CN106495396A - A kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt and processing method - Google Patents
A kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt and processing method Download PDFInfo
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
Abstract
The invention discloses a kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt, described processing system includes electrocatalysis oxidation apparatus, Facultative Halophiles biochemical system, the aerobic devices of MBR, electrodialysis cell, ultrafiltration and RO units；Described Facultative Halophiles biochemical system includes the aerobic device of Facultative Halophiles anaerobic device, Facultative Halophiles, Facultative Halophiles BAF；The invention also discloses a kind of a kind of processing method of the high organic matter wastewater from chemical industry of high salt of the recycling treatment system of the high organic matter wastewater from chemical industry of high salt, the present invention efficiently solves the problems, such as the recycling treatment of the high organic matter wastewater from chemical industry of high salt, the resource rate of recovery of water and salt is high, basic non-wastewater discharge, produce without solid waste, producing water water quality preferably, is produced purity salt height, has farthest reclaimed the water resource in the high organic matter wastewater from chemical industry of high salt and salt；The zero-emission of waste water in enterprise production process is achieved, with important environmental benefit.
Description
Technical field
The invention belongs to field of industrial waste water treatment, specifically refers at a kind of resource of the high organic matter wastewater from chemical industry of high salt
Reason system and processing method.
Background technology
The sulfuric acid for using the soda acids such as hydrochloric acid, sulfuric acid, NaOH, nitric acid and correlation in the production process of chemical industry more
The salt such as sodium, sodium chloride, sodium nitrate, therefore, wastewater from chemical industry is mainly characterized by：High salt（Mass fraction is 3% ~ 30%）, high organic
Thing（COD>10000mg/L）.Reduce the salt content of waste water during the process of this kind of waste water often by diluting, salt content reduces
The discharge of waste water afterwards not only results in the deterioration of environment, also results in the salinization of soil phenomenon in soil and basin.In addition in waste water
Organic matter often containing phenyl ring type organic and halogenated hydrocarbon organic matter, its biochemical is poor, with higher bio-toxicity, deposits
In larger Environmental security hidden danger, or even the life of people can be affected daily.
The method of the high organic wastewater of this kind of high salt of conventional process is：1）It is concentrated by evaporation desalination, institute in this method process
The energy consumption for needing is higher, and it is useless that the salt produced after concentration belongs to danger, it is difficult to processes；2）Conventional process, this side is carried out after dilution
Method processes waste water increases the total release of enterprise wastewater, while carrying out the skills such as Fenton oxidation, iron-carbon micro-electrolysis, catalysis oxidation
Art, these technology are limited by factors such as useless Organic substance in water, method condition, processing costs, cause still to contain in process water outlet
There are part hardly degraded organic substance, later stage still can have undesirable effect environment.These treatment technologies, on the one hand do not reduce
The discharge capacity of pollutant in environment, is the increase in discharge capacity on the contrary, on the other hand also makes the development of many chemical enterprises be subject to pole
Big restriction.
The resource profit of the extracting method of inorganic salts and industrial wastewater in a kind of industrial wastewater is disclosed in existing technology
Use method（CN103224261 B）, including industrial wastewater to be concentrated by evaporation, solid inorganic salt is obtained, solid inorganic salt is being less than
Or contact with oxygen-containing gas at a temperature of being equal to 1000 DEG C, carbonization obtains high purity inorganic salt.The patent is conducive to the resource of salt,
But do not refer in the technology and resource is not carried out to waste water, while during application, energy consumption is higher cannot commonly use.
At present for the resource of chemical wastewater treatment during, be part resource, the resource of water or salt mostly
Resource, single recycling of water resource or salt resource present in the high organic matter wastewater from chemical industry resource process of high salt in existing technology
Change problem, is not carried out the complete resource to this kind of waste water, makes the salt in waste water or water resource waste, and utilizes suitable work
Skill and equipment realize the resource of salt and water to the high organic wastewater of high salt, and there is for an enterprise far-reaching influence and society
Can benefit.
Content of the invention
For in prior art to the weak point during wastewater from chemical industry resource, the invention provides a kind of high salt is high
The recycling treatment system of organic matter wastewater from chemical industry and processing method, the processing system is using electro-catalysis, Facultative Halophiles biochemistry, electric osmose
Combining for analysis, membrane separation technique and sal prunella co-production technology, realizes the recycling treatment of the high organic matter wastewater from chemical industry of high salt；With
When the method can obtain the water resource that can be used for industrial process waters requirement, and the higher sodium sulphate of purity and sodium chloride, real
The existing maximized utilization of resources.
The present invention is achieved in that a kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt, described place
Reason system includes that electrocatalysis oxidation apparatus, Facultative Halophiles biochemical system, the aerobic devices of MBR, electrodialysis cell, ultrafiltration and RO are mono-
Unit；Described Facultative Halophiles biochemical system includes the aerobic device of Facultative Halophiles anaerobic device, Facultative Halophiles, Facultative Halophiles BAF.
Further, the electrocatalytic oxidation pole plate in described electrocatalysis oxidation apparatus is that titanium-based analyses oxygen pole plate or titanium-based analysis chlorine
Pole plate or graphite electrode plate；Described pole plate is constructed as one group or multiple serial or parallel connections.
Further, described Facultative Halophiles anaerobic device is the ABR anaerobic baffled reactors for being inoculated with anaerobism Facultative Halophiles, described
Facultative Halophiles are immobilized on the biological activated carbon that particle diameter is 3 ~ 6mm.
Further, the aerobic device of described Facultative Halophiles is to be inoculated with aerobic Facultative Halophiles in biological activated carbon reactor, i.e., resistance to
The aerobic devices of salt bacterium BAC, described Facultative Halophiles are immobilized on the biological activated carbon that particle diameter is 30 ~ 120 mesh.
Further, the carrier in described Facultative Halophiles BAF is volcano fitros or biologically active high-area carbon or fire
Mountain fitros and the mixing of biologically active high-area carbon；Described diameter of carrier is 3 ~ 6mm.
Further, the aperture of the MBR films for adopting in the aerobic devices of described MBR is for 0.1 ~ 0.2um；Described membrane material is
Kynoar or polytetrafluoroethylene (PTFE)；The form of the MBR films is Flat Membrane or hollow-fibre membrane.
Further, the membrane module of described electrodialysis cell is homogeneous membrane or heterogeneous membrane.
Further, the ultrafiltration membrane aperture used in described ultra filtration unit is 10nm ~ 0.01um, and molecular cut off is 1000
~ 100000Da, membrane module form are board-like, rolling or dish-style.
Further, the membrane module material of the described RO units is that polyamide, Kynoar or polypropylene are fine；Described
Membrane aperture be 0.1nm ~ 1nm, the membrane module of the RO units is board-like, rolling or dish-style.
The invention also discloses a kind of processing method of the high organic matter wastewater from chemical industry of high salt, comprises the following steps that：
（1）Wastewater pH is adjusted to 6 ~ 9, waste water pumps into electrocatalysis oxidation apparatus, carries out electrocatalysis oxidation reaction；At electrocatalytic oxidation
Reason, reduces organic concentration and improves the biodegradability of waste water；Organic matter and nitrogen substance in effluent part is specially removed
（Organic nitrogen, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen etc.）, reduce poisonous and harmful and hardly degraded organic substance in waste water, improve waste water
Biodegradability；
（2）Electrocatalytic oxidation water outlet flows into biochemical distribution reservoir, and it is 2% ~ 8% to adjust pH to 6 ~ 8, TDS；Biochemical water distribution adjusts TDS
2% ~ 8%, as the Facultative Halophiles of the present invention are 0.5% ~ 10% to the tolerance limit of TDS, therefore will change water distribution and adjust to Facultative Halophiles institute
Within the salinity of tolerance is divided into；
（3）Biochemical water distribution waste water pumps into Facultative Halophiles anaerobic pond, under the effect of Facultative Halophiles anaerobic device carries out anaerobic biochemical reaction；
（4）The gravity flow of Facultative Halophiles anaerobic effluent is entered in Facultative Halophiles BAC Aerobic Ponds, is carried out aerobic under the aerobic device effect of Facultative Halophiles
Biochemical reaction；
（5）Facultative Halophiles BAC Aerobic Ponds water outlet gravity flow enters Facultative Halophiles BAF and carries out aerobic biochemical reaction；Have in water outlet
Machine thing is removed, and the SS contents in waste water are relatively low, suitably carries out electrodialysis and follow-up ultrafiltration+RO is processed, so as to be expired
The water of the standard of sufficient industrial production reuse, realizes the resource of water；
（6）The gravity flow of Facultative Halophiles effluent of aeration biological filter enters MBR Aerobic Ponds, waste water is filtered under the effect of MBR devices；
By a series of Facultative Halophiles biochemical treatment, the organic matter in waste water can be removed under certain salinity；MBR is aerobic effective section
The microorganism of biochemical stage is stayed, the microbial biomass in biochemistry pool is kept, increases sludge concentration and sludge retention time in biochemistry pool,
Removal of the reinforcing to hardly degraded organic substance, and ensure that effluent SS content concn is relatively low, is easy to follow-up electrodialysis, ultrafiltration+RO
Process；
（7）MBR Aerobic Pond water outlets pump into electrodialysis plant, and electrodialysis plant carries out desalting processing to waste water, obtains height after process
Salt solution and desalination water outlet；Electrodialytic process is transferred to the TDS in waste water in haline water from waste water, reduces solventing-out
The treating capacity in stage, reducing energy consumption reduce operating cost；
（8）Haline water after desalting processing pumps into sal prunella combined production device；Salt in electrodialysis haline water is carried out point by sal prunella coproduction
From purifying, sal prunella coproduction distills water outlet and mother liquor reflux to electrocatalytic oxidation unit；By sal prunella co-production technology to by waste water
Sodium sulphate and sodium chloride carry out classification purifying, obtain more clean salt, industrial production reuse can be carried out, the money of salt is realized
Source；And in sal prunella joint process produce distillate and mother liquor, urge due to being then back to electricity containing part hardly degraded organic substance
Change oxidation unit, carrying out oxidation processes reduces the bio-toxicity raising biodegradability of organic matter, realizes salt in chemical wastewater treatment
With the resource of water, zero-emission is realized；
（9）Desalination water outlet after desalting processing pumps into ultrafiltration apparatus, and ultra-filtration water is pumped into RO devices finally；Water quality can be obtained
The higher industrial production recycle-water of index；And the difficult for biological degradation organic matter and inorganic salt and other material under ultrafiltration+RO retentions, surpass
The trap water of filter+RO is then back to electrocatalytic oxidation unit and is processed again, and the toxicity for reducing waste water realizes organic matter whole
Inner loop in individual handling process is processed, so as to remove the organic matter in waste water completely；Ensure that effluent quality reaches enterprise simultaneously
Industry produces the standard of reuse, effectively reduces fouling membrane effect, extends the time of continuous and steady operation.
The present invention is compared to the beneficial effect of prior art：
（1）The present invention first using electro-catalysis+Facultative Halophiles anaerobism+Facultative Halophiles BAC aerobic+Facultative Halophiles BAF+MBR is good
Oxygen+electrodialysis+ultrafiltration+RO+ sal prunella coproduction coupling technique processes the high organic matter wastewater from chemical industry of high salt；
（2）The processing method of the present invention is simple to operate, easily operates；Wastewater treatment process is reduced compared with common biochemical treatment
Extension rate, reduces dilution water consumption, reduces operating cost；
（3）The present invention efficiently solves the problems, such as that the resource of the recycling treatment of the high organic matter wastewater from chemical industry of high salt, water and salt is returned
High income, basic non-wastewater discharge are produced without solid waste, and producing water water quality preferably, produces purity salt high.
（4）The present invention carries out recycling treatment to the high organic matter wastewater from chemical industry of high salt, has farthest reclaimed high salt high
Water resource and salt in organic matter wastewater from chemical industry；The zero-emission of waste water in enterprise production process is achieved, with important environment
Benefit.
Description of the drawings
Fig. 1 is the technique stream of a kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt of the invention and processing method
Journey schematic diagram.
Specific embodiment
The present invention provides a kind of recycling treatment system of the high organic matter wastewater from chemical industry of high salt and processing method, for making this
Bright purpose, technical scheme and effect are clearer, clearly, and referring to the drawings and give an actual example to the present invention further specifically
Bright.It should be understood that described herein be embodied as, only in order to explain the present invention, being not intended to limit the present invention.
As shown in figure 1, high for high salt organic matter wastewater from chemical industry is adjusted pH to 6 ~ 9 first, waste water pumps into electrocatalytic oxidation dress
Put, electrocatalysis oxidation reaction is carried out by accessing dc source；Electrocatalytic oxidation water outlet flows into biochemical distribution reservoir, in biochemical water distribution
It is 2% ~ 8% that the pH for adjusting waste water in pond is 6 ~ 8, TDS, within the salinity tolerated with reaching Facultative Halophiles is divided into；Biochemical water distribution is given up
Water pumps into Facultative Halophiles anaerobic pond and carries out anaerobic biochemical reaction, and Facultative Halophiles anaerobic device is the ABR anaerobism folding for being inoculated with anaerobism Facultative Halophiles
Flow reactor, Facultative Halophiles are immobilized on the biological activated carbon that particle diameter is 3 ~ 6mm；The gravity flow of Facultative Halophiles anaerobic effluent enters Facultative Halophiles
Aerobic biochemical reaction is carried out in BAC Aerobic Ponds, and biological activated carbon reaction is wherein inoculated with aerobic Facultative Halophiles, and Facultative Halophiles are immobilized on particle diameter
On biological activated carbon for 30 ~ 120 mesh；Facultative Halophiles BAC Aerobic Ponds water outlet gravity flow enters Facultative Halophiles BAF and enters to act charitably
Oxygen biochemical reaction, the carrier in Facultative Halophiles BAF are volcano fitros or biologically active high-area carbon or volcano fitros and life
Thing absorbent charcoal carrier mixes, and diameter of carrier is 3 ~ 6mm；The gravity flow of Facultative Halophiles effluent of aeration biological filter enters MBR Aerobic Ponds, adopts
MBR films aperture be 0.1 ~ 0.2um, the MBR devices in MBR Aerobic Ponds are filtered to waste water, by the suspension in waste water
It is trapped in MBR Aerobic Ponds with larger molecular organicses；MBR Aerobic Pond water outlets pump into electrodialysis plant, and electrodialysis plant is to waste water
Desalting processing is carried out, water outlet is divided into two parts：Desalination water outlet and haline water；Desalination water outlet pumps into ultrafiltration apparatus, and waste water is entered
Row hyperfiltration treatment, further remove waste water in SS, ultrafiltration membrane aperture be 10nm ~ 0.01um, molecular cut off be 1000 ~
100000Da, ultra-filtration water pump into RO devices, carry out reverse-osmosis treated to waste water, and RO membrane apertures are 0.1nm ~ 1nm, retain waste water
In organic matter, inorganic salts, the material such as SS, water outlet can be with reuse to producing, and ultrafiltration and RO trap waters be back to electrocatalytic oxidation；
Haline water pumps into sal prunella combined production device, separates middle from waste water for the sodium sulphate and sodium chloride in waste water, obtains sodium sulphate and chlorine
Change sodium solid, salt carries out reuse or sale, realizes the resource of salt, distillate and mother liquor reflux to electrocatalytic oxidation pond.Specifically
Embodiment as follows：
Embodiment 1
The water quality characteristic for needing the high organic matter wastewater from chemical industry of high salt to be processed is：Wastewater pH 5.4, conductance 50mS/cm,
CODCr15000mg/L, Na+43000 mg/L, NH4 -N 300mg/L, Cl-60000mg/L, SO4 2-7000mg/L.
Electrocatalytic oxidation pole plate used, negative electrode adopt titanium plate, anode to analyse chlorine pole plate using titanium-based；MBR films used are flat board
Film, membrane aperture are 0.1 ~ 0.2um；Electrodialytic membranes used is homogeneous membrane；Milipore filter used is polyamide rolled membrane module, retains and divides
Son amount is 50000Da；RO films used are acetate fiber rolled membrane module.
Concrete operation step is as follows：
（1）Electrocatalytic oxidation：The high organic matter wastewater from chemical industry of high salt pumps into electrocatalytic oxidation water inlet end by water, carries out electrocatalytic oxidation
Change is processed.
（2）Biochemical water distribution：It is 11% according to the TDS concentration in waste water, the TDS for adjusting waste water is 2% ~ 8%, carries out biochemical place
Reason, distribution reservoir water inlet are derived from RO water outlets or ultra-filtration water.
（3）Facultative Halophiles anaerobism+Facultative Halophiles BAC is aerobic+and BAF+MBR is aerobic for Facultative Halophiles：Biochemical distribution reservoir water outlet
Successively through Facultative Halophiles anaerobism+Facultative Halophiles BAC aerobic+Facultative Halophiles BAF+MBR Aerobic Process for Treatment, water outlet carries out electrodialysis
Process.
（4）Electrodialysis：MBR water outlets carry out electrodialysis process, the salt in waste water is shifted and is separated, and waste water is divided into two
Point：A part of waste water TDS contents are less than 0.5%, and another part waste water TDS is 20% or so.The low waste water of TDS contents carries out step
（5）Process, the high waste water of TDS contents carries out step（6）Process.
（5）Ultrafiltration+RO：The waste water low to TDS after electrodialysis process carries out ultrafiltration+RO process successively, in retention waste water
Pollutant, obtains the water outlet for meeting enterprise's industrial water standard, carries out reuse；The return of waste water of retention enters to electrocatalytic oxidation
Row step（1、2、3、4、5）Circular treatment.
（6）Sal prunella coproduction：The waste water high to TDS after electrodialysis process directly carries out sal prunella coproduction process, isolated pure
The higher sodium chloride of degree and sodium sulphate, while also distillate and mother liquor are produced.Mother liquor and distillate are back to electrocatalytic oxidation,
Carry out step（1、2、3、4、5、6）Circular treatment.
In running, the operating condition of electrocatalytic oxidation unit is：Influent waste water pH be 5.4, by add hydrochloric acid or
NaOH makes the pH of waste water maintain between 7 ~ 8, and current density is 30mA/cm2, hydraulic detention time is 2h；Biochemical water distribution
It is 3% that pond adjusts the TDS of waste water；MBR films water flow is 300Lm-2d-1；10 ~ 12V of voltage when electrodialysis runs；Milipore filter goes out
Discharge is 400 Lm-2h-1；RO films water flow is 30 Lm-2h-1.
Under the operating conditions described above, RO effluent qualities are characterized as：CODCrLittle less than 30mg/L, TDS less than 10mg/L, Cl-
In 50us/cm, producing water water quality can be back to production technology better than running water；Sodium chloride purity is the sodium sulphate purity more than 99%
It is more than 99%, can be used for enterprise's production or sell or for ion film caustic soda etc..
The high organic matter wastewater from chemical industry of high salt processes Water Sproading rate 99% by above-mentioned steps, and the salt rate of recovery is more than 99%.
Embodiment 2
The water quality characteristic for needing the high organic matter wastewater from chemical industry of high salt to be processed is：Wastewater pH 6.4, conductance 50mS/cm,
CODCr10000mg/L, Na+36000 mg/L, NH4 -N 300mg/L, Cl-3900mg/L, SO4 2-67000mg/L.
Electrocatalytic oxidation pole plate used, negative electrode adopt titanium plate, anode to analyse oxygen pole plate using titanium-based；MBR films used are flat board
Film, membrane aperture are 0.1 ~ 0.2um；Electrodialytic membranes used is homogeneous membrane；Milipore filter used is polyamide rolled membrane module, retains and divides
Son amount is 50000Da；RO films used are acetate fiber rolled membrane module.
Specific operating procedure is same as Example 1.
In running, the operating condition of electrocatalytic oxidation unit is：Influent waste water pH be 5.4, by add hydrochloric acid or
NaOH makes the pH of waste water maintain between 4 ~ 6, and current density is 25mA/cm2, hydraulic detention time is 2h；Biochemical water distribution
It is 5% that pond adjusts the TDS of waste water；MBR films water flow is 300Lm-2d-1；10 ~ 12V of voltage when electrodialysis runs；Milipore filter goes out
Discharge is 400 Lm-2h-1；RO films water flow is 30 Lm-2h-1.
Under the operating conditions described above, RO effluent qualities are characterized as：CODCr30mg/L, SO are less than less than 10mg/L, Cl-4 2-Little
50us/cm is less than in 10mg/L, TDS, producing water water quality can be back to production technology better than running water；Sodium chloride purity be more than
99%, sodium sulphate purity is more than 99%, can be used for enterprise's production or sells or for ion film caustic soda etc..
The high organic matter wastewater from chemical industry of high salt processes Water Sproading rate 99% by above-mentioned steps, and the salt rate of recovery is more than 99%.
Embodiment 3
The water quality characteristic for needing the high organic matter wastewater from chemical industry of high salt to be processed is：Wastewater pH 3.4, conductance 100mS/cm,
CODCr20000mg/L, Na+72000 mg/L, NH4 -N 500mg/L, Cl-60000mg/L, SO4 2-68000mg/L.
Electrocatalytic oxidation pole plate used, negative electrode adopt titanium plate, anode to analyse oxygen pole plate using titanium-based；MBR films used are flat board
Film, membrane aperture are 0.1 ~ 0.2um；Electrodialytic membranes used is homogeneous membrane；Milipore filter used is polyamide rolled membrane module, retains and divides
Son amount is 50000Da；RO films used are acetate fiber rolled membrane module.
Specific operating procedure is same as Example 1.
In running, the operating condition of electrocatalytic oxidation unit is：Influent waste water pH be 5.4, by add hydrochloric acid or
NaOH makes the pH of waste water maintain between 4 ~ 6, and current density is 25mA/cm2, hydraulic detention time is 2h；Biochemical water distribution
It is 4% that pond adjusts the TDS of waste water；MBR films water flow is 300Lm-2d-1；10 ~ 12V of voltage when electrodialysis runs；Milipore filter goes out
Discharge is 400 Lm-2h-1；RO films water flow is 30 Lm-2h-1.
Under the operating conditions described above, RO effluent qualities are characterized as：CODCr30mg/L, SO are less than less than 10mg/L, Cl-4 2-Little
50us/cm is less than in 10mg/L, TDS, producing water water quality can be back to production technology better than running water；Sodium chloride purity be more than
99%, sodium sulphate purity is more than 99%, can be used for enterprise's production or sells or for ion film caustic soda etc..
The high organic matter wastewater from chemical industry of high salt processes Water Sproading rate 99% by above-mentioned steps, and the salt rate of recovery is more than 99%.
The preferable possible embodiments of the present invention are the foregoing is only, not thereby limits to the scope of the claims of the present invention, thus all
It is the equivalence changes that is made with description of the invention and accompanying drawing content, includes and protection scope of the present invention.
Claims (10)
1. the recycling treatment system of the high organic matter wastewater from chemical industry of a kind of high salt, it is characterised in that described processing system includes
Electrocatalysis oxidation apparatus, Facultative Halophiles biochemical system, the aerobic devices of MBR, electrodialysis cell, ultrafiltration and RO units；Described is resistance to
Salt bacterium biochemical system includes the aerobic device of Facultative Halophiles anaerobic device, Facultative Halophiles, Facultative Halophiles BAF.
2. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
Electrocatalysis oxidation apparatus in electrocatalytic oxidation pole plate be that titanium-based analyses oxygen pole plate or titanium-based analysis chlorine pole plate or graphite electrode plate；Described
Pole plate be constructed as one group or multiple serial or parallel connections.
3. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
Facultative Halophiles anaerobic device be the ABR anaerobic baffled reactors for being inoculated with anaerobism Facultative Halophiles, described Facultative Halophiles are immobilized on particle diameter for 3
On the biological activated carbon of ~ 6mm.
4. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
The aerobic device of Facultative Halophiles be to be inoculated with aerobic Facultative Halophiles in biological activated carbon reactor, i.e. aerobic devices of Facultative Halophiles BAC are described
Facultative Halophiles be immobilized on particle diameter be 30 ~ 120 mesh biological activated carbon on.
5. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
Facultative Halophiles BAF in carrier be volcano fitros or biologically active high-area carbon or volcano fitros and biological activated carbon
Carrier mixes；Described diameter of carrier is 3 ~ 6mm.
6. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
The aerobic devices of MBR in the aperture of MBR films that adopts for 0.1 ~ 0.2um；Described membrane material is Kynoar or polytetrafluoro
Ethene；The form of the MBR films is Flat Membrane or hollow-fibre membrane.
7. the processing system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described electric osmose
The membrane module of analysis unit is homogeneous membrane or heterogeneous membrane.
8. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
Ultra filtration unit used in ultrafiltration membrane aperture be 10nm ~ 0.01um, membrane module form is board-like, rolling or dish-style.
9. the recycling treatment system of the high organic matter wastewater from chemical industry of high salt according to claim 1, it is characterised in that described
The RO units membrane module material be polyamide, Kynoar or polypropylene fine；Described membrane aperture be 0.1nm ~
1nm, the membrane module of the RO units is board-like, rolling or dish-style.
10. the processing method of the high organic matter wastewater from chemical industry of a kind of high salt, it is characterised in that comprise the following steps that：
（1）Wastewater pH is adjusted to 6 ~ 9, waste water pumps into electrocatalysis oxidation apparatus, carries out electrocatalysis oxidation reaction；
（2）Electrocatalytic oxidation water outlet flows into biochemical distribution reservoir, and it is 2% ~ 8% to adjust pH to 6 ~ 8, TDS；
（3）Biochemical water distribution waste water pumps into Facultative Halophiles anaerobic pond, under the effect of Facultative Halophiles anaerobic device carries out anaerobic biochemical reaction；
（4）The gravity flow of Facultative Halophiles anaerobic effluent is entered in Facultative Halophiles BAC Aerobic Ponds, is carried out aerobic under the aerobic device effect of Facultative Halophiles
Biochemical reaction；
（5）Facultative Halophiles BAC Aerobic Ponds water outlet gravity flow enters Facultative Halophiles BAF and carries out aerobic biochemical reaction；
（6）The gravity flow of Facultative Halophiles effluent of aeration biological filter enters MBR Aerobic Ponds, waste water is filtered under the effect of MBR devices；
（7）MBR Aerobic Pond water outlets pump into electrodialysis plant, and electrodialysis plant carries out desalting processing to waste water；
（8）Haline water after desalting processing pumps into sal prunella combined production device；
（9）Desalination water outlet after desalting processing pumps into ultrafiltration apparatus, and ultra-filtration water is pumped into RO devices finally.
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