CN105600983A - Reduction treatment method for high-salt wastewater - Google Patents

Reduction treatment method for high-salt wastewater Download PDF

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Publication number
CN105600983A
CN105600983A CN201510980936.XA CN201510980936A CN105600983A CN 105600983 A CN105600983 A CN 105600983A CN 201510980936 A CN201510980936 A CN 201510980936A CN 105600983 A CN105600983 A CN 105600983A
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China
Prior art keywords
water
reverse osmosis
level
waste water
electric drive
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CN201510980936.XA
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Chinese (zh)
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CN105600983B (en
Inventor
张建飞
权秋红
赵庆
元西方
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Wuhai beijiete environmental protection Co.,Ltd.
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Bgt International Environment Technology Co Ltd
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Priority to CN201810189542.6A priority Critical patent/CN108328836B/en
Priority to CN201810192218.XA priority patent/CN108285221B/en
Priority to CN201510980936.XA priority patent/CN105600983B/en
Publication of CN105600983A publication Critical patent/CN105600983A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/001Upstream control, i.e. monitoring for predictive control
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/02Temperature
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents

Abstract

The invention relates to a reduction treatment method for high-salt wastewater. According to the method, the high-salt wastewater is pretreated and then subjected to reduction treatment, and reduction treatment comprises preliminary reduction treatment and deep concentration treatment; specifically, the pretreated wastewater is subjected to preliminary reduction treatment through a medium-pressure reverse osmosis device and a high-pressure reserve osmosis device, reverse osmosis production water and a reverse osmosis concentrated salt solution are obtained, the reverse osmosis concentrated salt solution is treated through a fed water adjustment and monitoring device and then sent to a first-level electric drive ion membrane unit and a second-level electric drive ion membrane for deep concentration treatment, and a high-concentration salt solution is obtained. With the adoption of the reduction treatment method for the high-salt wastewater, 95% or more of the wastewater solution can be recovered to a fresh water tank, and the wastewater is recycled.

Description

A kind of minimizing processing method of high slat-containing wastewater
Technical field
The present invention relates to Industrial Wastewater Treatment field, the high saliferous of one relating in particular in zero discharge of industrial waste water technology gives upThe minimizing processing method of water.
Background technology
In recent years, along with the fast development of the industries such as petrochemical industry, electric power, metallurgy, Coal Chemical Industry, in industrial processes, produceThe sewage quantity of the saliferous complicated components such as reverse osmosis concentrated water, trade effluent, circulating sewage and part process drain increases year by year, thisFinally how disposal and utilization has been subject to paying attention to widely the sewage of a little saliferous complicated components. Along with country is to enterprise's sewage dischargeControl subsists strictly, particularly in water resources shortage area, how rationally disposal and utilization good this part answer containing salt componentAssorted sewage, realizes wastewater zero discharge, to surrounding enviroment and the natural water of protecting us to depend on for existence, and further improvesIt is significant that the comprehensive utilization ratio of water resource is alleviated water resource pressure. At present, in waste water treating and reutilizing technology, anti-Infiltration embrane method has become the extremely important processing of one in the fields such as industrial cycle water treatment, waste water recycling, minimizing graduallyMeans.
Very fast for the treatment of the reverse osmosis technology development ratio of waste water at present, but this technical finesse complicated ingredient waste water existenceProblem is said benefit and is highlighted, and subject matter shows two aspects:
The one, reverse-osmosis membrane element has equipment with high desalinization to brine waste, and reverse-osmosis membrane element can reach under normal circumstancesSalt rejection rate more than 98%, make not undergo phase transition salt in water and impurity and more than 98% be trapped in the dense water that system producesIn. The recovery utilization rate of the general water of counter-infiltration water manufacturing system can only reach 75% left and right, still have an appointment 25% dense water of water manufacturing systemCan not recycle and need discharge. In dense water due to the complicated waste water of these saliferous, contain and comprise a large amount of calcium ions, magnesium ion, weightMetal ion, silicon ion and colloidal type material, and some wastewater from chemical industry contain a fairly large number of nondegradable organic matterWith inorganic salts and and the closely-related complicated ingredient of production technology, directly discharge meeting causes water pollution to the river entering.Although reverse-osmosis treated has realized minimizing processing to a certain degree, concentrated salts substances is still stayed in the dense water of eliminating,After at present such method of wastewater treatment generally being adopted to simple process, arrange outward or directly discharge, increasingly tight on surrounding enviroment impactHeavy, finally the disposal of this part reverse osmosis concentrated water is a difficult problem.
The 2nd, through the complicated waste water of saliferous of low pressure, medium and high pressure reverse osmosis concentration, recycling reverse-osmosis treated modeWhen processing, there is the Organic Pollution of membrane component and be tending towards saturated inorganic salts calcium-magnesium ratio compound and easily ask in the surperficial generation of film foulingTopic. Thereby, cause salt separating difficulty to strengthen and separating energy consumption increases, economy not good with the problem such as reliability is lower.
For example Chinese patent CN102923876A discloses a kind of tube type filter membrance method processing heavy metal wastewater thereby heavy metal and has returnedReceive and waste water reuse system. This system is by waste water being carried out to pH adjusting, the pretreatment of tubular type micro-filtration, then process reverse osmosis unit entersRow waste water reclaims. Realize filtering waste particles polluter, and can not divulge the phenomenon of mud particle; Micro-filtration membrane canBear the cleaning of acidity, alkalescence, bleaching and oxidation medicament, there is the longer operating period through the micro-filtration membrane film pipe cleaning. ThisBright flow process is fairly simple, operates convenient, easily realizes automation control; Floor space is little, can save basisThe investment of construction period, drops into but also can save medicament. But this system is only carried out pretreatment and counter-infiltration place to waste waterReason, the water resource recovery utilization rate of waste water is lower, has larger water resource waste problem, and pending tail washings accounts for waste water simultaneouslyLarge percentage, has increased the energy consumption of processing tail washings, has increased cost for wastewater treatment, and environmental issue.
Summary of the invention
For the deficiency of prior art, the invention provides a kind of minimizing processing method of high slat-containing wastewater, described sideMethod is that high slat-containing wastewater is carried out carrying out preliminary minimizing processing and degree of depth concentration after pretreatment again, the concentrated place of the described degree of depthThe water inflow control system of reason be by process through preliminary minimizing chlorine residue in the reverse osmosis concentrated solution of high pressure generating, heavy metal fromSon and colloid, after active carbon filter and resin container absorption, filter small suspension and colloid through the 3rd cartridge filterFall, and the waste water after filtering is delivered to into water and adjusted monitoring device, based on one-level electrically-driven ion in degree of depth concentration processWaste water information after the described filtration of film unit water inlet index and the monitoring of described water inlet adjustment monitoring device, adjusts monitoring in water inletUnder the control of device, use at least one place in thermostat, active carbon filter, resin container and the 3rd cartridge filterReason device carries out circular treatment at least one times to the waste water after filtering, and drives until the waste water after described filtration reaches described one-level electricityMoving ionic membrane unit water inlet index.
According to a preferred embodiment, described water inlet is adjusted monitoring device and is comprised: for monitoring the temperature of wastewater temperatureDetector, for monitor the chlorion detector of waste water chlorine ion concentration, for the heavy metal of monitoring concentration of heavy metal ion fromSub-detector, for monitoring the fine particle detector of colloid and small suspension content; For regulating the water temperature of wastewater temperatureAdjuster, flow into the first row water valve of one-level electrically-driven ion film unit for controlling waste water, for controlling waste water flowing water activityThe second row water valve of carbon filter, enter the 3rd draining valve of resin container, flow into the 3rd for controlling waste water for controlling wastewater streamsThe 4th draining valve of cartridge filter; For receiving the distributed A/D acquisition module of monitored data), for the list of data processingSheet machine, for controlling the PC terminal of described single-chip microcomputer and the distributed digital input/output module of feedback control information.
According to a preferred embodiment, described in described water inlet adjustment monitoring device is incited somebody to action by distributed A/D acquisition moduleThe communication that hygrosensor, chlorion detector, heavy metal ion detector and fine particle detector detect extremelyDescribed single-chip microcomputer, the water inlet of the one-level electrically-driven ion film unit by described single-chip microcomputer based on the input of PC terminal requires described prisonMeasurement information carries out data processing, and by result through distributed digital input/output module feed back to described thermostat,First row water valve, second row water valve, the 3rd draining valve, the 4th draining valve.
According to a preferred embodiment, described one-level electrically-driven ion film unit water inlet index is: inflow temperature 5~40DEG C; Contents of residual chlorine is not more than 0.05mg/L; Heavy metal ion content is not more than 0.1mg/L; Sewage quality index S DI is not more than3.0。
According to a preferred embodiment, described preliminary minimizing processing comprises the steps: through pretreated waste waterAfter filtering by the first cartridge filter, send into described middle pressure reverse osmosis unit; Waste water is after described middle pressure reverse osmosis unit is processedObtain middle pressure reverse osmosis produced water and the reverse osmosis concentrated solution of middle pressure, wherein, described middle pressure reverse osmosis produced water is sent into two-pass reverse osmosis dressPut, the reverse osmosis concentrated solution of described middle pressure is delivered to described high pressure reverse osmosis unit after the second cartridge filter filters; Described processThe reverse osmosis concentrated solution of middle pressure of filter obtains high pressure reverse osmosis produced water and high pressure counter-infiltration after described high pressure reverse osmosis unit is processedConcentrated solution, wherein, described high pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus, and the reverse osmosis concentrated solution of described high pressure carries out the degree of depthConcentration.
According to a preferred embodiment, described degree of depth concentration comprises the steps: that described high pressure is reverse osmosis concentrated moltenLiquid is delivered to one-level electrically-driven ion film unit and is carried out degree of depth concentration after water inflow control system is processed; Drive through described one-level electricityAfter moving ionic membrane cell processing, obtain the dense saline solution of one-level electric drive and one-level electric drive product water, wherein, described one-level electric drive is producedWater enters second level reverse osmosis apparatus, and the dense saline solution of described one-level electric drive is sent into secondary electrically-driven ion film list through the 3rd booster water pumpUnit; After described secondary electrically-driven ion film unit is processed, obtain the dense saline solution of secondary electric drive and secondary electric drive and produce water, described inSecondary electric drive is produced water and is sent into middle setting-out pond, and described secondary electric drive dense saline solution is sent into the second strong brine case.
According to a preferred embodiment, the product water of sending into described second level reverse osmosis apparatus obtains secondary reverse osmosis after treatmentThoroughly produce water and the dense saline solution of two-pass reverse osmosis, wherein, described two-pass reverse osmosis produces water and sends into fresh water water tank, and described two-pass reverse osmosis is denseSaline solution is delivered to the first intermediate pool.
According to a preferred embodiment, described middle pressure reverse osmosis unit employing width of flow path is 1.524~1.778mmMiddle press mold element, described high pressure reverse osmosis unit adopts the high-pressure membrane element that width of flow path is 1.905~2.159mm.
According to a preferred embodiment, described active carbon filter for adsorbing, do not remove by preliminary minimizing processChlorine adsorbs small organic molecule, colloid and heavy metal ion simultaneously; Described resin container has ion exchange resin, for absorptionHeavy metal ion after described active carbon filter is processed in solution; Described the 3rd cartridge filter is used for filtering solutionSmall suspension and colloid.
According to a preferred embodiment, described Wastewater Pretreatment, preliminary minimizing processing and degree of depth concentration compriseFollowing steps: by high slat-containing wastewater carry out homogeneous all measure add after processing lime or NaOH, sodium carbonate, aluminium polychloride andCoagulant and the softening agent of more than one in polyacrylamide precipitate, and to adjust waste water be alkaline environment, sediment rowEnter sludge-tank, waste water after precipitation is sent into tubular type microstrainer and filter;
Sediment in described sludge-tank obtains mud cake and brine waste, institute after sludge dehydration device carries out mud-water separationState mud cake and carry out dewatered sludge processing, described brine waste is sent in regulating reservoir and is mixed with waste water stoste;
Supernatant after described tubular type microstrainer filters is sent into candle filter, after described tubular type microstrainer filtersChemical precipitates enters highly dense pond; Product water after described candle filter filters is sent into the first intermediate pool to carry out minimizingProcess;
In described the first intermediate pool through pretreated waste water by the first cartridge filter filtering waste water suspension andAfter colloid, send into described middle pressure reverse osmosis unit;
Waste water obtains middle pressure reverse osmosis produced water and the reverse osmosis concentrated solution of middle pressure after described middle pressure reverse osmosis unit is processed, itsIn, described middle pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus, and the reverse osmosis concentrated solution of described middle pressure is through the second cartridge filterAfter filtration, deliver to described high pressure reverse osmosis unit;
The reverse osmosis concentrated solution of described filtered middle pressure obtains high pressure counter-infiltration after described high pressure reverse osmosis unit is processedProduce water and the reverse osmosis concentrated solution of high pressure, wherein, described high pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus, described high pressure reverse osmosisConcentrated solution is delivered to the concentrated water inflow control system of the degree of depth thoroughly;
The concentrated water inflow control system of the described degree of depth is to process the reverse osmosis concentrated solution of high pressure generating through preliminary minimizingIn chlorine residue, heavy metal ion and colloid after the absorption of active carbon filter and resin container, through the 3rd cartridge filter by smallSuspension and colloid filter out, and the waste water after filtering is delivered to into water and adjusted monitoring device;
Based on one-level electrically-driven ion film unit water inlet index in degree of depth concentration process and described water inlet adjustment monitoringDevice monitoring arrives the waste water information after described filtration, then ensures public security through thermostat, active carbon filter, resin container and the 3rdAt least one treating apparatus in filter is realized and is processed at least one times described waste water after filtering, until after described filtrationWaste water reaches described one-level electrically-driven ion film unit water inlet index;
The reverse osmosis concentrated solution of described high pressure is delivered to one-level electrically-driven ion film after the concentrated water inflow control system of the degree of depth is processedUnit carries out degree of depth concentration; After processing, described one-level electrically-driven ion film unit obtains the dense saline solution of one-level electric drive and oneLevel electric drive is produced water, and wherein, described one-level electric drive is produced water and entered second level reverse osmosis apparatus, the dense saline solution warp of described one-level electric driveThe 3rd booster water pump is sent into secondary electrically-driven ion film unit;
After described secondary electrically-driven ion film unit is processed, obtain the dense saline solution of secondary electric drive and secondary electric drive and produce water,Described secondary electric drive is produced water and is sent into middle setting-out pond, and described secondary electric drive dense saline solution is sent into the second strong brine case;
The product water of sending into described second level reverse osmosis apparatus obtains that two-pass reverse osmosis produces water and two-pass reverse osmosis is dense after treatmentSaline solution, wherein, described two-pass reverse osmosis produces water and sends into fresh water water tank, and the dense saline solution of described two-pass reverse osmosis is delivered to the first intermediate pool;
Described high slat-containing wastewater is (after described pretreatment, preliminary minimizing processing and degree of depth concentration, described in reclaimingWaste water solution more than 95% to fresh water water tank, the product water that described fresh water water tank is collected is sent into reuse water tank to realize waste water reuse.
The present invention has the following advantages:
(1) in the preliminary minimizing process of waste water of the present invention, waste water, under alkali condition, can suppress under this conditionThe fouling of film surface silicon and organic contamination problem.
(2) high-pressure membrane original paper of the present invention has the feature of super large runner, and special runner and structural design make counter-infiltrationSystem more difficult generation ion fouling and organic pollution problem.
(3) water inlet adjusting device of the present invention can effectively regulate wastewater temperature, realizes one-level electrically-driven ion film unitUnder optimum temperature, work, improve its producing water ratio.
(4) water inlet adjusting device of the present invention can effectively be avoided the calcium ions and magnesium ions pollution problem of electrically-driven ion film and a huge sum of moneyBelong to ion in film surface scale problem.
(5), by this wastewater reduction disposal methods, recyclable 95% above high-quality desalted water is back to produces dressPut, for the follow-up water yield significantly decrement treatment create favorable conditions.
Brief description of the drawings
Fig. 1 is high slat-containing wastewater process chart of the present invention;
Fig. 2 is that high slat-containing wastewater of the present invention is processed an optimal way flow chart; With
Fig. 3 is water inlet adjusting device module diagram of the present invention.
Reference numerals list
101: high slat-containing wastewater 102: regulating reservoir 103: elevator pump
104: 105: the first booster pumps 106 in highly dense pond: tubular type microstrainer
107: 109: the second booster pumps of 108: the first intermediate pool of candle filter
110: the first cartridge filters 111: middle pressure reverse osmosis unit 112: middle setting-out pond
114: the second cartridge filters 115 of 113: the three booster pumps: high pressure reverse osmosis unit
117: the first booster water pumps 118 of 116: the second intermediate pool: active carbon filter
119: resin container 120: 121: the second booster water pumps of intermediate water tank
122: the three cartridge filters 123: 124: the first strong brine casees of one-level electrically-driven ion film unit
125: the three booster water pumps 126: 127: the second strong brine casees of secondary electrically-driven ion film unit
128: second level reverse osmosis apparatus 129: fresh water water tank 130: reuse water tank
131: salt evaporated crystallization device 132: crystal salt 133: sludge-tank
134: sludge dehydration device 135: mud cake 136: chemicals dosing plant
200: monitoring device 201 is adjusted in water inlet: hygrosensor 202: chlorion detector
203: heavy metal ion detector 204: fine particle detector 205: thermostat
206: first row water valve 207: 208: the three draining valves of second row water valve
209: the four draining valves 210: distributed A/D acquisition module 211: distributed digital is defeatedEnter output module
212: single-chip microcomputer 213:PC terminal
Detailed description of the invention
Be elaborated below in conjunction with drawings and Examples.
Fig. 1 shows wastewater treatment process figure of the present invention. As shown in Figure 1, high slat-containing wastewater processing of the present invention comprisesThe processing stage of Wastewater Pretreatment stage, the preliminary minimizing of waste water, waste water advanced enriching stage and waste water evaporative crystallization stage.
Referring to Fig. 1, Wastewater Pretreatment stage apparatus of the present invention comprises regulating reservoir 102, elevator pump 103, highly dense pond 104, theOne booster pump 105, tubular type microstrainer 106, candle filter 107, the first intermediate pool 108, sludge-tank 133, sludge dewatering dressPut 134, chemicals dosing plant 136. Regulating reservoir 102 is connected with elevator pump 103, for high slat-containing wastewater 101 being carried out to all amount places of homogeneousReason. Elevator pump 103 will carry out homogeneous and all measure high slat-containing wastewater after treatment and deliver to highly dense pond 104. Chemicals dosing plant 136 and highly dense pond104 are connected, and for adding coagulant and softening agent to the waste water in highly dense pond 104, waste water are adjusted into alkaline environment, alkali simultaneouslyProperty environment there is the trend that suppresses film surface and occur silicon fouling and organic contamination. Highly dense pond 104 also with the first booster pump 105 and dirtMud sump 133 is connected. Highly dense pond 104 is for realizing coagulation, the softening process of waste water and completing the turbid precipitation process of falling of waste water. HeavyThe chemical sludge forming sediment enters sludge-tank 133, and all the other exhausted waters are delivered to tubular type microstrainer 106 through the first booster pump 105. Sludge-tank133 are connected with sludge dehydration device 134. Sludge-tank 133 carries out sending into after mud adjustment processing to the chemical sludge entering whereinSludge dehydration device 134 is processed. Sludge dehydration device 134 is connected with regulating reservoir 102. Sludge dehydration device 134 is to sending intoMud wherein carries out mud-water separation processing. Sludge dehydration device 134 separates the waste water producing and sends into regulating reservoir 102 and raw wastewaterMix and process again. Sludge dehydration device 134 separates the mud cake 135 producing and finally carries out dewatered sludge processing. Tubular type microstrainer 106 withCandle filter 107 is connected with highly dense pond 104. Tubular type microstrainer 106 is for delivering to the coagulation colloidal substance filtering of waste waterHighly dense pond 104, after filtering, waste water is delivered to candle filter 107. Candle filter 107 is connected with the first intermediate pool 108, filter coreFilter 107 is delivered to the first intermediate pool 108 by sending into after waste water wherein filters.
Refer again to Fig. 1, the processing stage of the preliminary minimizing of waste water of the present invention, device comprises the second booster pump 109, the first guarantorsPeace filter 110, middle pressure is divided permeability apparatus 111, middle setting-out pond 112, the three booster pump 113, the second cartridge filters 114, heightPress point permeability apparatus 115, the second intermediate pool 116, second level reverse osmosis apparatus 128, fresh water water tank 129, reuse water tank 130. TheTwo booster pumps 109 are connected with the first cartridge filter 110. The second booster pump 109 is for by defeated the waste water of the first intermediate pool 108Deliver to the first cartridge filter 110. The first cartridge filter 110 is connected with middle pressure reverse osmosis unit 111. The first cartridge filter110 for the small suspension of filtering waste water, and the waste water after filtering is delivered to middle pressure reverse osmosis unit 111. Middle pressure counter-infiltrationDevice 111 is connected with second level reverse osmosis apparatus 128 with middle setting-out pond 112. Middle pressure counter-infiltration fills 111 employing width of flow pathsThe middle press mold element of 1.524~1.778mm. Middle pressure reverse osmosis unit 111 is for to waste water pressurization, and carries out reverse-osmosis treated.Middle pressure reverse osmosis produced water after treatment enters second level reverse osmosis apparatus 128, and after processing, the reverse osmosis concentrated solution of middle pressure is delivered to middle setting-outPond 112. Middle setting-out pond 112 is connected with the 3rd booster pump 113. The 3rd booster pump 113 is connected with the second cartridge filter 114. TheThree booster pumps 113 are for delivering to the second cartridge filter 114 by the reverse osmosis concentrated solution of middle pressure in setting-out pond 112. Second protectsPeace filter 114 is connected with high pressure reverse osmosis unit 115. The second cartridge filter 114 is for filtering out the small suspension of waste waterThing, and waste water after filtration is delivered to high pressure reverse osmosis unit 115. High pressure reverse osmosis unit 115 and the second intermediate pool 116 and twoLevel reverse osmosis unit 128 is connected. It is the high pressure membrane element of 1.905~2.159mm that high pressure reverse osmosis unit 115 adopts width of flow pathPart. High pressure reverse osmosis unit 115 pressurizes to the waste water of sending into wherein, and completes waste-water high-pressure reverse-osmosis treated, after processingHigh pressure reverse osmosis produced water is delivered to second level reverse osmosis apparatus 128, and after processing, the reverse osmosis concentrated solution of high pressure is sent into the second intermediate pool116. Second level reverse osmosis apparatus 128 is connected with fresh water water tank 129. Second level reverse osmosis apparatus 128 is for to entering product water whereinCarry out secondary reverse-osmosis treated, after processing, gained two-pass reverse osmosis produces water and delivers to reuse water tank 130 through fresh water water tank 129, realizesWater resource recycling, the rear dense saline solution of two-pass reverse osmosis of processing is delivered to the first intermediate pool 108 and is mixed with raw wastewater.
Refer again to Fig. 1, the waste water advanced concentration stage apparatus of the present invention comprises the first booster water pump 117, active carbonFilter 118, resin container 119, intermediate water tank 120, the second booster water pump 121, the three cartridge filters 122, one-level electric driveIonic membrane unit 123, the first strong brine case 124, the three booster water pumps 125, secondary electrically-driven ion film unit 126, the second is denseBrine tank 127, second level reverse osmosis apparatus 128, fresh water water tank 129, reuse water tank 130. The first booster water pump 117 and active carbon mistakeFilter 118 is connected. The first booster water pump 117 is for delivering to active carbon by reverse osmosis concentrated the high pressure of the second intermediate pool 116 solutionFilter 118. Active carbon filter 118 is connected with resin container 119. Active carbon filter 118 is for adsorbing preliminary minimizingChlorine residue in journey, prevents the remaining oxygen poisoning pollution of ion exchange resin free state, also adsorbs small organic molecule, colloid and heavy simultaneouslyMetal ion, and the concentrated solution after absorption is delivered to resin container 119. Resin container 119 is connected with intermediate water tank 120. ResinTank 119 is for adsorbing the heavy metal ion through active carbon filter 118 solution after treatment, and solution after treatment is sent intoIntermediate water tank 120. Intermediate water tank 120 is connected with the second booster water pump 121. The second booster water pump 121 and the 3rd cartridge filter122 are connected. The second booster water pump 121 is for delivering to the solution of intermediate water tank 120 the 3rd cartridge filter 122. The 3rd security personnelFilter 122 is connected with one-level electrically-driven ion film unit 123. The 3rd cartridge filter 122 is small for filtering out solutionSuspension, and waste water after filtration is delivered to one-level electrically-driven ion film unit 123. One-level electrically-driven ion film unit 123 andOne strong brine case 124 is connected with second level reverse osmosis apparatus 128. One-level electrically-driven ion film unit 123 is for entering and follow waste waterThe processing of ring desalination and concentration, obtains one-level electric drive product water and sends into second level reverse osmosis apparatus 128 after processing, obtain one-level electricity after processingDrive dense saline solution to enter the first strong brine case 124. Second level reverse osmosis apparatus 128 is connected with fresh water water tank 129. Two-pass reverse osmosis dressPut 128 for the product water entering is wherein carried out to secondary reverse-osmosis treated, after processing, gained two-pass reverse osmosis produces water through fresh water waterCase 129 is delivered to reuse water tank 130 and is realized water resource recycling, and after processing, the dense saline solution of two-pass reverse osmosis is delivered to the first intermediate pool108 mix with raw wastewater. The first strong brine case 124 is connected with the 3rd booster water pump 125. The 3rd booster water pump 125 and secondary electricityDrive ionic membrane unit 126 to be connected. The 3rd booster water pump 125 is for by the dense salt of one-level electric drive of the first strong brine case 124Liquid is delivered to secondary electrically-driven ion film unit 126. Secondary electrically-driven ion film unit 126 and the second strong brine case 127 and middle pressurePond 112 is connected. Secondary electrically-driven ion film unit 126 is for desalination and concentration wastewater treatment that waste water is circulated, after processingObtain secondary electric drive and produce water and send into middle setting-out pond 112 and press reverse osmosis concentrated solution to mix with Chi Zhongzhong, after processing, obtain secondary electricityDrive dense saline solution to enter the second strong brine case 127. The second strong brine case 127 is connected with salt evaporated crystallization device 131. The second dense saltWater tank 127 is for sending dense secondary electric drive saline solution into evaporated crystallization device 131.
Referring to Fig. 2, be a preferred embodiment in the waste water advanced concentration of the present invention stage, this stage apparatus comprisesThe first booster water pump 117, active carbon filter 118, resin container 119, intermediate water tank 120, the second booster water pumps 111, the three are protectedPeace filter 122, monitoring device 200, one-level electrically-driven ion film unit 123, the first strong brine casees 124, the three are adjusted in water inletBooster water pump 125, secondary electrically-driven ion film unit 126, the second strong brine casees 127, second level reverse osmosis apparatus 128, fresh water waterCase 129, reuse water tank 130. Shown in Fig. 3, water inlet is adjusted monitoring device 200 and is comprised: hygrosensor 201, chlorion is visitedSurvey device 202, heavy metal ion detector 203, fine particle detector 204, thermostat 205, first row water valve 206, theTwo draining valve 207, the three draining valve 208, the four draining valves 209, distributed A/D acquisition module 210, distributed digital inputOutput module 211, single-chip microcomputer 212, PC terminal 213.
The first booster water pump 117 is connected with active carbon filter 118. The first booster water pump 117 is for by water in the middle of secondThe reverse osmosis concentrated solution of high pressure in pond 116 is delivered to active carbon filter 118. Active carbon filter 118 is connected with resin container 119. LiveProperty carbon filter 118 for adsorbing the chlorine residue of preliminary minimizing process, prevent the remaining oxygen poisoning dirt of ion exchange resin free stateDye, also adsorb small organic molecule, colloid and heavy metal ion simultaneously, and the concentrated solution after absorption is delivered to resin container119. Resin container 119 is connected with intermediate water tank 120. Resin container 119 is for adsorbing through active carbon filter 118 solution after treatmentIn heavy metal ion, and solution after treatment is sent into intermediate water tank 120. Intermediate water tank 120 and the second booster water pump 121 phasesConnect. The second booster water pump 121 is connected with the 3rd cartridge filter 122. The second booster water pump 121 is for by intermediate water tank 120Solution is delivered to the 3rd cartridge filter 122. The 3rd cartridge filter 122 is adjusted monitoring device 200 with water inlet and is connected. The 3rd security personnelFilter 122 is for filtering out the small suspension of solution, and waste water after filtration is delivered to into water and adjusted monitoring device 200. EnterWater is adjusted monitoring device 200 and is connected with one-level electrically-driven ion film unit 123 by first row water valve 206. Monitoring is adjusted in water inletDevice 200 is connected with active carbon filter 118 by second row water valve 207. Water inlet is adjusted monitoring device 200 by the 3rd drainingValve 208 is connected with resin container 119. Water inlet is adjusted monitoring device 200 by the 4th draining valve 209 and the 3rd cartridge filter 122Be connected. Useless that monitoring device 200 collects described hygrosensor 201 by distributed A/D acquisition module 210 adjusted in water inletAqueous temperature communication is to single-chip microcomputer. Water inlet adjust monitoring device 200 by distributed A/D acquisition module 210 by chlorine fromThe waste water solution chlorine ion concentration communication that sub-detector 202 collects is to single-chip microcomputer 212. Monitoring device 200 is adjusted in water inletWaste water solution concentration of heavy metal ion letter heavy metal ion detector 203 being collected by distributed A/D acquisition module 210Breath transfers to single-chip microcomputer 212. Water inlet is adjusted monitoring device 200 and is passed through distributed A/D acquisition module 210 by fine particle detectorThe 204 waste water solution concentration of heavy metal ion communications that collect are to single-chip microcomputer 212. Defeated to single-chip microcomputer 212 by PC terminal 213Enter the water inlet index of one-level electrically-driven ion film unit 123. The one-level electric drive that single-chip microcomputer 212 is inputted based on PC terminal 213 fromThe water inlet of sub-film unit 123 requires the described waste water solution temperature monitoring, chloride ion content, heavy metal ion content and micro-Small-particle content information is carried out data processing. Single-chip microcomputer 212 by data processed result through distributed digital input/output module 211Feed back to described thermostat 205, and control waste water solution temperature by thermostat 205. Single-chip microcomputer 212 is by data placeReason result feeds back to second row water valve 207 through distributed digital input/output module 211, and by controlling second row water valve 207Thereby control and whether waste water solution is drained into active carbon filter 118 processing that again dechlorinates. Single-chip microcomputer 212 is by data processingResult feeds back to the 3rd draining valve 208 through distributed digital input/output module 211, and by control the 3rd draining valve 208 fromWhether waste water solution is entered to resin container 119 and carry out again except metal ion treatment and control. Single-chip microcomputer 212 is tied data processingFruit feeds back to the 4th draining valve 209 through distributed digital input/output module 211, thereby and by controlling the 4th draining valve 209Control and whether waste water solution inflow the 3rd cartridge filter 122 is carried out to removal of impurities processing again. Until monitoring device is adjusted in water inlet200 waste water that monitor reach the water inlet index of one-level electrically-driven ion film unit 123, and single-chip microcomputer 212 is by data processed resultFeed back to first row water valve 206 through distributed digital input/output module 211, and it is molten to control waste water by first row water valve 206Liquid flows into one-level electrically-driven ion film unit 123. One-level electrically-driven ion film unit 123 and the first strong brine case 124 and secondaryReverse osmosis unit 128 is connected. One-level electrically-driven ion film unit 123, for waste water being entered to the processing of circulation desalination and concentration, is processedAfter obtain one-level electric drive produce water send into second level reverse osmosis apparatus 128, after processing, obtain the dense saline solution of one-level electric drive and enter firstStrong brine case 124. Second level reverse osmosis apparatus 128 is connected with fresh water water tank 129. Second level reverse osmosis apparatus 128 is for to entering itIn product water carry out secondary reverse-osmosis treated, process after gained two-pass reverse osmosis produce water deliver to reuse water tank through fresh water water tank 129130 realize water resource recycling, and the rear dense saline solution of two-pass reverse osmosis of processing is delivered to the first intermediate pool 108 and mixed with raw wastewater. TheOne strong brine case 124 is connected with the 3rd booster water pump 125. The 3rd booster water pump 125 and secondary electrically-driven ion film unit 126 phasesConnect. The 3rd booster water pump 125 is for delivering to secondary electrically-driven ion by the dense saline solution of one-level electric drive of the first strong brine case 124Film unit 126. Secondary electrically-driven ion film unit 126 is connected with middle setting-out pond 112 with the second strong brine case 127. Secondary electricity drivesMoving ionic membrane unit 126, for desalination and concentration wastewater treatment that waste water is circulated, obtains secondary electric drive product water and send after processingEnter middle setting-out pond 112 and press reverse osmosis concentrated solution to mix with Chi Zhongzhong, after processing, obtain the dense saline solution of secondary electric drive and enter second denseBrine tank 127. The second strong brine case 127 is connected with salt evaporated crystallization device 131. The second strong brine case 127 is for by secondary electricityDrive dense saline solution to send into evaporated crystallization device 131.
Referring to Fig. 2, wastewater treatment of the present invention also comprises the waste water evaporative crystallization stage, and waste water evaporated crystallization device comprises saltEvaporated crystallization device 131, fresh water water tank 129, reuse water tank 130. Salt evaporated crystallization device 131 is connected with fresh water water tank 129. WithIn the dense saline solution of secondary electric drive of sending into is wherein carried out to evaporative crystallization processing, process the product water producing and send through fresh water water tank 129Enter reuse water tank 130 for realizing water resource reuse, process the crystal salt 132 producing and carry out again salt integrated treatment.
Embodiment 1
In conjunction with Fig. 1, Wastewater Pretreatment process of the present invention is described. By regulating reservoir 102, high slat-containing wastewater 101 is carried out allMatter is all measured to regulate and is processed. High slat-containing wastewater 101 is from water in water circulating system with water and production technology draining in trade effluent processing.By elevator pump 103, adjusting processed waste water is sent into highly dense pond 104. Add to highly dense pond 104 successively by chemicals dosing plant 136Lime or NaOH, sodium carbonate, aluminium polychloride, polyacrylamide, and waste water is adjusted into alkaline environment. The hydrogen-oxygen addingChange sodium and sodium carbonate for waste water is softened to processing, NaOH is mixed with the solution of 20% concentration, and chemical feeding quantity is 1.5g/L, sodium carbonate is mixed with the solution of 15% concentration, and chemical feeding quantity is 3g/L, and the aluminium polychloride adding and polyacrylamide are for rightWaste water carries out coagulating treatment, and aluminium polychloride is made into the solution of 20% concentration, carries out dosing, polyacrylamide according to the amount of 30mg/LAmine is made into the solution of 0.3% concentration, carries out dosing according to the amount of 3mg/L, and NaOH, sodium carbonate, aluminium polychloride, poly-The chemical feeding quantity of acrylamide is unsuitable excessive, need adjust according to the each ion concentration situation of change of the actual water inlet of waste water, otherwise easilyCause reverse osmosis membrane and electrically-driven ion film to pollute, affect the service life of film. Waste water stoste to described highly dense pond 104 addsAfter coagulant and softening agent, precipitate, sediment enters sludge-tank 133. Waste water stoste after precipitation is sent into tubular type microstrainer106 filter. Waste water time of staying in tubular type microstrainer 106 is 2.5 hours, and under natural subsidence effect, supernatant is logicalCross tubular type microstrainer 106 and enter candle filter 107, chemical precipitates is sent into highly dense pond and is carried out sedimentation and enter sludge-tank 133. InstituteState waste water stoste in candle filter 107, through filtering, product water is sent into the first intermediate pool 108, so far complete Wastewater PretreatmentProcess.
Embodiment 2
In conjunction with Fig. 2 and Fig. 3, wastewater reduction processing procedure of the present invention is described. For realizing waste water recycling, waste waterMinimizing process comprises the preliminary minimizing processing of waste water and waste water advanced concentration process.
The second booster pump 109 is delivered to the first cartridge filter by completing pretreated waste water in the first intermediate pool 108110. The first cartridge filter 110, for the small suspension of filtering waste water, is sent waste water after filtration into middle pressure reverse osmosis unit111。
According to one preferred embodiment, it is that aromatic polyamide is compound that middle pressure reverse osmosis unit 111 adopts membrane materialMaterial runner width is the middle press mold element of 1.651mm, is under 2.0~3.5MPa condition, waste water to be carried out instead at operating pressureInfiltration is processed, and special runner and structural design make middle pressure reverse osmosis unit 111 be difficult for occurring ion fouling and organicDirty stifled. Middle its waste water rate of recovery of pressure reverse-osmosis treated process is greater than 70%, can hold back 97.5% salts substances, can be by averageTDS is that the former water of 6500mg/L is concentrated to TDS and is greater than 21600mg/L. The middle pressure reverse osmosis produced water reclaiming is sent into two-pass reverse osmosisDevice 128, the reverse osmosis concentrated solution of middle pressure is delivered to middle setting-out pond 112, and middle pressure reverse osmosis produced water is through two-pass reverse osmosis processing, and secondary is anti-Infiltration is produced water and is entered fresh water water tank 129, and two-pass reverse osmosis concentrated solution is delivered to the first intermediate pool 8 again.
The reverse osmosis concentrated solution of middle pressure filters through the second cartridge filter 114, delivers to high pressure reverse osmosis unit 115. According to onePreferred embodiment individual, it is that aromatic polyamide composite runner width is that high pressure reverse osmosis unit 115 adopts membrane materialThe high-pressure membrane element of 2.032mm, under the condition that is 3.5~4.5MPa at operating pressure to the reverse osmosis concentrated solution of filtered middle pressureCarry out high pressure reverse-osmosis treated, special runner and structural design, make high pressure reverse osmosis unit 111 be difficult for occurring ion foulingStifled with organic dirt. Its waste water rate of recovery of high pressure reverse-osmosis treated process is greater than 65%, can hold back more than 97.2% saltMaterial, the former water that can be 21600mg/L by average T DS is concentrated to TDS and is greater than 50000mg/L. The high pressure reverse osmosis produced water reclaimingSend into second level reverse osmosis apparatus 28 and carry out two-pass reverse osmosis processing, two-pass reverse osmosis produces water and enters fresh water water tank 129, secondary reverse osmosisThoroughly concentrated solution is delivered to the first intermediate pool 108 again, and it is pending dark that the reverse osmosis concentrated solution of high pressure is delivered to the second intermediate pool 116 etc.Degree concentration.
According to one preferred embodiment, the reverse osmosis concentrated solution of high pressure is through active carbon filter 118 and resin container 119 placesReason is delivered to into water and is adjusted monitoring device 200 after security filter 122 filters.
According to high-quality preferred embodiment, one-level electrically-driven ion film unit 123 index of intaking is: inflow temperature 5~40 DEG C; Contents of residual chlorine is not more than 0.05mg/L; Heavy metal ion content is not more than 0.1mg/L; Sewage quality index S DI is not more than3.0。
Water inlet is adjusted monitoring device 200 and by distributed A/D acquisition module 210, hygrosensor 201, chlorion is surveyedThe communication that device 202, heavy metal ion detector 203 and fine particle detector 204 detect is to described single-chip microcomputer212, the water inlet of the one-level electrically-driven ion film unit 123 of being inputted based on PC terminal 213 by described single-chip microcomputer 212 requires describedMonitoring information carries out data processing.
Single-chip microcomputer 212 feeds back to described water temperature by data processed result through distributed digital input/output module 211 and regulatesDevice 205, and control waste water solution temperature by thermostat 205. Single-chip microcomputer 212 by data processed result through distributed numberWhether word input/output module 211 feeds back to second row water valve 207, thereby and will give up by controlling 207 controls of second row water valveThe aqueous solution drains into active carbon filter 118 processing that again dechlorinates. Single-chip microcomputer 212 by data processed result through distributed digitalWhether input/output module 211 feeds back to the 3rd draining valve 208, thereby and control by waste water by controlling the 3rd draining valve 208Solution enters resin container 119 to carry out again except metal ion treatment. Single-chip microcomputer 212 is defeated through distributed digital by data processed resultEnter output module 211 and feed back to the 4th draining valve 209, thereby and whether that waste water is moltenly control by controlling the 4th draining valve 209Liquid flows into the 3rd cartridge filter 122 and carries out removal of impurities processing again. Until the waste water that water inlet adjustment monitoring device 200 monitors reachesTo the water inlet index of one-level electrically-driven ion film unit 123, single-chip microcomputer 212 is defeated through distributed digital input by data processed resultGo out module 211 and feed back to first row water valve 206, and control waste water solution inflow one-level electricity by control first row water valve 206 and driveMoving ionic membrane unit 123 carries out degree of depth concentration.
One-level electrically-driven ion film unit 123 utilizes electrically-driven ion film further concentrated to the reverse osmosis concentrated solution of high pressure,The Halite water that can be 50000mg/L by TDS is concentrated to 120000mg/L, and it produces water and enters second level reverse osmosis apparatus 128, and it is denseSolution enters the first strong brine case 124. One-level electric drive is produced water after two-pass reverse osmosis is processed, and two-pass reverse osmosis produces water and enters lightWater tank 129, two-pass reverse osmosis concentrated solution is delivered to the first intermediate pool 108 again. Dense saline solution warp in the first strong brine case 124The 3rd booster water pump 125 is sent into secondary electrically-driven ion film unit 126, utilizes electrically-driven ion film to the reverse osmosis concentrated solution of high pressureFurther concentrated, the Halite water that can be 120000mg/L by TDS is concentrated to 200000mg/L, and its secondary electrically-driven ion film producesWater is sent into middle setting-out pond 112 and is mixed with the reverse osmosis concentrated solution of middle pressure, and described secondary electrically-driven ion film unit residue concentrated solution is sentEnter the second strong brine case 127.
High slat-containing wastewater 101, after preliminary minimizing processing and degree of depth concentration, can reclaim 95% of waste water solutionTo fresh water water tank 129, realize waste water reuse above.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can be open in the present inventionUnder the inspiration of content, find out various solutions, and these solutions also all belong to open scope of the present invention and fall into thisWithin bright protection domain. It will be understood by those skilled in the art that description of the present invention and accompanying drawing thereof to be illustrative and be notForm limitations on claims. Protection scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. a minimizing processing method for high slat-containing wastewater, is characterized in that, described method is that high slat-containing wastewater (101) is enteredAfter row pretreatment, carry out preliminary minimizing processing and degree of depth concentration, the water inflow control system of described degree of depth concentration is againChlorine residue, heavy metal ion and colloid in the reverse osmosis concentrated solution of high pressure that preliminary process minimizing processing is generated are through active carbon mistakeAfter filter (118) and resin container (119) absorption, through the 3rd cartridge filter (122), small suspension and colloid are filtered out, andWaste water after filtering is delivered to into water and is adjusted monitoring device (200),
Based on one-level electrically-driven ion film unit (123) water inlet index in degree of depth concentration process and described water inlet adjustment monitoringWaste water information after the described filtration of device (200) monitoring, adjusts in water inlet under the control of monitoring device (200), uses water temperatureAt least one place in adjuster (205), active carbon filter (118), resin container (119) and the 3rd cartridge filter (122)Reason device carries out circular treatment at least one times to the waste water after filtering, and drives until the waste water after described filtration reaches described one-level electricityMoving ionic membrane unit (123) water inlet index.
2. the minimizing processing method of high slat-containing wastewater as claimed in claim 1, is characterized in that, described water inlet adjustment monitoringDevice (200) comprising: for monitor the hygrosensor (201) of wastewater temperature, for the chlorine of monitoring waste water chlorine ion concentration fromSub-detector (202), for monitoring the heavy metal ion detector (203) of concentration of heavy metal ion, for monitoring colloid and micro-The fine particle detector (204) of little suspension content;
For regulating the thermostat (205) of wastewater temperature, flowing into one-level electrically-driven ion film unit for controlling waste water(123) first row water valve (206), for control waste water flowing water active carbon filter (118) second row water valve (207), useEnter the 3rd draining valve (208) of resin container (119), flow into the 3rd cartridge filter for controlling waste water in controlling wastewater streams(122) the 4th draining valve (209);
For receive the distributed A/D acquisition module (210) of monitored data, for the single-chip microcomputer (212) of data processing, for controlMake the PC terminal (213) of described single-chip microcomputer (212) and the distributed digital input/output module (211) of feedback control information.
3. the minimizing processing method of high slat-containing wastewater as claimed in claim 2, is characterized in that, described water inlet adjustment monitoringDevice (200) passes through distributed A/D acquisition module (210) by described hygrosensor (201), chlorion detector (202), heavyThe communication that metal ion detector (203) and fine particle detector (204) detect is described single-chip microcomputer (212) extremely,The water inlet of the one-level electrically-driven ion film unit (123) by described single-chip microcomputer (212) based on PC terminal (213) input requires instituteState monitoring information and carry out data processing, and result is fed back to described water through distributed digital input/output module (211)Temperature regulator (205), first row water valve (206), second row water valve (207), the 3rd draining valve (208), the 4th draining valve(209)。
4. the minimizing processing method of high slat-containing wastewater as claimed in claim 3, is characterized in that, described one-level electric drive fromSub-film unit (123) water inlet index is: 5~40 DEG C of inflow temperatures; Contents of residual chlorine is not more than 0.05mg/L; Heavy metal ion contentBe not more than 0.1mg/L; Sewage quality index S DI is not more than 3.0.
5. the minimizing processing method of high slat-containing wastewater as claimed in claim 1, is characterized in that, described preliminary minimizing placeReason comprises the steps:
After filtering by the first cartridge filter (110) through pretreated waste water, send into described middle pressure reverse osmosis unit (111);
Waste water obtains middle pressure reverse osmosis produced water and the reverse osmosis concentrated solution of middle pressure after described middle pressure reverse osmosis unit (111) is processed,Wherein, described middle pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus (128), and the reverse osmosis concentrated solution of described middle pressure is through the second security personnelFilter (114) is delivered to described high pressure reverse osmosis unit (115) after filtering;
The reverse osmosis concentrated solution of described filtered middle pressure obtains high pressure counter-infiltration after described high pressure reverse osmosis unit (115) is processedProduce water and the reverse osmosis concentrated solution of high pressure, wherein, described high pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus (128), described heightPress reverse osmosis concentrated solution to carry out degree of depth concentration.
6. the minimizing processing method of high slat-containing wastewater as claimed in claim 5, is characterized in that, described degree of depth concentrationComprise the steps:
The reverse osmosis concentrated solution of described high pressure is delivered to one-level electrically-driven ion film unit (123) and is carried out after water inflow control system is processedDegree of depth concentration;
After described one-level electrically-driven ion film unit (123) is processed, obtaining the dense saline solution of one-level electric drive and one-level electric drive producesWater, wherein, described one-level electric drive is produced water and is entered second level reverse osmosis apparatus (128), and the dense saline solution of described one-level electric drive is through the 3rdBooster water pump (125) is sent into secondary electrically-driven ion film unit (126);
After described secondary electrically-driven ion film unit (126) is processed, obtaining the dense saline solution of secondary electric drive and secondary electric drive producesWater, described secondary electric drive is produced water and is sent into middle setting-out pond (112), and described secondary electric drive dense saline solution is sent into the second strong brine case(127)。
7. the minimizing processing method of the high slat-containing wastewater as described in claim 5 or 6, is characterized in that, sends into described secondaryThe product water of reverse osmosis unit (128) obtains after treatment two-pass reverse osmosis and produces water and the dense saline solution of two-pass reverse osmosis, wherein, and described twoLevel reverse osmosis produced water is sent into fresh water water tank (129), and the dense saline solution of described two-pass reverse osmosis is delivered to the first intermediate pool (108).
8. the minimizing processing method of high slat-containing wastewater as claimed in claim 5, is characterized in that, described middle pressure counter-infiltration dressPut (111) and adopt the middle press mold element that width of flow path is 1.524~1.778mm, described high pressure reverse osmosis unit (115) adopts streamRoad width is the high-pressure membrane element of 1.905~2.159mm.
9. the minimizing processing method of high slat-containing wastewater as claimed in claim 3, is characterized in that, described active carbon filter(118) chlorine of not removing for adsorbing preliminary minimizing process, adsorb simultaneously small organic molecule, colloid and heavy metal fromSon; Described resin container (119) has ion exchange resin, for absorption solution after described active carbon filter (118) is processedIn heavy metal ion; Described the 3rd cartridge filter (122) is for small suspension and the colloid of filtering solution.
10. the minimizing processing method of high slat-containing wastewater as claimed in claim 1, is characterized in that, described Wastewater Pretreatment,Preliminary minimizing processing and degree of depth concentration comprise the steps:
By high slat-containing wastewater (101) carry out homogeneous all measure add after processing lime or NaOH, sodium carbonate, aluminium polychloride andCoagulant and the softening agent of more than one in polyacrylamide precipitate, and to adjust waste water be alkaline environment, sediment rowEnter sludge-tank (133), waste water after precipitation is sent into tubular type microstrainer (106) and filter;
Sediment in described sludge-tank (133) after sludge dehydration device (134) carries out mud-water separation, obtain mud cake (135) andBrine waste, described mud cake (135) carries out dewatered sludge processing, and described brine waste is sent in regulating reservoir (102) and waste water stosteMix;
Supernatant after described tubular type microstrainer (106) filters is sent into candle filter (107), through described tubular type microstrainer(106) chemical precipitates after filtration enters highly dense pond (104);
Product water after described candle filter (107) filters is sent into the first intermediate pool (108) to carry out minimizing processing;
Outstanding by the first cartridge filter (110) filtering waste water through pretreated waste water in described the first intermediate pool (108)After floating thing and colloid, send into described middle pressure reverse osmosis unit (111);
Waste water obtains middle pressure reverse osmosis produced water and the reverse osmosis concentrated solution of middle pressure after described middle pressure reverse osmosis unit (111) is processed,Wherein, described middle pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus (128), and the reverse osmosis concentrated solution of described middle pressure is through the second security personnelFilter (114) is delivered to described high pressure reverse osmosis unit (115) after filtering;
The reverse osmosis concentrated solution of described filtered middle pressure obtains high pressure counter-infiltration after described high pressure reverse osmosis unit (115) is processedProduce water and the reverse osmosis concentrated solution of high pressure, wherein, described high pressure reverse osmosis produced water is sent into second level reverse osmosis apparatus (128), described heightPress reverse osmosis concentrated solution to deliver to the concentrated water inflow control system of the degree of depth;
The concentrated water inflow control system of the described degree of depth is to process in the reverse osmosis concentrated solution of high pressure generating through preliminary minimizingChlorine residue, heavy metal ion and colloid are after active carbon filter (118) and resin container (119) absorption, through the 3rd cartridge filter(122) small suspension and colloid are filtered out, and the waste water after filtering is delivered to into water and adjusted monitoring device (200);
Based on one-level electrically-driven ion film unit (123) water inlet index in degree of depth concentration process and described water inlet adjustment monitoringDevice (200) monitors the waste water information after described filtration, adjusts under the control of monitoring device (200) in water inlet, uses water temperatureAt least one place in adjuster (205), active carbon filter (118), resin container (119) and the 3rd cartridge filter (122)Reason device is realized and is processed at least one times described waste water after filtering, until the waste water after described filtration reaches described one-level electricityDrive ionic membrane unit (123) water inlet index;
The reverse osmosis concentrated solution of described high pressure is delivered to one-level electrically-driven ion film unit after the concentrated water inflow control system of the degree of depth is processed(123) carry out degree of depth concentration;
After described one-level electrically-driven ion film unit (123) is processed, obtaining the dense saline solution of one-level electric drive and one-level electric drive producesWater, wherein, described one-level electric drive is produced water and is entered second level reverse osmosis apparatus (128), and the dense saline solution of described one-level electric drive is through the 3rdBooster water pump (125) is sent into secondary electrically-driven ion film unit (126);
After described secondary electrically-driven ion film unit (126) is processed, obtaining the dense saline solution of secondary electric drive and secondary electric drive producesWater, described secondary electric drive is produced water and is sent into middle setting-out pond (112), and described secondary electric drive dense saline solution is sent into the second strong brine case(127);
The product water of sending into described second level reverse osmosis apparatus (128) obtains that two-pass reverse osmosis produces water and two-pass reverse osmosis is dense after treatmentSaline solution, wherein, described two-pass reverse osmosis produces water and sends into fresh water water tank (129), and the dense saline solution of described two-pass reverse osmosis is delivered in firstBetween pond (108);
Described high slat-containing wastewater (101) is after described pretreatment, preliminary minimizing processing and degree of depth concentration, described in reclaimingWaste water solution more than 95% to fresh water water tank (129), the product water that described fresh water water tank is collected is sent into reuse water tank (130) with realityExisting waste water reuse.
CN201510980936.XA 2015-12-23 2015-12-23 A kind of minimizing processing method of high slat-containing wastewater Active CN105600983B (en)

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