CN205347023U - Contain useless pretreatment of water device of salt - Google Patents
Contain useless pretreatment of water device of salt Download PDFInfo
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- CN205347023U CN205347023U CN201521072159.0U CN201521072159U CN205347023U CN 205347023 U CN205347023 U CN 205347023U CN 201521072159 U CN201521072159 U CN 201521072159U CN 205347023 U CN205347023 U CN 205347023U
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Abstract
The utility model provides a contain useless pretreatment of water device of salt, including being used for receiving the elementary soft water treatment unit who contains salt waste water, a mechanical removal impurity unit for receiving that comes from elementary soft water treatment unit contains salt waste water, a soften water treatment unit for receiving that comes from mechanical removal impurity unit contains salt waste water, a mud sedimentation unit that is used for carrying out solid -liquid separation with the dense water of the sediment that comes from elementary soft water treatment unit. The utility model discloses a contain useless pretreatment of water device of salt can effectively detach a large amount of pollutants including divalence hardness ion, large granule mechanical impurities, colloid polluting substances etc. Such as the suspended solid in the salt waste water, calcium ion and magnesium ions, improves the whole treatment effect that contains salt waste water zero release technique, prolong zero follow -up discharging equipment's cycle of operation, reduces follow -up reverse osmosis membrane's washing frequency, reduces the consumption of settleing the washing medicine agent and prolongs the life of membrane.
Description
Technical field
This utility model belongs to technical field of waste water processing, particularly a kind of brine waste pretreatment unit.
Background technology
In recent years, fast development along with China's oil chemical industry, coal chemical industry, industrial circulating cooling water system, chemical water system, steam generator system construction scale all increasing, generate the problem that substantial amounts of discharge of wastewater therewith, this effluent part discharge capacity accounts for the 10%～20% of enterprise water use total amount, and all contains higher salt.Therefore, a lot of enterprises utilize bi-membrane method that the brine waste of these primary discharges has been recycled.Owing to these brine wastes are to be made up of row's reverse osmosis concentrated water outside boiler blowdown water, recirculated water, sewer, chemical water and system, therefore comparing industrial former glassware for drinking water has higher hardness, to environment.After enterprise utilizes bi-membrane method to reclaim the brine waste of about about 60%, its dense water is outer row still, causes various contaminated ions in brine waste to concentrate further.Increasingly serious along with China's water scarcity situation, Green GDP construction that especially country advocates energetically and the proposition of recycling economy, industrial water saving reduces discharging and is particularly important with utilization of wastewater resource.Therefore how enterprise carries out waste water recycling reach " zero-emission " requirement to greatest extent, is that enterprise meets country, local government's environmental requirement, establishes the important process of the responsible image of enterprise.
Brine waste zero emission technology domestic and international Integral Thought at present is front end pretreatment, middle minimizing process and follow-up evaporative crystallization concentration.Wherein brine waste pretreatment is essential elements therein, and whether the treatment effect of brine waste pretreatment directly influences subsequent cell can continuous and steady operation.Good pretreating process device can effectively improve a whole set of engineering reliability of zero-discharge technology, stability, extends the cycle of operation of zero-emission the whole series technology, reduces the irreversible damage of cleaning agent consumption and reverse osmosis membrane.And early stage pretreatment of the prior art, these effects can not be reached, pretreating effect is undesirable, brings very big trouble to follow-up processing procedure.
Utility model content
The purpose of this utility model is in that to provide a kind of brine waste pretreatment unit, removes a large amount of pollutant in brine waste, improves the disposed of in its entirety effect of brine waste zero emission technology.
The technical solution of the utility model is as follows:
Brine waste pretreatment unit of the present utility model, including:
Primary soft brush treatment unit: be used for receiving brine waste, and remove bivalence hardness ions therein, float and colloid pollution material；
Mechanical purifying unit: for removing from the bulky grain mechanical admixture in the brine waste of primary soft brush treatment unit, float, colloid pollution material；
Softening unit for treating water: for removing the mechanical admixture of residual, float, colloid pollution material, bivalence hardness ions in the brine waste of mechanical purifying unit, obtain pretreated brine waste；
Sludge settling unit: for the dense water that precipitates from primary soft brush treatment unit is carried out solid-liquid separation and the liquids recovery that solid-liquid separation obtained is circulated process to primary soft brush treatment unit.
Preferably, described primary soft brush treatment unit includes:
Water inlet Buffer Pool: receive brine waste, and it is carried out homogenizing all measure adjustment；
Pipe-line mixer: receive the brine waste from water inlet Buffer Pool and the lime cream from the first throwing device, and in this pipe-line mixer, the two is mixed；
Former water elevator pump: for the brine waste from water inlet Buffer Pool is conveyed into described pipe-line mixer；
Calx softening depositing reservoir: receive the brine waste from described pipe-line mixer and the flocculant from the second throwing device, and soften by the two mixing in depositing reservoir at this Calx, to remove from the bivalence hardness ions in the brine waste of described pipe-line mixer；
Second pipe blender: receive and mix the brine waste from described Calx softening depositing reservoir and the hydrochloric acid from the 3rd throwing device, to regulate the pH of the brine waste softening depositing reservoir from described Calx；
Primary soft water Buffer Pool: receive the brine waste from second pipe blender, and it is carried out homogenizing all measure adjustment.
Preferably, described mechanical purifying unit includes:
More medium filter: for filtering from the float in the brine waste of primary soft brush treatment unit and colloid pollution material；
Softening water elevator pump: for by the brine waste input more medium filter from primary soft brush treatment unit；
Intermediate water tank: receive from the brine waste of more medium filter, and it is carried out homogenizing all measure adjustment；
Self-cleaning filter: for filtering from the bulky grain mechanical admixture in the brine waste of intermediate water tank, float；
Ultrafiltrate pump: for the brine waste from intermediate water tank is inputted self-cleaning filter；
10 microns of cartridge filters: remove the bulky grain mechanical admixture of residual in the brine waste of self-cleaning filter for retaining.
Preferably, described softening unit for treating water includes:
Ultrafiltration apparatus: remove float and the colloid pollution material of residual in the brine waste of mechanical purifying unit for ultrafiltration；
Water tank is produced in ultrafiltration: receive from the brine waste of ultrafiltration apparatus, and it is carried out homogenizing all measures adjustment；
Nanofiltration device: remove the bivalence hardness ions of residual in the brine waste producing water tank from ultrafiltration for nanofiltration；
Nanofiltration pump: for the brine waste producing water tank from ultrafiltration is inputted nanofiltration device；
Weakly acidic cation exchanger: for removing the bivalence hardness ions of residual in the brine waste of nanofiltration device further；
Soft water Buffer Pool: receive from the brine waste of weakly acidic cation exchanger, and it is carried out homogenizing all measure adjustment, obtain pretreated waste water.
Preferably, described sludge settling unit includes:
Belt vacuum defecator: receive and soften the dense water of precipitation bottom depositing reservoir from Calx, and carry out solid-liquid separation；
Sludge filtration pump: Calx is softened the dense water of the precipitation bottom depositing reservoir and is transported to described belt vacuum defecator；
Filtrate reflux pump: receive the liquid obtained after solid-liquid separation from belt vacuum defecator, and be sent in described water inlet Buffer Pool.
Preferably, it is provided with the combination of swash plate inclined tube in described Calx softening depositing reservoir.
Preferably, the combination of described swash plate inclined tube is set in vertical direction with 45° angle.
Preferably, described primary soft water Buffer Pool includes the first compartment and the second compartment, described first compartment and the second compartment and is separated by the dividing plate being arranged in the middle part of described primary soft water Buffer Pool；Described dividing plate top is provided with downflow weir；
Described first compartment, receives the brine waste softening depositing reservoir from described Calx, and it is carried out homogenizing all measures adjustment；
Described second compartment, receives from the brine waste of described first compartment through downflow weir, and it is carried out homogenizing all measures adjustment.
Preferably, the filter element of described 10 microns of cartridge filters is Nidus Vespae filter element.
The beneficial effects of the utility model are in that:
(1) in the technical scheme corresponding with claim 1; the setting of brine waste pretreatment unit each processing unit; can effectively remove a large amount of pollutant such as the bivalence hardness ionses such as the float in brine waste, calcium ion and magnesium ion, bulky grain mechanical admixture, colloid pollution material; improve the disposed of in its entirety effect of brine waste zero emission technology; process for aftertreatment device provides convenient and ensures; extend the discharge cycle of follow-up Zero emission device; reduce the cleaning frequency of follow-up reverse osmosis membrane, reduce the consumption of cleaning agent and extend the service life of film；
(2) in the technical scheme corresponding with claim 2, the setting of each several part in primary soft brush treatment unit, can effectively remove most float in brine waste, colloidal type material and the bivalence hardness ions such as calcium ion and magnesium ion, provide convenient for follow-up processing unit and ensure；Brine waste input channel blender and lime cream are sufficiently mixed reaction, soften depositing reservoir subsequently into Calx and continue reaction, clarification, precipitation；Addition flocculant in depositing reservoir can be softened at Calx to accelerate flocculation sediment process, accelerate and flocculation volume increase through flocculant flocculation postprecipitation, net can be formed catch volume and sweep effect, in main removal brine waste while most bivalence hardness ionses, incidentally remove bulky grain float and other colloid pollution material, make delivery turbidity≤10NTU, in addition, also can effectively reduce frequency and scavenging period that in subsequent mechanical impurity removing unit, more medium filter isolation is cleaned, reduce staff labor intensity, improve overall operation efficiency；
(3) in the technical scheme corresponding with claim 3, the setting of each several part in mechanical purifying unit, can effectively remove by bivalence hardness ionses such as the most of calcium ion remained in the brine waste obtained after primary soft brush treatment cell processing and magnesium ions, float, colloid, the polluters such as bulky grain mechanical admixture, contaminated with the ion exchange resin that prevents follow-up weakly acidic cation exchanger to greatest extent, protect the ultrafilter membrane of follow-up softening unit for treating water, NF membrane is not by irreversible damages such as machinery scuffings, there is provided convenient for follow-up processing unit and ensure；Delivery turbidity≤2NTU after mechanical purifying cell processing, and eliminate in initial brine waste the bivalence hardness ions such as calcium ion and magnesium ion about half；Wherein, more medium filter can filter most float, colloid pollution material, moreover it is possible to removes about 10%COD, after self-cleaning filter is positioned at more medium filter; the removal meeting bulky grain mechanical admixture and float is descending, process from more to less；Self-cleaning filter and 10 microns of cartridge filters filter the polluters such as bulky grain mechanical admixture and float further；10 microns of cartridge filters retain a small amount of broken filtrate and the most mechanical admixtures more than 10 microns that aforementioned filter spills simultaneously, the polluter such as float and colloid, to prevent from NF membrane in follow-up softening unit for treating water causes machinery scuffing, protect follow-up ultrafilter membrane to greatest extent, NF membrane is not scratched by machinery and dirt is blocked up, protect the ion exchange resin in follow-up ion-exchange unit not contaminated simultaneously, it is effectively ensured ultrafiltration in follow-up softening water unit, nanofiltration, the removing glue body of Weak-acid cation switch, normal effect except functions such as hardness；After 10 microns of cartridge filters are positioned at self-cleaning filter, before ultrafiltration apparatus, it is possible to meet the removal process that the particle diameter such as mechanical admixture, float is descending；
(4) in the technical scheme corresponding with claim 4, the setting of each several part in softening unit for treating water, can effectively remove by colloid remaining in the brine waste obtained after mechanical purifying cell processing and bivalence hardness ions (such as calcium ion and magnesium ion etc.) polluter, reduce hardness of water, after this unit, go out the water hardness be reduced to≤0.1mmol, reducing fouling tendency ion to greatest extent to accumulate in reverse osmosis membrane and supersaturation precipitation, the long-period stable operation for follow-up reverse osmosis membrane system lays the foundation；Nanofiltration device can effectively remove the bivalence hardness ionses such as calcium ion remaining in brine waste and magnesium ion, removes hardness further；Weakly acidic cation exchanger can remove the bivalence hardness ionses such as the remaining calcium ion of nanofiltration device and magnesium ion further；Wherein, before ultrafiltration apparatus is arranged at nanofiltration device; the membrane aperture being because ultrafiltration is greater than nanofiltration; the removal process ensureing polluter is descending removal process step by step, ultrafiltration simultaneously mainly removes the mechanical admixtures such as residual float and colloid pollution material, can protect follow-up weakly acidic cation exchanger ion exchange resin properly functioning and not contaminated；
(5) in the technical scheme corresponding with claim 5, the setting of each several part in sludge settling unit, the dense water of precipitation in primary soft brush treatment unit can be processed again, and precipitation is removed, filtrate is re-fed into primary soft brush treatment unit be circulated, it is possible not only to the directly outer row of the dense water after preventing wastewater treatment and causes environmental pollution, also waste water fully can be processed；
(6) setting of Calx softening depositing reservoir inner swash plate inclined tube combination, can accelerate the precipitation of the bivalence hardness ions such as calcium ion and magnesium ion, improve the efficiency of wastewater treatment；
(7) setting of the first compartment and the second compartment in primary soft water Buffer Pool, it is possible to make the water in inflow primary soft water Buffer Pool have a standing process, and the process that stands can remove wherein remaining bulky grain machinery；
When the material for core of (8) 10 microns of cartridge filters is Nidus Vespae filter element, it is simple to change, be conducive to Operation and Maintenance and the management of equipment.
Accompanying drawing explanation
Fig. 1 is the brine waste pretreatment unit of the present utility model process chart in a kind of detailed description of the invention；
Wherein, 01 is primary soft brush treatment unit, 02 is mechanical purifying unit, 03 is softening unit for treating water, 04 is sludge settling unit, 1 is water inlet Buffer Pool, 2 is pipe-line mixer, 3 soften depositing reservoir for Calx, 31 combine for swash plate inclined tube, 4 is second pipe blender, 5 is primary soft water Buffer Pool, 51 is the first compartment, 52 is the second compartment, 6 is softening water elevator pump, 7 is more medium filter, 8 is intermediate water tank, 9 is ultrafiltrate pump, 10 is self-cleaning filter, 11 is 10 microns of security filters, 12 is ultrafiltration apparatus, 13 produce water tank for ultrafiltration, 14 is nanofiltration pump, 15 is nanofiltration device, 16 is weakly acidic cation exchanger, 17 is soft water Buffer Pool, 18 is elevator pump, 19 is former water elevator pump, 20 is sludge filtration pump, 21 is filtrate reflux pump, 22 is belt vacuum defecator.
Detailed description of the invention
Below in conjunction with accompanying drawing, brine waste pretreatment unit of the present utility model is described in further detail, but therefore this utility model is not restricted.
As it is shown in figure 1, brine waste pretreatment unit of the present utility model, including:
Primary soft brush treatment unit 01: be used for receiving brine waste, and remove bivalence hardness ions, float and the colloid pollution materials such as calcium ion therein and magnesium ion；
Mechanical purifying unit 02: for removing from the bulky grain mechanical admixture in the brine waste of primary soft brush treatment unit 01, float, colloid pollution material；
Softening unit for treating water 03: for removing bivalence hardness ions, mechanical admixture, float, the colloid pollution materials such as calcium ion and the magnesium ion of residual in the brine waste of mechanical purifying unit 02, obtain pretreated waste water；
Sludge settling unit 04: for the dense water that precipitates from primary soft brush treatment unit 01 is carried out solid-liquid separation and the liquids recovery that solid-liquid separation obtained is circulated process to primary soft brush treatment unit (01).
In one embodiment, above-mentioned brine waste pretreatment unit also includes elevator pump 18, and described elevator pump 18 is for flowing to aftertreatment device by the brine waste from softening unit for treating water 03.
In one embodiment, primary soft brush treatment unit 01 includes:
Water inlet Buffer Pool 1: receive brine waste, and it is carried out homogenizing all measure adjustment；
Pipe-line mixer 2: receive the brine waste from water inlet Buffer Pool 1 and the lime cream from the first throwing device, and in this pipe-line mixer 2, the two is mixed；
Former water elevator pump 19: for the brine waste from water inlet Buffer Pool 1 is conveyed into pipe-line mixer 2；
Calx softening depositing reservoir 3: receive the brine waste from described pipe-line mixer 2 and the flocculant from the second throwing device (not shown), and soften by the two mixing in depositing reservoir 3 at this Calx, to remove from bivalence hardness ionses such as the calcium ion in the brine waste of described pipe-line mixer 2 and magnesium ions；
Second pipe blender 4: receive and mix the brine waste from described Calx softening depositing reservoir 3 and the hydrochloric acid from the 3rd throwing device (not shown), softens the pH of brine waste of depositing reservoir 3 to brine waste close to neutral with adjustment from described Calx；
Primary soft water Buffer Pool 5: receive the brine waste from second pipe blender 4, and it is carried out homogenizing all measure adjustment.
Pipe-line mixer 2 and second pipe blender 4 can be nozzle-type, eddy current type, multiaperture-type or different orifice-plate type blender.
Pipe-line mixer 2 and second pipe blender 4 can also have the equipment of immixture for other, it is preferable that line-blending thing, because it is simple to carry out married operation with pipe-line mixer, and good mixing effect.
Flocculant is flocculant commonly used in the art, and in one embodiment, flocculant is aluminum salt flocculant.
In one embodiment, on the basis adding flocculant, add flocculation aid further, such as polyacrylamide, remove the bivalence hardness ionses such as calcium ion therein and magnesium ion better.
First throwing device, the second throwing device, the 3rd throwing device are dosing pump throwing device commonly used in the art.
In one embodiment, it is provided with swash plate inclined tube combination 31 in described Calx softening depositing reservoir 3.
In a preferred embodiment, described swash plate inclined tube combination 31 is set in vertical direction with 45° angle.
The setting of Calx softening depositing reservoir 3 inner swash plate inclined tube combination 31, can accelerate the precipitation of the bivalence hardness ions such as calcium ion and magnesium ion, improve the efficiency of wastewater treatment.
In one embodiment, described primary soft water Buffer Pool 5 includes the first compartment 51 and the second compartment 52, described first compartment 51 and the second compartment 52 and is separated by the dividing plate being arranged in the middle part of described primary soft water Buffer Pool 5；Described dividing plate top is provided with downflow weir；
Described first compartment 51, receives the brine waste softening depositing reservoir 3 from described Calx, and it is carried out homogenizing all measures adjustment；
Described second compartment 52, receives from the brine waste of described first compartment 51 through downflow weir, and it is carried out homogenizing all measures adjustment.
The setting of the first compartment 51 and the second compartment 52 in primary soft water Buffer Pool 5, it is possible to make the water in inflow primary soft water Buffer Pool 5 have a standing process, and the process that stands can remove wherein remaining bulky grain machinery.
In one embodiment, described mechanical purifying unit 02 includes:
More medium filter 7: for filtering from the float in the brine waste of primary soft brush treatment unit 01 and colloid pollution material；
Softening water elevator pump 6: for by the brine waste input more medium filter 7 from primary soft brush treatment unit 01；
Intermediate water tank 8: receive from the brine waste of more medium filter 7, and it is carried out homogenizing all measure adjustment；
Self-cleaning filter 10: for filtering from the bulky grain mechanical admixture in the brine waste of intermediate water tank 8, float；
Ultrafiltrate pump 9: for the brine waste from intermediate water tank 8 is inputted self-cleaning filter 10；
10 microns of security filters 11: remove the bulky grain mechanical admixture of residual in the brine waste of self-cleaning filter 10 for retaining.
The filter element of 10 microns of cartridge filters 11 can be filter element commonly used in the art, including sintering chimney filter, fusion-jet type fabric filter element or Nidus Vespae filter element.
In one embodiment, the filter element of 10 microns of cartridge filters is Nidus Vespae filter element, it is simple to change, be conducive to Operation and Maintenance and the management of equipment.
In one embodiment, 10 microns of cartridge filter filtering accuracies are 10 μm, and to prevent large particulate matter input subsequent ultrafiltration, nanofiltration system, protecting film is not scratched by machinery to greatest extent.
In one embodiment, the multiple filtration filtrate such as more medium filter 7 internal filled stone sand, anthracite.The pollutant in water can be filtered better.
In one embodiment, softening unit for treating water 03 includes:
Ultrafiltration apparatus 12: remove float and the colloid pollution material of residual in the brine waste of mechanical purifying unit 02 for ultrafiltration；
Water tank 13 is produced in ultrafiltration: receive from the brine waste of ultrafiltration apparatus 12, and it is carried out homogenizing all measures adjustment；
Nanofiltration device 15: remove for nanofiltration and produce the bivalence hardness ionses such as the calcium ion remained in the brine waste of water tank 13 and magnesium ion from ultrafiltration；
Nanofiltration pump 14: for the brine waste producing water tank 13 from ultrafiltration is inputted nanofiltration device 15；
Weakly acidic cation exchanger 16: for removing the bivalence hardness ionses such as calcium ion and the magnesium ion of residual in the brine waste of nanofiltration device 15；
Soft water Buffer Pool 17: receive from the brine waste of weakly acidic cation exchanger 16, and it is carried out homogenizing all measure adjustment, obtain pretreated waste water.
In a preferred embodiment, brine waste subsequent processing units sent into by the boosted pump 18 of brine waste in described soft water Buffer Pool 17.
Ultrafiltration apparatus 12 is ultrafiltration apparatus commonly used in the art, and ultrafiltration apparatus 12 is preferably selected from the ultrafiltration apparatus of Tao Shi, GE, Toray.
Nanofiltration device 15 is nanofiltration equipment commonly used in the art, and nanofiltration device 15 is preferably selected from Tao Shi, GE, eastern beautiful nanofiltration equipment.
In one embodiment, described sludge settling unit 04 includes:
Belt vacuum defecator 22: receive and soften the dense water of precipitation bottom depositing reservoir 3 from Calx, and carry out solid-liquid separation；
Sludge filtration pump 20: Calx is softened the dense water of the precipitation bottom depositing reservoir 3 and is transported to described belt vacuum defecator 22；
Filtrate reflux pump 21: receive the liquid obtained after solid-liquid separation from belt vacuum defecator 22, and be sent in described water inlet Buffer Pool 1.
As it is shown in figure 1, during brine waste pretreatment unit of the present utility model work, first brine waste inputs in water inlet Buffer Pool 1 and carries out homogenizing and all measure adjustment；After promote through former water elevator pump 19, in input channel blender 2, and mix in pipe-line mixer 2 with the lime cream that adds in pipe-line mixer 2 of metering；Input in Calx softening depositing reservoir 3 afterwards again, and the aluminum salt flocculant in depositing reservoir 3 and flocculation aid generation precipitation is softened with Calx, (swash plate inclined tube combination 31 is arranged in Calx softening depositing reservoir 3 to combine 31 at swash plate inclined tube, and its incline direction is in vertical direction with 45° angle) effect under, accelerate precipitation, form supernatant and be positioned at the dense water of precipitation bottom Calx softening depositing reservoir 3, removing the bivalence hardness ionses such as calcium ion therein and magnesium ion；In the supernatant input second pipe blender 4 of Calx softening depositing reservoir 3, and add salt acid for adjusting pH in second pipe blender 4 within the scope of 6.0-7.0 through metering；Staticly settle further in first compartment 51 of the primary soft water Buffer Pool 5 of input after regulating pH, after staticly settling, its supernatant flows into through downflow weir and carries out homogenizing in the second compartment 52 and all measure adjustment (the first compartment 51 and the second compartment 52 are separated by the dividing plate being positioned in the middle of primary soft water Buffer Pool 5, and downflow weir is positioned at the top of dividing plate)；So far the process step of primary soft brush treatment unit 01 is completed；
Wherein, the dense water of precipitation bottom Calx softening depositing reservoir 3 is input in belt vacuum defecator 22 through sludge filtration pump 20 and is filtered, gained filtrate is sent in water inlet Buffer Pool 1 through filtrate reflux pump 21, and gained sludge filter cake is transported outward by the slag car, so far completes the process step of sludge settling unit 04；Brine waste in water inlet Buffer Pool 1 is proceeded the process step of primary soft brush treatment unit 01 as above；
Softened for brine waste in second compartment 52 water elevator pump 6 is promoted feeding more medium filter 7 multiple filtration filtrates such as () more medium filter 7 internal filled stone sand, anthracites, filters and remove the polluter such as most of float and a small amount of colloid；Brine waste input intermediate water tank 8 after more medium filter 7 processes carries out homogenizing and all measures adjustment；After through ultrafiltrate pump 9 input for the self-cleaning filter 10 of secondary filter, retain after more medium filter 7 processes the polluters such as the bulky grain mechanical admixture of residual, a small amount of float；Brine waste input after self-cleaning filter 10 processes is for 10 millimeters of security filters 11 of three filtrations; the large particulate matter of residual in trap water; contaminated with the ion exchange resin that prevents follow-up weakly acidic cation exchanger 16 to greatest extent, protect the ultrafilter membrane of follow-up softening unit for treating water 03, NF membrane by irreversible damages such as machinery scuffings；So far the process step of mechanical purifying unit 02 is completed；
Being inputted by brine waste after 10 millimeters of security filters 11 process in ultrafiltration apparatus 12, mechanical admixture and the colloid pollution materials such as residual float therein are removed in ultrafiltration；Adjustment is all measured by the brine waste input ultrafiltration product water tank 13 after ultrafiltration apparatus 12 processes carries out water yield homogenizing；After input in nanofiltration device 15 through nanofiltration pump 14 pressure, most bivalence hardness ions is removed in nanofiltration, such as calcium ion and magnesium ion etc., thus removing hardness contaminated ion further, reduces hardness of water；Brine waste input weakly acidic cation exchanger 16 (adopting sodium form ion exchange resin) after nanofiltration device 15 processes, removes the bivalence hardness ionses such as calcium ion remaining in brine waste and magnesium ion, reduces hardness of water further；Brine waste after weakly acidic cation exchanger 16 processes is inputted soft water Buffer Pool 17 and all measures adjustment；So far the process step of softening unit for treating water 03 is completed；Namely brine waste pretreatment unit of the present utility model is adopted to complete the preprocessing process of brine waste；
The boosted pump 18 of brine waste in soft water Buffer Pool 17 inputs brine waste aftertreatment device, carries out subsequent treatment.
By the examples below this utility model is carried out nonrestrictive explanation.
Embodiment 1
Use brine waste pretreatment unit of the present utility model, the brine waste of certain enterprise is carried out pretreatment.
The brine waste of certain enterprise discharge is about 100m3/ h, in this brine waste, TDS (total dissolved solid) is at more than 1000mg/L, and total hardness is more than 1000mg/L.First this brine waste inputs water inlet Buffer Pool 1 carry out homogenizing and all measure adjustment；Carry out being sufficiently mixed reaction with lime slurry by former water elevator pump 19 input channel blender 2；The brine waste obtained after reacting with lime slurry continues reaction, clarification, precipitation by overbottom pressure input Calx softening depositing reservoir 3, and in order to accelerate flocculation sediment process, water inlet place softening depositing reservoir 3 at Calx adds aluminum salt flocculant, to accelerate its precipitation process.Soften the brine waste after reaction precipitation through Calx and be input to second pipe blender 4 below, add hydrochloric acid wherein to regulate pH value between 6.0-7.0, regulate the input primary soft water Buffer Pool 5 of the brine waste after PH and carry out homogenizing and all measure adjustment；Softened water elevator pump 6 is input to many media, filters 7 and carries out mechanical filter subsequently, and after filtering, the haze reduction of brine waste is to≤0.2NTU, and inputs intermediate water tank 8 and carry out homogenizing and all measure adjustment；Brine waste pressure input self-cleaning filter 10 after reducing hardness, adjustment PH and preliminary reduction turbidity is carried out further mechanical filter by ultrafiltrate pump 9, is input to 10 microns of cartridge filters 11 afterwards and carries out security personnel's filtration；In brine waste input ultrafiltration apparatus 12 after 10 microns of cartridge filters 11 process, remove major part colloid pollution material.Water tank 13 is produced in brine waste input ultrafiltration after ultrafiltration apparatus 12 processes, and sends in nanofiltration device 15 through nanofiltration pump 14, removes the bivalent cations such as about 80% calcium, magnesium；Brine waste after nanofiltration pump 14 processes is input to weakly acidic cation exchanger 16, remove the hardness contaminated ion in brine waste further, reduce hardness of water, through weakly acidic cation exchanger 16 process after brine waste hardness be reduced to≤10mg/L through weakly acidic cation exchanger 16 process after brine waste be input in soft water Buffer Pool 17 pass in and out homogenizing all measure adjustment, follow-up process device can be inputted then through elevator pump 18 and process.
Claims (9)
1. a brine waste pretreatment unit, it is characterised in that described device includes:
Primary soft brush treatment unit (01): be used for receiving brine waste, and remove bivalence hardness ions therein, float and colloid pollution material；
Mechanical purifying unit (02): for removing from the bulky grain mechanical admixture in the brine waste of primary soft brush treatment unit (01), float, colloid pollution material；
Softening unit for treating water (03): for removing the mechanical admixture of residual, float, colloid pollution material, bivalence hardness ions in the brine waste of mechanical purifying unit (02), to obtain pretreated brine waste；
Sludge settling unit (04): for solid-liquid separation will be carried out and the liquids recovery that solid-liquid separation obtained is circulated process to primary soft brush treatment unit (01) from the dense water that precipitates of primary soft brush treatment unit (01).
2. brine waste pretreatment unit as claimed in claim 1, it is characterised in that described primary soft brush treatment unit (01) including:
Water inlet Buffer Pool (1): receive brine waste, and it is carried out homogenizing all measure adjustment；
Pipe-line mixer (2): receive the brine waste from water inlet Buffer Pool (1) and the lime cream from the first throwing device, and in this pipe-line mixer (2), the two is mixed；
Former water elevator pump (19): for the brine waste from water inlet Buffer Pool (1) is conveyed into described pipe-line mixer (2)；
Calx softening depositing reservoir (3): receive the brine waste from described pipe-line mixer (2) and the flocculant from the second throwing device, and soften by the two mixing in depositing reservoir (3) at this Calx, to remove from the bivalence hardness ions in the brine waste of described pipe-line mixer (2)；
Second pipe blender (4): receive and mix the brine waste from described Calx softening depositing reservoir (3) and the hydrochloric acid from the 3rd throwing device, to regulate the pH of the brine waste softening depositing reservoir (3) from described Calx；
Primary soft water Buffer Pool (5): receive the brine waste from second pipe blender (4), and it is carried out homogenizing all measure adjustment.
3. brine waste pretreatment unit as claimed in claim 1, it is characterised in that described mechanical purifying unit (02) including:
More medium filter (7): be used for filtering from the float in the brine waste of primary soft brush treatment unit (01) and colloid pollution material；
Softening water elevator pump (6): for more medium filter (7) will be inputted from the brine waste of primary soft brush treatment unit (01)；
Intermediate water tank (8): receive from the brine waste of more medium filter (7), and it is carried out homogenizing all measure adjustment；
Self-cleaning filter (10): be used for filtering from the bulky grain mechanical admixture in the brine waste of intermediate water tank (8), float；
Ultrafiltrate pump (9): for self-cleaning filter (10) will be inputted from the brine waste of intermediate water tank (8)；
10 microns of cartridge filters (11): be used for retaining removing bulky grain mechanical admixture of residual in the brine waste of self-cleaning filter (10).
4. brine waste pretreatment unit as described in any one in claim 1-3, it is characterised in that described softening unit for treating water (03) including:
Ultrafiltration apparatus (12): remove float and the colloid pollution material of residual in the brine waste of mechanical purifying unit (02) for ultrafiltration；
Water tank (13) is produced in ultrafiltration: receive from the brine waste of ultrafiltration apparatus (12), and it is carried out homogenizing all measures adjustment；
Nanofiltration device (15): remove the bivalence hardness ions of residual in the brine waste producing water tank (13) from ultrafiltration for nanofiltration；
Nanofiltration pump (14): for brine waste input nanofiltration device (15) will produce water tank (13) from ultrafiltration；
Weakly acidic cation exchanger (16): for removing the bivalence hardness ions of residual in the brine waste of nanofiltration device (15) further；
Soft water Buffer Pool (17): receive from the brine waste of weakly acidic cation exchanger (16), and it is carried out homogenizing all measure adjustment, obtain pretreated waste water.
5. the brine waste pretreatment unit according to Claims 2 or 3, it is characterised in that described sludge settling unit (04) including:
Belt vacuum defecator (22): receive the dense water of precipitation softening depositing reservoir (3) bottom from Calx, and carry out solid-liquid separation；
Sludge filtration pump (20): the dense water of precipitation that Calx softens depositing reservoir (3) bottom is transported to described belt vacuum defecator (22)；
Filtrate reflux pump (21): receive the liquid obtained after solid-liquid separation from belt vacuum defecator (22), and be sent in described water inlet Buffer Pool (1).
6. brine waste pretreatment unit according to claim 2, it is characterised in that be provided with swash plate inclined tube combination (31) in described Calx softening depositing reservoir (3).
7. brine waste pretreatment unit according to claim 6, it is characterised in that described swash plate inclined tube combination (31) is set in vertical direction with 45° angle.
8. the brine waste pretreatment unit according to claim 2 or 6 or 7, it is characterised in that
Described primary soft water Buffer Pool (5) includes the first compartment (51) and the second compartment (52), described first compartment (51) and the second compartment (52) and is separated by the dividing plate being arranged at described primary soft water Buffer Pool (5) middle part；Described dividing plate top is provided with downflow weir；
Described first compartment (51), receives the brine waste softening depositing reservoir (3) from described Calx, and it is carried out homogenizing all measures adjustment；
Described second compartment (52), receives from the brine waste of described first compartment (51) through downflow weir, and it is carried out homogenizing all measures adjustment.
9. brine waste pretreatment unit according to claim 3, it is characterised in that
The filter element of described 10 microns of cartridge filters (11) is Nidus Vespae filter element.
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| CN201521072159.0U CN205347023U (en) | 2015-12-21 | 2015-12-21 | Contain useless pretreatment of water device of salt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069445A (en) * | 2018-01-24 | 2018-05-25 | 四川思达能环保科技有限公司 | A kind of sodium carbonate purification and impurity removal system and its method therefor |
| CN110144745A (en) * | 2019-05-13 | 2019-08-20 | 东莞顺裕纸业有限公司 | A kind of method of high salinity high rigidity waste paper sludge reconstruction antibacterial corrugated paper |
| CN111777220A (en) * | 2020-07-07 | 2020-10-16 | 南方汇通股份有限公司 | Novel softening treatment method for high-salinity and high-permanent-hardness wastewater |
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2015
- 2015-12-21 CN CN201521072159.0U patent/CN205347023U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069445A (en) * | 2018-01-24 | 2018-05-25 | 四川思达能环保科技有限公司 | A kind of sodium carbonate purification and impurity removal system and its method therefor |
| CN110144745A (en) * | 2019-05-13 | 2019-08-20 | 东莞顺裕纸业有限公司 | A kind of method of high salinity high rigidity waste paper sludge reconstruction antibacterial corrugated paper |
| CN110144745B (en) * | 2019-05-13 | 2021-01-22 | 东莞顺裕纸业有限公司 | Method for reproducing antibacterial corrugated paper from high-salinity high-hardness waste paper sludge |
| CN111777220A (en) * | 2020-07-07 | 2020-10-16 | 南方汇通股份有限公司 | Novel softening treatment method for high-salinity and high-permanent-hardness wastewater |
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