CN106517591A - Reverse osmosis concentration treatment system and method - Google Patents
Reverse osmosis concentration treatment system and method Download PDFInfo
- Publication number
- CN106517591A CN106517591A CN201611159234.6A CN201611159234A CN106517591A CN 106517591 A CN106517591 A CN 106517591A CN 201611159234 A CN201611159234 A CN 201611159234A CN 106517591 A CN106517591 A CN 106517591A
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- water
- reverse osmosis
- activated carbon
- mud
- electroless plating
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 175
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000006243 chemical reaction Methods 0.000 claims abstract description 65
- 230000008569 process Effects 0.000 claims abstract description 28
- 239000000701 coagulant Substances 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 25
- 230000001112 coagulating effect Effects 0.000 claims abstract description 17
- 238000005189 flocculation Methods 0.000 claims description 57
- 230000016615 flocculation Effects 0.000 claims description 56
- 239000010802 sludge Substances 0.000 claims description 46
- 238000005345 coagulation Methods 0.000 claims description 39
- 230000015271 coagulation Effects 0.000 claims description 39
- 239000000843 powder Substances 0.000 claims description 34
- 238000001179 sorption measurement Methods 0.000 claims description 32
- 238000007772 electroless plating Methods 0.000 claims description 29
- 238000010992 reflux Methods 0.000 claims description 14
- 239000011541 reaction mixture Substances 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000005352 clarification Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 17
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 17
- 239000011574 phosphorus Substances 0.000 abstract description 17
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 15
- 230000003311 flocculating effect Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000001556 precipitation Methods 0.000 abstract description 7
- 239000012141 concentrate Substances 0.000 abstract description 4
- 230000000274 adsorptive effect Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 230000008676 import Effects 0.000 description 25
- 239000000203 mixture Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000004821 distillation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 239000003403 water pollutant Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical class [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000004531 microgranule Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- -1 wherein Substances 0.000 description 1
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
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a reverse osmosis concentration treatment system and method; the system comprises a powdered activated carbon adsorbing reactor, a coagulating device, a flocculating device and a mud-water separation device; the powdered activated carbon adsorbing reactor is used for receiving reverse osmosis concentrate and powdered activated carbon and mixing and reacting the same; the coagulating device is connected to the powdered activated carbon adsorbing reactor and is used for receiving a coagulating agent and reaction mixed liquid that is from the powdered activated carbon adsorbing reactor; the flocculating device is connected to the coagulating device and is used for receiving a flocculating agent and reaction mixed liquid that is from the coagulating device; the mud-water separation device is connected to the flocculating device and is used for receiving reaction mixed liquid that is from the flocculating device, and carrying out mud-water separation. The process of adsorptive reaction precipitation by activated carbon, coagulating, and flocculating is utilized, COD value and ammonia nitrogen and total phosphorus contents in reverse osmosis concentrate are effectively decreased, and clarified water reaching the level 1 emission standard is obtained.
Description
Technical field
The present invention relates to technical field of sewage, is specifically related to a kind of reverse osmosis thick water treatment system and process side
Method.
Background technology
With the extensive application and development of membrane process, it is all that reverse osmosis technology is increasingly becoming petrochemical industry, electric power, metallurgy, pharmacy etc.
Conglomerate sewage disposal and the one preferred technique of circulation water depth Treatment for Reuse.However, the actual aquifer yield of general reverse osmosis process
Less than 75%, while about 25% or so reverse osmosis concentrated water can be produced, the Organic substance of higher concentration, inorganic in concentrated water, is usually contained
Thing, ammonia nitrogen class material, solution colourity is big, salinity is high, biodegradability is poor, therefore reverse osmosis concentrated water is always work difficult to deal with
One of industry waste water.
At present, mainly have following several to the method for reverse osmosis concentrated water process both at home and abroad：
(1) circumfluence method：RO concentrate recirculations can improve the response rate, increase membrane surface flushing flow velocity, reduce dirty stifled；
(2) industrial water is made in reuse：Due to no suspended substance in RO concentrated waters, containing antisludging agent and there is pressure, can be used as filtering system
The backwashing water of system, water in dust removal, rinsing dusts and drags water, cooling water；Or raw water recovery is mixed into after simple process；
(3) recycling：Can be produced using overbottom pressure using water turbine supercharger, work(exchanger and pressure exchanger etc.
Energy；The concentrated water of seawater desalting plant is used for salt manufacturing, can save salt pan, and shortening is evaporated brine the cycle；Suitably blend after pretreatment, can be used for sea
Product cultivating；
(4) distillation and concentration：Film distillation technology is a new technique, can be returned concentrated water as much as possible using the temperature difference at ambient pressure
Receive (the response rate>Or even crystallization 95%)；
(5) directly or indirectly discharge.
But there is certain limitation in said method：(1) though circumfluence method can improve the response rate, it is only to concentrate again,
Its concentrated water pollutant for producing can be higher；(2) industrial water or the utilization of resources are made in reuse, because being limited by emissions requirements, uncomfortable
In all-round popularization；(3) distillation and concentration, which is relatively costly, and economic, high-quality dewatering microporous film not yet researches and develops maturation at present；
(4) directly discharge can produce pollution to soil, surface water, ocean etc.；If entering municipal wastewater response system, too high total dissolving
Property growth of the solid to activated sludge is also very unfavorable.
The content of the invention
In order to solve problem above, the present invention provides technical scheme below：
A kind of reverse osmosis thick water treatment system, including：Powder electroless plating reaction unit, coagulation device, flocculation plant
And device for separating mud and water；
Powder electroless plating reaction unit, for receiving reverse osmosis concentrated water and Powdered Activated Carbon, so that the two mixing is simultaneously
Reaction；
Coagulation device, is connected with the powder electroless plating reaction unit, for receiving from the Powdered Activated Carbon
The reaction mixture and coagulant of adsorption reaction device, so that the two mixes and reacts；
Flocculation plant, is connected with the coagulation device, for receiving reaction mixture and wadding from the coagulation device
Solidifying agent, so that the two mixes and reacts；
Device for separating mud and water, is connected with the flocculation plant, for receiving the reaction mixture from the flocculation plant,
And carry out mud-water separation.
Further, stirring is equipped with inside the powder electroless plating reaction unit, coagulation device, flocculation plant
Device, for being mixed.
Further, the device for separating mud and water is inclined-plate clarifying basin or tube settler.
Further, the reverse osmosis thick water treatment system also includes that the connection device for separating mud and water is lived with the powder
The reflux pipe of property charcoal adsorption reaction device.
Further, mud position survey meter is provided with the device for separating mud and water.
A kind of method for carrying out reverse osmosis concentrated water process using above-mentioned response system, comprises the steps：
Step 1：Powder electroless plating process：By pending concentrated water by introducing activated carbon adsorption reaction unit, while
Addition Powdered Activated Carbon, is sufficiently stirred for carrying out activated carbon adsorption；
Step 2：Coagulating treatment, the mixed liquor after powder electroless plating process is introduced in the coagulation device,
Add coagulant simultaneously, to carry out coagulating treatment；
Step 3, flocculation treatment are carried out being sent in the flocculation plant by the mixed liquor after coagulating treatment at flocculation
Reason；
Step 4：Mud-water separation process, by by flocculation treatment after mixed liquor send into device for separating mud and water carry out sludge with
The separation of primary water.
Further, also including step 5：The sludge that step 4 is isolated is transported to into activated carbon adsorption by reflux pipe
In reaction unit.
Further also include step 5：The sludge that step 4 is isolated quantitatively is transported to activated carbon suction by reflux pipe
In reaction enclosure device, and the mud position detected according to mud position survey meter and sludge reflux amount, remainder is passed through into sludge pipe
Road is quantitatively outer to arrange.
Further, the coagulant is aluminium polychlorid or poly-ferric chloride.
Further, the flocculant is polyacrylamide.
Beneficial effect：(1) present invention is by first with powder electroless plating reaction precipitation, then carrying out coagulation-flocculation
Technique, effectively eliminate organic pollution in reverse osmosis concentrated water, ammonia nitrogen and total phosphorus, first discharge standard must be reached
Primary water；(2) by the Powdered Activated Carbon in device for separating mud and water is back in activated carbon adsorption reaction unit, both improve
The utilization rate of medicament, while and reducing sludge yield；(3) by installing mud position survey meter, quantified according to mud position detection event
Sludge reflux amount and output, the utilization rate of medicament is being improve, while reducing sludge yield, follow-up reverse osmosiss is being in turn ensure that
The treatment effect of concentrated water.
Description of the drawings
Fig. 1 is the water treatment process schematic diagram of reverse osmosis thick water treatment system described in the first embodiment of the invention；
Fig. 2 is the water treatment process schematic diagram of reverse osmosis thick water treatment system described in second embodiment of the invention.
Specific embodiment
With reference to specific embodiment and embodiment, the present invention will be further described, but the present invention be not limited to it is following
Specific embodiment and embodiment.
As shown in figure 1, the first embodiment of the present invention provides a kind of reverse osmosis thick water treatment system, including：Powder
Last activated carbon adsorption reaction unit, coagulation device, flocculation plant and device for separating mud and water；
Powder electroless plating reaction unit, for receiving reverse osmosis concentrated water and Powdered Activated Carbon, so that the two mixing is simultaneously
Reaction, which includes including concentrated water import and mixture export；
Coagulation device, is connected with the powder electroless plating reaction unit, for receiving from the Powdered Activated Carbon
The reaction mixture and coagulant of adsorption reaction device, so that the two mixes and reacts, which includes mixed liquor import and mixed liquor
Outlet；
Flocculation plant, is connected with the coagulation device, for receiving reaction mixture and wadding from the coagulation device
Solidifying agent, so that the two mixes and reacts, which includes mixed liquor import and mixture export；
Device for separating mud and water, is connected with the flocculation plant, for receiving the reaction mixture from the flocculation plant,
And mud-water separation is carried out, which includes mixed liquor import, pure water inlet and sludge outlet, and the pure water inlet is externally connected with pure water pipe
Road, for primary water is discharged, the sludge outlet is connected with sludge pipeline, for sludge flco is discharged.
Agitator is equipped with inside the powder electroless plating reaction unit, coagulation device, flocculation plant, make concentrated water with
Powdered Activated Carbon, coagulant, flocculant are more fully contacted, while making reacted mixed liquor in flow regime, are easy to defeated
Send.
Selectable, the device for separating mud and water can select settler generally in the art, for sludge and primary water
Separation, can for example be inclined-plate clarifying basin or tube settler.
Preferably, the coagulation device and flocculation plant can also be connected with chemicals dosing plant, and chemicals dosing plant can select this area
General medicament adding device, for adding the water treatment agent with precipitation, clarification, separating effect, including but not limited to wads a quilt with cotton
The water treatment agents such as solidifying agent, coagulant, flocculation aid.
Reverse osmosis concentrated water before the treatment agent that do not add water, such as coagulant and flocculant, colloid in water and tiny outstanding
Very light weight of floating particles itself, is done random Brownian movement by the collision of the molecular thermalmotion of water.Granule is all carried together
Property electric charge, electrostatic repulsion between them prevents closer to each other between microgranule and aggregates into larger granule；And add in water successively
After entering coagulant and flocculant, there is charge neutrality with the colloid and discrete particles of float, form wadding grain sedimentation, and settling
In journey, they collide with each other cohesion, and its size and quality constantly become big, and heavy speed is continuously increased.Floccule body has powerful absorption affinity,
Float can not only be adsorbed, moreover it is possible to absorbed portion antibacterial and dissolved matter.
A kind of method for carrying out reverse osmosis concentrated water process using above-mentioned response system, comprises the following steps：
(1) powder electroless plating is processed：Pending reverse osmosis concentrated water is introduced into activated carbon adsorption by concentrated water import anti-
Device is answered, and under the quick mixing of agitator, is added powder electroless plating agent, Powdered Activated Carbon is made with pending concentrated water
Generation adsorption reaction precipitation is fully contacted, to remove most of organic pollutants and ammonia nitrogen, the COD value and ammonia nitrogen for reducing concentrated water contains
Amount, wherein, those skilled in the art can select appropriate Powdered Activated Carbon, the mesh of such as Powdered Activated Carbon according to the present invention
Number can be 50-300, and the mesh number of Powdered Activated Carbon is big, and absorbability is higher, and effect is more notable, and the dosage of activated carbon can be with
The practical situations such as the content according to water pollutant are selected, for example, can be 450-500mg/L；
(2) coagulating treatment：Jing after powder electroless plating process, the mixed liquor in adsorbent equipment, i.e. adsorption reaction are produced
Precipitate and concentrated water, by mixture export discharge and by coagulation device mixed liquor import enter coagulation device in, in coagulation
There is coagulating sedimentation reaction in the pollutant in dosing coagulant in device, with Powdered Activated Carbon and concentrated water, form flco, while removing
Total phosphorus is removed, total phosphorus content is reduced；Wherein, the type and concentration of coagulant can be selected according to actual needs, for example can be with
For aluminium polychlorid, ferric chloride, poly-ferric chloride, aluminum sulfate, ferrous sulfate, aluminium potassium sulfate (Alumen), sodium aluminate or sulphuric acid
Ferrum etc., the concentration of coagulant can be 15-20mg/L；
(3) flocculation treatment, Jing after coagulant process, the mixed liquor in coagulation device is discharged by mixture export and by flocculating
The mixed liquor import of device is entered in flocculation plant, and flocculant is added in flocculation plant carries out flocculation reaction, makes flco continuous
Increase, in order to mud-water separation, and further reduces the COD value and total phosphorus, the content of ammonia nitrogen in concentrated water；Wherein, flocculant
Type and concentration can be selected according to actual needs, can for example be polyacrylic acid, sodium polyacrylate, calcium polyacrylate (CPA)
Or polyacrylamide etc., the concentration of flocculant can be 0.5-1mg/L；
(4) mud-water separation is processed：Mixed liquor Jing after flocculation treatment is discharged and by mud from the mixture export of flocculation plant
The mixed liquor import of water separation device carries out the separation of sludge and primary water into device for separating mud and water, and the sludge isolated passes through
Arrange outside sludge pipeline, primary water is by arranging outside water pipeline.
As shown in Fig. 2 second embodiment of the present invention provides a kind of reverse osmosis water response system, including：Powder
Activated carbon adsorption reaction unit, coagulation device, flocculation plant and device for separating mud and water；
Powder electroless plating reaction unit, for receiving reverse osmosis concentrated water and Powdered Activated Carbon, so that the two mixing is simultaneously
Reaction, which includes including concentrated water import and mixture export；
Coagulation device, is connected with the powder electroless plating reaction unit, for receiving from the Powdered Activated Carbon
The reaction mixture and coagulant of adsorption reaction device, so that the two mixes and reacts, which includes mixed liquor import and mixed liquor
Outlet；
Flocculation plant, is connected with the coagulation device, for receiving reaction mixture and wadding from the coagulation device
Solidifying agent, so that the two mixes and reacts, which includes mixed liquor import and mixture export；
Device for separating mud and water, is connected with the flocculation plant, for receiving the reaction mixture from the flocculation plant,
And mud-water separation is carried out, which includes mixed liquor import, pure water inlet and sludge outlet, and the pure water inlet is externally connected with pure water pipe
Road, for primary water is discharged, the sludge outlet is connected with sludge pipeline, for sludge flco is discharged.
Wherein, the reverse osmosis thick water treatment system also includes the connection device for separating mud and water and the Powdered Activated Carbon
The reflux pipe of adsorption reaction device.
Agitator is equipped with inside the powder electroless plating reaction unit, coagulation device, flocculation plant, make concentrated water with
Powdered Activated Carbon, coagulant, flocculant are more fully contacted, while making reacted mixed liquor in flow regime, are easy to defeated
Send.
Selectable, the device for separating mud and water can select settler generally in the art, for sludge and primary water
Separation, can for example be inclined-plate clarifying basin or tube settler.
Preferably, mud position survey meter is provided with the device for separating mud and water, the mud position detected according to mud position survey meter
Just, and sludge capacity of returns conditioning of mud outer discharge capacity so that in device for separating mud and water have suitable sludge quantity, really
Protect optimal concentrated water and process operating point；Wherein it is possible to the factor such as utilization rate according to activated carbon is determining the capacity of returns of sludge.It is logical
Quantization sludge reflux amount and outer discharge capacity are crossed, the utilization rate of medicament had both been improve, while in turn ensure that follow-up reverse osmosis concentrated water process
The quality of the primary water for obtaining afterwards.
Preferably, the coagulation device and flocculation plant can also be connected with chemicals dosing plant, and chemicals dosing plant can select this area
General medicament adding device, for adding the water treatment agent with precipitation, clarification, separating effect, including but not limited to wads a quilt with cotton
The water treatment agents such as solidifying agent, coagulant, flocculation aid.
A kind of method for carrying out reverse osmosis concentrated water process using above-mentioned response system, comprises the following steps：
(1) powder electroless plating is processed：Pending reverse osmosis concentrated water is inhaled into activated carbon by concentrated water import first
Reaction enclosure device, under the quick mixing of agitator, add powder electroless plating agent, make Powdered Activated Carbon with it is pending
Concentrated water is fully contacted generation adsorption reaction precipitation, to remove most of organic pollutants and ammonia nitrogen, reduces the COD value and ammonia nitrogen of concentrated water
Content, wherein, those skilled in the art can select appropriate Powdered Activated Carbon according to the present invention, such as Powdered Activated Carbon
Mesh number can be 50-300, and greatly, absorbability is higher, and effect is more notable, and the dosage of activated carbon can for the mesh number of Powdered Activated Carbon
To be selected according to practical situations such as the contents of water pollutant, for example, can be 450-500mg/L.
(2) coagulating treatment：Jing after powder electroless plating process, the mixed liquor in adsorbent equipment, i.e. adsorption reaction are produced
Precipitate and concentrated water, by mixture export discharge and by coagulation device mixed liquor import enter coagulation device in, in coagulation
There is coagulating sedimentation reaction in the pollutant in dosing coagulant in device, with Powdered Activated Carbon and concentrated water, form flco, while removing
Remove total phosphorus, reduce total phosphorus content, wherein, the type and concentration of coagulant can be selected according to actual needs, for example can be with
For aluminium polychlorid, ferric chloride, poly-ferric chloride, aluminum sulfate, ferrous sulfate, aluminium potassium sulfate (Alumen), sodium aluminate or sulphuric acid
Ferrum etc., the concentration of coagulant can be 15-20mg/L；
(3) flocculation treatment：Jing after coagulant process, the mixed liquor in coagulation device is discharged by mixture export and by flocculating
The mixed liquor import of device is entered in flocculation plant, and flocculant is added in flocculation plant carries out flocculation reaction, makes flco continuous
Increase, in order to mud-water separation, and further reduces COD value and total phosphorus, the content of ammonia nitrogen in concentrated water, wherein, flocculant
Type and concentration can be selected according to actual needs, for example can for polyacrylic acid, sodium polyacrylate, calcium polyacrylate (CPA) or
Polyacrylamide etc., the concentration of flocculant can be 0.5-1mg/L；
(4) mud-water separation is processed：Mixed liquor Jing after flocculation treatment is discharged and by mud from the mixture export of flocculation plant
The mixed liquor import of water separation device carries out the separation of sludge and primary water into device for separating mud and water, and the primary water isolated leads to
Cross；
(5) sludge that step (4) is isolated is transported in powder electroless plating reaction unit by reflux pipe.
Preferably, in step (5), the sludge that step (4) is isolated quantitatively is transported to powder work by reflux pipe
In property charcoal adsorption reaction device, and the mud position detected according to mud position survey meter and sludge reflux amount, remainder is passed through
Sludge pipeline is quantitatively outer to be arranged.
By the following examples the present invention is described in further detail.
Embodiment 1
Sampled assay, pending influent quality condition are as follows：
Table 1
| Detection project | COD | Ammonia nitrogen | Total phosphorus |
| Content (mg/L) | 107.43 | 7.74 | 2 |
Using the reverse osmosis thick water treatment system described in the first embodiment of the invention, processing technological flow referring to Fig. 1,
It is specific as follows：
(1) pending reverse osmosis concentrated water enters powder electroless plating reaction unit by concentrated water import first, and startup is stirred
Mix device and mixed about 10-20min, while adding Powdered Activated Carbon, activated carbon is fully contacted with pending concentrated water and send out
Raw adsorption reaction precipitation, to remove most of organic pollutants and ammonia nitrogen, reduces the COD value and ammonia-nitrogen content of concentrated water, wherein, powder
Activated carbon mesh number is 200, and input amount is about 450mg/L；
(2) Jing after activated carbon adsorption process, the precipitate and dense that the mixed liquor in adsorbent equipment, i.e. adsorption reaction are produced
Water, is discharged and entered in coagulation device by the mixed liquor import of coagulation device by mixture export, while throwing in coagulation device
There is coagulating sedimentation reaction 2-5min in the pollutant in polyaddition aluminum chloride coagulant, with Powdered Activated Carbon and concentrated water, make activity
Pollutant reaction in charcoal and concentrated water forms flco, while removing total phosphorus, reduces total phosphorus content, wherein, aluminium polychlorid is added
Measure as 18mg/L；
(3) Jing after coagulant process, the mixed liquor in coagulation device is discharged by mixture export and by the mixed of flocculation plant
Close liquid import to enter in flocculation plant, polyacrylamide flocculant is added in flocculation plant, flocculation reaction 2-5min is carried out, is made
Flco constantly increases, and in order to mud-water separation, and further reduces COD value and total phosphorus, the content of ammonia nitrogen in concentrated water, wherein,
The dosage of polyacrylamide is 0.8mg/L；
(4) mixed liquor Jing after flocculation treatment is discharged from the mixture export of flocculation plant and by the mixed of device for separating mud and water
Close liquid import carries out the separation of sludge and primary water into device for separating mud and water, and the sludge isolated passes through to arrange outside sludge pipeline,
Primary water is by arranging outside water pipeline；
The operational factor of reverse osmosiss (RO) concentrated water response system is as follows：
In activated carbon adsorption reaction unit, the inlet of reverse osmosis concentrated water is 353m3/ h, primary water in device for separating mud and water
Output be 350m3/ h, the output of sludge is 8m3/h。
After above-mentioned process, COD is stably down to 42.97mg/L to reverse osmosis concentrated water, and the content of ammonia nitrogen is down to 4.22mg/L,
The content of total phosphorus is down to 0.25mg/L, and water outlet has reached first discharge standard, and the treating capacity of system concentrated water is 353m3/h。
Embodiment 2
Using the reverse osmosis thick water treatment system described in second embodiment of the invention, processing technological flow referring to Fig. 2,
It is specific as follows：
(1) pending reverse osmosis concentrated water enters activated carbon adsorption reaction unit by concentrated water import first, starts agitator
Mixing 10-20min is carried out, while adding Powdered Activated Carbon, makes Powdered Activated Carbon generation is fully contacted with pending concentrated water
Adsorption reaction is precipitated, wherein, Powdered Activated Carbon mesh number is 200, and input amount is about 400mg/L；
(2) Jing after activated carbon adsorption process, the precipitate and dense that the mixed liquor in adsorbent equipment, i.e. adsorption reaction are produced
Water, is discharged and entered in coagulation device by the mixed liquor import of coagulation device by mixture export, add poly- in coagulation device
Close aluminum chloride coagulant, with Powdered Activated Carbon and concentrated water in pollutant occur coagulating sedimentation reaction 2-5min, make activated carbon and
Pollutant reaction in concentrated water forms flco, while removing total phosphorus, reduces total phosphorus content, wherein, the dosage of aluminium polychlorid
For 18mg/L；
(3) Jing after coagulant process, the mixed liquor in coagulation device is discharged by mixture export and by the mixed of flocculation plant
Close liquid import to enter in flocculation plant, polyacrylamide flocculant is added in flocculation plant, flocculation reaction 2-5min is carried out, is made
Flco constantly increases, and in order to mud-water separation, and further reduces COD value and total phosphorus, the content of ammonia nitrogen in concentrated water, wherein,
The dosage of polyacrylamide is 0.8mg/L；
(4) mixed liquor Jing after flocculation treatment is discharged from the mixture export of flocculation plant and by the mixed of device for separating mud and water
Close liquid import carries out the separation of sludge and primary water into device for separating mud and water, and the primary water isolated is by outside water pipeline
Row；
(5) the mud place value height that activated carbon sludge is detected according to mud position survey meter, the sludge that will be isolated in step (4)
Be divided into two parts, a part is discharged by sludge outlet and activated carbon adsorption reaction unit entered into by reflux pipe, sludge import
In, remainder is used as row outside failure charcoal mud.
The operational factor of reverse osmosiss (RO) concentrated water processing meanss is as follows：
In activated carbon adsorption reaction unit, the inlet of reverse osmosis concentrated water is 353m3/ h, primary water in device for separating mud and water
Output be 350m3/ h, the sludge quantity for being back to activated carbon adsorption reaction unit are 20m3/ h, failure charcoal mud output be
5m3/h。
After above-mentioned process, COD value is down to 45mg/L to reverse osmosis concentrated water, and the content of ammonia nitrogen is down to 4.57mg/L, total phosphorus
Content be down to 0.26mg/L, water outlet has reached first discharge standard, and the treating capacity of system concentrated water is 353m3/h。
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the system and its core concept that understand the present invention；Simultaneously for one of ordinary skill in the art, foundation
The thought of the present invention, will change in specific embodiments and applications, and in sum, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of reverse osmosis thick water treatment system, including：Powder electroless plating reaction unit, coagulation device, flocculation plant and
Device for separating mud and water；
Powder electroless plating reaction unit, for receiving reverse osmosis concentrated water and Powdered Activated Carbon, so that the two mixes and reacts；
Coagulation device, is connected with the powder electroless plating reaction unit, for receiving from the powder electroless plating
The reaction mixture and coagulant of reaction unit, so that the two mixes and reacts；
Flocculation plant, is connected with the coagulation device, for receiving reaction mixture and flocculant from the coagulation device,
So that the two mixes and reacts；
Device for separating mud and water, is connected with the flocculation plant, for receiving the reaction mixture from the flocculation plant, is gone forward side by side
Row mud-water separation.
2. reverse osmosis thick water treatment system as claimed in claim 1, wherein, it is the powder electroless plating reaction unit, mixed
Agitator is equipped with inside solidifying device, flocculation plant, for being mixed.
3. reverse osmosis thick water treatment system as claimed in claim 1, wherein, the device for separating mud and water be inclined-plate clarifying basin or
Tube settler.
4. the reverse osmosis thick water treatment system as described in claim 1-3 is arbitrary, also including connect the device for separating mud and water with
The reflux pipe of the powder electroless plating reaction unit.
5. reverse osmosis thick water treatment system as claimed in claim 4, wherein, the detection of mud position is provided with the device for separating mud and water
Instrument.
6. the method for carrying out reverse osmosis concentrated water process according to the arbitrary described response system of claim 1-5, comprises the steps：
Step 1：Powder electroless plating process：By pending concentrated water by introducing activated carbon adsorption reaction unit, while addition
Powdered Activated Carbon, is sufficiently stirred for carrying out activated carbon adsorption；
Step 2：Coagulating treatment, the mixed liquor after powder electroless plating process is introduced in the coagulation device, while
Addition coagulant, to carry out coagulating treatment；
Step 3, flocculation treatment carry out flocculation treatment by sending in the flocculation plant by the mixed liquor after coagulating treatment；
Step 4：Mud-water separation process, the mixed liquor after flocculation treatment is sent into device for separating mud and water carries out sludge and clarification
The separation of water.
7. reverse osmosis thick water treatment method according to claim 6, also including step 5：The sludge that step 4 is isolated is led to
Cross reflux pipe to be transported in activated carbon adsorption reaction unit.
8. reverse osmosis thick water treatment method according to claim 6, also including step 5：The sludge that step 4 is isolated is led to
Cross reflux pipe to be quantitatively transported in activated carbon adsorption reaction unit, and the mud position detected according to mud position survey meter and sludge
Capacity of returns, remainder is arranged by sludge pipeline is quantitatively outer.
9. reverse osmosis thick water treatment method according to claim 6, the coagulant are aluminium polychlorid or polyaluminium
Ferrum.
10. reverse osmosis thick water treatment method according to claim 6, the flocculant are polyacrylamide.
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