CN104529035B - High-concentration organic wastewater zero-discharge treatment system and method - Google Patents
High-concentration organic wastewater zero-discharge treatment system and method Download PDFInfo
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- CN104529035B CN104529035B CN201410822104.0A CN201410822104A CN104529035B CN 104529035 B CN104529035 B CN 104529035B CN 201410822104 A CN201410822104 A CN 201410822104A CN 104529035 B CN104529035 B CN 104529035B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000002425 crystallisation Methods 0.000 claims abstract description 49
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- 230000008025 crystallization Effects 0.000 claims abstract description 47
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Abstract
The invention discloses a high-concentration organic wastewater zero-discharge treatment system. The system comprises a pre-treatment system, an ultrafiltration system, a nano-filtration system and a reverse osmosis system which are sequentially connected, wherein the pre-treatment system is provided with a wastewater inlet; the reverse osmosis system is provided with a reclaimed water outlet; a concentrated water outlet of the nano-filtration system and a concentrated water outlet of the reverse osmosis system are connected with a high-pressure reverse osmosis system; a water outlet of the high-pressure reverse osmosis system is connected to the reclaimed water outlet of the reverse osmosis system; a concentrated water opening of the high-pressure reverse osmosis system is connected to an evaporation crystallization system, and a water outlet of the evaporation crystallization system is connected to the reclaimed water outlet of the reverse osmosis system; and the evaporation crystallization system is provided with a solid crystal outlet which is connected with a solid recycling device. The system can be used for realizing multi-stage high-concentration organic wastewater treatment by means of organic combination of multiple devices, the treated high-concentration organic wastewater can reach the standard for recycling, and zero discharge can be realized.
Description
Technical field
The present invention relates to water technology, more particularly to a kind of zero discharge treatment system used in industry high-concentration organic wastewater
System and method, belong to industrial waste water treatment.
Background technology
Shortage of water resources becomes the key factor of restriction China's economy and social development.Industrial water withdrawal accounts for national water intaking
The 20% of amount, wherein main highly water intensive industry is thermal power generation, weaving, papermaking, iron and steel and petrochemical industry.For further
Strengthen Industrial Water Saving work, alleviate the imbalance between supply and demand of China water resource, contain the impetus of water environment degradation, promote industrial economy with
The coordinated development of water resource and environment, promulgates for 2005《Chinese water-saving technology policy outline》First proposed the outer waste discharge of development
The requirement of Water circulation and " zero-emission " technology.In November, 2007, country newly promulgated《National environmental protection Eleventh Five-Year Plan》More
Be distinctly claimed the key industrys such as iron and steel, electric power, chemical industry, coal promote cycling utilization of wastewater, strive for waste water discharge less or
Zero-emission.
Waste water zero discharge treatment process that at present country more generally adopts is mainly with common embrane method+evaporative crystallization as core
Handling process, such technique presently, there are fluctuation of service, film easily dirty gambling, investment and high operating cost the problems such as, fail
Real zero-emission is realized, is especially the failure to realize processing high concentrated organic wastewater low energy consumption realize zero-emission.
The content of the invention
Based on the problems of above-mentioned prior art, the present invention provides a kind of zero discharge treatment of high concentrated organic wastewater
System and method, in the case where system stable operation is ensured, to realizing zero-emission after treatment of Organic Wastewater, thoroughly solves industry
The discharge of wastewater problem of enterprise.
To solve above-mentioned technical problem, the present invention provides a kind of high concentrated organic wastewater zero-discharge treatment system, the system
Including：
Pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system being sequentially connected；The pretreatment system is provided with
Water intake；
The counter-infiltration system is provided with reuse outlet；
The concentrated water outlet of the nanofiltration system and the concentrated water outlet of counter-infiltration system connect with high pressure counter-infiltration system
Connect, the outlet of high pressure counter-infiltration system is connected to the reuse outlet of the counter-infiltration system；
The concentrated water spout of high pressure counter-infiltration system is connected to evaporation and crystallization system, the outlet connection of the evaporation and crystallization system
To the reuse outlet of the counter-infiltration system；
The solid crystal thing being connected with solid recovery unit that is provided with of the evaporation and crystallization system is exported.
The present invention also provides a kind of high concentrated organic wastewater Zero discharge treatment method, using processing system of the present invention
System, comprises the following steps：
Waste water sequentially enter pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system of the processing system according to
It is secondary to carry out pretreatment, hyperfiltration treatment, nanofiltration process and reverse-osmosis treated, the effluent reuse after reverse-osmosis treated；
The concentrated water of the nanofiltration process and reverse-osmosis treated carries out height into the high pressure counter-infiltration system of the processing system
Pressure reverse-osmosis treated, the water outlet after high pressure reverse-osmosis treated is evaporated crystallization treatment into evaporation and crystallization system, generation it is cold
Solidifying water effluent reuse, the solid crystal beyond the region of objective existence fortune of generation is disposed.
Beneficial effects of the present invention are：By pretreatment system, ultrafiltration system, nanofiltration system, counter-infiltration system, high pressure reverse osmosis
Permeable system and evaporation and crystallization system organic assembling form that a kind of to realize that pretreatment, multistage membrane filtration and evaporative crystallization are combined right
The system that waste water is processed, film filter compact conformation, floor space is about taken up an area compared with trifle, and investment cost is low.Automatization
Degree is high, and operation operation is easy, can effectively realize processed waste water zero-emission.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the zero-discharge treatment system schematic diagram of high concentrated organic wastewater provided in an embodiment of the present invention；
In figure：1- regulating reservoirs, 2- sand filters, 3- active carbon filters, 4- ultrafiltration systems, 5- nanofiltration systems, 6- reverse osmosiss
System, 7- high pressure reverse osmosis units, 8- evaporation and crystallization systems, the outlet of the concentrated water of 9- counter-infiltration systems, 10- evaporation and crystallization systems
The concentrated water outlet of outlet, 11- nanofiltration systems.
Specific embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than the embodiment of whole.Based on embodiments of the invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to protection scope of the present invention.
As shown in figure 1, the embodiment of the present invention provides a kind of high concentrated organic wastewater zero-discharge treatment system, the system bag
Include：
Pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system being sequentially connected；Pretreatment system is provided with waste water
Water inlet；
Counter-infiltration system is provided with reuse outlet；
The concentrated water outlet of nanofiltration system and the concentrated water outlet of counter-infiltration system are connected with high pressure counter-infiltration system, high
The outlet of pressure counter-infiltration system is connected to the reuse outlet of the counter-infiltration system；
The concentrated water spout of high pressure counter-infiltration system is connected to evaporation and crystallization system, the outlet connection of the evaporation and crystallization system
To the reuse outlet of the counter-infiltration system；
The solid crystal thing being connected with solid recovery unit that is provided with of evaporation and crystallization system is exported.
In above-mentioned processing system, pretreatment system includes：Regulating reservoir, sand filter and the active carbon filter being sequentially connected；
Water intake is set on regulating reservoir.Wherein, sand filter is using internal filling quartz sand and anthracitic pressure sand filter；It is living
Property carbon filter using internal filling bulky grain activated carbon pressure type active carbon filter.During pretreatment system process, can be to
Dosing coagulant and flocculant in waste water, by quartz sand, the retention adsorption of activated carbon, go most suspension in eliminating water
The materials such as thing, colloid.
In above-mentioned processing system, ultrafiltration system includes：40 microns of cartridge filters, ultrafiltration apparatus and ultrafiltration being sequentially connected
Is produced from pond, the ultrafiltration product water elevator pump that connection nanofiltration system is provided with pond is produced in ultrafiltration.In 40 microns of cartridge filters and ultrafiltration
In the presence of device, further the impurity such as float, colloid in removal water body, protects the operation of subsequent film equipment safety.Wherein,
Ultrafiltration apparatus can be provided with cleaning device when carrying out hyperfiltration treatment using cross flow filter, the ultrafiltration apparatus, at interval of 0.5 hour to super
Filter device carries out a backwash.
Nanofiltration system includes：Is produced from pond in 5 μm of cartridge filters, the first high-pressure pump and the nanofiltration being sequentially connected, and water is produced in nanofiltration
Water elevator pump is produced in the nanofiltration that connection counter-infiltration system is provided with pond；Can remove by the nanofiltration device of the nanofiltration system big absolutely in water
Part soluble organic fraction, colloid, Organic substance and microorganism, the response rate is 80%～85%, and bivalence and high price salt salt rejection rate are
More than 90%.
Counter-infiltration system includes：5 μm of cartridge filters being sequentially connected, the second high-pressure pump and reverse osmosis unit.By anti-
Permeability apparatus main further organics removal, salinity etc., the response rate is 80%～85%.
In above-mentioned processing system, ultrafiltration apparatus adopt external pressure type ultra-filtration membrane, the filtration a diameter of 0.01 of external pressure type ultra-filtration membrane
～0.1 μm, membrane flux is 30～50l/ (m2H), ultrafilter membrane bears pressure for 0.05～0.2MPa；
Nanofiltration device adopts antipollution NF membrane, and the membrane material of NF membrane is polyamide composite film, and width of flow path is 28～
40mil, NF membrane bears pressure for 0.1～2.0MPa；
Reverse osmosis unit adopts anti-pollution reverse osmosis membrane, and the membrane material of reverse osmosis membrane is polyamide composite film, width of flow path
For 28～40mil, it is 0.1～2.0MPa that reverse osmosis membrane bears pressure.
In above-mentioned processing system, high pressure counter-infiltration system includes：The 3rd high-pressure pump being sequentially connected and high pressure reverse osmosiss are filled
Put.The high pressure reverse osmosis unit adopt dish tubular membrane component, membrane flux be 15～30l/ (m2h), the maximum pressure that film bears
For 12MPa, single looped cycle flow ratio is 50%～100%.The high pressure reverse osmosis unit adopts disc-type membrane module, goes out
Water stably reaching standard, is not affected by influent quality.
In above-mentioned processing system, evaporation process subsystem includes：The intake pump that is sequentially connected, adjust tank, evaporation head tank,
Feed pump, plate type heat exchanger, oxygen-eliminating device and vaporizer saline slot；Vaporizer saline slot Jing circulating pump connects with vaporizer spill box
Connect；Plate type heat exchanger and oxygen-eliminating device are each provided in evaporator shell body, and vaporizer saline slot is located at evaporator shell bottom, vaporizer
Spill box is located at vaporizer top, and spill box is exported corresponding to plate type heat exchanger；Mechanical Vapor Compression connects with evaporator shell
It is logical；
Crystallization treatment subsystem includes：The intake pump being sequentially connected, the crystallization head tank with agitator, crystallization charging
Pump, crystallisation cycle pump, crystallization heater and crystallizer；Crystallizer is provided with condenser, and the evaporative distillation liquid of crystallizer is exported and cold
The outlet of condenser is connected with the plate type heat exchanger of evaporation process subsystem.
In above-mentioned processing system, ultrafiltration, nanofiltration, counter-infiltration system are steady as power, equipment operation is separated using pressure
It is fixed reliable, high degree of automation, and nanofiltration system, counter-infiltration system, using multisection type design, the response rate is high.And evaporative crystallization
Evaporation technology fully utilize falling film evaporation, liquid cloth film and mechanical vapor-compression (MVC) technology, crystallization processes are employed by force
System circulation flash crystallization, efficient heat transfer and salt-mixture crystallization technique, it is stable, really realize wastewater zero discharge.
The embodiment of the present invention also provides a kind of high concentrated organic wastewater Zero discharge treatment method, using the processing system of the present invention
System, comprises the following steps：
Waste water sequentially enters pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system of processing system and enters successively
Row pretreatment, hyperfiltration treatment, nanofiltration process and reverse-osmosis treated, the effluent reuse after reverse-osmosis treated；
The concentrated water of nanofiltration process and reverse-osmosis treated enters horizontal high voltage reverse osmosiss into the high pressure counter-infiltration system of processing system
Process, the effluent reuse after high pressure reverse-osmosis treated；
Concentrated water after high pressure reverse-osmosis treated is evaporated crystallization treatment into evaporation and crystallization system, and the condensed water of generation goes out
Water circulation, the solid crystal beyond the region of objective existence fortune of generation is disposed.
In above-mentioned processing method, pretreatment includes：Waste water sequentially enters regulating reservoir, sand filter, the activity of pretreatment system
Carbon filter and the first cartridge filter carry out multistage filtering after being adjusted；
In evaporative crystallization process：Evaporation technology fully utilizes falling film evaporation, liquid cloth film and machinery using evaporation technology
Both vapor compression；Crystallization processes are crystallized using forced circulation flash crystallization with efficient heat transfer and salt-mixture.
With reference to specific embodiment, the invention will be further described.
Referring to the drawings 1, the process that the present invention processes waste water is as follows：
First high concentrated organic wastewater is introduced into regulating reservoir Jing pumps and is promoted to sand filter, active carbon filter, activated carbon mistake
Filter discharges water to intermediate pool；
The water Jing pumps of intermediate pool are promoted to 40 microns of cartridge filters, self-cleaning filter, the ultrafiltration dress of ultrafiltration system
Put (be provided with cleaning device), further the impurity such as float, colloid in removal water body, the equipment safety operation of protection subsequent film；
Ultrafilter membrane adopts external-compression type, ultrafilter membrane to adopt cross flow filter, and 10%～50%, control operating pressure is 0.05 for wrong flow-control
～0.2MPa, ultrafiltration apparatuss carried out a backwash at interval of 0.5 hour.
The nanofiltration device that water enters nanofiltration system by booster pump is produced in ultrafiltration, and nanofiltration device is designed using three-stage, per section
Effusion meter and pressure gauge are respectively provided with, and inter-section booster, circulating pump are set.The control response rate is 80%～85%.Nanofiltration device
Start is set, auto-flushing is shut down, and was got express developed once per 2 hours.
Nanofiltration is produced water Jing pumps and lifts 5 μm of cartridge filters for delivering to counter-infiltration system, then delivers to reverse osmosis by high-pressure pump pressurization
Saturating device, reverse osmosiss are designed using three-stage, and per section is respectively provided with effusion meter and pressure gauge, and arranges inter-section booster, circulating pump.
The control response rate is 80%～85%.Start is set, auto-flushing is shut down, and was got express developed once per 2 hours.
The product water of reverse osmosiss enters reuse pool, and it is anti-that high pressure is delivered in nanofiltration concentrated water and the pressurization of reverse osmosis concentrated water Jing high-pressure pumps
Osmosis system, the high pressure reverse osmosis unit of the high pressure counter-infiltration system adopts dish tubular membrane component, and membrane flux is 15～30l/
(m2h) maximum pressure that, film bears is 12MPa, and single looped cycle flow ratio is 50%～100%.
The product water of high pressure counter-infiltration system enters reuse pool, and the concentrated water Jing pump of high pressure reverse osmosiss is lifted delivers to evaporative crystallization
Device, strong brine is pumped to after concentrating salt-containing waste water adjusts tank buffering Jing conveying and enters evaporation head tank, and Jing adds in head tank
Medicine is pumped into plate type heat exchanger after adjusting by charging, exchanges heat to the close boiling point of temperature and sends into oxygen-eliminating device.Jing dosings, preheating and
Strong brine after deoxygenation enters vaporizer saline slot, and is mixed with circulating brine.Circulating brine is from base of evaporator with following
Ring is pumped to vaporizer top spill box, is vaporized by the steam heating part of shell-side in heat exchanger tube, completes falling film evaporation process.
The process steam that evaporation process is produced enters evaporator shell side Jing after Mechanical Vapor Compression increasing temperature and pressure improves steam quality, makees
For the thermal source of vapo(u)rization system.Reuse is seen off after the product water of steam condensation and feed liquid heat exchange.
The high strong brine that vapo(u)rization system is discharged enters the crystallization head tank with agitator, and by crystallization feed pump knot is delivered to
At brilliant circulating-pump outlet, mixed with crystallizer circulation slurry, into crystallization heater, send into crystallizer after heating and dodge
Steam.The steam that flash distillation is produced is condensed by the condenser cooling and mixes feeding plate type heat exchanger heating feed liquid with evaporative distillation liquid, most
After see reuse off.The dense salt slurry that crystal system is produced isolates solid slag through centrifugal dehydrator, delivers to slag field and does into one
Step process.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (9)
1. a kind of high concentrated organic wastewater zero-discharge treatment system, it is characterised in that the system includes：
Pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system being sequentially connected；The pretreatment system is provided with waste water
Water inlet；
The pretreatment system includes：Regulating reservoir, sand filter, active carbon filter and the first cartridge filter being sequentially connected；
The water intake is set on the regulating reservoir；
The counter-infiltration system is provided with reuse outlet；
The concentrated water outlet of the nanofiltration system and the concentrated water outlet of counter-infiltration system are connected with high pressure counter-infiltration system, high
The outlet of pressure counter-infiltration system is connected to the reuse outlet of the counter-infiltration system；The nanofiltration system includes：Connect successively
Is produced from pond in 5 μm of cartridge filters, the first high-pressure pump and the nanofiltration for connecing, and the nanofiltration is produced and the connection reverse osmosiss system is provided with pond
Water elevator pump is produced in the nanofiltration of system；
The concentrated water spout of high pressure counter-infiltration system is connected to evaporation and crystallization system, and the outlet of the evaporation and crystallization system is connected to institute
State the reuse outlet of counter-infiltration system；
The evaporation and crystallization system is provided with the solid crystal thing outlet being connected with solid recovery unit.
2. a kind of high concentrated organic wastewater zero-discharge treatment system according to claim 1, it is characterised in that the sand filtration
Device is using internal filling quartz sand and anthracitic pressure sand filter；
Active carbon filter is using the internal pressure type active carbon filter for loading bulky grain activated carbon；
First cartridge filter adopts 40 microns of cartridge filters.
3. a kind of high concentrated organic wastewater zero-discharge treatment system according to any one of claim 1 to 2, its feature exists
In the ultrafiltration system includes：Is produced from pond in 40 μm of cartridge filters, ultrafiltration apparatus and the ultrafiltration being sequentially connected, and the ultrafiltration is produced
The ultrafiltration product water elevator pump for connecting the nanofiltration system is provided with pond；
The counter-infiltration system includes：5 μm of cartridge filters being sequentially connected, the second high-pressure pump and reverse osmosis unit.
4. a kind of high concentrated organic wastewater zero-discharge treatment system according to claim 3, it is characterised in that the ultrafiltration
Device adopts external pressure type ultra-filtration membrane, and the filtration of external pressure type ultra-filtration membrane is a diameter of 0.01～0.1 μm, membrane flux be 30～50L/
(m2H), ultrafilter membrane bears pressure for 0.05～0.2MPa；
The nanofiltration device adopts antipollution NF membrane, and the membrane material of NF membrane is polyamide composite film, and width of flow path is 28～
40mil, NF membrane bears pressure for 0.1～2.0MPa；
The reverse osmosis unit adopts anti-pollution reverse osmosis membrane, and the membrane material of reverse osmosis membrane is polyamide composite film, width of flow path
For 28～40mil, it is 0.1～2.0MPa that reverse osmosis membrane bears pressure.
5. a kind of high concentrated organic wastewater zero-discharge treatment system according to any one of claim 1 to 2, its feature exists
In the high pressure counter-infiltration system includes：The 3rd high-pressure pump being sequentially connected and high pressure reverse osmosis unit.
6. a kind of high concentrated organic wastewater zero-discharge treatment system according to claim 5, it is characterised in that the high pressure
Reverse osmosis unit adopts dish tubular membrane component, and membrane flux is 15～30L/(m2H), the maximum pressure that film bears is 12MPa,
Single looped cycle flow ratio is 50%～100%.
7. a kind of high concentrated organic wastewater zero-discharge treatment system according to any one of claim 1 to 2, its feature exists
In the evaporation and crystallization system is made up of the evaporation process subsystem, crystallization treatment subsystem and centrifugal dehydrator that are sequentially connected；
The evaporation process subsystem includes：Intake pump, regulation tank, evaporation head tank, feed pump, the plate-type heat-exchange being sequentially connected
Device, oxygen-eliminating device and vaporizer saline slot；The vaporizer saline slot Jing circulating pump is connected with vaporizer spill box；It is described board-like to change
Hot device and oxygen-eliminating device are each provided in evaporator shell body, and the vaporizer saline slot is located at the evaporator shell bottom, the steaming
Send out device spill box and be located at the vaporizer top, the spill box is exported corresponding to the plate type heat exchanger；Mechanical vapor-compression
Machine is connected with the evaporator shell；
The crystallization treatment subsystem includes：The intake pump being sequentially connected, the crystallization head tank with agitator, crystallization charging
Pump, crystallisation cycle pump, crystallization heater and crystallizer；The crystallizer is provided with condenser, the evaporative distillation liquid of the crystallizer
The outlet of outlet and condenser is connected with the plate type heat exchanger of the evaporation process subsystem.
8. a kind of high concentrated organic wastewater Zero discharge treatment method, it is characterised in that using described in any one of claim 1 to 7
Processing system, comprise the following steps：
Waste water sequentially enters pretreatment system, ultrafiltration system, nanofiltration system and the counter-infiltration system of the processing system and enters successively
Row pretreatment, hyperfiltration treatment, nanofiltration process and reverse-osmosis treated, the effluent reuse after reverse-osmosis treated；
It is anti-that the concentrated water of the nanofiltration process and reverse-osmosis treated enters horizontal high voltage into the high pressure counter-infiltration system of the processing system
Infiltration is processed, the effluent reuse after high pressure reverse-osmosis treated；
Concentrated water after high pressure reverse-osmosis treated is evaporated crystallization treatment into evaporation and crystallization system, and the condensed water water outlet of generation is returned
With the solid crystal beyond the region of objective existence fortune of generation is disposed.
9. a kind of high concentrated organic wastewater Zero discharge treatment method according to claim 8, the pretreatment includes：
Waste water sequentially enters regulating reservoir, sand filter, active carbon filter and first cartridge filter of pretreatment system and is adjusted
Multistage filtering is carried out after section；
The evaporative crystallization is processed as：Forced circulation flash crystallization and/or efficient heat transfer and salt-mixture crystallization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822104.0A CN104529035B (en) | 2014-12-24 | 2014-12-24 | High-concentration organic wastewater zero-discharge treatment system and method |
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| CN106044948A (en) * | 2016-05-27 | 2016-10-26 | 北京能泰高科环保技术股份有限公司 | Device and method for treating reverse osmosis strong brine by aid of nano-filtration membrane and reverse osmosis membrane combinations |
| CN106630275A (en) * | 2016-12-09 | 2017-05-10 | 宜兴市苏嘉环保设备有限公司 | Zero-discharge treatment process for pickling passivation wastewater |
| CN106830505A (en) * | 2017-01-23 | 2017-06-13 | 同舟纵横（厦门）流体技术有限公司 | A kind of VB12 Wastewater zero-discharge treatment systems and handling process |
| CN106823724A (en) * | 2017-02-21 | 2017-06-13 | 浙江大维高新技术股份有限公司 | A kind of flue gas integrated purification system for realizing wastewater zero discharge |
| CN107381920A (en) * | 2017-08-25 | 2017-11-24 | 苏州赛比膜分离科技有限公司 | A kind of filter membrane treatment device of high slat-containing wastewater |
| CN110342724A (en) * | 2019-08-14 | 2019-10-18 | 安徽科博瑞环境科技有限公司 | A kind of high-concentration industrial organic waste water zero-discharge treatment system and its technique |
| CN111517547A (en) * | 2020-04-08 | 2020-08-11 | 广州高澜节能技术股份有限公司 | Converter valve cooling tower wastewater treatment system and treatment process |
| CN111362496A (en) * | 2020-04-17 | 2020-07-03 | 莱特莱德（北京）环境技术股份有限公司 | Low-energy-consumption membrane-method antibiotic pharmaceutical wastewater recycling system and treatment process thereof |
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| CN100515957C (en) * | 2005-10-12 | 2009-07-22 | 王凌云 | Waste liquid treating method and treating system thereof |
| JP2008229418A (en) * | 2007-03-16 | 2008-10-02 | Kurita Water Ind Ltd | Method and apparatus for industrial water treatment |
| US8647509B2 (en) * | 2010-06-15 | 2014-02-11 | General Electric Company | Seawater desalination plant and production of high purity salt |
| CN201770570U (en) * | 2010-07-22 | 2011-03-23 | 上海西恩化工设备有限公司 | Treatment system for waste water containing high-concentration ammonium salt and sodium salt |
| CN201864630U (en) * | 2010-09-28 | 2011-06-15 | 上海立昌环境工程有限公司 | Zero-discharge device for treating printing and dyeing wastewater |
| CN102167477B (en) * | 2011-03-17 | 2012-07-04 | 开滦（集团）有限责任公司 | Recycle system and recycle method of coked wastewater |
| CN103130348B (en) * | 2011-11-23 | 2014-11-19 | 合肥信达膜科技有限公司 | Whole membrane treatment method of electroplating chromeplating waste water |
| CN102897944A (en) * | 2012-07-30 | 2013-01-30 | 北京伊普国际水务有限公司 | System for deeply processing difficultly degradable organic waste water |
| CN202881008U (en) * | 2012-10-11 | 2013-04-17 | 浙江工商大学 | Emergency treatment system for organic pollutant pollution of drinking water |
| CN102942281B (en) * | 2012-11-22 | 2015-03-11 | 南阳理工学院 | Treatment method of high-concentration mixing organic acid waste water |
| CN104150721B (en) * | 2014-08-29 | 2015-09-30 | 北京赛科康仑环保科技有限公司 | A kind of recycling processing method for foodstuff pickling waste water |
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