CN203373230U - Integrated recycle and zero emission equipment of high-salinity complex wastewater - Google Patents
Integrated recycle and zero emission equipment of high-salinity complex wastewater Download PDFInfo
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- CN203373230U CN203373230U CN201320423220.6U CN201320423220U CN203373230U CN 203373230 U CN203373230 U CN 203373230U CN 201320423220 U CN201320423220 U CN 201320423220U CN 203373230 U CN203373230 U CN 203373230U
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Abstract
The utility model relates to integrated recycle and zero emission equipment of high-salinity complex wastewater. The equipment comprises a pretreatment system, a recycle and reduction system and a zero emission system, wherein the pretreatment system comprises a regulating pool, the regulating pool is connected with a coagulation reaction pool through a lift pump, the coagulation reaction pool is connected with an immersed microfiltration pool, the immersed microfiltration pool is connected with the recycle and reduction system, and the bottom of the immersed microfiltration pool is connected with a sludge pool; the recycle and reduction system comprises an intermediate pool connected with the immersed microfiltration pool, the intermediate pool is connected with a medium-pressure concentration membrane device through a booster pump and a security filter, the medium-pressure concentration membrane device is connected with a medium-pressure concentrated water pool, the medium-pressure concentrated water pool is connected with a high-pressure concentration membrane device through a booster pump and a security filter, the high-pressure concentration membrane device is connected with an ultrahigh-pressure concentration membrane device through an inter-segment booster pump, and the ultrahigh-pressure concentration membrane device is connected with the zero emission system through a concentrated salt water tank. The integrated recycle and zero emission equipment provided by the utility model can be used for recycling more than 95% of reverse osmosis concentrated water or similar high-salinity complex wastewater and reducing the recycle and emission cost.
Description
Technical field
The utility model relates to the comprehensive treatment equipment of the complicated waste water of a kind of high salt, is a kind of for industrial reverse osmosis concentrated water and supersalinity, the reuse of the complicated waste water of high organic content and the multiplexing device integrated system of zero release.
Background technology
The problems such as the waste water produced in the Industrial processes such as electric power, metallurgy, oil refining, Coal Chemical Industry in recent years, and Industrial Recirculating Cooling Water more and more come into one's own.Along with improving constantly of water resources cost, and the national increasing of enterprise's sewage discharge being controlled to dynamics, sewage reuse techuique has obtained universal widely.In this process, reverse osmosis membrane technology (RO) has become the important means in industrial cycle water treatment, waste water recycling and sea water desaltination field gradually.
But adopt reverse osmosis technology still to have two problems: the one, the equipment with high desalinization of reverse osmosis technology, the ratio of desalinization level that generally reverse osmosis unit can be stable is more than 98%, and the salinity more than 98% enters in reverse osmosis concentrated water; The 2nd, the water recovery utilization rate is low, generally can only reach 70%-80%, still has 20%-30% left and right concentrated water discharge, and quantity discharged is large, has caused the huge waste of water resources.Simultaneously; contain a large amount of solvability salts in the complicated waste water of the high salt produced; comprising a large amount of calcium, magnesium scale ion; heavy metal ion; silicon ion and other salt, and usually also can contain a large amount of not organic pollutants of bio-degradable, current treatment process is all after adopting simple process; directly discharge, caused serious impact to surface water environment.
At present, processing for reverse osmosis concentrated water and the complicated waste water of similar high salt, mainly contain following several scheme: first, adopt the strong oxidizing substance such as ozone, dioxide peroxide, Fenton reagent to carry out catalyzed oxidation, then enter the removal of biochemical unit or part and remove the organism in waste water, then directly discharge through precipitation or after filtering; The second, by haline water, by ion-exchange or add the precipitation that medicament is controlled calcium ions and magnesium ions, by secondary counter permeator recovery part water resources, the dense water again produced directly discharges; The 3rd, dense water is evaporated and crystallization, realize real zero release.
The above three kinds of schemes of analysis-by-synthesis, the first scheme is only processed for the organism in waste water, yet, general sewage disposal is all the biochemical treatment through very long flow process, and institute's remaining part is divided the biodegradability of organic matter extreme difference, even can be not biochemical, therefore, depending merely on chemical catalytic oxidation is very limited to the removal effect of this part, most importantly the high salt component of waste water be there is no to removal effect, and the salt branch of high density reduces biochemical operating performance; Although there is its reasonableness theoretically in first scheme, yet, reverse osmosis concentrated water is former water have been carried out at least 4 times of high slat-containing wastewaters after concentrated, all scale-forming ions such as calcium magnesium, heavy metal ion, silicon ion etc., and can not biochemical organism etc. pollutant concentration very high, therefore, common reverse osmosis membrane is extremely low to the rate of recovery of this waste water, even the sea water desaltination film also can only accomplish 40～55%, and the remaining dense water yield is still larger; The third scheme, to high-salt wastewater, process the most thoroughly, technology is also the most ripe relatively, shortcoming is that processing cost is too high, needs a large amount of steam in process, and average ton cost of water treatment is more than dozens of yuan, can't be processed for the big yield haline water, and the evaporative crystallization conversion unit is had relatively high expectations to material, cause one-time investment too large.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and the complicated waste water recycling of a kind of high salt and zero release integrated equipment are provided, and solves the above problem existed in prior art.
The technical scheme that the utility model is taked is:
The complicated waste water recycling of high salt and zero release integrated equipment, comprise pretreatment system, reuse and minimizing system, Zero discharging system, pretreatment system comprises equalizing tank, equalizing tank connects coagulation reaction tank by lift pump, coagulation reaction tank connects the immersed microfiltration pond, the top in immersed microfiltration pond is connected with the minimizing system with reuse, and bottom is connected with sludge sump; Described reuse comprises with the minimizing system intermediate pool be connected with the immersed microfiltration pond, intermediate pool is connected with the concentrated film device of middle pressure by topping-up pump, security personnel's filter, during connecting, the concentrated film device of middle pressure presses dense pond, the dense pond of middle pressure is connected with the concentrated film device of high pressure by topping-up pump, security personnel's filter, the concentrated film device of high pressure is connected by the concentrated film device of intersegmental topping-up pump and ultra-high voltage, and the concentrated film device of ultra-high voltage is connected with Zero discharging system by concentrated salt water tank; Zero discharging system comprises and the enhancing atomization and vaporization machine, the evaporated crystallization device that concentrate salt water tank and be connected, strengthens the atomization and vaporization machine and communicates with evaporation pond, and evaporation pond connects dry salt disposal plant, and evaporated crystallization device passes through the salt slurry dewatering unit and is connected with dry salt treatment unit.
Be equipped with chemicals dosing plant on described coagulation reaction tank, the concentrated film device of middle pressure, the concentrated film device of high pressure, the concentrated film device of ultra-high voltage.
Described middle pressure concentrates the concentrated film device of film device, high pressure, the concentrated film device of ultra-high voltage, evaporated crystallization device and all is connected with the reuse water tank.Described concentrated film is special membrane, and diaphragm is high pressure resistant, according to different concentration, and withstand voltage 50bar/80bar/160bar; Anti-high pollution, form difference according to COD, may be up to hundreds of, thousands of or tens thousand of ppm.
The pretreatment system part, by equalizing tank, the complicated waste water of high salt is carried out to homogeneous and all measures, by lift pump, former water is delivered to coagulation reaction tank, add successively lime or sodium hydroxide at this from chemicals dosing plant, sodium carbonate, PAC, PAM, mixing liquid enters the immersed microfiltration pond, under the natural subsidence effect, supernatant liquor enters intermediate pool after collecting by the immersed microfiltration pipe, chemical sludge enters sludge sump by gravity settling from bottom, enter device for dehydrating sladge waste and carry out mud-water separation after the mud adjustment, the dewatered sludge become after mud cake finally carries out the dewatered sludge disposal.Remove the hardness and easy scale-forming ion and part COD in water after pre-treatment after, through intermediate pool, collect, utilize topping-up pump to promote feed pressure successively by security personnel's filter, the concentrated film device of middle pressure, the concentrated film device of middle pressure adopts press mold element GTR3-8040F-65(width of flow path 65mil in extraordinary concentrated antipollution), approximately the above product water of 70% former water enters the reuse water tank, and approximately the reverse osmosis dope of 30% former water enters the dense pond of middle pressure.The dense pond of middle pressure promotes the water inlet of dense water as the concentrated film device of high pressure by topping-up pump, before the concentrated film device of high pressure, security personnel's filter is set, extraordinary concentrated antipollution high-pressure membrane element GTR4-8040F-80(width of flow path 80mil for the concentrated film device of high pressure), approximately the above product water of 65% water inlet enters the reuse water tank, approximately the reverse osmosis concentrated water of 35% water inlet concentrates the water inlet of film device as follow-up ultra-high voltage after by intersegmental topping-up pump supercharging, the concentrated film of ultra-high voltage adopts ultra-high voltage DTRO dish tubular membrane element 7W101500(width of flow path 6mm), approximately the above product water of 55% water inlet enters the reuse water tank, approximately the reverse osmosis concentrated water of 45% water inlet enters concentrated salt water tank.By the reuse of this device and minimizing part, approximately recyclable 95% above high-quality de-salted water is back to production equipment, and the concentrated salt solution lower than 5% after final concentrating carries out zero discharge treatment.The zero release part, move respectively according to the weather condition in winter and summer, reduces working cost.In the winter time, by the dehydration of mature technology multiple-effect evaporation crystallization apparatus and salt slurry, by the concentrated saline water conversion of insufficient total amount 5% former water, be distilled water and solid salt, distilled water returns to the reuse water tank, solid salt and then carry out dry salt disposal; In summer, take full advantage of the facility of natural condition, by strengthening the atomization and vaporization machine, to concentrate the salt water atomization and dispel in the air, utilize natural lighting and wind force intensified evaporation effect, this equipment evaporates 14～35 times of reinforced effects than traditional natural, but need be used in combination with evaporation pond, the dry salt be scattered, after collecting, carries out dry salt disposal.The utility model can re-use reverse osmosis concentrated water or the complicated waste water reclamation of similar high salt more than 95%, only stay the high strong brine of 5% left and right to enter evaporative crystallization, or enter the spontaneous evaporation pool, fully the recycle water resources, reduce the reuse of the complicated waste water of high salt and the cost of zero release.
Ultimate principle of the present utility model is as follows:
1, the utility model adopts chemical process that the hardness ionses such as heavy metal ion, calcium magnesium were removed before entering dense water reverse osmosis, partly COD, organic colloidal matter are reduced to concentration by the effect of coagulation, absorption simultaneously, and then enter reverse osmosis system, like this, the tendency of heavy metal contamination and calcium magnesium scale has just been avoided on the reverse osmosis membrane surface;
2, the utility model adopts the immersed microfiltration device as the feed water by reverse osmosis pre-filtration units, the PE micro-filtrate that is the 1-5 micron by aperture, chemical precipitation, coagulation colloidalmaterial etc. is further removed, the leading portion pre-treatment is reached and meet the SDI index that follow-up RO is intake, reduced again follow-up RO has been produced to dirty stifled organic and inorganic material simultaneously, whole system more is tending towards rationally, and the assurance system is long-term, stable, reliability service.
3, the complicated wastewater source of general high salt is reverse osmosis concentrated water, for the waste water after concentrated 4 times of former water, it can not the biochemical COD reduced and easily the silicon ion of fouling is all higher, after the utility model equipment reconcentration 10-20 times, its concentration will be larger, more easily in the reverse osmosis concentrated water side, form organic contamination and silicon fouling, in the utility model technology, pass through coagulation at preprocessing part, adsorption can partly reduce COD and silicon ion, simultaneously, keep the water inlet pH value of reverse osmosis at 8.0-11.0, the tendency that has also suppressed the fouling of film surface silicon and organic contamination under alkaline condition.
4, the concentrated film device of the middle pressure in the utility model to adopt width of flow path be the about 1.65mm of 65mil() the concentrated antipollution of special type in the press mold element, it is the about 2.03mm of 80mil(that the concentrated film device of high pressure adopts width of flow path) the concentrated antipollution high-pressure membrane element of special type, the concentrated film device of ultra-high voltage adopts the DTRO ultra-high voltage membrane element that width of flow path is 6mm.The about 0.86mm of the maximum width of flow path 34mil(of membrane element with traditional antipollution high flow capacity) compare, middle and high, ultra-high voltage membrane element that the utility model adopts have the characteristics of super large runner, special runner and structure design, make concentrated film system more difficult generation ion fouling and organic dirt stifled.
5, the utility model for the complicated waste water of high saliferous generally from the reverse osmosis concentrated water of concentrated 4 times or the factory effluent of other supersalinity, its saltiness is generally between 4000-7000mg/L, look winter and summer running condition by this apparatus system, the system recoveries rate can be reached to 95-99.5%.
For the technique effect that clearer expression the utility model reaches, the index of intaking and effluent index are tabulated.
The utility model integrated equipment possess skills maturation, the characteristics such as construction investment is low, working cost is few, operational administrative is simple, system run all right is reliable, small accommodation area, reclaim product water water quality good, can be used for circulating water system or Desultwater Station make up water.Be applicable to the reverse osmosis concentrated water that produces in the Industrial processes such as electric power, metallurgy, oil refining, Coal Chemical Industry and the processing of Industrial Recirculating Cooling Water, except reclaiming high-quality water, can realize zero release truly, that enterprise affords to use, can introduce the enterprise that needs to consume great lot of water resources for the comparatively nervous area (as Xinjiang, Inner Mongol, Ningxia, Shaanxi, Shanxi etc.) of water resources, start the new road of a water resources recycle.
The utility model integrated equipment has changed in the prior art and directly the complicated waste water of the contour salt of reverse osmosis concentrated water has directly been carried out to the technique of evaporation concentration, creatively utilize the concentrated film of new special antipollution high pressure to carry out further minimizing to the complicated waste water of high salt, on dense water after 4 times of common reverse osmosis concentration and the haline water basis of peer-level saltiness, again concentrate decrement, after the utility model equipment, recyclable 95% above high-quality water, make the final concentrated liquid of haline water only have 5% left and right of water inlet.So just, greatly reduce the water yield that enters the evaporative crystallization part, just construction investment significantly reduces, and working cost reduces more than 4 times.The 95% above high-quality water that the utility model integrated equipment reclaims can be back to the purposes such as recirculated water, greening, reduces the fresh water consumption, and 5% concentrated liquid enters evaporative crystallization, has reduced the scale of investment of evaporated crystallization device, has reduced the consumption of steam equal energy source.Therefore, from the engineering construction investment to the operation and maintenance cost, all obtained absolute reduction.
The accompanying drawing explanation
Fig. 1 is the complicated waste water recycling of the high salt of the utility model and zero release integrated equipment structure iron;
1. high slat-containing wastewaters wherein, 2. equalizing tank, 3. lift pump, 4. coagulation reaction tank, 5. immersed microfiltration pond, 6. sludge sump, 7. device for dehydrating sladge waste, 8. dewatered sludge is processed, 9. intermediate pool, 10. topping-up pump, 11. security personnel's filter, 12. middle pressure concentrates film device, 13. the dense pond of middle pressure, 14. topping-up pump, 15. security personnel's filter, 16. high pressure concentrates film device, 17. intersegmental topping-up pump, 18. ultra-high voltage concentrates film device, 19. concentrated salt water tank, 20. strengthen the atomization and vaporization machine, 21. evaporation pond, 22. evaporated crystallization device, 23. salt slurry dewatering unit, 24. dry salt disposal plant, 25. reuse water tank, 26. reuse water pump, 27. user, 28. chemicals dosing plant, 29. chemicals dosing plant.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further elaborated.
As shown in Figure 1, the complicated waste water recycling of high salt and zero release integrated equipment, comprise pretreatment system, reuse and minimizing system, Zero discharging system, pretreatment system comprises equalizing tank 2, equalizing tank 2 connects coagulation reaction tank 4 by lift pump 3, coagulation reaction tank 4 connects immersed microfiltration pond 5, and the top in immersed microfiltration pond 5 is connected with the minimizing system with reuse, and bottom is connected with sludge sump 6; Described reuse comprises with the minimizing system intermediate pool 9 be connected with immersed microfiltration pond 5, intermediate pool 9 is connected with the concentrated film device 12 of middle pressure by topping-up pump 10, security personnel's filter 11, during connecting, the concentrated film device 12 of middle pressure presses dense pond 13, the dense pond 13 of middle pressure is connected with the concentrated film device 16 of high pressure by topping-up pump 14, security personnel's filter 15, the concentrated film device 16 of high pressure is connected by the concentrated film device 18 of intersegmental topping-up pump 17 and ultra-high voltage, and the concentrated film device 18 of ultra-high voltage is connected with Zero discharging system by concentrated salt water tank 19; Zero discharging system comprises and the enhancing atomization and vaporization machine 20, the evaporated crystallization device 22 that concentrate salt water tank 19 and be connected, strengthening atomization and vaporization machine 20 communicates with evaporation pond 21, evaporation pond 21 connects dry salt disposal plant 24, and evaporated crystallization device 22 is connected with dry salt treatment unit 24 by salt slurry dewatering unit 23.
Be equipped with chemicals dosing plant on described coagulation reaction tank 4, the concentrated film device 12 of middle pressure, the concentrated film device 16 of high pressure, the concentrated film device 18 of ultra-high voltage.
Described middle pressure concentrates the concentrated film device 16 of film device 12, high pressure, the concentrated film device 18 of ultra-high voltage, evaporated crystallization device 22 and all is connected with reuse water tank 25.
Embodiment 1:
Apply this integrated equipment and process the complicated waste water of the high saliferous of Coal Chemical Industry, waste water is from reusing sewage reverse osmosis concentrated water and Desultwater Station reverse osmosis concentrated water.
At first, by equalizing tank, the complicated waste water of high salt carried out to homogeneous and all measures, by lift pump, former water being delivered to coagulation reaction tank, at this, from chemicals dosing plant, adding successively lime or sodium hydroxide, sodium carbonate, PAC, PAM.Sodium hydroxide is mixed with the influent density dosage of the solution of 20% concentration according to 1.5g/L, sodium carbonate is mixed with the influent density dosage of the solution of 15% concentration according to 3.2g/L, the solution that PAC is made into 20% concentration adds according to the concentration dosage of 30mg/L, the solution that PAM is made into 0.3% concentration adds according to the amount of 3mg/L, chemical feeding quantity is unsuitable excessive, should be adjusted according to each ionic concn changing conditions of water inlet, otherwise can cause film to pollute, be affected the work-ing life of film.
Mixing liquid enters the immersed microfiltration pond, the filter tank total hrt is 2.5h, under the natural subsidence effect, supernatant liquor enters intermediate pool after collecting by the immersed microfiltration pipe, chemical sludge enters sludge sump by gravity settling from bottom, enter device for dehydrating sladge waste 7 and carry out mud-water separation after the mud adjustment, the dewatered sludge become after mud cake finally carries out the dewatered sludge disposal.The immersed microfiltration film adopts certain domestic hydrophilic PTFE tube formula film, can process the high solid content material, and high density liquid stream, can control concentration polarization and dirt effectively, has extended the cycle that film cleans.And the advantage of the high chemical resistance of PTFE, can be used high alkali liquid directly to carry out soaking and washing.
It is the aromatic polyamide matrix material that the concentrated film device of middle pressure adopts membrane material, working pressure is 2.0-3.5Mpa, the rate of recovery is greater than 70%, can hold back 97.5% salts substances, the former water that can be 6500mg/L by average T DS is concentrated to TDS and is greater than 21600mg/L, and the dense water that accounts for total treatment capacity 30% enters into the concentrated film device of high pressure and carries out further desalination and concentration; The concentrated film device membrane material of high pressure is the aromatic polyamide matrix material, working pressure is 3.5-4.5Mpa, the rate of recovery is greater than 65%, can hold back the salts substances more than 97.2%, the former water that can be 21600mg/L by average T DS is concentrated to TDS and is greater than 51700mg/L, and the concentrated solution that accounts for total treatment capacity 10.5% enters into the concentrated film device of ultra-high voltage and carries out further desalination and concentration; The concentrated film device membrane material of ultra-high voltage is the aromatic polyamide matrix material, working pressure is 12.0-16.0Mpa, the rate of recovery is greater than 55%, can hold back the salts substances more than 96.2%, the former water that can be 51700mg/L by average T DS is concentrated to TDS and is greater than 105000mg/L, and the concentrated solution that accounts for total treatment capacity 4.7% enters follow-up zero release unit.
Highly enriched brackish water through pre-treatment+reverse osmosis enters evaporated crystallization device after heat exchanger heats, and the steam of generation is sent to condenser condenses and becomes pure water to deliver to the reuse water tank.Dewater through salt slurry from the salt slurry of crystallizer discharge, finally obtain solid salt and dispose as the dry salt of solid waste.When summer, concentrated salt solution can be discharged into evaporation pond, by strengthening the atomization and vaporization machine, utilizes the convenience that local illumination is good, atmospheric moisture is little, carries out enhanced water evaporation, and the running cost of zero release can obviously be descended.
Although above-mentioned, in conjunction with Fig. 1, embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. the complicated waste water recycling of high salt and zero release integrated equipment, it is characterized in that, comprise pretreatment system, reuse and minimizing system, Zero discharging system, pretreatment system comprises equalizing tank, equalizing tank connects coagulation reaction tank by lift pump, coagulation reaction tank connects the immersed microfiltration pond, and the top in immersed microfiltration pond is connected with the minimizing system with reuse, and bottom is connected with sludge sump; Described reuse comprises with the minimizing system intermediate pool be connected with the immersed microfiltration pond, intermediate pool is connected with the concentrated film device of middle pressure by topping-up pump, security personnel's filter, during connecting, the concentrated film device of middle pressure presses dense pond, the dense pond of middle pressure is connected with the concentrated film device of high pressure by topping-up pump, security personnel's filter, the concentrated film device of high pressure is connected by the concentrated film device of intersegmental topping-up pump and ultra-high voltage, and the concentrated film device of ultra-high voltage is connected with Zero discharging system by concentrated salt water tank; Zero discharging system comprises and the enhancing atomization and vaporization machine, the evaporated crystallization device that concentrate salt water tank and be connected, strengthens the atomization and vaporization machine and communicates with evaporation pond, and evaporation pond connects dry salt disposal plant, and evaporated crystallization device passes through the salt slurry dewatering unit and is connected with dry salt treatment unit.
2. the complicated waste water recycling of high salt according to claim 1 and zero release integrated equipment, is characterized in that, on described coagulation reaction tank, the concentrated film device of middle pressure, the concentrated film device of high pressure, the concentrated film device of ultra-high voltage, is equipped with chemicals dosing plant.
3. the complicated waste water recycling of high salt according to claim 1 and zero release integrated equipment, is characterized in that, described middle pressure concentrate film device, high pressure and concentrates that film device, ultra-high voltage concentrate film device, evaporated crystallization device all is connected with the reuse water tank.
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| CN201320423220.6U CN203373230U (en) | 2013-07-16 | 2013-07-16 | Integrated recycle and zero emission equipment of high-salinity complex wastewater |
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| CN201320423220.6U CN203373230U (en) | 2013-07-16 | 2013-07-16 | Integrated recycle and zero emission equipment of high-salinity complex wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319042A (en) * | 2013-07-16 | 2013-09-25 | 北京倍杰特国际环境技术有限公司 | High-salt complex wastewater reuse and zero discharge integrated equipment and technology |
| CN104355445A (en) * | 2014-11-04 | 2015-02-18 | 深圳能源资源综合开发有限公司 | Process and special device for purifying high-salt water in coal chemical industry |
| CN105084651A (en) * | 2015-07-28 | 2015-11-25 | 山西诺凯化工技术有限公司 | Purification treatment and pure-salt recovery process for strong-salt wastewater in coal chemical industry |
| CN105293805A (en) * | 2015-11-11 | 2016-02-03 | 光大环保技术研究院（深圳）有限公司 | High-salinity high-hardness waste water zero-discharge processing apparatus and method thereof |
| CN106892519A (en) * | 2017-04-28 | 2017-06-27 | 淄博格瑞水处理工程有限公司 | Mixed bed regenerates high-salinity wastewater zero-emission processing unit |
-
2013
- 2013-07-16 CN CN201320423220.6U patent/CN203373230U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319042A (en) * | 2013-07-16 | 2013-09-25 | 北京倍杰特国际环境技术有限公司 | High-salt complex wastewater reuse and zero discharge integrated equipment and technology |
| CN103319042B (en) * | 2013-07-16 | 2014-11-05 | 北京倍杰特国际环境技术有限公司 | High-salt complex wastewater reuse and zero discharge integrated equipment and technology |
| CN104355445A (en) * | 2014-11-04 | 2015-02-18 | 深圳能源资源综合开发有限公司 | Process and special device for purifying high-salt water in coal chemical industry |
| CN104355445B (en) * | 2014-11-04 | 2016-04-20 | 深圳能源资源综合开发有限公司 | A kind of Coal Chemical Industry haline water purification process technique and special purpose device |
| CN105084651A (en) * | 2015-07-28 | 2015-11-25 | 山西诺凯化工技术有限公司 | Purification treatment and pure-salt recovery process for strong-salt wastewater in coal chemical industry |
| CN105293805A (en) * | 2015-11-11 | 2016-02-03 | 光大环保技术研究院（深圳）有限公司 | High-salinity high-hardness waste water zero-discharge processing apparatus and method thereof |
| CN106892519A (en) * | 2017-04-28 | 2017-06-27 | 淄博格瑞水处理工程有限公司 | Mixed bed regenerates high-salinity wastewater zero-emission processing unit |
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Address after: 101102 Zhongguancun science and Technology Park, Tongzhou science and Technology Park, Tongzhou District Jinqiao Science and technology industrial base, King Sheng South Street, No. four, 2C, 15 Patentee after: BGT INTERNATIONAL ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 101102 Zhongguancun science and Technology Park, Tongzhou science and Technology Park, Tongzhou District Jinqiao Science and technology industrial base, King Sheng South Street, No. four, 2C, 15 Patentee before: BEIJING BGT INTERNATIONAL ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 101102 9th Floor, A8 Building, 20 Guangde Street, Jiugong Town, Daxing District, Beijing Patentee after: BESTTER GROUP Co.,Ltd. Address before: 101102 Beijing Tongzhou District Zhongguancun Science and Technology Park Tongzhou Park Jinqiao Science and Technology Industry Base No. 15 Jingsheng South Fourth Street 2C Patentee before: BGT INTERNATIONAL ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |