CN105668860A - Desulfurization wastewater zero-emission and resource comprehensive treatment recycling method and equipment - Google Patents
Desulfurization wastewater zero-emission and resource comprehensive treatment recycling method and equipment Download PDFInfo
- Publication number
- CN105668860A CN105668860A CN201610174190.8A CN201610174190A CN105668860A CN 105668860 A CN105668860 A CN 105668860A CN 201610174190 A CN201610174190 A CN 201610174190A CN 105668860 A CN105668860 A CN 105668860A
- Authority
- CN
- China
- Prior art keywords
- water
- desulfurization wastewater
- reverse osmosis
- high pressure
- comprehensive treatment
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/04—Hypochlorous acid
- C01B11/06—Hypochlorites
- C01B11/062—Hypochlorites of alkali metals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to desulfurization wastewater zero-emission and resource comprehensive treatment recycling method and equipment. The method includes steps of wastewater quality fluctuation adjusting, separation of suspended matters in wastewater, mixing homogeneous adjusting, high-pressure nanofiltration separation, high-pressure reverse-osmosis concentration and sodium hypochloride generation. The equipment comprises a wastewater quality fluctuation adjusting device, a suspended matter separating device, a mixing homogeneous adjusting pool, a pressurizing pump, a high-pressure nanofiltration separating device, a nanofiltration water generating tank, a lifting pump, a high-pressure reverse-osmosis concentration device and a sodium hypochloride generator. The method and the equipment have the advantages that the suspended matters in desulfurization wastewater can be quickly removed; the wastewater after being treated to reach standards can be recycled in a desulfurization process; a qualified sodium hypochloride commodity can be generated; scaling of a membrane system can be guaranteed without softening; investment and running cost is low, and waste is recycled (a product is the sodium hypochloride commodity).
Description
Technical field
The present invention relates to desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method and apparatus, belong to high pressure nanofiltration system and desulfurization wastewater zero-emission and resource comprehensive treatment for reuse technical field.
Background technology:
Existing have the following disadvantages for desulfurization wastewater treatment technology:
1, wet process of FGD is that sulfur atmospheric pollution processes a kind of sulfur removal technology ripe, efficient, is widely used in various flue gas desulfurization device; But wet desulphurization can produce desulfurization wastewater, containing substantial amounts of float, calcium and magnesium hardness ions, activated silica, heavy metal, COD, sodium chloride, high salt amount and other particular matters in this effluent part; Present stage desulfurization wastewater is substantially discharge after simple process, and environment main is brought very big impact by such waste water resource; So, how reusing synthesized desulfurization wastewater, reach wastewater zero discharge and so as to resource is a kind of trend that desulfurization wastewater processes, be also a technical barrier simultaneously.
2, the existing technical research processed about desulfurization wastewater, there are some problems in method and principle:
It is CN104743732A " a kind of method of power plant desulfurization wastewater zero discharge reuse " in China Patent No., CN104843927A " desulfurization wastewater technique of zero discharge and system ", CN105110543A " a kind of thermal power plant coal unit desulfurization wastewater Zero discharging system ", CN104860461A method and the device of NaCl Nacl " a kind of desulfurization wastewater zero-emission prepare ", 200610166002 " a kind of flue gas desulfurization waste-water processing method and system and devices ", and China Patent No. is 201110076844 " zero emission treatment of desulfured waste water and systems ", also having China Patent No. is the prior aries such as 201110204147 " method for treating desulfurized wastewaters ", recycle in research at relevant desulfurization wastewater, they common feature are: add medicament in desulfurization wastewater, float and part heavy metal precipitation are separated, then the water discharge that will process, or the water after processing is evaporated by atomising device and electrostatic precipitator reaches zero-emission. the shortcoming of above-mentioned technical matters is: 1) water does not carry out reuse,2) desulfurization wastewater of discharge after simple process, wherein salinity and other pollutant such as heavy metal ion, calcium and magnesium hardness ions, silicon, COD and other polluters are all discharged in environment, and environment causes the pollution of new paragon; 3) even if reaching zero-emission, being also finally adopt crystallizing evaporator to carry out zero discharge treatment, point salt then adopting investment, operating cost higher obtains Nacl.
Sulfur removal technology waste discharge is main to be because in waste water containing chloride ion (CL-), when it is too high, cause desulfurization to process the corrosion of equipment, so chloride ion (CL in sweetening process-) reach after finite concentration with regard to discharge unit waste water; Simultaneously containing calcium, magnesium, sulfate radical, sodium ion and float in waste discharge, wherein, calcium, magnesium are exactly the main component of the main consumable goods Calx of sulfur removal technology, it is possible to reuse; As long as by the chloride ion (CL in desulfurization wastewater-) remove, waste water just can be back to use sulfur removal technology and join lime white; Based on this, adopt high pressure NF membrane, retain other ions, and through monovalent ion, mainly chloride ion and sodium ion.
Summary of the invention
It is an object of the invention to, the shortcoming overcoming prior art, according to the feature of the process water of wet desulphurization and desulfurization wastewater and requirement, it is provided that the method and apparatus of a kind of desulfurization wastewater zero-emission and resource comprehensive treatment for reuse. It is to separate entering the sodium chloride solution corroding desulphurization plant in desulfurization wastewater, and other materials and waste water recycling prepare lime white to sulfur removal technology, thus reaching wastewater zero discharge; The sodium chloride solution concurrently separating out adopts hypochlorite generator, produces sodium hypochlorite product, reaches resource comprehensive treatment for reuse purpose. Owing to process not having chemical reaction, production process environmental protection, and also sodium chloride solution adopts generator, and to become sodium hypochlorite, equipment investment and energy consumption non-normally low.
Its investment and operating cost are significantly less than technique of zero discharge and the equipment of prior art.
The desulfurization wastewater zero-emission of the present invention and resource comprehensive treatment for reuse method and technology scheme be:
Desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, it comprises the steps:
The fluctuation of A, waste water quality regulates: being entered by desulfurization wastewater in waste water quality fluctuation regulating reservoir and be adjusted, the waste water quality making variation water quality big becomes the uniform water quality of variation water quality;
Float in B, separation waste water: float flocculation in step A desulfurization wastewater is formed a team and is separated from waste water by separator, and discharge float and separator product water;
C, mixing homogenizing regulate: by step B separator produce water, tap water and afterwards the reverse osmosis concentrated compression apparatus of E step high pressure reverse osmosis produced water together inject mixing homogenizing balancing tank in mixing the homogenizing dense water of output homogenizing;
D, high pressure nanofiltration separation: dense for step C homogenizing water is carried out Selective Separation by high pressure nanofiltration separation device: monovalent ion produce water enter E step process, the dense Water Sproading of divalent ion to sulfur removal technology as lime white configuration water;
E, high pressure reverse osmosis concentration: the monovalent ion of D step is produced water and is concentrated by the reverse osmosis concentrated compression apparatus of high pressure, make reverse osmosis produced water be back in step C and carry out mixing homogenizing regulate, and reverse osmosis concentrated water enters next step and processes;
F, sodium hypochlorite generate: reacted by hypochlorite generator by the reverse osmosis concentrated water of E step, generate sodium hypochlorite product.
Further technical scheme is:
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, discharging float in described step B is through mud compression, float is processed into mud cake discharge.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, in its D step, Selective Separation is that the high pressure NF membrane (HPNF) by high pressure nanofiltration separation device realizes.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, monovalent ion described in its E step is mainly Cl and Na ion, and divalent ion is mainly SO4 2-And Ca2+, and Mg2+。
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, its desulfurization wastewater flow is Q1, tap water flow to be Q2, homogenizing concentrated stream amount be Q3, divalent ion concentrated stream amount are Q4, reverse osmosis produced discharge is Q5, and the measurement unit that sodium hypochlorite product flow is Q6 is m3/h。
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, the method injecting tap water flow Q2 in its step C to mixing homogenizing balancing tank is:
When mixing homogenizing balancing tank and starting for the first time, injecting tap water flow Q2 is that the chloride ion content joined in lime white water according to the chloride ion content in desulfurization wastewater flow Q1 and sulfur removal technology is determined, when the chloride ion content in desulfurization wastewater flow Q1 is X times that sulfur removal technology joins lime white water chloride ion content, then injected tap water volume is:
Q2=(X-1) Q1;
When mixing homogenizing balancing tank and being properly functioning, injecting tap water Q2 is that the sodium hypochlorite product flow Q6 according to hypochlorite generator's discharge determines:
Q2=Q6.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, when mixing homogenizing balancing tank in its step C is properly functioning, mixing homogenizing balancing tank homogenizing concentrated stream amount Q3 is:
Q3=Q1+Q2+Q5.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, the high pressure nanofiltration separation device output divalent ion concentrated stream amount Q4 in its D step is:
Q4=Q1。
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, the reverse osmosis concentrated water of the reverse osmosis concentrated compression apparatus output of high pressure in its E step is mainly sodium chloride (NaCl), and sodium chloride content is 120,000～150,000 mg/litre.
Desulfurization wastewater zero-emission for inventive desulfurization wastewater zero discharge with resource comprehensive treatment for reuse method with resource comprehensive treatment for reuse equipment and technology scheme is:
A kind of desulfurization wastewater zero-emission for the inventive method and resource comprehensive treatment for reuse equipment, device and the parts installed by water (flow) direction order include: waste water quality fluctuation regulates device, float segregation apparatus, mixing homogenizing balancing tank, booster pump, high pressure nanofiltration separation device, nanofiltration product water tank, elevator pump, the reverse osmosis concentrated compression apparatus of high pressure and hypochlorite generator; Described waste water quality fluctuation regulates device and includes regulating reservoir and delivery pump, and this delivery pump is connected with the separator of float segregation apparatus; Equipped with drug feeding device on separator; One outlet of separator is used for discharging mud, is connected with mud compressor, and another outlet is used for exporting separator and produces water, is connected with mixing homogenizing balancing tank; Mixing homogenizing balancing tank also has two entrances: an entrance communicates with running water pipe, and another entrance communicates with the reverse osmosis produced water out of the reverse osmosis concentrated compression apparatus of high pressure; The outlet of mixing homogenizing balancing tank is connected by the entrance of booster pump with high pressure nanofiltration separation device; High pressure nanofiltration separation device has two outlets: an outlet is produced water tank with nanofiltration and is connected, and another outlet is connected with lime white configuration device in sulfur removal technology; Nanofiltration is produced tank outlet and is connected with high pressure reverse osmosis concentration device portal by elevator pump; The reverse osmosis concentrated compression apparatus of high pressure has two outlets: one is reverse osmosis produced water out, is connected with mixing homogenizing balancing tank, and another is reverse osmosis concentrated water out, is connected with hypochlorite generator; Hypochlorite generator is provided with sodium hypochlorite product floss hole.
Further technical scheme is:
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse equipment, the operating pressure of the reverse osmosis concentrated compression apparatus of described high pressure is 50bar to 160bar.
In conjunction with principles of the invention, technical scheme and effect are illustrated as follows:
Sulfur removal technology waste discharge is main to be because in waste water containing chloride ion (CL-), when it is too high, cause desulfurization to process the corrosion of equipment, so chloride ion (CL in sweetening process-) reach after finite concentration with regard to discharge unit waste water; Simultaneously containing calcium, magnesium, sulfate radical, sodium ion and float in waste discharge, wherein, calcium, magnesium are exactly the main component of the main consumable goods Calx of sulfur removal technology, it is possible to reuse; As long as by the chloride ion (CL in desulfurization wastewater-) remove, waste water just can be back to use sulfur removal technology and join lime white; Based on this, adopt the performance of high pressure NF membrane, retain other ions, and through monovalent ion, mainly chloride ion and sodium ion; And the divalent ion calcium retained, magnesium, sulfate radical etc. are back to use sulfur removal technology; But NF membrane to consider two problems when processing desulfurization wastewater: one is, the chloride ion in the dense water of nanofiltration is suitable with chloride ion in water inlet, and direct reuse causes the circulation of a large amount of chloride ion; For this problem, adopting into water-reducible way, the chloride ion in desulfurization wastewater is diluted to sulfur removal technology to join the chloride ion content in lime white water suitable, the chloride ion content in the dense water of such nanofiltration just meets reuse standard, can reuse; Two are, calcium in desulfurization wastewater, magnesium, sulfate radical etc., already at saturation, if directly concentrated by NF membrane, have the probability that fouling dirt is stifled; For this problem, the added water distribution when solving first problem, fouling risk is diluted, when nanofiltration concentrates, divalent ion concentrated stream amount is equal to total desulfurization wastewater flow, and namely the various scale-forming ions in high pressure nanofiltration separation condensed water are identical with desulfurization wastewater, and in desulfurization wastewater, non-scaling is in saturation, without fouling in high pressure nanofiltration separation condensed water, thus solving the scale problems of the dense water side of nanofiltration. One of key of the present invention seeks to add tap water and dilutes the desulfurization wastewater of separated mistake. Affiliated tap water is with in chloride ion in desulfurization wastewater and sodium ion to high pressure nanofiltration separation device, after high pressure nanofiltration separation, enter it produce water, adopt high pressure reverse osmosis concentrated compression apparatus that most water that high pressure nanofiltration monovalent ion produces in water are become reverse osmosis produced Water Sproading again, the reverse osmosis produced water reclaimed is back to use again the desulfurization wastewater going to dilute separated mistake in mixing homogenizing balancing tank, front end, this addresses the problem the water resources problem of mixing homogenizing regulating step tap water. And reverse osmosis concentrated water is mainly the sodium chloride solution of high concentration, adopts hypochlorite generator to produce sodium hypochlorite, become high-quality, highly purified commodity; The investment of hypochlorite generator 9 and operating cost are all non-normally low.
Prior art is that the mode of reverse osmosis concentrated liquid crystallizing evaporator is processed into sodium chloride salinity, but, the investment of crystallizing evaporator and operating cost are very high, and running employing steam as thermal source, the generation of steam requires have super demineralized water and coal combustion heating, so, it is really when running with steam and is consuming the new energy, producing new pollution, being worth well below the value consuming steam of produced sodium chloride Nacl, economic benefit is extremely low.
To sum up, the major technique effect of the present invention is as follows:
The zero-emission of tradition desulfurization wastewater can be upgraded to desulfurization wastewater zero-emission and resource comprehensive treatment for reuse by the present invention.
1, float in desulfurization wastewater is removed by the present invention, subsequently into middle mixing homogenizing balancing tank, adds tap water, dilutes the chloride ion in desulfurization wastewater and all contaminated ions (calcium, magnesium, sulfate radical, carbonate etc.);Entering back into high pressure nanofiltration separation device, this avoid the stifled problem of the fouling of high pressure nanofiltration separation main frame film and dirt, solve chloride ion reuse problem up to standard in the dense water of NF membrane simultaneously, NF concentrated water reuse is to sulfur removal technology lime white configuration water; The product water of high pressure nanofiltration separation device concentrates with high pressure reverse osmosis unit again, and the reverse osmosis produced water producing high-quality adds to mixing homogenizing balancing tank, and reverse osmosis concentrated water enters hypochlorite generator and produces highly purified sodium hypochlorite product; The comprehensive recycling of waste water eventually arrives at liquid zero emission, the sodium chloride resource in waste water is turned to sodium hypochlorite product simultaneously.
2, present invention employs the tap water moisturizing of the mixing homogenizing balancing tank of centre, solve the scale problems of follow-up high pressure nanofiltration, solve the dense water of nanofiltration simultaneously, namely monovalent ion produces the problem that in water, chloride ion meets reuse index;
3, sulfurization process facilities can will be had the chloride ion of severe corrosive to separate by the high pressure nanofiltration separation in the present invention;
4, the high pressure reverse osmosis concentration step in the present invention reclaims reverse osmosis produced water, adds to mixing homogenizing balancing tank on the one hand as moisturizing, has saved the consumption of tap water, also concentrated by sodium chloride solution simultaneously.
5, sodium chloride solution is directly become sodium hypochlorite product by the present invention.
Accompanying drawing explanation
Fig. 1 is the program schematic diagram of inventive desulfurization wastewater zero discharge and resource comprehensive treatment for reuse method.
Fig. 2 is the equipment schematic diagram for inventive desulfurization wastewater zero discharge Yu resource comprehensive treatment for reuse method.
In figure, the name of each accompanying drawing labelling is called:
1 waste water quality fluctuation regulates device; 1.1 regulating reservoirs; 1.2 delivery pumps; 2 float segregation apparatuss; 2.1 separators; 2.2 drug feeding devices; 2.3 mud compressoies; 3 mixing homogenizing balancing tanks; 3.1 running water pipes; 4 booster pumps; 5 high pressure nanofiltration separation devices; Water tank is produced in 6 nanofiltrations; 7 elevator pumps; The 8 reverse osmosis concentrated compression apparatus of high pressure; 9 hypochlorite generators; 10 sodium hypochlorite product floss holes; Q1 desulfurization wastewater flow; Q11 separator produces discharge; Q12 mud discharge; Q2 tap water flow; Q3 homogenizing concentrated stream amount is; Q4 divalent ion concentrated stream amount; Q41 monovalent ion produces discharge; The reverse osmosis produced discharge of Q5; The reverse osmosis concentrated discharge of Q51; Q6 sodium hypochlorite product flow.
Detailed description of the invention
In conjunction with the accompanying drawings and embodiments one desulfurization wastewater zero-emission of the present invention and resource comprehensive treatment for reuse method and apparatus are described further as follows:
Embodiment 1: as it is shown in figure 1, be the basic embodiment of a kind of desulfurization wastewater zero-emission of the present invention and resource comprehensive treatment for reuse method.
A kind of desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, it comprises the steps:
The fluctuation of A, waste water quality regulates: being entered by desulfurization wastewater in waste water quality fluctuation regulating reservoir and be adjusted, the waste water quality making variation water quality big becomes the uniform water quality of variation water quality;
Float in B, separation waste water: float flocculation in step A desulfurization wastewater is formed a team and is separated from waste water by separator, and discharge float and separator product water;
C, mixing homogenizing regulate: by step B separator produce water, tap water and afterwards the reverse osmosis concentrated compression apparatus of E step high pressure reverse osmosis produced water together inject mixing homogenizing balancing tank in mixing the homogenizing dense water of output homogenizing;
D, high pressure nanofiltration separation: dense for step C homogenizing water is carried out Selective Separation by high pressure nanofiltration separation device: monovalent ion produce water enter E step process, the dense Water Sproading of divalent ion to sulfur removal technology as lime white configuration water;
E, high pressure reverse osmosis concentration: the monovalent ion of D step is produced water and is concentrated by the reverse osmosis concentrated compression apparatus of high pressure, make reverse osmosis produced water be back in step C and carry out mixing homogenizing regulate, and reverse osmosis concentrated water enters next step and processes;
F, sodium hypochlorite generate: reacted by hypochlorite generator by the reverse osmosis concentrated water of E step, generate sodium hypochlorite product.
Embodiment 2: be further embodiment on the basis of above-described embodiment 1: discharging float in described step B is through mud compression, float is processed into mud cake discharge. In its described D step, Selective Separation is that the high pressure NF membrane (HPNF) by high pressure nanofiltration separation device realizes. Monovalent ion described in described E step is mainly Cl and Na ion, and divalent ion is mainly SO4 2—And Ca2+, and Mg2+. Described desulfurization wastewater flow be Q1, separator produce discharge be Q11, mud discharge is Q12, it is Q41 that tap water flow is Q2, homogenizing concentrated stream amount to be Q3, divalent ion concentrated stream amount be Q4, monovalent ion produce discharge, reverse osmosis produced discharge is Q5, reverse osmosis concentrated discharge is Q51, and the measurement unit that sodium hypochlorite product flow is Q6 is m3/h。
The method injecting tap water flow Q2 in described step C to mixing homogenizing balancing tank is:
When mixing homogenizing balancing tank and starting for the first time, injecting tap water flow Q2 is that the chloride ion content joined in lime white water according to the chloride ion content in desulfurization wastewater flow Q1 and sulfur removal technology is determined, when the chloride ion content in desulfurization wastewater flow Q1 is X times that sulfur removal technology joins lime white water chloride ion content, then injected tap water volume is:
Q2=(X 1) Q1;
When mixing homogenizing balancing tank and being properly functioning, the sodium hypochlorite product flow Q6 that Q2 is according to hypochlorite generator's discharge determines:
Q2=Q6.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, when mixing homogenizing balancing tank in its step C is properly functioning, Q3 is:
Q3=Q1+Q2+Q5.
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, the high pressure nanofiltration separation device output divalent ion concentrated stream amount Q4 in its D step is:
Q4=Q1。
Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, the reverse osmosis concentrated water of the reverse osmosis concentrated compression apparatus output of high pressure in its E step is mainly sodium chloride (NaCl), and sodium chloride content is 120,000～150,000 mg/litre.
Embodiment 3: as in figure 2 it is shown, be the embodiment of the desulfurization wastewater zero-emission for the inventive method and resource comprehensive treatment for reuse equipment. Device and the parts installed by water (flow) direction order include: waste water quality fluctuation regulates device 1, float segregation apparatus 2, mixing homogenizing balancing tank 3, booster pump 4, high pressure nanofiltration separation device 5, nanofiltration product water tank 6, elevator pump 7, the reverse osmosis concentrated compression apparatus 8 of high pressure and hypochlorite generator 9; Described waste water quality fluctuation regulates device 1 and includes regulating reservoir 1.1 and delivery pump 1.2, and this delivery pump 1.2 is connected with the separator 2.1 of float segregation apparatus 2; Equipped with drug feeding device 2.2 on separator 2.1; One outlet of separator 2.1 is used for discharging mud, is connected with mud compressor 2.3, and another outlet is used for exporting separator and produces water, is connected with mixing homogenizing balancing tank 3; Mixing homogenizing balancing tank 3 also has two entrances: an entrance communicates with running water pipe 3.1, and another entrance communicates with the reverse osmosis produced water out of the reverse osmosis concentrated compression apparatus of high pressure 8;Mixing homogenizing balancing tank 3 is exported and is connected by the entrance of booster pump 4 with high pressure nanofiltration separation device 5; High pressure nanofiltration separation device 5 has two outlets: an outlet is produced water tank 6 with nanofiltration and is connected, and another outlet is connected with lime white configuration device in sulfur removal technology; Nanofiltration product water tank 6 is exported and is connected by elevator pump 7 and high pressure reverse osmosis concentrated compression apparatus 8 entrance; The reverse osmosis concentrated compression apparatus 8 of high pressure has two outlets: one is reverse osmosis produced water out, is connected with mixing homogenizing balancing tank 3, and another is reverse osmosis concentrated water out, is connected with hypochlorite generator 9; Hypochlorite generator 9 is provided with sodium hypochlorite product floss hole 10. Described desulfurization wastewater zero-emission and resource comprehensive treatment for reuse equipment, the operating pressure of the reverse osmosis concentrated compression apparatus 8 of described high pressure is 50bar to 160bar.
The claims in the present invention protection model is not limited to above-described embodiment.
Claims (11)
1. desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method, it is characterised in that comprise the steps:
The fluctuation of A, waste water quality regulates: being entered by desulfurization wastewater in waste water quality fluctuation regulating reservoir and be adjusted, the waste water quality making variation water quality big becomes the uniform water quality of variation water quality;
Float in B, separation waste water: float flocculation in step A desulfurization wastewater is formed a team and is separated from waste water by separator, and discharge float and separator product water;
C, mixing homogenizing regulate: by step B separator produce water, tap water and afterwards the reverse osmosis concentrated compression apparatus of E step high pressure reverse osmosis produced water together inject mixing homogenizing balancing tank in mixing the homogenizing dense water of output homogenizing;
D, high pressure nanofiltration separation: dense for step C homogenizing water is carried out Selective Separation by high pressure nanofiltration separation device: monovalent ion produce water enter E step process, the dense Water Sproading of divalent ion to sulfur removal technology as lime white configuration water;
E, high pressure reverse osmosis concentration: the monovalent ion of D step is produced water and is concentrated by the reverse osmosis concentrated compression apparatus of high pressure, make reverse osmosis produced water be back in step C and carry out mixing homogenizing regulate, and reverse osmosis concentrated water enters next step and processes;
F, sodium hypochlorite generate: reacted by hypochlorite generator by the reverse osmosis concentrated water of E step, generate sodium hypochlorite product.
2. desulfurization wastewater zero-emission according to claim 1 and resource comprehensive treatment for reuse method, it is characterised in that discharging float in described step B is through mud compression, float is processed into mud cake discharge.
3. desulfurization wastewater zero-emission according to claim 1 and resource comprehensive treatment for reuse method, it is characterised in that in D step, Selective Separation is that the high pressure NF membrane (HPNF) by high pressure nanofiltration separation device realizes.
4. desulfurization wastewater zero-emission according to claim 1 and resource comprehensive treatment for reuse method, it is characterised in that monovalent ion described in E step is mainly Cl and Na ion, and divalent ion is mainly SO4 2-And Ca2+, and Mg2+。
5. desulfurization wastewater zero-emission according to claim 1 and resource comprehensive treatment for reuse method, it is characterized in that, desulfurization wastewater flow is Q1, tap water flow to be Q2, homogenizing concentrated stream amount be Q3, divalent ion concentrated stream amount are Q4, reverse osmosis produced discharge is Q5, and the measurement unit that sodium hypochlorite product flow is Q6 is m3/h。
6. desulfurization wastewater zero-emission according to claim 5 and resource comprehensive treatment for reuse method, it is characterised in that the method injecting tap water flow Q2 in step C to mixing homogenizing balancing tank is:
When mixing homogenizing balancing tank and starting for the first time, injecting tap water flow Q2 is that the chloride ion content joined in lime white water according to the chloride ion content in desulfurization wastewater flow Q1 and sulfur removal technology is determined, when the chloride ion content in desulfurization wastewater flow Q1 is X times that sulfur removal technology joins lime white water chloride ion content, then injected tap water volume is:
Q2=(X-1) Q1;
When mixing homogenizing balancing tank and being properly functioning, injecting tap water Q2 is that the sodium hypochlorite product flow Q6 according to hypochlorite generator's discharge determines:
Q2=Q6.
7. desulfurization wastewater zero-emission according to claim 5 and resource comprehensive treatment for reuse method, it is characterised in that when mixing homogenizing balancing tank in step C is properly functioning, mixing homogenizing balancing tank homogenizing concentrated stream amount Q3 is:
Q3=Q1+Q2+Q5.
8. desulfurization wastewater zero-emission according to claim 5 and resource comprehensive treatment for reuse method, it is characterised in that the high pressure nanofiltration separation device output divalent ion concentrated stream amount Q4 in D step is:
Q4=Q1。
9. desulfurization wastewater zero-emission according to claim 5 and resource comprehensive treatment for reuse method, it is characterized in that, the reverse osmosis concentrated water of the reverse osmosis concentrated compression apparatus output of high pressure in E step is mainly sodium chloride (NaCl), and sodium chloride content is 120,000～150,000 mg/litre.
10. the desulfurization wastewater zero-emission of method and resource comprehensive treatment for reuse equipment described in a claim 1, it is characterized in that, device and the parts installed by water (flow) direction order include: waste water quality fluctuation regulates device (1), float segregation apparatus (2), mixing homogenizing balancing tank (3), booster pump (4), high pressure nanofiltration separation device (5), nanofiltration product water tank (6), elevator pump (7), the reverse osmosis concentrated compression apparatus of high pressure (8) and hypochlorite generator (9); Described waste water quality fluctuation regulates device (1) and includes regulating reservoir (1.1) and delivery pump (1.2), and this delivery pump (1.2) is connected with the separator (2.1) of float segregation apparatus (2); Equipped with drug feeding device (2.2) on separator (2.1); One outlet of separator (2.1) is used for discharging mud, is connected with mud compressor (2.3), and another outlet is used for exporting separator and produces water, is connected with mixing homogenizing balancing tank (3); Mixing homogenizing balancing tank (3) also has two entrances: an entrance communicates with running water pipe (3.1), and another entrance communicates with the reverse osmosis produced water out of the reverse osmosis concentrated compression apparatus of high pressure (8); Mixing homogenizing balancing tank (3) outlet is connected by the entrance of booster pump (4) with high pressure nanofiltration separation device (5); High pressure nanofiltration separation device (5) has two outlets: an outlet is produced water tank (6) with nanofiltration and is connected, and another outlet is connected with lime white configuration device in sulfur removal technology; Nanofiltration is produced water tank (6) outlet and is connected with high pressure reverse osmosis concentrated compression apparatus (8) entrance by elevator pump (7); The reverse osmosis concentrated compression apparatus of high pressure (8) has two outlets: one is reverse osmosis produced water out, is connected with mixing homogenizing balancing tank (3), and another is reverse osmosis concentrated water out, is connected with hypochlorite generator (9); Hypochlorite generator (9) is provided with sodium hypochlorite product floss hole (10).
11. desulfurization wastewater zero-emission according to claim 10 and resource comprehensive treatment for reuse equipment, it is characterised in that the operating pressure of the reverse osmosis concentrated compression apparatus of described high pressure (8) is 50bar to 160bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610174190.8A CN105668860B (en) | 2016-03-24 | 2016-03-24 | Desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610174190.8A CN105668860B (en) | 2016-03-24 | 2016-03-24 | Desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105668860A true CN105668860A (en) | 2016-06-15 |
| CN105668860B CN105668860B (en) | 2018-12-04 |
Family
ID=56215392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610174190.8A Active CN105668860B (en) | 2016-03-24 | 2016-03-24 | Desulfurization wastewater zero-emission and resource comprehensive treatment for reuse method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105668860B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244773A (en) * | 2017-05-25 | 2017-10-13 | 武汉尚源新能环境有限公司 | Zero-discharge process and equipment for desulfurization wastewater treatment and recycling |
| CN108059255A (en) * | 2017-12-27 | 2018-05-22 | 大唐（北京）水务工程技术有限公司 | Dispensing system and method in a kind of processing applied to high magnesium desulfurization wastewater |
| CN114230055A (en) * | 2021-12-24 | 2022-03-25 | 华能山东发电有限公司 | Method for reducing membrane method concentration scaling rate and flux recovery promotion of desulfurization wastewater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003200160A (en) * | 2002-01-09 | 2003-07-15 | Toray Ind Inc | Water making method and water making apparatus |
| CN1564706A (en) * | 2001-10-03 | 2005-01-12 | 阿克佐诺贝尔股份有限公司 | Method for preventing scaling of membranes in a one-step membrane process |
| CN201762204U (en) * | 2010-07-23 | 2011-03-16 | 深圳市能源环保有限公司 | Wastewater treatment system of power plant |
| WO2012019274A1 (en) * | 2010-08-13 | 2012-02-16 | Hatch Ltd. | Process and facility to treat contaminated process water |
| CN103979729A (en) * | 2014-05-30 | 2014-08-13 | 西安西热水务环保有限公司 | Desulfurization waste water recycling and zero discharge system and method |
| 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 |
| CN105314773A (en) * | 2014-07-10 | 2016-02-10 | 王辛平 | Wet desulphurization wastewater recycling method and device |
| CN205500983U (en) * | 2016-03-24 | 2016-08-24 | 武汉尚远环保技术有限公司 | Zero release of desulfurization waste water and resource integrated treatment retrieval and utilization equipment |
-
2016
- 2016-03-24 CN CN201610174190.8A patent/CN105668860B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564706A (en) * | 2001-10-03 | 2005-01-12 | 阿克佐诺贝尔股份有限公司 | Method for preventing scaling of membranes in a one-step membrane process |
| JP2003200160A (en) * | 2002-01-09 | 2003-07-15 | Toray Ind Inc | Water making method and water making apparatus |
| CN201762204U (en) * | 2010-07-23 | 2011-03-16 | 深圳市能源环保有限公司 | Wastewater treatment system of power plant |
| WO2012019274A1 (en) * | 2010-08-13 | 2012-02-16 | Hatch Ltd. | Process and facility to treat contaminated process water |
| CN103979729A (en) * | 2014-05-30 | 2014-08-13 | 西安西热水务环保有限公司 | Desulfurization waste water recycling and zero discharge system and method |
| CN105314773A (en) * | 2014-07-10 | 2016-02-10 | 王辛平 | Wet desulphurization wastewater recycling method and device |
| 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 |
| CN205500983U (en) * | 2016-03-24 | 2016-08-24 | 武汉尚远环保技术有限公司 | Zero release of desulfurization waste water and resource integrated treatment retrieval and utilization equipment |
Non-Patent Citations (1)
| Title |
|---|
| 殷娜等: "膜法处理焦化脱硫废液的工艺研究", 《膜科学与技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244773A (en) * | 2017-05-25 | 2017-10-13 | 武汉尚源新能环境有限公司 | Zero-discharge process and equipment for desulfurization wastewater treatment and recycling |
| CN108059255A (en) * | 2017-12-27 | 2018-05-22 | 大唐（北京）水务工程技术有限公司 | Dispensing system and method in a kind of processing applied to high magnesium desulfurization wastewater |
| CN114230055A (en) * | 2021-12-24 | 2022-03-25 | 华能山东发电有限公司 | Method for reducing membrane method concentration scaling rate and flux recovery promotion of desulfurization wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105668860B (en) | 2018-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105668893B (en) | A kind of high saliferous Industry Waste moisture salt Zero discharging system | |
| CN103304104B (en) | Zero-sewage discharge novel process for development of natural gas fields | |
| CN104276711A (en) | Reverse osmosis membrane treatment process for recycling industrial sewage and realizing zero release | |
| CN105084587A (en) | Treatment method and equipment of high-salt waste water | |
| CN105314783A (en) | Coal-fired power plant desulfurization waste water zero-emission treating technology and device special for treating technology | |
| US3939070A (en) | Method and installation for the treatment of waste water to form useful water | |
| CN107915354A (en) | A kind of desulfurization wastewater zero-emission and resource utilization device and method | |
| CN104230124B (en) | Coal chemical industry wastewater zero emission technique and specific equipment thereof | |
| CN105461143A (en) | Power plant desulfurization waste water membrane concentrating process and equipment | |
| CN206666313U (en) | A kind of desulfurization wastewater zero-discharge treatment system | |
| CN105523666A (en) | Strengthened pretreatment system for high-salt-content industrial wastewater and production process of strengthened pretreatment system | |
| CN104402156A (en) | Coal chemical high brine purification, evaporative crystallization and recovery technology and special-purpose equipment | |
| CN105461144A (en) | Method and device for treating desulfurization waste water | |
| CN205575837U (en) | Processing system of lime stone / lime - gypsum method flue gas desulfurization waste water | |
| CN108178408A (en) | A kind of device and method of desulfurization wastewater processing | |
| CN107381881A (en) | The method of wastewater treatment and processing unit of desulfurization wastewater zero-emission | |
| CN205500983U (en) | Zero release of desulfurization waste water and resource integrated treatment retrieval and utilization equipment | |
| CN109851139A (en) | High-salt wastewater softening and enrichment facility and method | |
| CN105668860A (en) | Desulfurization wastewater zero-emission and resource comprehensive treatment recycling method and equipment | |
| CN105254066A (en) | Treatment device and method capable of achieving waste water zero discharge of power plant with large water volume | |
| CN105347592A (en) | Recycling zero-emission treatment process for desulfurization wastewater | |
| CN112679020B (en) | Low-cost shale gas fracturing flowback fluid treatment system and treatment method | |
| CN104445714B (en) | The peace and quiet waste water high power reuse technology of coal chemical industry and its special purpose device | |
| CN113666556A (en) | Coal-electricity integrated wastewater recycling cooperative treatment method and system | |
| CN206521360U (en) | Desulphurization for Coal-fired Power Plant waste water and Wastewater Form Circulating Cooling Water Zero discharging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 430079 Room 101, floor 2, building 6B, Putian Internet of things innovation and R & D base (phase I), east of Dongyuan West Road and north of Gaoxin Fourth Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN SHANGYUAN XINNENG ENVIRONMENT CO.,LTD. Address before: 430070 Hubei city of Wuhan province Kuanshan East Lake Development Zone Avenue East Street to the north of Wuhan, pioneering Optics Valley international business center A building 25 floor of No. 2509 Patentee before: WUHAN SHANGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: 430223 1st floor, test center building, Luther environmental protection industry R & D base, No. 51, Jiulonghu street, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Luther Shangyuan Water Treatment Technology Co.,Ltd. Address before: 430079 Room 101, 2nd floor, building 6B, Putian IOT innovation and R & D base (phase I), east of Dongyuan West Road and north of Gaoxin 4th Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN SHANGYUAN XINNENG ENVIRONMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230410 Address after: 430079 Room 101, second floor, building 6B, Putian IOT innovation and R & D base (phase I), east of Dongyuan West Road and north of Gaoxin 4th Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN SHANGYUAN XINNENG ENVIRONMENT CO.,LTD. Address before: 430223 1st floor, test center building, Luther environmental protection industry R & D base, No. 51, Jiulonghu street, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan Luther Shangyuan Water Treatment Technology Co.,Ltd. |