liquefaction sewage treatment system and method |
| CN207227223U (en) * | 2017-08-16 | 2018-04-13 | 中煤平朔集团有限公司 | A kind of processing of gasification of poor coal waste water and recycle device |
Non-Patent Citations (1)
| Title |
|---|
| 于勇等 编著: "《钢铁工业绿色工艺技术》", 31 January 2017, 冶金工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935299A (en) * | 2017-11-17 | 2018-04-20 | 山西振钢化工有限公司 | A kind of coking waste water treatment method and device |
| CN107935299B (en) * | 2017-11-17 | 2024-01-05 | 山西振钢生物科技股份有限公司 | Coking wastewater treatment method and device |
| CN107746160A (en) * | 2017-11-28 | 2018-03-02 | 北京中科康仑环境科技研究院有限公司 | It is a kind of to be used for the processing of low temperature distillation waste water and reuse method in coal |
| CN109574378A (en) * | 2018-11-21 | 2019-04-05 | 河海大学 | A kind of low cost agricultural chemicals waste water processing optimization technique |
| CN112429900A (en) * | 2020-11-18 | 2021-03-02 | 内蒙古晶泰环境科技有限责任公司 | Method for optimizing trend of membrane concentration ultrafiltration cross flow concentrated water |
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