CN105621775A - Novel desulfurated wastewater zero-emission treatment device and method - Google Patents

Novel desulfurated wastewater zero-emission treatment device and method Download PDF

Info

Publication number
CN105621775A
CN105621775A CN201610081217.9A CN201610081217A CN105621775A CN 105621775 A CN105621775 A CN 105621775A CN 201610081217 A CN201610081217 A CN 201610081217A CN 105621775 A CN105621775 A CN 105621775A
Authority
CN
China
Prior art keywords
water
waste water
nanofiltration
deliming
wastewater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610081217.9A
Other languages
Chinese (zh)
Inventor
刘海洋
江澄宇
李叶红
夏爽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datang Environment Industry Group Co Ltd
Original Assignee
Datang Environment Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datang Environment Industry Group Co Ltd filed Critical Datang Environment Industry Group Co Ltd
Priority to CN201610081217.9A priority Critical patent/CN105621775A/en
Publication of CN105621775A publication Critical patent/CN105621775A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02Softening water by precipitation of the hardness

Abstract

The invention provides a novel desulfurated wastewater zero-emission treatment device which comprises a calcium and heavy metal removing tank, a coagulating tank, a clearing tank and a nano-filtrating system. The calcium and heavy metal removing tank is provided with a first dosage unit, the coagulating tank is communicated with the calcium and heavy metal removing tank and provided with a second dosage unit, the clearing tank is communicated with the coagulating tank, the nano-filtrating system is communicated with the clearing tank, a third dosage unit and a filter are arranged between the clearing tank and the nano-filtrating system, the nano-filtrating system comprises a sulfate concentrated water outlet and a chlorine salt fresh water outlet, the sulfate concentrated water outlet is communicated with a flue evaporation system, and the chlorine salt fresh water outlet is communicated with a membrane concentration system. The invention further provides a method based on the device. The device can adapt to needs of a flue evaporation method to treat desulfurated wastewater, and running and treating cost is lowered substantially.

Description

A kind of Novel desulphurization wastewater zero discharge processes device and method
Technical field
The present invention relates to environmental protection technical field, be specifically related to a kind of Novel desulphurization wastewater zero discharge and process device and method.
Background technology
Most of coal-burning power plant of China have employed Limestone-gypsum Wet Flue Gas Desulfurization Process technology, in order to remove the sulfur dioxide in flue gas. In process of wet desulphurization, producing desulfurization wastewater, desulfurization wastewater complicated component, containing high concentration suspended matter, oversaturated sulphite, chloride ion, sulfate and various heavy. Current desulfurization wastewater mainly adopts chemical precipitation method to process, part index number difficulty up to standard, even if after process up to standard, due to sulfate substantial amounts of in waste water and muriatic existence, water outlet salinity is still up to about 3%, it is difficult to recycling, surface water and soil ecology also can be caused after outer row to break, cause secondary pollution. Therefore, the exploitation of desulfurization wastewater zero discharge treatment technology increasingly comes into one's own.
Flue facture is a kind of method that waste water carries out spray evaporation process in flue. When adopting flue evaporation to process desulfurization wastewater, spray in the flue before electric cleaner after desulfurization wastewater being atomized initially with certain spray regime, waste water evaporates rapidly gasification with the form of droplet after high-temperature flue gas heats, float therein and soluble solids form fine solid particles, then under the effect of carrying secretly of air-flow, enter electric cleaner and caught removal by electrode, to arrange outside dust form, the waste water near-zero release finally realizing desulfurization processes.
Compared with existing desulfurization wastewater treatment technology, flue evaporation has many merits: equipment is simple, without adding chemical agent, it is possible to effectively overcome the shortcoming that existing Waste Water Treatment equipment is many, investment is big, operating cost is high and equipment repair and maintenance workload is big; Running simple to operate, the pollutant in waste water are discharged with ash form-separating, without sludge treatment problem; Owing to waste water introduces in flue, it is possible to properly increase smoke moisture, thus reducing the ratio resistance of dust granule in flue gas, be conducive to improving efficiency of dust collection.
But, flue evaporation process there is also following weak point: first, flue evaporation disposal ability is limited, for some power plant, it is subject to the impacts such as flue gas moisture content, flue-gas temperature, exhaust gas volumn, in order to ensure the subsequent techniques such as dedusting not to be had a negative impact, this technique can only evaporation section waste water; Second, owing to useless impurities in water eventually enters in flyash, it is possible to the comprehensive utilization of flyash can be had a strong impact on.
Therefore, in order to overcome the disadvantages mentioned above of flue evaporation, it is necessary to develop Novel desulphurization wastewater zero emission treatment method adaptable, that economy is high.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of Novel desulphurization wastewater zero discharge and process device and method. Can adapt to the demand of flue evaporation desulfurization wastewater is processed, and operation and processing cost are greatly reduced.
For reaching above-mentioned purpose, the concrete technical scheme that the present invention takes is:
The device that a kind of Novel desulphurization wastewater zero discharge processes, including:
One deliming, except weight pond, is provided with one first dispensing unit;
Remove the coagulating basin that weight pond connects with described deliming, be provided with one second dispensing unit;
The depositing reservoir connected with described coagulating basin;
The nanofiltration system connected with described depositing reservoir; It is provided with one a 3rd dispensing unit and filter between described depositing reservoir and nanofiltration system;
Described nanofiltration system includes a dense water out of sulfate and a villaumite water outlet, the dense water out of described sulfate and flue vapo(u)rization system connection; Described villaumite water outlet and a membrance concentration system connectivity.
Further, described deliming is bucket-shaped except the bottom of weight pond, coagulating basin and depositing reservoir, and described bucket-shaped tip is all communicated to a spoil disposal pipeline.
Further, described deliming is equipped with a liquid mixing device except weight pond and coagulating basin.
Further, described membrance concentration system has condensed water outlet and a water outlet, and the outlet of described condensed water connects with a crystallizing evaporator.
Further, described membrance concentration system is selected from one or more in counter-infiltration system, positive osmosis system, electrodialysis system or Membrane Materials system.
Utilize said apparatus to carry out zero emission treatment of desulfured waste water, comprise the following steps:
1) desulfurization wastewater enters deliming except weight pond, and to deliming except adding a combination medicament A in weight pond, controlling pH in reactor is 9��10.5, makes the calcium in desulfurization wastewater generate precipitation of calcium carbonate, and heavy metal generates corresponding precipitation of hydroxide and/or sulfide precipitation; Obtain softening waste water;
2) softening waste water enters coagulating basin, adds combination medicament B, improved the mud-water separation performance of softening waste water by flocculation reaction, make calcium concentration in waste water be reduced to 2��40mg/L in coagulating basin; Obtain flocculation waste water;
3) flocculation waste water enters depositing reservoir, after mud-water separation, obtains sludge settling and low concentration wastewater;
4) nanofiltration system is entered by a filter after low concentration wastewater pH value being pulled back to 6��8;
5) nanofiltration system produces after nanofiltration processes sulfate and/or the dense water of sulphite enter flue vapo(u)rization system and dispose; The villaumite fresh water (solute solution based on sodium chloride) that nanofiltration system produces enters membrance concentration system.
Further, the distilled water also including membrance concentration system is produced carries out reuse; And the dense water that membrance concentration system produces enters crystallizing evaporator disposal.
Further, described sulfate and/or the dense water of sulphite spray into a cleaner unit leading portion flue by high pressure.
Further, the dense water that described membrance concentration system produces enters flue vapo(u)rization system.
By taking technique scheme, waste water divides after salt treatment through nanofiltration, can reduction flue evaporating waste water amount effective, controllable, the chloride ion total amount that the reduction that simultaneously can control sprays in flue, be conducive to the flyash chlorinty wide fluctuations avoided because flue evaporation process causes, and then avoid the comprehensive utilization of flyash is had a negative impact. Additionally, by controlling adding of agent in pretreatment of the present invention, only carry out removing heavily deliming, it is not necessary to demagging, require during due to demagging that wastewater pH controls higher, while avoiding heavy metal in waste water to enter in flyash, it is to avoid technology for removal of magnesium from phosphorous brings substantial amounts of reagent consumption. To sum up, the present invention have that flow process is simple, added amount of chemical is few, strong adaptability and the low advantage of processing cost.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram that the Novel desulphurization wastewater zero discharge in one embodiment of the invention processes device.
Detailed description of the invention
Features described above and advantage for making the present invention can become apparent, special embodiment below, and coordinate institute's accompanying drawing to be described in detail below.
As it is shown in figure 1, in an embodiment, it is provided that the device that a kind of Novel desulphurization wastewater zero discharge processes, including: deliming removes weight pond 1, is provided with one first dispensing unit; Remove, with deliming, the coagulating basin 3 that weight pond 1 connects, be provided with one second dispensing unit; The depositing reservoir 5 connected with coagulating basin 3; The nanofiltration system 9 connected with depositing reservoir 5; The vacuum pump 7,1 the 3rd that is provided with between depositing reservoir 5 and nanofiltration system 9 is offerd medicine unit and filter 8;
Nanofiltration system 9 includes a dense water out of sulfate and a villaumite water outlet, and the dense water out of sulfate connects with flue vapo(u)rization system 10; Villaumite water outlet connects with membrance concentration system 11.
Deliming is bucket-shaped except the bottom of weight pond 1, coagulating basin 3 and depositing reservoir 5, and described bucket-shaped tip is all communicated to spoil disposal pipeline 6.
Deliming is equipped with a liquid mixing device except weight pond 1 and coagulating basin 3. In Fig. 1, this liquid mixing device is specially the first agitating device 2 and the second agitating device 4, in some other embodiment, it is also possible to realize the mixed function of liquid by aerator.
Membrance concentration system 11 has condensed water outlet 13 and a water outlet 12, and condensed water outlet connects with crystallizing evaporator 14. Crystallizing evaporator 14 has a crystallization outlet 16 and recycle-water outlet 15 respectively
Membrance concentration system 11 is selected from one or more in counter-infiltration system, positive osmosis system, electrodialysis system or Membrane Materials system. Choose according to different operating modes and actual demand.
Filter 8 main purpose is to remove the float in waste water, makes concentration of suspension in waste water meet the inflow requirement of nanofiltration system 9, it is possible to for more medium filter, it is also possible to for the filtration system such as ultrafiltration or microfiltration.
Utilize said apparatus to carry out zero emission treatment of desulfured waste water, comprise the following steps:
First desulfurization wastewater enters deliming except weight pond, by medicament addition device to deliming except adding combination medicament A in weight pond, combination medicament is basic agent, carbonate and organic sulfur, preferred agents is calcium hydroxide, sodium carbonate and organic sulfur, controlling pH in reactor is 9��10.5, making calcium in waste water generate precipitation of calcium carbonate, the heavy metal such as chromium, zinc, hydrargyrum generates corresponding precipitation of hydroxide and sulfide precipitation. Then waste water enters coagulating basin by overflow or pipeline, opens agitating device, is simultaneously introduced combination medicament B, and combination medicament B includes flocculant and flocculation aid, improves mud-water separation performance by flocculation reaction, removes part COD simultaneously; Calcium concentration in waste water is made to be reduced to 2��40mg/L;
In depositing reservoir, calcium ion concentration controls, and mainly guarantees that nanofiltration system can be properly functioning, can control flexibly according to subsequent concentration multiple, it is ensured that economy;
Waste water in coagulating basin enters depositing reservoir by overflow or pipeline, after mud-water separation, supernatant enters filter by water pump, certain density medicament C is added by pipe-line mixer before entering filter, i.e. hydrochloric acid, wastewater pH pulls back to 6��8, and the mud that deliming produces except weight pond, coagulating basin and depositing reservoir enters spoil disposal pipeline, and then thickening processes further;
After waste water is filtered, after then making filtration, in waste water, concentration of suspension meets nanofiltration inflow requirement; Filter water outlet enters nanofiltration system, and the dense water produced after nanofiltration processes mainly contains sulfate radical, inferior sulfate radical, magnesium ion, calcium ion etc., and dense water enters flue vapo(u)rization system and disposes;
The dense water of described nanofiltration system sprays into cleaner unit leading portion flue by high-pressure nozzle, under high-temperature flue gas heats, aqueous water in waste water is evaporated to water vapour at short notice, the then crystallization of the impurity such as inorganic salt forms solid matter, entering follow-up cleaner unit then as flue gas, the magazine in final waste water is collected with the form of dirt;
The fresh water (solute solution based on sodium chloride) that described nanofiltration system produces enters membrance concentration system;
After membrance concentration system processes, the fresh water produced is back in power plant, according to characteristics such as power-plant flue gas generation amount, constituent, temperature, fly ash in electric power plant comprehensive utilization situation, and the parameter such as this power plant desulfurization waste water water yield, water quality, it is determined that membrance concentration system produces the processing mode of the dense water of sodium chloride;
If described membrance concentration system produces dense water by flue evaporation process, total utilization of PCA will not be produced impact, then the dense water that the dense water of membrance concentration system generation and nanofiltration system produce is combined into flue vapo(u)rization system and processes;
If fly ash in electric power plant comprehensively utilizes, or described membrance concentration system produces dense water by flue evaporation process, total utilization of PCA can be had a negative impact, then membrance concentration system produces dense water and enters crystallizing evaporator, produces crystal salt and sells as outside Nacl; The distilled water produced is back to power plant.
For a Practical Project, taking certain power plant desulfurization waste water, desulfurization wastewater initially enters deliming except weight pond, by adding calcium hydroxide, sodium carbonate and organic sulfur, controlling pH in reactor is 9��10.5, makes the heavy metal such as the calcium in waste water and chromium, zinc, hydrargyrum generate corresponding precipitation and remove. Then waste water enters coagulating basin, flocculant and flocculation aid, improves mud-water separation performance, removes part COD simultaneously; Make calcium concentration in waste water be reduced to 2��40mg/L, meet subsequent nano-filtration inflow requirement.
Then the waste water in coagulating basin enters depositing reservoir, after mud-water separation, supernatant is logical enters filter, certain density hydrochloric acid is added by pipe-line mixer before entering filter, wastewater pH is pulled back to 6��8, the mud that deliming produces except weight pond, coagulating basin and depositing reservoir enters spoil disposal pipeline, and then thickening processes further; After waste water is filtered, waste water enters nanofiltration system, and the dense water that nanofiltration produces after processing enters flue vapo(u)rization system and disposes; The fresh water (solute solution based on sodium chloride) that nanofiltration produces enters membrance concentration system.
After membrance concentration system processes, the fresh water of generation is back in power plant, produces dense water and enters crystallizing evaporator, produces crystal salt and sells as outside Nacl; The distilled water that evaporative crystallization produces is back to power plant.
Different according to adopting membrance concentration technique, through adjusting, ton water handling is about 15-25 unit; Relatively prior art significantly declines, and multi-products produce water can reuse, by increasing capacitance it is possible to increase additional income or reduce respective handling cost, avoid the chlorine in waste water that total utilization of PCA is had a negative impact simultaneously.
It should be noted that; the above, for the preferably case study on implementation of the present invention, not impose any restrictions the present invention; every any simple modification, change and equivalent structure change above example made according to the technology of the present invention essence, all still falls within the protection domain of technical solution of the present invention.

Claims (9)

1. the device that a Novel desulphurization wastewater zero discharge processes, it is characterised in that including:
One deliming, except weight pond, is provided with one first dispensing unit;
Remove the coagulating basin that weight pond connects with described deliming, be provided with one second dispensing unit;
The depositing reservoir connected with described coagulating basin;
The nanofiltration system connected with described depositing reservoir; It is provided with one a 3rd dispensing unit and filter between described depositing reservoir and nanofiltration system;
Described nanofiltration system includes a dense water out of sulfate and a villaumite water outlet, the dense water out of described sulfate and flue vapo(u)rization system connection; Described villaumite water outlet and a membrance concentration system connectivity.
2. the device that Novel desulphurization wastewater zero discharge as claimed in claim 1 processes, it is characterised in that described deliming is bucket-shaped except the bottom of weight pond, coagulating basin and depositing reservoir, and described bucket-shaped tip is all communicated to a spoil disposal pipeline.
3. the device that Novel desulphurization wastewater zero discharge as claimed in claim 1 processes, it is characterised in that described deliming is equipped with a liquid mixing device except weight pond and coagulating basin.
4. the device that Novel desulphurization wastewater zero discharge as claimed in claim 1 processes, it is characterised in that described membrance concentration system has condensed water outlet and a water outlet, and the outlet of described condensed water connects with a crystallizing evaporator.
5. the device that Novel desulphurization wastewater zero discharge as claimed in claim 1 processes, it is characterised in that described membrance concentration system is selected from one or more in counter-infiltration system, positive osmosis system, electrodialysis system or Membrane Materials system.
6. the zero emission treatment of desulfured waste water utilizing device described in any one of claim 1 to 5 to carry out, comprises the following steps:
1) desulfurization wastewater enters deliming except weight pond, and to deliming except adding a combination medicament A in weight pond, controlling pH in reactor is 9��10.5, makes the calcium in desulfurization wastewater generate precipitation of calcium carbonate, and heavy metal generates corresponding precipitation of hydroxide and/or sulfide precipitation; Obtain softening waste water;
2) softening waste water enters coagulating basin, adds combination medicament B, improved the mud-water separation performance of softening waste water by flocculation reaction, make calcium concentration in waste water be reduced to 2��40mg/L in coagulating basin; Obtain flocculation waste water;
3) flocculation waste water enters depositing reservoir, after mud-water separation, obtains sludge settling and low concentration wastewater;
4) nanofiltration system is entered by a filter after low concentration wastewater pH value being pulled back to 6��8;
5) nanofiltration system produces after nanofiltration processes sulfate and/or the dense water of sulphite enter flue vapo(u)rization system and dispose; The villaumite fresh water (solute solution based on sodium chloride) that nanofiltration system produces enters membrance concentration system.
7. zero emission treatment of desulfured waste water as claimed in claim 6, it is characterised in that the distilled water also including membrance concentration system is produced carries out reuse; And the dense water that membrance concentration system produces enters crystallizing evaporator disposal.
8. zero emission treatment of desulfured waste water as claimed in claim 6, it is characterised in that described sulfate and/or the dense water of sulphite spray into a cleaner unit leading portion flue by high pressure.
9. zero emission treatment of desulfured waste water as claimed in claim 6, it is characterised in that the dense water that described membrance concentration system produces enters flue vapo(u)rization system.
CN201610081217.9A 2016-02-05 2016-02-05 Novel desulfurated wastewater zero-emission treatment device and method Pending CN105621775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610081217.9A CN105621775A (en) 2016-02-05 2016-02-05 Novel desulfurated wastewater zero-emission treatment device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610081217.9A CN105621775A (en) 2016-02-05 2016-02-05 Novel desulfurated wastewater zero-emission treatment device and method

Publications (1)

Publication Number Publication Date
CN105621775A true CN105621775A (en) 2016-06-01

Family

ID=56037182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610081217.9A Pending CN105621775A (en) 2016-02-05 2016-02-05 Novel desulfurated wastewater zero-emission treatment device and method

Country Status (1)

Country Link
CN (1) CN105621775A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106241972A (en) * 2016-08-23 2016-12-21 盛发环保科技(厦门)有限公司 Based on electrodialytic zero emission treatment of desulfured waste water and system
CN106430786A (en) * 2016-11-08 2017-02-22 神华集团有限责任公司 Desulfurization wastewater treating method and device
CN107954560A (en) * 2017-11-08 2018-04-24 西安协力动力科技有限公司 The technique that vapor recompression is concentrated by evaporation joint flue spray technique processing waste water
CN108996788A (en) * 2018-07-27 2018-12-14 浙江德创环保科技股份有限公司 A kind of zero emission method of wastewater based on crystallisation by cooling and flue evaporation technique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7501065B1 (en) * 2006-05-08 2009-03-10 Bader Mansour S Methods for treating agricultural drainage water and the like
CN104150669A (en) * 2014-08-22 2014-11-19 国家电网公司 Thermal power plant desulphurization wastewater purification system and purification method
CN104355473A (en) * 2014-10-28 2015-02-18 中国科学院过程工程研究所 Method for carrying out desalination and zero-discharge processing of power plant desulphurization wastewater by adopting electrodialysis technology
CN104843927A (en) * 2015-05-26 2015-08-19 中国华电工程(集团)有限公司 Desulfurization waste water zero discharging process and system
CN204675945U (en) * 2015-05-26 2015-09-30 中国华电工程(集团)有限公司 Desulfurization wastewater Zero discharging system
CN105236659A (en) * 2015-11-06 2016-01-13 北京沃特尔水技术股份有限公司 Nanofiltration treatment method of desulfurization waste water
CN105254084A (en) * 2015-11-13 2016-01-20 北京国电富通科技发展有限责任公司 Desulfurization waste water bipolar membrane electrodialysis treatment method and device
CN205556349U (en) * 2016-02-05 2016-09-07 大唐环境产业集团股份有限公司 Novel zero release of desulfurization waste water is handled device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7501065B1 (en) * 2006-05-08 2009-03-10 Bader Mansour S Methods for treating agricultural drainage water and the like
CN104150669A (en) * 2014-08-22 2014-11-19 国家电网公司 Thermal power plant desulphurization wastewater purification system and purification method
CN104355473A (en) * 2014-10-28 2015-02-18 中国科学院过程工程研究所 Method for carrying out desalination and zero-discharge processing of power plant desulphurization wastewater by adopting electrodialysis technology
CN104843927A (en) * 2015-05-26 2015-08-19 中国华电工程(集团)有限公司 Desulfurization waste water zero discharging process and system
CN204675945U (en) * 2015-05-26 2015-09-30 中国华电工程(集团)有限公司 Desulfurization wastewater Zero discharging system
CN105236659A (en) * 2015-11-06 2016-01-13 北京沃特尔水技术股份有限公司 Nanofiltration treatment method of desulfurization waste water
CN105254084A (en) * 2015-11-13 2016-01-20 北京国电富通科技发展有限责任公司 Desulfurization waste water bipolar membrane electrodialysis treatment method and device
CN205556349U (en) * 2016-02-05 2016-09-07 大唐环境产业集团股份有限公司 Novel zero release of desulfurization waste water is handled device

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
孙少鹏等: "燃煤火力发电厂脱硫废水处理技术的研究", 《科技前沿》 *
张忠等: "《火电厂脱硫与脱硝实用技术手册》", 31 July 2014, 中国水利水电出版社 *
李录新: "火电厂排放物二次利用浅析", 《科技广场》 *
金明柏: "《水处理系统设计实务》", 31 March 2010, 中国电力出版社 *
鲁刚: "《新编农村供水工程规划设计手册(第二卷)》", 30 November 2006, 中国水利水电出版社 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106241972A (en) * 2016-08-23 2016-12-21 盛发环保科技(厦门)有限公司 Based on electrodialytic zero emission treatment of desulfured waste water and system
CN106430786A (en) * 2016-11-08 2017-02-22 神华集团有限责任公司 Desulfurization wastewater treating method and device
CN106430786B (en) * 2016-11-08 2020-04-03 神华集团有限责任公司 Desulfurization wastewater treatment method and device
CN107954560A (en) * 2017-11-08 2018-04-24 西安协力动力科技有限公司 The technique that vapor recompression is concentrated by evaporation joint flue spray technique processing waste water
CN108996788A (en) * 2018-07-27 2018-12-14 浙江德创环保科技股份有限公司 A kind of zero emission method of wastewater based on crystallisation by cooling and flue evaporation technique

Similar Documents

Publication Publication Date Title
CN104355473B (en) A kind of method using electrodialytic technique to carry out power plant desulfurization waste water desalination zero discharge treatment
CN105621775A (en) Novel desulfurated wastewater zero-emission treatment device and method
CN104860461B (en) A kind of desulfurization wastewater zero-emission prepares the method and device of NaCl Nacls
CN105565573B (en) The device and method of desulfurization wastewater zero discharge treatment
CN105254084A (en) Desulfurization waste water bipolar membrane electrodialysis treatment method and device
CN105948364B (en) A kind of desulfurization wastewater zero-discharge treatment system based on bypass flue evaporation
CN105540977A (en) Desulfurized waste water treatment method and system
CN105502783A (en) Method and device for achieving wastewater zero discharging through membrane method smoke treatment and wet desulphurization
CN106365371A (en) Desulfurization waste water zero discharge processing system and processing method
CN107758962A (en) A kind of system of the preparing magnesium sulfate from desulfurization wastewater
CN105712557A (en) Desulfurization waste water zero discharging treatment device and method
CN105540960A (en) Treatment method and treatment system for wastewater produced during flue gas desulfurization adopting limestone/lime-gypsum method
CN205653287U (en) Device that zero release of desulfurization waste water was handled
CN205856232U (en) A kind of desulfurization wastewater zero-discharge treatment system based on bypass flue evaporation
CN205556349U (en) Novel zero release of desulfurization waste water is handled device
CN205773874U (en) A kind of Novel desulphurization waste water zero discharge device
CN205616698U (en) Desulfurization waste water zero release processing system
CN208265947U (en) A kind of less scaling desulfurizing waste water processing device
CN107151072B (en) Treatment process of desulfurization wastewater
CN105621776B (en) A kind of processing method of fire coal boiler fume wet desulphurization waste water
CN205556348U (en) Desulfurization waste water zero release processing apparatus
CN205653297U (en) Desulfurization waste water zero release substep recovery unit
CN205556350U (en) Desulfurization waste water zero release processing system
CN109399855A (en) A kind of zero emission treatment of desulfured waste water
CN110316897A (en) A kind of system and method for the full factory waste water zero discharge of power plant and resource utilization

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160601