CN208762332U - Desulfurization wastewater zero-discharge treatment system - Google Patents
Desulfurization wastewater zero-discharge treatment system Download PDFInfo
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- CN208762332U CN208762332U CN201820743902.8U CN201820743902U CN208762332U CN 208762332 U CN208762332 U CN 208762332U CN 201820743902 U CN201820743902 U CN 201820743902U CN 208762332 U CN208762332 U CN 208762332U
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Abstract
The utility model relates to field of industrial waste water treatment, more particularly to waste water from power plant field, it is specifically related to desulfurization wastewater zero-discharge treatment system caused by power plant, comprising: dosing reaction device, TMF membrane module, SCNF film device, UHP RO film device, fresh-water tank, sludge box.Desulfurization wastewater zero-discharge treatment system disclosed in the utility model can form a circulating treating system, and the processing such as desalination, removing heavy metals is repeated in waste water, really realizes zero-emission.It especially include that the system of UHP RO processing component can significantly lower the investment and operating cost of desulfurization wastewater zero discharge treatment meanwhile using the processing system.
Description
Technical field
The utility model relates to field of industrial waste water treatment, more particularly to waste water from power plant field, specifically
It is related to desulfurization wastewater zero-discharge treatment system caused by power plant.
Background technique
Power plant effluent has important strategic importance to the sustainable development of country as industrial wastewater, reuse problem.
The concept of waste water zero emission refers to industry water after reusing, and by this part salt content and pollutant is highly concentrated shortens waste water into
All (99% or more) recycling and reusings, or be recycled after filtering out substance not soluble in water using filter press, nothing is appointed
Factory is discharged in what waste liquid.Factory is discharged in solid form and send rubbish by condensing crystallizing or filters pressing waste residue for salt and pollutant in water
Treatment plant fills or is recycled as useful industrial chemicals.
So-called zero-emission refers to and ad infinitum reduces pollutant and energy source emission up to the activity to zero.Zero-emission, with regard in it
For appearance, first is that control in production process must not oneself energy for generating and resource discharge, be reduced to zero;It is another to be meant that
By those must not oneself energy for giving off, resource make full use of, the final presence for eliminating non-renewable resources and the energy.
Currently used zero-discharge technology includes membrane technology, evaporative crystallization and dry technology and physics, chemistry, biochemistry
Etc. treatment processes.
Power plant desulfurization wastewater compared to other waste water for, have certain particularity.Specifically, desulfurization wastewater one
As have the characteristics that it is following: y water quality is weakly acidic: external pH value variation range is 5. 0 one by one 6. 5, and the country is 4. 01
One 6. 0;(2) suspension content is high, and mass concentration is up to tens of thousands of mg/L;(3) COD, fluoride, heavy metals exceeding standard,
In include the 1st pollutant, such as As, Hg, Pb etc.;(4) salt content is high, containing a large amount of sulfate ion, inferior sulfate radical from
Son and chloride ion, wherein the mass fraction of chloride ion is about 0. 04.
With the promulgation of " water prevention and cure of pollution action plan " (ten, water), country starts to increase the processing power to desulfurization wastewater
Degree, the advanced treating of power plant desulfurization wastewater, zero discharge treatment technology become the focus technology problem and technical research heat of this field
Point.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of new desulfurization wastewater zero-discharge treatment system, realizes desulfurization wastewater
Zero-emission, the purpose of resources sustainable development.
In order to achieve the above-mentioned object of the invention, the invention particularly discloses following technical schemes:
Desulfurization wastewater zero-discharge treatment system, the desulfurization wastewater zero-discharge treatment system include:
Dosing reaction device, the dosing reaction device are made of several reaction chambers, these reaction chambers are successively
It is connected, the input end of the dosing reaction device is connected to the water outlet of three header of desulfurization wastewater；
TMF membrane module, the TMF membrane module are made of TMF film, thickener, TMF water producing tank, and dosing is anti-
Answer the outlet end of device to be connected to TMF film, the outlet end of TMF film is connected to thickener, the other end of thickener with
The connection of TMF water producing tank, forms the pipeline exchanged visits between thickener and TMF water producing tank；
The outlet end of special flow passage nano filter membrance device, TMF water producing tank is connect with special flow passage nano filter membrance device, special flow passage
The outlet end of nano filter membrance device is separately connected three header of super-pressure reverse osmosis membrane apparatus and desulfurization wastewater；
The outlet end of super-pressure reverse osmosis membrane apparatus, the super-pressure reverse osmosis membrane apparatus is respectively connected to super-pressure reverse osmosis
Saturating water producing tank and fresh-water tank；
The outlet end of fresh-water tank, the fresh-water tank is connected at evaporation and crystallization system；
It further include sludge box, the input end of the sludge box is respectively and in dosing reaction device and TMF membrane module
Thickener is connected, and the outlet end of sludge box is connected to outward transport sludge tool.
Preferably, the dosing reaction device is anti-by calcium hydroxide reaction case, sodium hydroxide reaction chamber, sodium carbonate
Case is answered to form.
It is further preferable that the water outlet of three header of desulfurization wastewater is connected to the arrival end of calcium hydroxide reaction case, hydroxide
The outlet end of calcium reaction chamber is connected to the arrival end of sodium hydroxide reaction chamber, and the outlet end of sodium hydroxide reaction chamber is connected to carbonic acid
The outlet end of the arrival end of sodium reaction chamber, sodium carbonate reaction chamber is connected to TMF film as the outlet end of dosing reaction device.
It further include plate and frame filter press, the plate and frame filter press is connected to sludge box as another preferred mode
Between outward transport sludge tool.
Further it is preferable that, for plate and frame filter press there are also a water outlet, it is useless which is connected to desulfurization
Three header of water.
Desulfurization wastewater zero-discharge treatment system disclosed in the utility model can form a circulating treating system,
The processing such as desalination, removing heavy metals is repeated in waste water, really realizes zero-emission.Meanwhile using the processing system,
Especially include super-pressure reverse osmosis treatment component system can significantly lower desulfurization wastewater zero discharge treatment investment and
Operating cost.
Detailed description of the invention
Fig. 1 is desulfurization wastewater zero-discharge treatment system schematic diagram.
Specific embodiment
In order to better understand the present invention, we in conjunction with specific embodiments carry out the present invention further below
It illustrates.
Embodiment 1
Desulfurization wastewater zero-discharge treatment system as shown in Figure 1, the desulfurization wastewater zero-discharge treatment system include:
Dosing reaction device, the dosing reaction device are made of several reaction chambers, in this example, dosing reaction
Device is by calcium hydroxide reaction case 21, sodium hydroxide reaction chamber 22, and sodium carbonate reaction chamber 23 forms.As shown in fig. 1, hydrogen-oxygen
Change calcium reaction chamber 21, sodium hydroxide reaction chamber 22, sodium carbonate reaction chamber 23 is sequentially connected, three header 1 of desulfurization wastewater as shown in Figure 1
Water outlet be connected to the arrival end of calcium hydroxide reaction case 21, the outlet end of calcium hydroxide reaction case 21 is connected to sodium hydroxide
The arrival end of reaction chamber 22, the outlet end of sodium hydroxide reaction chamber 22 are connected to the arrival end of sodium carbonate reaction chamber 23, sodium carbonate
The outlet end of reaction chamber 23 is connected to TMF film 2 as the outlet end of dosing reaction device；
TMF membrane module, the TMF membrane module are made of TMF film 2, thickener 3, TMF water producing tank 4, dosing reaction device
Outlet end be connected to TMF film 2, the outlet end of TMF film 2 is connected to thickener 3, the other end and TMF water producing tank 4 of thickener 3
Connection, forms the pipeline exchanged visits, as shown in Figure 1, passes through in thickener 3 between thickener 3 and TMF water producing tank 4
The concentrate for crossing concentration can enter TMF water producing tank 4, while the concentrate in TMF water producing tank 4 can also be back to thickener 3
In, carry out secondary concentration;Special flow passage nano filter membrance device 5, the outlet end of TMF water producing tank 4 and special flow passage nano filter membrance device 5
Connection, the outlet end of special flow passage nano filter membrance device 5 is separately connected three header 1 of super-pressure reverse osmosis membrane apparatus 6 and desulfurization wastewater;
The outlet end of super-pressure reverse osmosis membrane apparatus 6, the super-pressure reverse osmosis membrane apparatus 6 is respectively connected to super-pressure reverse osmosis produced water
Case 7 and fresh-water tank 8；
The outlet end of fresh-water tank 8, the fresh-water tank 8 is connected at evaporation and crystallization system 9；
It further include sludge box 10, the input end of the sludge box 10 is respectively and in dosing reaction device and TMF membrane module
Thickener is connected, in embodiment 1, it is seen that at the input end of sludge box 10 and the sludge outlet of sodium hydroxide reaction chamber 22
Connection, while the outlet end of sludge box 10 is connected to outward transport sludge tool ll.
Preferably, in this example we have seen that further including plate and frame filter press 12, the plate and frame filter press 12 is connected to dirt
Between mud box 10 and outward transport sludge tool 11.Special attention Fig. 1, it is seen that still further preferably sheet frame pressure in this example
There are also a water outlets for filter 12, which is connected to three header 1 of desulfurization wastewater.
By preliminary pretreated desulfurization wastewater, into dosing reaction device, and respectively in calcium hydroxide reaction case, hydrogen
Dosing reaction is carried out in sodium oxide molybdena reaction chamber, sodium carbonate reaction chamber, the waste water after agent-feeding treatment is by TMF film, through TMF film
After processing, into thickener, waste water is separated into solid sludges and concentration waste water in thickener, and solid sludges pass through sludge
Case is simultaneously transported outward after plate and frame filter press secondary treatment, and concentration waste water travels further into TMF water producing tank, and when needed, which produces water
Waste water in case then can be directly entered spy by TMF water producing tank to be concentrated again in secondary back to thickener, but if not needing
Different runner nano filter membrance device, after nanofiltration is handled, nanofiltration concentrated water is returned in three header of desulfurization wastewater, is handled again, is passed through
It crosses nanofiltration treated nanofiltration and produce water and enter in super-pressure reverse osmosis membrane apparatus, and formed by super-pressure reverse osmosis membrane processing
Fresh water, flows into fresh-water tank, and another part is then used as super-pressure reverse osmosis membrane processing to produce water and collects reuse.Fresh water after treatment
It goes successively in evaporation and crystallization system, subsequent processing is carried out using evaporative crystallization method.
It is worth noting that, after solid sludges pass through plate and frame filter press secondary treatment, it is possible to create sewage, these sewage
We are handled by being passed back into three header of desulfurization wastewater again.
For in dosing reaction device, the sludge especially generated in the processing of sodium hydroxide reaction chamber in this example is same
Sample collection is handled in sludge box.
It should be pointed out that for those skilled in the art, before not departing from the utility model principle
It puts, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection scope of the utility model.
Claims (5)
1. desulfurization wastewater zero-discharge treatment system, which is characterized in that the desulfurization wastewater zero-discharge treatment system includes:
Dosing reaction device, the dosing reaction device are made of several reaction chambers, these reaction chambers are sequentially connected, described
The input end of dosing reaction device is connected to the water outlet of three header of desulfurization wastewater；
TMF membrane module, the TMF membrane module are made of TMF film, thickener, TMF water producing tank, the outlet end of dosing reaction device
Be connected to TMF film, the outlet end of TMF film is connected to thickener, and the other end of thickener is connect with TMF water producing tank, thickener with
The pipeline exchanged visits is formed between TMF water producing tank；
The outlet end of special flow passage nano filter membrance device, TMF water producing tank is connect with special flow passage nano filter membrance device, special flow passage nanofiltration
The outlet end of film device is separately connected three header of super-pressure reverse osmosis membrane apparatus and desulfurization wastewater；
Super-pressure reverse osmosis membrane apparatus, it is reverse osmosis produced that the outlet end of the super-pressure reverse osmosis membrane apparatus is respectively connected to super-pressure
Water tank and fresh-water tank；
The outlet end of fresh-water tank, the fresh-water tank is connected at evaporation and crystallization system；
Further include sludge box, the input end of the sludge box respectively with the thickener phase in dosing reaction device and TMF membrane module
Even, the outlet end of sludge box is connected to outward transport sludge tool.
2. desulfurization wastewater zero-discharge treatment system according to claim 1, it is characterised in that: the dosing reaction device by
Calcium hydroxide reaction case, sodium hydroxide reaction chamber, sodium carbonate reaction chamber composition.
3. desulfurization wastewater zero-discharge treatment system according to claim 2, it is characterised in that: three header of desulfurization wastewater goes out
The mouth of a river is connected to the arrival end of calcium hydroxide reaction case, and the outlet end of calcium hydroxide reaction case is connected to sodium hydroxide reaction chamber
Arrival end, the outlet end of sodium hydroxide reaction chamber are connected to the arrival end of sodium carbonate reaction chamber, the outlet end of sodium carbonate reaction chamber
Outlet end as dosing reaction device is connected to TMF film.
4. desulfurization wastewater zero-discharge treatment system according to claim 1, it is characterised in that: it further include plate and frame filter press,
The plate and frame filter press is connected between sludge box and outward transport sludge tool.
5. desulfurization wastewater zero-discharge treatment system according to claim 1, it is characterised in that: there are also one to go out for plate and frame filter press
Water end (W.E.), the water outlet are connected to three header of desulfurization wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743902.8U CN208762332U (en) | 2018-05-18 | 2018-05-18 | Desulfurization wastewater zero-discharge treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743902.8U CN208762332U (en) | 2018-05-18 | 2018-05-18 | Desulfurization wastewater zero-discharge treatment system |
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| CN208762332U true CN208762332U (en) | 2019-04-19 |
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| CN201820743902.8U Active CN208762332U (en) | 2018-05-18 | 2018-05-18 | Desulfurization wastewater zero-discharge treatment system |
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Effective date of registration: 20211029 Address after: 210000 room 8416, 4th floor, Zhoudao Jiayuan neighborhood center, 86-1 Hongxing street, Jiangxinzhou, Jianye District, Nanjing, Jiangsu Province Patentee after: Guoneng langxinming Nanjing Environmental Protection Technology Co.,Ltd. Address before: No.68, Jiangdong Street, Nanxi, Jianye District, Nanjing City, Jiangsu Province, 210000 Patentee before: BEIJING LUCENCY ENVIRO TECH Co.,Ltd. NANJING BRANCH |