CN106830553A - A kind of salt-containing waste water treating device and processing method - Google Patents
A kind of salt-containing waste water treating device and processing method Download PDFInfo
- Publication number
- CN106830553A CN106830553A CN201710149088.7A CN201710149088A CN106830553A CN 106830553 A CN106830553 A CN 106830553A CN 201710149088 A CN201710149088 A CN 201710149088A CN 106830553 A CN106830553 A CN 106830553A
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- China
- Prior art keywords
- waste water
- spray
- salt
- concentrated water
- enrichment facility
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- 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.)
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Classifications
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- 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
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The invention discloses a kind of salt-containing waste water treating device and processing method, brine waste processing system connects waste water tank, waste water tank and biofilter connect, biofilter and enrichment facility are connected, and enrichment facility further connects concentrated water case, and chemicals dosing plant is further connected with concentrated water case, concentrated water case is connected by high pressure waste water pump and spray-drying installation, the other end and the cyclone dust collectors connection of spray-drying installation, one end of demister and cyclone dust collectors are connected, the other end and the air-introduced machine connection of demister.Easy to operate, low energy consumption of the invention and low cost, using existing equipment, while economizing on resources with fund, newly-increased equipment component can reach zero-emission purpose, and cost of reducing investment outlay, concentrated water is evaporated into spray-drying installation, fresh water is back to use other systems, can save a large amount of processing costs.Meanwhile, the Nacl that spray drying assembling device is dried to obtain is sold.
Description
Technical field
The present invention relates to environmental protection technical field, and in particular to a kind of salt-containing waste water treating device and processing method.
Background technology
At present, the waste water that many industries are produced all features with brine waste, such as thermal power plant are generally taken off using wet method
The desulfurization wastewater that sulphur FGD devices desulphurization system is produced；Bottom liquid that the techniques such as chemical industry synthesis are produced etc..Brine waste can contain
Various salts, wherein be no lack of heavy metal ion, or some anion for being limited by discharging standards, it is impossible to directly arrange
Put.Salinity in other brine waste has with certain value, can recycle.And brine waste generally influences biochemistry
System operation, simultaneous with corrosivity or can speed up the corrosion of system metal parts.With very big harmfulness, while again
With intractability very high.
In response to the minimum discharge of country, zero-emission and waste water recycling etc. are called, and many thermal power plants, chemical plant etc. require
Designed by full factory's waste water zero emission.Such as thermal power plant generally uses three traditional header techniques, it is impossible to process chlorion, while
Most desulfurization wastewater can not process up to standard.Still contain sodium chloride, sulphur by the desulfurization wastewater after three header PROCESS FOR TREATMENTs
The salts such as sour sodium, or even have the organic matters such as oils, still can not meet requirement.Such case is also appeared in the middle of other industry.
The content of the invention
In order to solve the above problems, the present invention provides a kind of salt-containing waste water treating device and processing method, is set using original
It is standby, economize on resources while with fund, it is proper current most of coal-fired that newly-increased equipment component can reach zero-emission purpose
The present situation of power plant, chemical plant, ceramics factory etc., and cost of reducing investment outlay, concentrated water are evaporated into spray-drying installation, fresh water
Original system or discharge are back to use, a large amount of processing costs can be saved.Meanwhile, the Nacl that spray drying assembling device is dried to obtain,
Can be sold as Nacl.
To achieve these goals, the technical solution adopted by the present invention is：A kind of salt-containing waste water treating device, including waste water
Case, brine waste treatment original system water side connection waste water tank, the waste water tank and biofilter connection, biofilter and concentration
Device is connected, and enrichment facility further connects concentrated water case, and chemicals dosing plant is further connected with concentrated water case, and concentrated water case is useless by high pressure
Water pump and spray-drying installation connection, the other end and the cyclone dust collectors connection of spray-drying installation, one end of demister and rotation
Wind deduster is connected, the other end and the air-introduced machine connection of demister.
In line with existing equipment is utilized as far as possible, economize on resources while with fund, newly-increased equipment component can reach zero-emission
The present situation of the enterprise such as the proper current most of coal-burning power plant of purpose and chemical plant, and cost of reducing investment outlay.During treatment, contain
The water of salt waste water is larger, although actual treatment amount is slightly smaller, but this water is dried for Direct spraying and still compared
It is big, it is necessary to consume substantial amounts of heat energy, with operating cost higher；Larger equipment is needed simultaneously, be increased and invested into
This.Therefore first concentrated before spray drying.Minimizing treatment is carried out to brine waste using enrichment facility, it is dry that concentrated water enters spraying
Dry equipment is evaporated, and fresh water is then back to use other systems or discharge, can save a large amount of processing costs.Meanwhile, spray drying
The Nacl that equipment is dried to obtain, can sell as Nacl.
Preferably, it is additionally provided with pretreating device between the waste water tank and enrichment facility.
Any of the above-described scheme is preferably, and the spray-drying installation is spray dryer.
Any of the above-described scheme is preferably, and the chemicals dosing plant is NaOH chemicals dosing plant or calcium hydroxide chemicals dosing plant
In any one, or other add single or mixed-alkali medicament chemicals dosing plant.
Any of the above-described scheme is preferably, and agitator is equipped with the waste water tank and concentrated water case.
The present invention also provides a kind of processing method of salt-containing waste water treating device, and brine waste enters waste water tank, by preceding
After processing unit treatment, concentrated into enrichment facility after reaching suitable concentration of suspension and hardness, after enrichment facility concentration
Obtain concentrated water and fresh water；Fresh water is back to use other systems or discharge, and concentrated water enters concentrated water case, at the same by chemicals dosing plant adjust PH to
After alkalescence, spray-drying installation is pumped into by high pressure waste water pump carry out spray drying and operate；Spray-drying installation is changed using flue gas as thermal source
The flue gas obtained after heat separates the crystal salt that flies upward by cyclone dust collectors, steam removed by demister after again by air-introduced machine
Injection flue.
Any of the above-described scheme is preferably, the chemicals dosing plant by add NaOH and/or calcium hydroxide or its
The PH of his basic agent regulation concentrated water is in the range of 8-13.
The present invention also provides a kind of processing method of salt-containing waste water treating device, and brine waste enters waste water tank, by life
Thing filter tank removes COD under conditions of high salt using microorganism, reaches the inflow requirement of pretreating device；By pretreating device
After treatment, concentrated water is obtained after concentrating into enrichment facility concentration, enrichment facility after reaching suitable concentration of suspension and hardness
And fresh water；Fresh water is back to use other systems or discharge, and concentrated water enters concentrated water case, while PH to alkalescence is adjusted by chemicals dosing plant, by
High pressure waste water pump pumps into spray-drying installation and carries out spray drying operation；Spray-drying installation is obtained using flue gas as thermal source after heat exchange
Flue gas separate the crystal salt that flies upward by cyclone dust collectors, steam injects cigarette by air-introduced machine again after being removed by demister
Road.The mixed salt for obtaining is used as industrial salt treatment.
Any of the above-described scheme is preferably, and chemicals dosing plant is by adding NaOH and/or calcium hydroxide or other alkali
Property medicament regulation concentrated water PH in the range of 8-13.
The beneficial effects of the invention are as follows：A kind of salt-containing waste water treating device of present invention offer and processing method, processing unit,
Including waste water tank, the waste water tank and enrichment facility are connected, and enrichment facility further connects fresh-water tank and concentrated water case, dosing dress
Put and further connected with concentrated water case, concentrated water case is connected by high pressure waste water pump and spray-drying installation, spray-drying installation it is another
One end and cyclone dust collectors are connected, and one end of demister and cyclone dust collectors are connected, the other end and the air-introduced machine connection of demister.
Easy to operate, low energy consumption of the invention and low cost, using existing equipment, economize on resources while with fund, increase equipment component newly
Zero-emission purpose, the present situation of the enterprise such as proper current most of coal-burning power plant and chemical plant can be reached, and saves throwing
Money cost, concentrated water is evaporated into spray-drying installation, and fresh water is back to use other systems or discharge, can save a large amount for the treatment of
Cost.Meanwhile, the Nacl that spray drying assembling device is dried to obtain can be sold as Nacl.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present invention；
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of salt-containing waste water treating device, including waste water tank 1, raw wastewater processing system connection waste water tank,
The waste water tank 1 and biofilter 13 connect, and biofilter 13 further connects with enrichment facility 2, biofilter 13 and concentration
Pretreating device 11 is provided between device 2, enrichment facility 2 further connects fresh-water tank 3 and concentrated water case 4, and concentrated water case 4 is used to receive
Concentrated water after the collection concentration of enrichment facility 2.Chemicals dosing plant 5 is further connected with concentrated water case 4, and concentrated water case 4 is entered by high pressure waste water pump 6
One step and spray-drying installation 7 are connected, and concentrated water is pumped into spray-drying installation 7 by high pressure waste water pump 6.Spray-drying installation 7 is one
The material such as macromolecular structure or band coating steel is planted, using flue gas as thermal source, can be in relatively low evaporating temperature (50-350
DEG C) carry out spray drying operation.
Spray-drying installation 7 is from steam as thermal source.The other end and cyclone dust collectors 8 of spray-drying installation 7 are connected,
One end of demister 9 and cyclone dust collectors 8 are connected, and the other end and air-introduced machine 10 of demister 9 are connected.Cyclone dust collectors 8 are used for
The crystal salt that separation is waved with flue gas.Demister 9 is used to remove the steam that flue gas is brought into after spray drying.Air-introduced machine 10 is by flue gas
Refill flue.
Pretreating device 11 is additionally provided between biofilter 13 and enrichment facility 2.Biofilter 13 refers in salinity high
Under the conditions of can process COD to suitable concn with microorganism, reach the biofilter for entering water requirement of subsequent treatment link.It is biological
Filter tank 13 can effectively process dissolved organic matter, have the advantages that the efficient, quantity of slag is few, not dosing.Enrichment facility 2 and pre-treatment
Device 11 refers to that the principle such as electrodialysis system or other application electric drive, infiltration, counter-infiltration can reach what deep or light water was separate
Enrichment facility and its pretreating device, the purpose of the pre-treatment of pretreating device 11 are the concentration of suspension for ensureing to enter concentration systems
Met the requirements with hardness.Concentration systems device 2 obtains concentrated water and fresh water after concentrating, and fresh water is back to use other systems or row
Put.Concentrated water carries out being evaporated operation into spray-drying installation 7.
The spray-drying installation 7 is spray dryer.
Chemicals dosing plant 5 is to ensure that brine waste enters spray-drying installation 7 in the basic conditions, preventing volatile group
Chlorion such as is divided to be escaped in the form of hydrogen chloride in acid condition, into air or etching apparatus.Concentrated water case 4 is additionally provided with and stirs
Mix device 12.
The chemicals dosing plant 5 is any one in NaOH chemicals dosing plant or calcium hydroxide chemicals dosing plant, or other
Add single or mixed-alkali medicament chemicals dosing plant.
Enrichment facility 2 is electrodialysis system or other application electric drive, infiltration, the enrichment facility of principle of reverse osmosis, can
To select electrodialysis system, it is also possible to select the systems such as counter-infiltration, super counter-infiltration, RO, super RO, DTRO.The waste water tank 1
Agitator is equipped with concentrated water case 4, it is ensured that homogeneous.
A kind of processing method of salt-containing waste water treating device, brine waste enters waste water tank, at pretreating device 11
After reason, concentrated into enrichment facility 2 after reaching suitable concentration of suspension and hardness, enrichment facility 2 obtains concentrated water after concentrating
And fresh water；Fresh water to fresh-water tank 3, into concentrated water case 4, adjusted concentrated water by adding NaOH and/or calcium hydroxide by chemicals dosing plant 5
The PH of concentrated water is saved in the range of 8-13, prevents chlorion from being escaped in the form of hydrogen chloride in acid condition, into air or
Etching apparatus, after the regulation PH of chemicals dosing plant 5 to alkalescence, concentrated water is pumped into spray-drying installation 7 by high pressure waste water pump 6 carries out spray drying
Operation；Using flue gas as thermal source, the flue gas obtained after heat exchange separates the crystalline substance for flying upward to spray-drying installation 7 by cyclone dust collectors 8
Body salt, steam removed by demister 9 after again by the injection flue of air-introduced machine 10.
Easy to operate, low energy consumption of the invention and low cost, using existing equipment, economize on resources while with fund, increase newly
Equipment component can reach the present situation of the proper current most of coal-burning power plant of zero-emission purpose, and cost of reducing investment outlay,
Concentrated water is evaporated into spray-drying installation, and fresh water is back to use other systems or discharge, can save a large amount of processing costs.
Meanwhile, the Nacl that spray drying assembling device is dried to obtain can be sold as Nacl.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (7)
1. a kind of salt-containing waste water treating device, including waste water tank, it is characterised in that the connection of brine waste processing system water side is useless
Water tank water end (W.E.) connects waste water tank, and waste water tank and biofilter are connected, and biofilter and enrichment facility are connected, and enrichment facility is further
Connection concentrated water case, chemicals dosing plant is further connected with concentrated water case, and concentrated water case is connected by high pressure waste water pump and spray-drying installation,
The other end and the cyclone dust collectors connection of spray-drying installation, one end of demister and cyclone dust collectors are connected, demister it is another
One end and air-introduced machine are connected.
2. a kind of salt-containing waste water treating device according to claim 1, it is characterised in that the waste water tank and enrichment facility
Between be additionally provided with the pretreating device of biofilter and enrichment facility.
3. a kind of salt-containing waste water treating device according to claim 1, it is characterised in that the spray-drying installation is spray
Mist drier.
4. a kind of salt-containing waste water treating device according to claim 1, it is characterised in that the chemicals dosing plant is hydroxide
Any one in sodium chemicals dosing plant or calcium hydroxide chemicals dosing plant, or other add single or mixed-alkali medicament dosing
Device.
5. a kind of salt-containing waste water treating device according to claim 1, it is characterised in that in the waste water tank and concentrated water case
It is equipped with agitator.
6. a kind of processing method of salt-containing waste water treating device, it is characterised in that brine waste enters waste water tank, by pre-treatment
After device treatment, obtained after concentrating into enrichment facility concentration, enrichment facility after reaching suitable concentration of suspension and hardness
Concentrated water and fresh water；Fresh water is back to use other systems, and concentrated water enters concentrated water case, while after by chemicals dosing plant regulation PH to alkalescence, by
High pressure waste water pump pumps into spray-drying installation and carries out spray drying operation；Spray-drying installation is obtained using flue gas as thermal source after heat exchange
Flue gas separate the crystal salt that flies upward by cyclone dust collectors, steam injects cigarette by air-introduced machine again after being removed by demister
Road.
7. a kind of processing method of salt-containing waste water treating device according to claim 6, it is characterised in that the dosing dress
Put and adjust the PH of concentrated water in the range of 8-13 by adding NaOH and/or calcium hydroxide or other basic agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149088.7A CN106830553A (en) | 2017-03-14 | 2017-03-14 | A kind of salt-containing waste water treating device and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149088.7A CN106830553A (en) | 2017-03-14 | 2017-03-14 | A kind of salt-containing waste water treating device and processing method |
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| Publication Number | Publication Date |
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| CN106830553A true CN106830553A (en) | 2017-06-13 |
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| CN201710149088.7A Pending CN106830553A (en) | 2017-03-14 | 2017-03-14 | A kind of salt-containing waste water treating device and processing method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003569A (en) * | 2014-06-23 | 2014-08-27 | 山东国信环境系统股份有限公司 | Brine waste water processing reusing device and method |
| CN105417817A (en) * | 2015-11-13 | 2016-03-23 | 高境 | System and method for treating high salinity wastewater |
| CN205151986U (en) * | 2015-12-03 | 2016-04-13 | 曾永健 | Zero discharge system of coal fired power plant wet flue gas desulfurization waste water |
| CN205473143U (en) * | 2016-01-18 | 2016-08-17 | 李艳萍 | High salinity wastewater treatment system |
| CN206570147U (en) * | 2017-03-14 | 2017-10-20 | 广东浦华环保科技有限公司 | A kind of salt-containing waste water treating device |
-
2017
- 2017-03-14 CN CN201710149088.7A patent/CN106830553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003569A (en) * | 2014-06-23 | 2014-08-27 | 山东国信环境系统股份有限公司 | Brine waste water processing reusing device and method |
| CN105417817A (en) * | 2015-11-13 | 2016-03-23 | 高境 | System and method for treating high salinity wastewater |
| CN205151986U (en) * | 2015-12-03 | 2016-04-13 | 曾永健 | Zero discharge system of coal fired power plant wet flue gas desulfurization waste water |
| CN205473143U (en) * | 2016-01-18 | 2016-08-17 | 李艳萍 | High salinity wastewater treatment system |
| CN206570147U (en) * | 2017-03-14 | 2017-10-20 | 广东浦华环保科技有限公司 | A kind of salt-containing waste water treating device |
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Application publication date: 20170613 |
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