A kind of concentration unit of high concentration salt solution
Technical field
The utility model is related to the processing technology field of high concentration salt solution, more particularly, it relates to a kind of high concentration salt solution
Concentration unit.
Background technology
In prior art, it is organic that wastewater treatment department usually removes ammonia nitrogen, the phosphorus in waste water etc. using biological treatment
Thing, however, the characteristics of waste water has high salt content, content of organics height, many pollutant kinds and the big water yield, biological treatment pair
The removal of the inorganic salts in waste water is very limited.The industry such as counter-infiltration production, the ion exchange regenerant production in coal-burning power plant
During easily produce the strong brine by-products such as reverse osmosis concentrated water, circulating sewage, ion exchange regenerant waste liquid, boiler blowdown water
Thing.
For the process of strong brine, the water of the highly concentrated salinity content of national regulation can not typically enter technique productions flow process, only
Can use as flushing water.Wastewater treatment department is usually this place voluntarily after dilute with water as greening water or directly discharge
Reason method easily causes the waste of great lot of water resources, causes environmental pollution and the destruction of water ecology balance.With a large amount of dense salt
The enterprise of water accessory substance source of sewage is typically recycled using desalination process to water resource, conventional means are evaporation, concentration,
The hot method desalinations such as crystallization, but the hot method desalination energy consumption in practical application is higher, and evaporation process ton water needs steam 0.4-0.5 tons,
This causes enterprise's production capacity higher, therefore most producers, in the various energy-saving type evaporators of research and development, such as multi-effect evaporator, heating power is followed
Ring vapor recompression device, function of mechanical steam recompression device etc..Heat for the water yield that integrally need to be processed, needed for evaporation and crystallization
Amount is certain, is also limited only by improve steam utilization to obtain effect.For the problems referred to above, a kind of high concentration is developed
The concentration unit of salt solution is those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
Technical problem to be solved in the utility model is:The technical problem mentioned in overcome above-mentioned background technology, it is existing
A kind of concentration unit of high concentration salt solution is provided.
The utility model solves the technical scheme that its technical problem adopted:A kind of concentration unit of high concentration salt solution,
The device includes:The pretreatment unit connected by pipeline and embrane method processing meanss, pretreatment unit includes passing sequentially through pipeline
Connection:Wastewater disposal basin, efficiently recessed whirlpool air supporting sedimentation basin, accelerator, two grades of deep bed filters, active carbon filter,
First clear water reserviors, embrane method processing meanss include:Reverse osmosis membrane filtration device, a secondary reverse osmosis membrane filtration device and just permeating
Film filter, the first clear water reserviors are connected with a reverse osmosis membrane filtration device by pipeline;It is useless in the pretreatment unit
Flocculant dispensing port and flocculation aid dispensing port are disposed between pond and efficient recessed whirlpool air supporting sedimentation basin;Efficiently recessed whirlpool air supporting
Sedimentation basin bottom and accelerator bottom are connected respectively by pipeline with sludge treatment equipment;Efficiently recessed whirlpool air supporting precipitation
Lime dosing mouth is provided between pond and accelerator;Reverse osmosis membrane filtration device, secondary reverse osmosis membrane
Filter and forward osmosis membrane filter are connected respectively by pipeline with reuse water tank.
Further, sludge treatment equipment described in above-mentioned technical proposal includes what is be sequentially connected:Sludge concentration tank, filter press
With the second clear water reserviors;The flocculant dispensing port includes passing sequentially through pipeline connection:Flocculant storehouse, first dissolving case, first
Measuring pump and the first release position, flocculation aid dispensing port includes passing sequentially through pipeline connection:Flocculation aid storehouse, the second dissolving case, the
Two measuring pumps and the second release position, lime dosing mouth includes passing sequentially through pipeline connection:Lime powder bin, the 3rd dissolving case, the
Three measuring pumps and the 3rd release position.
Further, a kind of concentrating method of the high concentration salt solution described in above-mentioned technical proposal, the method includes following step
Suddenly:
(1) medicament is configured
Flocculant is added in the first dissolving case and is dissolved, flocculant solution preparation is pumped into into first by the first measuring pump
Release position;Flocculation aid is added in the second dissolving case and is dissolved, flocculation aid solution preparation is pumped into into second by the second measuring pump
Release position;Pulverized limestone is added in the 3rd dissolving case and is dissolved, pulverized limestone solution preparation is pumped into into the 3rd by the 3rd measuring pump
Release position;
(2) high salt concentration water pretreatment
High concentration salt solution is passed through into wastewater disposal basin, it is when efficient recessed whirlpool air supporting sedimentation basin is passed through by wastewater disposal basin, flocculant is molten
Liquid pumps into the first release position by the first measuring pump, then flocculation aid solution is pumped into into the second release position by the second measuring pump;By height
When imitating recessed whirlpool air supporting sedimentation basin and being passed through accelerator, pulverized limestone solution is pumped into into the 3rd release position by the 3rd measuring pump;
Successively high concentration salt solution is passed through successively again two grades of deep bed filters, active carbon filters, eventually arrives at the first clear water reserviors, wherein,
Efficiently precipitation is passed through sludge treatment equipment by recessed whirlpool air supporting sedimentation basin bottom and accelerator bottom by pipeline respectively
In;Sludge treatment equipment will be deposited in sludge concentration tank and be passed through press filtration in filter press after concentration and obtain filter cake and filtrate, filtrate Jing
Process enters the second clear water reserviors, and treatment fluid can be passed through in accelerator and further process in the second clear water reserviors;
(3) high salt concentration moisture film method is processed
First clear water reserviors gained pretreatment salt solution is passed through into a reverse osmosis membrane filtration device, a reverse osmosis membrane filtration dress
Non- filter liquor in putting is passed through secondary reverse osmosis membrane filtration device, and the non-filter liquor in secondary reverse osmosis membrane filtration device is passed through just
Osmosis membrane filters device, the non-filter liquor of forward osmosis membrane filter is concentrate salt solution;The reverse osmosis membrane filtration dress
Put, the filter liquor of secondary reverse osmosis membrane filtration device and forward osmosis membrane filter three is passed through reuse water tank.
Further, flocculant is FeClSO in step described in above-mentioned technical proposal (1)4, flocculant in the first dissolving case
Concentration of aqueous solution is 8-10%, and the flocculant of the first release position throws in concentration and is about 40-60mg/L;Flocculation aid is aluminium chloride
PAC or polyacrylamide PAM, second dissolving case in flocculation aid concentration of aqueous solution be 0.1-0.2 ‰, the flocculation aid of the second release position
Input concentration is 0.5-1.0mg/L;3rd dissolving case in pulverized limestone concentration of aqueous solution be 4-6%, the pulverized limestone of the 3rd release position
Throw in concentration and be about 450-550mg/L.
Efficient recessed whirlpool air supporting sedimentation basin in technical solutions of the utility model is the applicant in patent in 2012
201210475476.1 described in structure;Sludge concentration tank in sludge treatment equipment includes:Centre inlet, top clear water
Outlet and the outlet of bottom thickened sludge, by sludge from sedimentation function, in the top clear water output of sludge concentration tank clear water are formed
And overflow enters the second clear water reserviors;Filter press in sludge treatment equipment has to be compressed and filter to be formed thickened sludge to be filtered
The function of cake and clear water (entering the second clear water reserviors);Accelerator has the function of mechanical agitation and stratification, can
It is clear layer and the beds of precipitation by the high salt concentration moisture for adding pulverized limestone solution, high concentration salt solution can through accelerator
The suspension gone in eliminating water and 60% colloid, lime amidin can process partial organic substances in eliminating water, hardness and weight
Metal ion, chemical reaction is as follows:HCO3 -+OH-→CO3 2-;
Ca2+CO3 2-→CaCO3↓;
Mg2++OH-→Mg(OH)2↓;
Ca2+SiO2→CaSiO3↓;High concentration salt solution delivery turbidity Jing after accelerator is less than 15NTU, through two
Delivery turbidity is less than 1NTU after level deep bed filter is processed, and by two grades of deep bed filters and active carbon filter height can be removed
99.5% residual organic substances in concentration salt solution;Wherein, two grades of deep bed filters are a kind of filter of upper entering and lower leaving, are included
The rough sand layer on upper strata, the fine sand layer of lower floor and isolation sand bed;Active carbon filter is a kind of filter of upper entering and lower leaving, is included
The active carbon layer and separation layer of different meshes;The aquifer yield of reverse osmosis membrane filtration device be 60-75%, secondary reverse osmosis membrane
The aquifer yield of filter is 40-50%, and the aquifer yield of forward osmosis membrane filter is 60-70%, concentrate of the present utility model
The aquifer yield of device and concentrating method is 85-95%.
Beneficial effect:Compared with prior art, in the utility model concentration unit and the technical scheme of concentrating method be
By the pretreatment before heat treatment of high concentration salt solution and embrane method processing scheme, after the technical solution of the utility model, water is produced
Salt rejection rate can be directly used for industrial system respectively with water spot up to 99%, and the forward osmosis membrane in Jing the utility model devices is filtered
Haline water after device process does flue dedusting sprinkling water or Jing evaporated crystallization devices are processed and produce solid, can effectively improve steaming
Vapour utilization rate, reduces heat treatment cost, reduces enterprise's production capacity, convenient and practical, suitable further genralrlization application.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will be to wanting needed for embodiment description
The accompanying drawing for using does simply to be introduced, it should be apparent that, drawings in the following description are only some enforcements of the present utility model
Example, for those of ordinary skill in the art, on the premise of work is not paid, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 show the structural representation of concentration unit of the present utility model.
Specific embodiment
The utility model is further illustrated with reference to embodiment, the full content of the composition represented by example below
Necessary to being not limited to the solution as the utility model described in claim.
Embodiment one
A kind of concentration unit of high concentration salt solution as shown in Figure 1, the device includes:The pretreatment connected by pipeline
Device and embrane method processing meanss, pretreatment unit includes passing sequentially through pipeline connection:Wastewater disposal basin (being passed through high concentration salt solution), height
Recessed whirlpool air supporting sedimentation basin, accelerator, two grades of deep bed filters, active carbon filter, first clear water reserviors are imitated, at embrane method
Reason device includes:Reverse osmosis membrane filtration device (a RO device), a secondary reverse osmosis membrane filtration device (secondary RO devices)
With forward osmosis membrane filter (FO devices), the first clear water reserviors are connected with a reverse osmosis membrane filtration device by pipeline;It is described
Flocculant dispensing port is disposed between wastewater disposal basin and efficient recessed whirlpool air supporting sedimentation basin in pretreatment unit and flocculation aid is thrown
Put mouth;Efficiently recessed whirlpool air supporting sedimentation basin bottom and accelerator bottom are connected respectively by pipeline with sludge treatment equipment
Connect;Efficiently it is provided with lime dosing mouth between recessed whirlpool air supporting sedimentation basin and accelerator;Reverse osmosis membrane mistake
Filter device, secondary reverse osmosis membrane filtration device and forward osmosis membrane filter are connected respectively by pipeline with reuse water tank.
Further, sludge treatment equipment described in above-mentioned technical proposal includes what is be sequentially connected:Sludge concentration tank, filter press
With the second clear water reserviors;The flocculant dispensing port includes passing sequentially through pipeline connection:Flocculant storehouse, first dissolving case, first
Measuring pump and the first release position, flocculation aid dispensing port includes passing sequentially through pipeline connection:Flocculation aid storehouse, the second dissolving case, the
Two measuring pumps and the second release position, lime dosing mouth includes passing sequentially through pipeline connection:Lime powder bin, the 3rd dissolving case, the
Three measuring pumps and the 3rd release position.
Embodiment two
A kind of concentrating method of high concentration salt solution, the method comprises the steps (can refer to accompanying drawing 1):
(1) medicament is configured
Flocculant is added in the first dissolving case and is dissolved, flocculant solution preparation is pumped into into first by the first measuring pump
Release position;Flocculation aid is added in the second dissolving case and is dissolved, flocculation aid solution preparation is pumped into into second by the second measuring pump
Release position;Pulverized limestone is added in the 3rd dissolving case and is dissolved, pulverized limestone solution preparation is pumped into into the 3rd by the 3rd measuring pump
Release position;
(2) high salt concentration water pretreatment
High concentration salt solution is passed through into wastewater disposal basin, it is when efficient recessed whirlpool air supporting sedimentation basin is passed through by wastewater disposal basin, flocculant is molten
Liquid pumps into the first release position by the first measuring pump, then flocculation aid solution is pumped into into the second release position by the second measuring pump;By height
When imitating recessed whirlpool air supporting sedimentation basin and being passed through accelerator, pulverized limestone solution is pumped into into the 3rd release position by the 3rd measuring pump;
Successively high concentration salt solution is passed through successively again two grades of deep bed filters, active carbon filters, eventually arrives at the first clear water reserviors, wherein,
Efficiently precipitation is passed through sludge treatment equipment by recessed whirlpool air supporting sedimentation basin bottom and accelerator bottom by pipeline respectively
In;Sludge treatment equipment will be deposited in sludge concentration tank and be passed through press filtration in filter press after concentration and obtain filter cake and filtrate, filtrate Jing
Process enters the second clear water reserviors, and treatment fluid can be passed through in accelerator and further process in the second clear water reserviors;
(3) high salt concentration moisture film method is processed
First clear water reserviors gained pretreatment salt solution is passed through into a reverse osmosis membrane filtration device, a reverse osmosis membrane filtration dress
Non- filter liquor in putting is passed through secondary reverse osmosis membrane filtration device, and the non-filter liquor in secondary reverse osmosis membrane filtration device is passed through just
Osmosis membrane filters device, the non-filter liquor of forward osmosis membrane filter is concentrate salt solution;The reverse osmosis membrane filtration dress
Put, the filter liquor of secondary reverse osmosis membrane filtration device and forward osmosis membrane filter three is passed through reuse water tank.
Further, flocculant is FeClSO in step described in above-mentioned technical proposal (1)4, flocculant in the first dissolving case
Concentration of aqueous solution is 10%, and it is 50mg/L that the flocculant of the first release position throws in concentration;Flocculation aid is PAC, in the second dissolving case
Flocculation aid concentration of aqueous solution is 0.2 ‰, and it is 1.0mg/L that the flocculation aid of the second release position throws in concentration;Lime in 3rd dissolving case
Amidin concentration is 5%, and it is 500mg/L that the pulverized limestone of the 3rd release position throws in concentration.
The high salt concentration water of 20T/h is processed using the concentration unit and the concentrating method of embodiment two of above-described embodiment one
Afterwards, the non-filter liquor of forward osmosis membrane filter be the concentrate salt solution water yield be only 1.5T/h, high concentration salt solution containing in porch
Salt amount is 40000mg/L, and concentrate salt solution salt content is 210000mg/L, and recycle-water salt rejection rate is 99% in reuse water tank, can be straight
Connect and respectively use water spot, concentrate salt solution to can be used as flue dedusting sandblasting water or send into evaporated crystallization device generation admittedly for industrial system
Body, can greatly save evaporative crystallization cost, improve production efficiency, suitable further genralrlization application.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case of without departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.