CN105585183A - Copper smelting reclaimed water treatment and recovery device and zero emission method - Google Patents

Copper smelting reclaimed water treatment and recovery device and zero emission method Download PDF

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Publication number
CN105585183A
CN105585183A CN201610126611.XA CN201610126611A CN105585183A CN 105585183 A CN105585183 A CN 105585183A CN 201610126611 A CN201610126611 A CN 201610126611A CN 105585183 A CN105585183 A CN 105585183A
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China
Prior art keywords
water
reverse osmosis
strong brine
pump
dense
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CN201610126611.XA
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Chinese (zh)
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CN105585183B (en
Inventor
张国平
姜新春
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Anhui Suno Membrane Technology Co.,Ltd.
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SHANDONG GUOXIN ENVIRONMENTAL SYSTEMS CO Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness
    • C02F5/06—Softening water by precipitation of the hardness using calcium compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Abstract

The invention provides a copper smelting reclaimed water treatment and recovery device and a zero emission method. The recovery device structurally comprises a pretreatment softening system (1), a primary desalination treatment system (2), a secondary desalination treatment system (3) and a strong brine zero emission treatment system (4). The zero emission method for copper smelting reclaimed water treatment and recovery includes the following steps of 1 pretreatment softening, 2 primary desalination treatment, 3 secondary desalination treatment and 4 strong brine zero emission treatment. The copper smelting reclaimed water treatment and recovery device and the zero emission method have the advantages that the water hardness is removed by using lime and calcined soda; primary desalination is performed by utilizing primary reverse osmosis, and effluent is supplemented to circulating water; further desalination is performed by utilizing secondary reverse osmosis and electrodeionization to meet the brine removal requirement; concentration, reduction and evaporation are performed by utilizing special reverse osmosis; (5) finally water resources are recycled, and the purposes of pollution and zero emission are eliminated.

Description

Water treatment retracting device and Zero emission method in copper smelting
Technical field
What the present invention relates to is water treatment retracting device and Zero emission method during copper is smelted, and belongs to the skill of Industrial Wastewater TreatmentArt field.
Background technology
Copper is smelted in production process can produce a large amount of middle water, and copper mine acid waste water treatment system also can contain by generating portion heightThe reverse osmosis concentrated water of salt, its water quality has higher calcium, magnesium, sodium, chlorine, nitrate anion, sulfate radical, heavy carbonic root plasma, higherTotal dissolved solid, a small amount of heavy metal ion and partial suspended thing and organic pollution, its water utilizes traditional clean at presentChange concentration technology, although water in can recovery section, can the dense water of discharging again can be to environment. Need new copper to smeltMiddle water handling reclamation and zero-discharge technology reach should eliminate water pollution, preserves the ecological environment, and makes again water in copper smelting obtainTo the object of recycling.
Summary of the invention
What the present invention proposed is a kind of water handling reclamation and Zero emission device and method thereof during copper is smelted, and its object is intended to profitIn copper being smelted with pretreatment melded system, primary demineralixation system, secondary desalting system, strong brine zero-discharge treatment system, water entersRow is processed reuse. Before processing, in copper smelting, the main water quality of water is: pH:6.5～9.5, TDS(total dissolved solid): 1000～6000mg/L，Ca2+(calcium ion): 100～1000mg/L, Mg2+(magnesium ion): 40～500mg/L, Na+(sodium ion): 40～500mg/L，Cl-(chlorion): 40～500mg/L, SO4 2-(sulfate radical): 200～2500mg/L, HCO3 -(bicarbonate radical): 200～3000mg/L，NO3 2-(nitrate anion): 30～300mg/L. Water water handling reclamation and zero-emission dress in copper is smelted in copper smeltingPut after processing, secondary desalting system product water reaches the requirement of desalted water completely, and Desalting Water System is produced water water quality and is: electrical conductivity≤0.2μs/cm(25℃)、SiO2Content≤20 μ g/L; And the water outlet of one-level DW system demineralized water system can be used as circulating cooling make-up water, its waterMatter index is better than " Code for design of industrial recirculating cooling water treatment ", and (GB50050-2007) 6.1.3 Standard of reclaimed water is (whereinpH：7.0～8.5、Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L), during copper is smelted, water is processed reuse completely, reaches and eliminates water dirtDye, again the object of water saving.
Technical solution of the present invention: water treatment retracting device in copper smelting, its structure comprises pretreatment melded system(1), one-level desalination treatment system (2), secondary desalination treatment system (3), strong brine zero-discharge treatment system (4); Wherein copper smeltingIn refining, water pipe A receives the water inlet of pretreatment melded system (1), and the water outlet G of pretreatment melded system (1) receives one-level desalination placeThe water inlet of reason system (2), the mud mouth of pretreatment melded system (1) is discharged the softening mud B(decontaminated water treating stations of pretreatment),The water inlet that the one-level demineralized water H of one-level desalination treatment system (2) receives secondary desalination treatment system (3) is sent one-level simultaneously and is removedSaltwater replenishment recirculated water E1, the dense water J of one-level desalination treatment system (2) receives the water inlet of strong brine zero-discharge treatment system (4)Mouthful, the concentrate recirculation I of secondary desalination treatment system (3) receives the backflow water inlet of pretreatment melded system (1), secondary desalination placeThe delivery port of reason system (3) is sent demineralized water D, and the delivery port of strong brine zero-discharge treatment system (4) is sent replenishment cycles water E2，The salt outlet of strong brine zero-discharge treatment system (4) is sent abraum salt F, and the mud mouth of strong brine zero-discharge treatment system (4) is sentStrong brine zero-discharge treatment system mud C(decontaminated water treating stations).
In copper smelting, Zero emission method is reclaimed in water treatment, comprises the steps:
(1) pretreatment is softening;
(2) one-level desalination processing;
(3) secondary desalination processing;
(4) strong brine zero discharge treatment.
The present invention utilizes pretreatment melded system, one-level desalination treatment system, secondary desalination treatment system, strong brine zero-emissionPut treatment system process copper smelt in water, remove pollutant and salt, by one-level desalination effluent reuse to recirculated water, secondary desalinationWater outlet meets the requirement of demineralized water.
Advantage of the present invention:
1. utilize hardness of water in lime, soda ash removal;
2. utilize just one-step desalting of first-stage reverse osmosis, recirculated water is mended in water outlet;
3. utilize the further desalination of two-pass reverse osmosis and electrodeionization, reach the requirement of demineralized water;
4. utilize special reverse osmosis concentrated reduction evaporation;
5. finally reach recycle-water resource, the object of pollution abatement and zero-emission.
Brief description of the drawings
Accompanying drawing 1 is the general structure schematic diagram of water handling reclamation Zero emission device during copper is smelted.
Accompanying drawing 2 is pretreatment melded system structural representations of water handling reclamation Zero emission device during copper is smelted.
Accompanying drawing 3 is primary demineralixation system and secondary desalting system knots of water handling reclamation Zero emission device during copper is smelted
Structure schematic diagram.
Accompanying drawing 4 is strong brine zero-discharge treatment system structural representations of water handling reclamation Zero emission device during copper is smelted.
Accompanying drawing 5 is the process flow diagrams of water handling reclamation Zero emission device embodiment during copper is smelted.
SPT in accompanying drawing represents pretreatment melded system (1), DS1Represent one-level desalination treatment system (2), DS2Represent twoLevel desalination treatment system (3), CWZLD represent strong brine zero-discharge treatment system (4); A represents that in copper smelting, water, B represent pre-placeThe softening mud (decontaminated water treating stations) of reason, C represent that strong brine zero-discharge treatment system mud (decontaminated water treating stations), D represent to removeSalt solution, E1Represent one-level demineralized water replenishment cycles water, E2Represent product water replenishment cycles water, the F table of strong brine zero-discharge treatment systemShow that abraum salt, G represent that the water outlet of pretreatment melded system, one-level demineralized water, the I that H represents primary demineralixation system represent secondary desalinationThe concentrate recirculation of system, J represent the dense water of primary demineralixation system; T1Represent raw water box (1-1), T2Represent filtered water tank (1-3), T3Represent ultrafiltration product water tank (1-7), T4Represent the dense water tank of first-stage reverse osmosis (2-3), T5Represent one-level sweet-water tank (2-6), T6RepresentTwo-pass reverse osmosis produces water tank (3-3), T7Represent sweet-water tank (3-6), T8Represent the reverse osmosis concentrated water tank of strong brine (4-5), T9RepresentStrong brine zero-discharge treatment system produces water tank (4-4); D1Represent Ca (OH)2/Na2CO3/ PAC/PAM/ bactericide throwing device (1-8）、D2Represent HCl throwing device (1-9), D3Represent ultrafiltration on-line cleaning chemicals dosing plant (1-10), D4Represent reducing agent/scale inhibitionAgent/non-oxide bactericide throwing device (2-7), D5Represent scale inhibitor feeding device (2-8), D6Represent NaOH throwing device (3-7）、D7Represent Ca (OH)2/Na2CO3/ Polyferric Sulfate/bactericide throwing device (4-9), D8Represent HCl/ antisludging agent/non-oxide bactericideThrowing device (4-10), D9Represent antisludging agent/non-oxide bactericide throwing device (4-11); P1Represent raw water pump (1-11), P2TableShow high efficiency particulate air filter feed pump (1-12), P3Represent high efficiency particulate air filter backwash water pump (1-13), P4Represent first-stage reverse osmosis feed pump（1-16）、P5Represent hyperfiltration reverse-rinsing water pump (1-17), P6Represent first-stage reverse osmosis high-pressure pump (2-9), P7Represent dense water counter-infiltration toWater pump (2-10), P8Represent dense water reverse osmosis high-pressure pump (2-11), P9Represent two-pass reverse osmosis feed pump (2-12), P10Represent oneLevel demineralized water circulating cooling make-up water pump (2-13), P11Represent two-pass reverse osmosis high-pressure pump (3-8), P12Expression EDI feed pump (3-9),P13Represent desalination water pump (3-10), P14Represent strong brine reverse osmosis feedwater pump (4-12), P15Represent strong brine reverse osmosis high-pressure pump（4-13）、P16Represent STRO feed pump (4-15), P17Represent STRO high-pressure pump (4-16), P18Represent strong brine zero discharge treatmentProduce water circulation water small pump (4-14); B1Represent high efficiency particulate air filter backwash blower fan (1-14), B2Represent hyperfiltration reverse-rinsing blower fan (1-15）；SAF1Represent first-stage reverse osmosis cartridge filter (2-1), SAF2Represent dense water reverse osmosis cartridge filter (2-4), SAF3TableShow two-pass reverse osmosis cartridge filter (3-1), SAF4Represent EDI cartridge filter (3-4), SAF5Represent strong brine counter-infiltration guarantorPeace filter (4-2), SAF6Represent STRO cartridge filter (4-6); MCT represents that accelerator (1-2), HEF representHigh efficiency particulate air filter (1-4), DCF represent that 100 microns of disc-type filters (1-5), UF represent ultrafiltration apparatus (1-6), RO1Represent oneLevel reverse osmosis unit (2-2), ROCRepresent dense water reverse osmosis unit (2-5), RO2Represent second level reverse osmosis apparatus (3-2), EDI tableShow electric deionizer (3-5), DFS represent DF film softening plant (4-1), CWRO represent strong brine reverse osmosis unit (4-3),STRO represents that ductwork type reverse osmosis unit (4-7), ZF represent vaporising device (4-8).
Detailed description of the invention
Contrast accompanying drawing 1, water treatment retracting device in copper smelting, its structure comprises pretreatment melded system (1), one-level desalinationTreatment system (2), secondary desalination treatment system (3), strong brine zero-discharge treatment system (4); Wherein in copper smelting, water pipe A receivesThe water inlet of pretreatment melded system (1), the water outlet G of pretreatment melded system (1) receives entering of one-level desalination treatment system (2)The mouth of a river, the mud mouth of pretreatment melded system (1) is discharged the softening mud B(decontaminated water treating stations of pretreatment), the processing of one-level desalinationThe one-level demineralized water H of system (2) receives the water inlet of secondary desalination treatment system (3) and receives one-level demineralized water replenishment cycles simultaneouslyWater E1, the dense water J of one-level desalination treatment system (2) receives the water inlet of strong brine zero-discharge treatment system (4), secondary desalination placeThe concentrate recirculation I of reason system (3) receives the backflow water inlet of pretreatment melded system (1), the going out of secondary desalination treatment system (3)Demineralized water D is sent at the mouth of a river, and the delivery port of strong brine zero-discharge treatment system (4) is sent replenishment cycles water E2, strong brine zero-emissionThe salt outlet for the treatment of system (4) is sent abraum salt F, and the mud mouth of strong brine zero-discharge treatment system (4) is sent strong brine zero-emissionTreatment system mud C(decontaminated water treating stations).
Contrast accompanying drawing 2, pretreatment melded system (1), its structure comprises raw water box (1-1), accelerator (1-2), filtered water tank (1-3), high efficiency particulate air filter (1-4), 100 microns of disc-type filters (1-5), ultrafiltration apparatus (1-6), ultrafiltration are producedWater tank (1-7), Ca (OH)2/Na2CO3/ PAC/PAM/ bactericide throwing device (1-8), HCl throwing device (1-9), ultrafiltration are onlineClean chemicals dosing plant (1-10), raw water pump (1-11), high efficiency particulate air filter feed pump (1-12), high efficiency particulate air filter backwash water pump (1-13), high efficiency particulate air filter backwash blower fan (1-14), hyperfiltration reverse-rinsing blower fan (1-15), first-stage reverse osmosis feed pump (1-16), ultrafiltration are anti-Wash water pump (1-17); Wherein copper smelt in water pipe A receive the water inlet of raw water box (1-1), the delivery port of raw water box (1-1) passes throughRaw water pump (1-11) is received the water inlet of accelerator (1-2), Ca (OH)2/Na2CO3/ PAC/PAM/ bactericide addsThe water inlet of accelerator (1-2), the row of accelerator (1-2) are also received in the dosing outlet of device (1-8)Mud mouth is discharged the softening mud B(decontaminated water treating stations of pretreatment), the delivery port of accelerator (1-2) is received filtered water tank(1-3) water inlet, the delivery port of filtered water tank (1-3) is received high efficiency particulate air filter (1-by high efficiency particulate air filter feed pump (1-12)4) water inlet, the delivery port of filtered water tank (1-3) is also received high efficiency particulate air filter (1-by high efficiency particulate air filter backwash water pump (1-13)4) backwash water inlet, the medicine outlet of HCl throwing device (1-9) is also received the water inlet of high efficiency particulate air filter (1-4), high efficiency filterThe air outlet of device backwash blower fan (1-14) is received the backwash air inlet of high efficiency particulate air filter (1-4), the water outlet of high efficiency particulate air filter (1-4)Mouth is received the water inlet of 100 microns of disc-type filters (1-5), and the delivery port of 100 microns of disc-type filters (1-5) is received superThe water inlet of filter device (1-6), the delivery port of ultrafiltration apparatus (1-6) is received the water inlet of ultrafiltration product water tank (1-7), secondary desalinationThe concentrate recirculation I of system receives the recirculation water water inlet of ultrafiltration product water tank (1-7), and the delivery port that water tank (1-7) is produced in ultrafiltration passes throughFirst-stage reverse osmosis feed pump (1-16) is sent the water outlet G of pretreatment melded system, and the delivery port that water tank (1-7) is produced in ultrafiltration also passes throughHyperfiltration reverse-rinsing water pump (1-17) is received the backwash water inlet of ultrafiltration apparatus (1-6), ultrafiltration on-line cleaning chemicals dosing plant (1-10)Medicine outlet is also received the backwash water inlet of ultrafiltration apparatus (1-6), and the air outlet of hyperfiltration reverse-rinsing blower fan (1-15) is received ultrafiltration apparatus(1-6) backwash air inlet, the backwash discharge outlet of high efficiency particulate air filter (1-4), the backwash of 100 microns of disc-type filters (1-5)The backwash discharge outlet of discharge outlet and ultrafiltration apparatus (1-6) is all received the backflow water inlet of raw water box (1-1).
Contrast accompanying drawing 3, one-level desalination treatment system (2), its structure comprises first-stage reverse osmosis cartridge filter (2-1),Level reverse osmosis unit (2-2), the dense water tank of first-stage reverse osmosis (2-3), dense water reverse osmosis cartridge filter (2-4), dense water counter-infiltrationDevice (2-5), one-level sweet-water tank (2-6), reducing agent/antisludging agent/non-oxide bactericide throwing device (2-7), antisludging agent are thrownFeeder apparatus (2-8), first-stage reverse osmosis high-pressure pump (2-9), dense water reverse osmosis feedwater pump (2-10), dense water reverse osmosis high-pressure pump (2-11), two-pass reverse osmosis feed pump (2-12), one-level demineralized water circulating cooling make-up water pump (2-13);
Secondary desalination treatment system (3), its structure comprises two-pass reverse osmosis cartridge filter (3-1), second level reverse osmosis apparatus (3-2), two-pass reverse osmosis produce water tank (3-3), EDI cartridge filter (3-4), electric deionizer (3-5), sweet-water tank (3-6),NaOH throwing device (3-7), two-pass reverse osmosis high-pressure pump (3-8), EDI feed pump (3-9), desalination water pump (3-10); Wherein pre-The outlet pipe G for the treatment of system receives the water inlet of first-stage reverse osmosis cartridge filter (2-1), reducing agent/antisludging agent/non-oxide killingThe medicine outlet of microbial inoculum throwing device (2-7) is also received the water inlet of first-stage reverse osmosis cartridge filter (2-1), and first-stage reverse osmosis is protectedThe water inlet that the delivery port of peace filter (2-1) is received first-stage reverse osmosis device (2-2) by first-stage reverse osmosis high-pressure pump (2-9)Mouthful, the product water out of first-stage reverse osmosis device (2-2) is received the 2# water inlet of one-level sweet-water tank (2-6), first-stage reverse osmosis dressThe dense water out of putting (2-2) is received the water inlet of the dense water tank of first-stage reverse osmosis (2-3), and first-stage reverse osmosis dense water tank (2-3) goes outThe water inlet of dense water reverse osmosis cartridge filter (2-4) is received at the mouth of a river by dense water reverse osmosis feedwater pump (2-10), antisludging agent is thrownThe medicine outlet of feeder apparatus (2-8) is also received the water inlet of dense water reverse osmosis cartridge filter (2-4), and dense water reverse osmosis cartridge filtersThe delivery port of device (2-4) is received the water inlet of dense water reverse osmosis unit (2-5), dense water by dense water reverse osmosis high-pressure pump (2-11)The product water out of reverse osmosis unit (2-5) is received the 1# water inlet of one-level sweet-water tank (2-6), dense water reverse osmosis unit (2-5)Dense water out send the dense water J of primary demineralixation system, the delivery port of one-level sweet-water tank (2-6) circulates by one-level demineralized waterWater small pump (2-13) is sent one-level demineralized water replenishment cycles water E1; The delivery port of one-level sweet-water tank (2-6) also passes through secondaryReverse osmosis feedwater pump (2-12) is received the water inlet of two-pass reverse osmosis cartridge filter (3-1), and NaOH throwing device (3-7) goes outMedicine mouth is also received the water inlet of two-pass reverse osmosis cartridge filter (3-1), the delivery port of two-pass reverse osmosis cartridge filter (3-1)Receive the water inlet of second level reverse osmosis apparatus (3-2) by two-pass reverse osmosis high-pressure pump (3-8), second level reverse osmosis apparatus (3-2)Product water out receive two-pass reverse osmosis produce water tank (3-3) water inlet, two-pass reverse osmosis produce water tank (3-3) delivery port pass throughEDI feed pump (3-9) is received the water inlet of EDI cartridge filter (3-4), and the delivery port of EDI cartridge filter (3-4) is received electricityThe water inlet of deionizer (3-5), the dense water out of second level reverse osmosis apparatus (3-2) and electric deionizer (3-5) denseWater out is sent the concentrate recirculation I of secondary desalting system, and the product water out of electric deionizer (3-5) is received sweet-water tank (3-6) water inlet, the delivery port of sweet-water tank (3-6) is sent demineralized water D by desalination water pump (3-10).
Contrast accompanying drawing 4, strong brine zero-discharge treatment system (4), its structure comprises DF film softening plant (4-1), strong brineReverse osmosis cartridge filter (4-2), strong brine reverse osmosis unit (4-3), strong brine zero-discharge treatment system produce water tank (4-4),The reverse osmosis concentrated water tank of strong brine (4-5), STRO cartridge filter (4-6), ductwork type reverse osmosis unit (4-7), vaporising device (4-8）、Ca(OH)2/Na2CO3/ Polyferric Sulfate/bactericide throwing device (4-9), HCl/ antisludging agent/non-oxide bactericide throwing device (4-10), antisludging agent/non-oxide bactericide throwing device (4-11), strong brine reverse osmosis feedwater pump (4-12), strong brine counter-infiltration are highPress pump (4-13), strong brine zero discharge treatment are produced water circulation water small pump (4-14), STRO feed pump (4-15), STRO high-pressure pump(4-16); Wherein the dense water pipe J of primary demineralixation system receives the water inlet of DF film softening plant (4-1), Ca (OH)2/Na2CO3/The medicine outlet of Polyferric Sulfate/bactericide throwing device (4-9) is also received the water inlet of DF film softening plant (4-1), DF film softening plant(4-1) mud discharging mouth is sent strong brine zero-discharge treatment system mud C(decontaminated water treating stations), DF film softening plant (4-1)Delivery port is received the water inlet of strong brine reverse osmosis cartridge filter (4-2) by strong brine reverse osmosis feedwater pump (4-12),The medicine outlet of HCl/ antisludging agent/non-oxide bactericide throwing device (4-10) is also received strong brine reverse osmosis cartridge filter (4-2) water inlet, the delivery port of strong brine reverse osmosis cartridge filter (4-2) connects by strong brine reverse osmosis high-pressure pump (4-13)To the water inlet of strong brine reverse osmosis unit (4-3), the product water out of strong brine reverse osmosis unit (4-3) is received strong brine zero-emissionPut the water inlet that treatment system is produced water tank (4-4), strong brine zero-discharge treatment system produces the delivery port of water tank (4-4) by dense saltWater zero discharge processing product water circulation water small pump (4-14) is sent the product water replenishment cycles water E of strong brine zero-discharge treatment system2，The dense water out of strong brine reverse osmosis unit (4-3) is received the water inlet of the reverse osmosis concentrated water tank of strong brine (4-5), strong brine reverse osmosisThe delivery port of saturating dense water tank (4-5) is received the water inlet of STRO cartridge filter (4-6), scale inhibition by STRO feed pump (4-15)The medicine outlet of agent/non-oxide bactericide throwing device (4-11) is also received the water inlet of STRO cartridge filter (4-6), and STRO protectsThe delivery port of peace filter (4-6) is received the water inlet of ductwork type reverse osmosis unit (4-7) by STRO high-pressure pump (4-16), pipeThe dense water out of net formula reverse osmosis unit (4-7) is received the water inlet of vaporising device (4-8), ductwork type reverse osmosis unit (4-7)Product water out and the condensate outlet of vaporising device (4-8) also receive strong brine zero-discharge treatment system and produce water tank (4-4)Water inlet, the salt outlet of vaporising device (4-8) is sent abraum salt F.
In copper smelting, Zero emission method is reclaimed in water treatment, comprises the steps:
(1) pretreatment is softening: the milk of lime (200～1000mg/L), the matter that in copper is smelted, in water, add mass concentration 5～10%Soda ash (200～800mg/L), flocculant (20～80mg/L) and the bactericide (20～70mg/L) of amount concentration 5～10% carry out softChange and process, discharge the softening mud of pretreatment by precipitation, multistage filtering, soften and residual hardness of water≤1.0mmol/L, in order toIn follow-up desalination, concentrated, evaporation process;
(2) one-level desalination processing: the water outlet of pretreatment melded system is by first-stage reverse osmosis device, the rate of recovery: 60～75% carry outPreliminary desalination, and utilize dense water reverse osmosis unit, the rate of recovery: 55～70%, the dense water of first-stage reverse osmosis device is tentatively taken offSalt, to improve the rate of recovery 82～92.5% of whole single stage desalting water, one-level salt water quality is better than " industrial circulating cooling water placeReason design specification ", GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0～8.5, Cl-﹤250mg/L、TDS﹤1000mg/L), as the former water of circulating cooling make-up water and secondary desalination treatment system, the dense water of primary demineralixation system is delivered to strong brineZero-discharge treatment system is processed;
(3) secondary desalination processing: one-level demineralized water passes through the second level reverse osmosis apparatus rate of recovery: 85～95%, further desalination, soAfter carry out advanced desalination by electric deionizer again, the dense water of second level reverse osmosis apparatus and electric deionizer returns to pretreatmentMelded system is processed again; The product water of electric deionizer has reached the requirement of desalted water completely, and Desalting Water System is produced water water qualityFor: electrical conductivity≤0.2 μ s/cm (25 DEG C), SiO2Content≤20 μ g/L;
(4) strong brine zero discharge treatment: the dense water of primary demineralixation system enters DF film softening plant, by adding mass concentration 5～10% milk of lime (400～1200mg/L), the soda ash (100～500mg/L) of mass concentration 5～10%, flocculant (20～80mg/L), bactericide (20～70mg/L), soften processing, its thickened sludge is sent to Sewage Disposal processing, it softensWater is through strong brine reverse osmosis unit, the rate of recovery: 50～70% concentrated, then be 50～70kg/cm through excess pressure2Ductwork typeReverse osmosis unit, the rate of recovery: 60～80%, further the degree of depth is concentrated, and the dope of ductwork type reverse osmosis unit enters through vaporising device ZFRow evaporation, output abraum salt F; The product water of strong brine reverse osmosis unit, the product water of ductwork type reverse osmosis unit and vaporising device ZF'sThe water quality of condensed water is better than " Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 recycled water water quality markAccurate (wherein pH:7.0～8.5, Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L), be back to recirculated water.
In described step (1) copper smelting, water is by pretreatment melded system SPT, and specifically in copper smelting, water A is logical successivelyCross raw water box T1, raw water pump P1, accelerator MCT, filtered water tank T2, high efficiency particulate air filter feed pump P2, high efficiency particulate air filterWater tank T is produced in HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UF, ultrafiltration3, first-stage reverse osmosis feed pump P4Until sendThe water outlet G of pretreatment melded system; Wherein copper smelt in water A and high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF,The backwash water of ultrafiltration apparatus UF is at raw water box T1The adjusting of water quality and quantity is carried out in middle mixing, and by raw water pump P1Send into mechanical agitationDepositing reservoir MCT softens processing; Utilize Ca (OH) at accelerator MCT2/Na2CO3/ PAC/PAM/ bactericide is thrownFeeder apparatus D1Feeding lime breast (concentration 5～10%), soda ash (concentration 5～10%), PAC, PAM and bactericide, utilize lime, soda ashAfter softening precipitation process, water outlet hardness leakage≤1.0mmol/L of accelerator MCT, and discharge the softening dirt of pretreatmentMud B(decontaminated water treating stations); The water outlet of accelerator MCT enters filtered water tank T2, through high efficiency particulate air filter feed pump P2PressurizationSuccessively carry out multipole filtration, filtering machinery through high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UFStir the laggard ultrafiltration product water tank T of entering of particle in depositing reservoir MCT water outlet3, the concentrate recirculation I of secondary desalting system also enters superWater tank T is produced in filter3, and through first-stage reverse osmosis feed pump P4Send the water outlet G of pretreatment melded system; Due to acceleratorThe pH of MCT water outlet is 10～11, before high efficiency particulate air filter HEF, utilize HCl throwing device D2Add hydrochloric acid pH is adjusted back to 7.5～8.5, high efficiency particulate air filter HEF utilizes high efficiency particulate air filter backwash water pump P3With high efficiency particulate air filter backwash blower fan B1Regularly carry out air waterBackwash; Ultrafiltration apparatus UF utilizes hyperfiltration reverse-rinsing blower fan B2, hyperfiltration reverse-rinsing water pump P5With ultrafiltration on-line cleaning chemicals dosing plant D3Regularly enterThe backwash of the online dosing chemistry of row air water; The backwash of high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UFRaw water box T is returned in draining1Again process.
The water outlet of described step (2) pretreatment melded system is by one-level desalination treatment system DS1, specifically pretreatmentThe water outlet G of melded system is successively by first-stage reverse osmosis cartridge filter SAF1, first-stage reverse osmosis high-pressure pump P6, first-stage reverse osmosisDevice RO1, the dense water tank T of first-stage reverse osmosis4, dense water reverse osmosis feedwater pump P7, dense water reverse osmosis cartridge filter SAF2, dense water is anti-Infiltration high-pressure pump P8, dense water reverse osmosis unit ROC, one-level sweet-water tank T5, until one-level demineralized water circulating cooling make-up water pump P10SendOne-level demineralized water replenishment cycles water E1; The water outlet G of wherein pretreatment melded system is through first-stage reverse osmosis cartridge filter SAF1CrossFilter is to first-stage reverse osmosis device RO1Protected, simultaneously by reducing agent/antisludging agent/non-oxide bactericide throwing device D4AddReducing agent, antisludging agent, non-oxide bactericide are further protected first-stage reverse osmosis device RO1, then through first-stage reverse osmosis high-pressure pump P6AddHigh pressure (pressure: 10～15kg/cm2), utilize first-stage reverse osmosis device RO1(the rate of recovery: 60～75%) carry out preliminary desalination placeReason, first-stage reverse osmosis device RO1Product water enter one-level sweet-water tank T5; First-stage reverse osmosis device RO1Dense water to enter one-level anti-Permeate dense water tank T4, and by dense water reverse osmosis feedwater pump P7Pressurization, through overrich water reverse osmosis cartridge filter SAF2Filter dense waterReverse osmosis unit ROCProtected, simultaneously by scale inhibitor feeding device D5Add antisludging agent to dense water reverse osmosis unit ROCAddWith protection, then through overrich water reverse osmosis high-pressure pump P8(pressure: 11～20kg/cm adds high pressure2), utilize dense water reverse osmosis unitROC(rate of recovery: 55～70%) carry out preliminary desalting processing, with improve whole single stage desalting water the rate of recovery (can reach 82～92.5%), dense water reverse osmosis unit ROCDense water be the dense water J of primary demineralixation system, deliver to strong brine zero discharge treatment systemSystem CWZLD processes; Dense water reverse osmosis unit ROCProduct water also enter one-level sweet-water tank T5, be one-level demineralized water, itsWater quality be better than " Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0～8.5、Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L), part one-level demineralized water utilizes two-pass reverse osmosis feed pump P9Deliver to twoLevel desalination treatment system DS2Produce demineralized water; Remainder one-level demineralized water utilizes one-level demineralized water circulating cooling make-up water pump P10SendGo out one-level demineralized water replenishment cycles water E1。
Described step (3) one-level demineralized water is by secondary desalination treatment system DS2, specifically one-level demineralized water is logical successivelyCross two-pass reverse osmosis cartridge filter SAF3, two-pass reverse osmosis high-pressure pump P11, second level reverse osmosis apparatus RO2, two-pass reverse osmosis produceWater tank T6, EDI feed pump P12, EDI cartridge filter SAF4, electric deionizer EDI, sweet-water tank T7, until desalination water pumpP13Send demineralized water D; Wherein one-level demineralized water is by two-pass reverse osmosis cartridge filter SAF3Filter with protection two-pass reverse osmosisDevice RO2, utilize NaOH throwing device D simultaneously6Add NaOH and improve pH, by two-pass reverse osmosis high-pressure pump P11Add high pressure and (pressPower: 10～15kg/cm2), utilize second level reverse osmosis apparatus RO2(the rate of recovery: 85～95%) further desalination, two-pass reverse osmosis dressPut RO2Product water enter two-pass reverse osmosis and produce water tank T6, through EDI feed pump P12Pressurization, by EDI cartridge filter SAF4CrossFilter, with protection electric deionizer EDI, is carried out advanced desalination by electric deionizer EDI; Second level reverse osmosis apparatus RO2DenseThe concentrate recirculation I that the dense water of water and electric deionizer EDI is secondary desalting system returns to pretreatment melded system SPT againProcess; The product water of electric deionizer EDI has reached the requirement of desalted water completely, and Desalting Water System is produced water water quality and is: electrical conductivity≤0.2μs/cm(25℃)、SiO2Content≤20 μ g/L, the product water of electric deionizer EDI enters sweet-water tank T7, utilize desalinationWater pump P13Send demineralized water D.
The dense water J of described step (4) primary demineralixation system is by strong brine zero-discharge treatment system CWZLD, specificallyThe dense water J of primary demineralixation system is successively by DF film softening plant DFS, strong brine reverse osmosis feedwater pump P14, strong brine counter-infiltrationCartridge filter SAF5, strong brine reverse osmosis high-pressure pump P15, strong brine reverse osmosis unit CWRO, the reverse osmosis concentrated water tank of strong brineT8, STRO feed pump P16, STRO cartridge filter SAF6, STRO high-pressure pump P17, ductwork type reverse osmosis unit STRO, vaporising deviceZF is until send abraum salt F; Wherein the dense water J of primary demineralixation system enters DF film softening plant DFS, by Ca (OH)2/Na2CO3/ Polyferric Sulfate/bactericide throwing device D7Feeding lime breast (concentration 5～10%), soda ash (concentration 5～10%), flocculant, killMicrobial inoculum, softens processing, sends strong brine zero-discharge treatment system mud C(decontaminated water treating stations), softening water outlet is through overrichSalt solution reverse osmosis feedwater pump P14Pressurization, through strong brine reverse osmosis cartridge filter SAF5Filter with protection strong brine reverse osmosis unitCWRO, then by strong brine reverse osmosis high-pressure pump P15(pressure: 15～25kg/cm adds high pressure2), utilize strong brine counter-infiltration dressPut the CWRO(rate of recovery: 50～70%) concentrate, the product water of strong brine reverse osmosis unit CWRO enters strong brine zero discharge treatmentSystem is produced water tank T9, the dense water of strong brine reverse osmosis unit CWRO enters the reverse osmosis concentrated water tank T of strong brine8, then give through STROWater pump P16Pressurization, through STRO cartridge filter SAF6Filter with protection ductwork type reverse osmosis unit STRO, simultaneously by antisludging agent/Non-oxide bactericide throwing device D9Add antisludging agent and non-oxide bactericide with protection ductwork type reverse osmosis unit STRO, more logicalCross STRO high-pressure pump P17(pressure: 50～70kg/cm adds high pressure2), utilize the ductwork type reverse osmosis unit STRO(rate of recovery: 60～80%) further the degree of depth is concentrated, and the dope of ductwork type reverse osmosis unit STRO evaporates through vaporising device ZF, output abraum salt F;The product water of ductwork type reverse osmosis unit STRO and the condensed water of vaporising device ZF enter strong brine zero-discharge treatment system and produce water tankT9, strong brine zero-discharge treatment system produces water tank T9In three part mixing waters (product water, the pipe of strong brine reverse osmosis unit CWROThe product water of net formula reverse osmosis unit STRO and the condensed water of vaporising device ZF) water quality be better than that " industrial circulating cooling water processing is establishedMeter specification " (GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0～8.5, Cl-﹤250mg/L、TDS﹤1000mg/L), produce water circulation water small pump P by strong brine zero discharge treatment18Send the product water of strong brine zero-discharge treatment systemReplenishment cycles water E2. Thereby reach the object of recycle-water and zero-emission.
Embodiment
Mou Tong industry Co., Ltd industrial upgrading is transformed supporting water treatment system.
1. SYSTEM SUMMARY
This supporting water treatment system comprises recycle-water system, Desalting Water System and strong brine Zero discharging system.
The water inlet of recycle-water system is circulation draining, inflow 4416m3/ d, i.e. 184m3/ h. Employing machinery stirsMix depositing reservoir (limy, soda ash soften)+more medium filter+self-cleaning filter+ultrafiltration+first-stage reverse osmosis+dense water reverse osmosisSaturating technique, the dense water of dense water reverse osmosis unit enters the processing of strong brine Zero discharging system after collecting.
Desalting Water System is produced water as water source taking recycle-water system, makes for owner's boiler of power generation by waste heat (steam pressure 5.6MPa)With, design aquifer yield 100m3/ h, system can be used in 50%～100% elastic range; This system adopts locating of counter-infiltration+EDIScience and engineering skill, effluent quality meets boiler of power generation by waste heat water supply standard.
Strong brine zero-emission design water yield 39.4m3/ h(is containing the dense water 11m of acid waste water membrane treatment appts3/ h), adopt DF filmSoftening plant (limy, soda ash soften)+strong brine counter-infiltration+STRO counter-infiltration+evaporated crystallization device. System is produced after water collectionAs circulation make-up water.
2. the design system water yield
(1) recycle-water system: 184m3/h；
(2) Desalting Water System: 100m3/h；
(3) strong brine Zero discharging system: 39.4m3/h。
3. design influent quality
Sequence number Project Unit Numerical value
1 pH 6.8～9.5
2 Total dissolved solid mg/L 1584
3 Calcium ion mg/L 240
4 Magnesium ion mg/L 86.4
5 Sodium ion mg/L 80
6 Chlorion mg/L 53
7 Sulfate ion mg/L 492
8 Bicarbonate ion mg/L 560
9 Nitrate anion mg/L 72
4. design effluent quality
(1) water outlet of recycle-water system is as circulating cooling make-up water, and its water quality index meets " industrial circulating cooling water Treatment Design ruleModel " (GB50050-2007) 6.1.3 recycled water water quality requirement:
Recycled water water quality index:
Sequence number Project Unit Water Quality Control Indexes
1 pH(25℃) 7.0～8.5
2 Suspension mg/L ≤10
3 Turbidity mg/L ≤5
4 BOD5 mg/L ≤5
5 COD mg/L ≤30
6 Iron mg/L ≤0.5
7 Manganese mg/L ≤0.2
8 Cl- mg/L ≤250
9 Calcium hardness is (with CaCO3Meter) mg/L ≤250
10 Methyl orange alkalinity is (with CaCO3Meter) mg/L ≤200
11 NH3-N mg/L ≤5
12 Total phosphorus mg/L ≤1
13 Soluble solid mg/L ≤1000
14 Free chlorine mg/L End 0.1～0.2
15 Petroleum-type mg/L ≤5
16 Total number of bacteria Individual/ml ＜1000
(2) Desalting Water System is produced water water quality: electrical conductivity≤0.2 μ s/cm (25 DEG C), SiO2Content≤20 μ g/L.
5. technological process
In copper mine, the process flow diagram of water handling reclamation Zero emission device embodiment is referring to accompanying drawing 5.
6. system main design parameters
(1) recycle-water system
Sequence number Title Specifications and models Material Unit Quantity
One Pretreatment system
1 Raw water box V=500m3, join diving mixer P=1.5KW, 2 Concrete structural anticorrosion Seat 1
2 Raw water pump (1 use 1 is standby) Q=220m3/h，H=20m，P=22kW Flow passage components cast iron Platform 2
3 Accelerator (1 use 1 is standby) Aquifer yield >=200m3/ h/ seat, pond body size Φ 7500mm, joins mixer, mud scraper, inclined tube Concrete structural anticorrosion Seat 2
4 Accelerator sludge pump (1 use 1 is standby) Screw pump, solid content 8%, Q=5m3/h，H=30m，P=1.1kW Cast iron Platform 2
5 Sludge conditioning pond 100m3, join mud scraper Concrete structural anticorrosion Seat 1
6 Filtered water tank V=300m3 Concrete structural anticorrosion Platform 1
7 Multimedium feed pump (1 use 1 is standby) Q=201m3/ h, H=40m, P=37kW, joins frequency converter Flow passage components cast iron Platform 2
8 More medium filter (3 use 1 are standby) Φ3600，Q=66.9m3/ h. platform, operation flow velocity 6.6m/h. Platform 4
9 Multimedium backwash water pump (1 use 1 is standby) Q=440m3/h, H=20m, P=55kW; Centrifugal pump of horizontal axis. Cast iron Platform 2
10 Backwash blower fan (1 use 1 is standby) Q=25Nm3/min, voltage rise 68.6KPa, P=45kw Cast iron Platform 2
11 Backwash waste case V=200m3 Concrete structural anticorrosion Seat 1
Two Ultrafiltration system
1 Self-cleaning filter Q=201m3/ h/ platform, filtering accuracy 100 μ m Filter screen SS304 Cover 1
2 Ultrafiltration apparatus Clean aquifer yield: Q=89.8m3/h cover, Re >=90%, milipore filter: SN-UF-0860,50m2/, 40/cover Cover 2
3 Hyperfiltration reverse-rinsing water pump (1 use 1 is standby) Q=200m3/ h, H=20m, P=22kW, joins frequency converter Flow passage components SS304 Platform 2
4 Hyperfiltration reverse-rinsing cartridge filter DN150, filtration progress 100 μ m, shell carbon steel is anticorrosion, duct type Filter screen SS316 Platform 1
5 Ultrafiltration water tank V=200m3 Concrete structural anticorrosion Platform 1
6 Ultrafiltration cleaning device Cleaning case: V=3m3(PE), distribution heater Cover 1
7 Ultrafiltration scavenging pump Q=90m3/h，H=25m，P=11kW Flow passage components SS316 Platform 1
8 Ultrafiltration filter rinsed Diameter of phi 400, filtering accuracy is 5 μ m, Q=90m3/h joins 3 of the collapsible large flow filter elements of 5 μ m Shell SS316 Platform 1
Three First-stage reverse osmosis system
1 One-level RO feed pump (1 use 1 is standby) Q=210.3m3/h，H=30m，P=30kW Flow passage components SS304 Platform 2
2 One-level RO cartridge filter Diameter of phi 400, filtering accuracy is 5 μ m, Q=106m3/h platform is joined 3/platform of the collapsible large flow filter element of 5 μ m. Shell SS304 Platform 2
3 One-level RO high-pressure pump Q=106m3/h, H=110m, N=45kW, joins frequency converter Flow passage components SS304 Platform 2
4 One-level RO device Q=68.35m3/h cover, Re=65%, RO film: 96/cover, model: BW30FR-400/34 Cover 2
5 Flush water pump Q=88m3/h，H=30m，P=15kW Flow passage components SS304 Platform 1
6 One-level sweet-water tank V=200m3 Concrete structural anticorrosion Seat 1
7 Recirculated water make-up pump (1 use 1 is standby) Q=50.2m3/h，H=50m，P=11kW Flow passage components SS304 Platform 2
8 Counter-infiltration system cleaning device Cleaning case: V=5m3(PE), distribution heater Cover 1
9 Scavenging pump Q=88m3/h，H=40m，P=18.5kW Flow passage components SS304 Platform 1
10 Clean cartridge filter Diameter of phi 350, filtering accuracy is 5 μ m, Q=88m3/h joins 2 of the collapsible large flow filter elements of 5 μ m Shell SS304 Platform 1
Four Dense water counter-infiltration system
1 The dense water tank of one-level RO V=100m3 Concrete structural anticorrosion Platform 1
2 Dense water RO feed pump (1 use 1 is standby) Q=74m3/h，H=30m，P=11kW Flow passage components SS304 Platform 2
3 Dense water RO cartridge filter Diameter of phi 350, filtering accuracy is 5 μ m, Q=74m3/h/ platform is joined 2 of the collapsible large flow filter elements of 5 μ m Shell SS316 Platform 1
4 Dense water reverse osmosis high-pressure pump Q=74m3/h, H=120m, P=37kW, joins frequency converter Flow passage components SS316 Platform 1
5 Dense water RO device Q=44.2m3/h cover, Re=60%, RO film: 66/cover, model: BW30FR-400/34 Cover 1
6 Dense water RO flush water pump Q=56m3/h，H=30m，P=11kW Flow passage components SS304 Platform 1
Five Medicine system Supporting lime, soda ash, coagulant, flocculation aid, hydrochloric acid, clorox, reducing agent, antisludging agent, non oxidizing bactericide medicine system Cover 1
Six Electric, instrument control Comprise system power, control on the spot system meter, PLC and host computer Cover 1
Seven Fire-fighting, HVAC, communication, lightning protection Recycle-water system, Desalting Water System and Zero discharging system share Batch 1
(2) Desalting Water System
Sequence number Title Specifications and models Material Unit Quantity
One Secondary RO system
1 Secondary RO feed pump (1 use 1 is standby) Q=131m3/h，H=30m，P=18.5kW Flow passage components SS304 Platform 2
2 Secondary RO cartridge filter Diameter of phi 350, filtering accuracy is 5 μ m, Q=66m3/h platform is joined 2/platform of the collapsible large flow filter element of 5 μ m Shell SS304 Platform 2
3 Secondary RO high-pressure pump (VFC) Q=66m3/h, H=130m, N=37kW, joins frequency converter Flow passage components SS304 Platform 2
4 Secondary RO device Q=55.55m3/h cover, Re=85%, 48/cover of RO film, model: BW30-400IG Cover 2
5 Secondary RO produces water tank V=100m3 Concrete structural anticorrosion Seat 1
6 Two-stage reverse osmosis system cleaning device Share with recycle-water system counter-infiltration cleaning device
Two EDI system
2 EDI feed pump (1 use 1 is standby) Q=111.1m3/h，H=55m，P=30kW Flow passage components SS304 Platform 2 9 -->
3 EDI cartridge filter Diameter of phi 350, filtering accuracy is 1 μ m, Q=56m3/h platform is joined 2/platform of the collapsible large flow filter element of 5 μ m Shell SS304 Platform 2
4 EDI device Q=50m3/h cover, Re=90%, 10/platform of EDI film piece, model: E-Cell-3X Cover 2
5 EDI cleaning device Share with recycle-water counter-infiltration purging system
6 Sweet-water tank V=200m3 Concrete structural anticorrosion Seat 1
7 Desalination water pump (1 use 1 is standby) Q=100m3/h，H=50m，P=22kW Flow passage components SS304 Platform 2
Three Medicine system Supporting alkali, ammonia medicine system Cover 1
Four Electric, instrument control Comprise system power, control on the spot system meter, PLC and host computer Cover 1
(3) strong brine Zero discharging system
Sequence number Title Specifications and models Material Unit Quantity
One DF film melded system
1 Strong brine collecting box V=100m3 Concrete structural anticorrosion Platform 1
2 DF film system feed pump (1 use 1 is standby) Q=40m3/h，H=15m，P=5.5kW Flow passage components SS304 Platform 2
3 1# coagulation reaction tank V=20m3, join mixer Carbon steel is anticorrosion Platform 1
4 2# coagulation reaction tank V=20m3, join mixer Carbon steel is anticorrosion Platform 1
5 Concentration basin V=20m3 Carbon steel is anticorrosion Platform 1
6 Circulating pump Q=80m3/h，H=38m，P=15KW Flow passage components SS304 Platform 3
7 Sludge pump Screw pump, Q=5m3/h，H=30m，P=1.1KW Platform 1
8 DF film device Q=40m3/ h, 36/cover of DF film, model: DF810W Cover 1
9 Produce water collection tank V=100m3 Concrete structural anticorrosion Platform 1
10 DF film cleaning device DF film cleaning case: V=3m3(PE) 3 Cover 1
11 DF film scavenging pump (1 use 1 is standby) Q=45m3/h，H=30m，P=7.5kW Flow passage components SS316L Platform 2
Two Strong brine RO system
1 Strong brine RO feed pump (1 use 1 is standby) Q=38.8m3/h，H=30m，P=5.5kW Flow passage components SS304 Platform 2
2 Strong brine RO cartridge filter Diameter of phi 220, filtering accuracy is 5 μ m, Q=38.8m3/h/ platform is joined 1/platform of the collapsible large flow filter element of 5 μ m Enclosure material SS316 Platform 1
3 Strong brine RO high-pressure pump Q=38.8m3/h, H=160m, P=30kW, joins frequency converter Flow passage components SS304 Platform 1
4 Strong brine RO device Q=23.28m3/h cover, Re=60%, 36/cover of RO film, model: BW30FR-400/34 Cover 1
5 The dense water tank of strong brine RO V=15m3 FRP Platform 1
Three STRO system
1 STRO is to pump (1 use 1 is standby) Q=15.5m3/h，H=45m，P=11kW Flow passage components SS316 Platform 2
2 STRO cartridge filter Filtering accuracy is 5 μ m, and Q=15.5m3/h/ platform is joined 5 μ m PP spray welding filter elements, 8/platform Carbon steel line with rubber Platform 1
3 High-pressure pump Q=15.5m3/h, H=600m, N=45kW, joins frequency converter Dual phase steel 2205 Platform 1
4 Circulating pump Q=28.5m3/h, H=35m, N=5.5kW, inlet pressure 6.0MPa Dual phase steel 2205 Platform 2
5 STRO counter-infiltration The rate of recovery 70%, 10.9m3/h, 30/cover of STRO film, single membrane area 25m2 Combination Platform 1
6 Clean water tank 2m3 PE Platform 1
7 Flushing water pump Q=22m3/h，H=28m，N=3kW Flow passage components SS316 Platform 3
8 1# cleaning agent barrel pump PFP-40， Q=500L/h P=1.0bar N=0.64W PVC Platform 1
9 1# cleaning agent storage tank V=1000L PE Platform 1
10 2# cleaning agent barrel pump PFP-40， Q=500L/h P=1.0bar N=0.64W PVC Platform 1
11 2# cleaning agent storage tank V=1000L PE Platform 1
13 Super strong brine case V=5m3 FRP Platform 1
14 Super strong brine delivery pump (1 use 1 is standby) Q=5m3/h，H=40m，P=1.1kW Flow passage components SS2205 Platform 2
Four Evaporation and crystallization system Q=4.7m3/h, quadruple effect+forced circulation Cover 1
Five Medicine system Supporting milk of lime, soda ash, coagulant, bactericide, product water pH value regulate HCl, antisludging agent, non-oxide bactericide medicine system Cover 1
Six Electric, instrument control Comprise system power, control on the spot system meter, PLC and host computer Cover 1
Recycle-water system, Desalting Water System and strong brine Zero discharging system are built film workshop (123mX21m, headroom 6m), mistake jointly in additionBetween filter workshop (30mX15m, headroom 7.5m), lime and soda ash dosing (42mX15m, headroom 7.5m).

Claims (9)

1. water treatment retracting device in copper smelting, is characterized in that comprising pretreatment melded system (1), one-level desalination treatment system(2), secondary desalination treatment system (3), strong brine zero-discharge treatment system (4); Wherein copper smelt in water pipe A to receive pretreatment softThe water inlet of change system (1), the water outlet G of pretreatment melded system (1) receives the water inlet of one-level desalination treatment system (2), pre-Process the mud mouth of melded system (1) and discharge the softening mud B of pretreatment, the one-level demineralized water H of one-level desalination treatment system (2) connectsReceive one-level demineralized water replenishment cycles water E to the water inlet of secondary desalination treatment system (3) simultaneously1, one-level desalination treatment system(2) dense water J receives the water inlet of strong brine zero-discharge treatment system (4), the concentrate recirculation I of secondary desalination treatment system (3)Receive the backflow water inlet of pretreatment melded system (1), the delivery port of secondary desalination treatment system (3) is sent demineralized water D, dense saltThe delivery port of water zero discharge treatment system (4) is sent replenishment cycles water E2, the salt outlet of strong brine zero-discharge treatment system (4) sendGo out abraum salt F, the mud mouth of strong brine zero-discharge treatment system (4) is sent strong brine zero-discharge treatment system mud C.
2. water treatment retracting device in copper smelting according to claim 1, is characterized in that described pretreatment melded system(1), its structure comprises raw water box (1-1), accelerator (1-2), filtered water tank (1-3), high efficiency particulate air filter (1-4), 100Water tank (1-7), Ca (OH) are produced in micron disc-type filter (1-5), ultrafiltration apparatus (1-6), ultrafiltration2/Na2CO3/ PAC/PAM/ killsMicrobial inoculum throwing device (1-8), HCl throwing device (1-9), ultrafiltration on-line cleaning chemicals dosing plant (1-10), raw water pump (1-11), heightEffect filter feed pump (1-12), high efficiency particulate air filter backwash water pump (1-13), high efficiency particulate air filter backwash blower fan (1-14), ultrafiltration are anti-Wash blower fan (1-15), first-stage reverse osmosis feed pump (1-16), hyperfiltration reverse-rinsing water pump (1-17); Wherein in copper smelting, water pipe A receivesThe water inlet of raw water box (1-1), the delivery port of raw water box (1-1) is received accelerator (1-by raw water pump (1-11)2) water inlet, Ca (OH)2/Na2CO3Mechanical agitation is also received in the dosing outlet of/PAC/PAM/ bactericide throwing device (1-8)The water inlet of depositing reservoir (1-2), the mud discharging mouth of accelerator (1-2) is discharged the softening mud B(decontaminated water processing of pretreatmentStand), the delivery port of accelerator (1-2) is received the water inlet of filtered water tank (1-3), and the delivery port of filtered water tank (1-3) is logicalCross high efficiency particulate air filter feed pump (1-12) and receive the water inlet of high efficiency particulate air filter (1-4), the delivery port of filtered water tank (1-3) also passes throughHigh efficiency particulate air filter backwash water pump (1-13) is received the backwash water inlet of high efficiency particulate air filter (1-4), and HCl throwing device (1-9) goes outMedicine mouth is also received the water inlet of high efficiency particulate air filter (1-4), and the air outlet of high efficiency particulate air filter backwash blower fan (1-14) is received efficiently mistakeThe backwash air inlet of filter (1-4), the delivery port of high efficiency particulate air filter (1-4) is received entering of 100 microns disc-type filter (1-5)The mouth of a river, the delivery port of 100 microns of disc-type filters (1-5) is received the water inlet of ultrafiltration apparatus (1-6), ultrafiltration apparatus (1-6)Delivery port receive ultrafiltration and produce the water inlet of water tank (1-7), the concentrate recirculation I of secondary desalting system receives ultrafiltration and produces water tank (1-7) recirculation water water inlet, ultrafiltration is produced the delivery port of water tank (1-7) and is sent pretreatment by first-stage reverse osmosis feed pump (1-16)The water outlet G of melded system, ultrafiltration is produced the delivery port of water tank (1-7) and is also received ultrafiltration apparatus by hyperfiltration reverse-rinsing water pump (1-17)(1-6) backwash water inlet, the backwash that the medicine outlet of ultrafiltration on-line cleaning chemicals dosing plant (1-10) is also received ultrafiltration apparatus (1-6)Water inlet, the air outlet of hyperfiltration reverse-rinsing blower fan (1-15) is received the backwash air inlet of ultrafiltration apparatus (1-6), high efficiency particulate air filter (1-4) the backwash draining of backwash discharge outlet, the backwash discharge outlet of 100 microns of disc-type filters (1-5) and ultrafiltration apparatus (1-6)Mouth is all received the backflow water inlet of raw water box (1-1).
3. water treatment retracting device in copper smelting according to claim 1, is characterized in that described one-level desalination processing systemSystem (2), its structure comprises first-stage reverse osmosis cartridge filter (2-1), first-stage reverse osmosis device (2-2), the dense water of first-stage reverse osmosisCase (2-3), dense water reverse osmosis cartridge filter (2-4), dense water reverse osmosis unit (2-5), one-level sweet-water tank (2-6), reductionAgent/antisludging agent/non-oxide bactericide throwing device (2-7), scale inhibitor feeding device (2-8), first-stage reverse osmosis high-pressure pump (2-9), dense water reverse osmosis feedwater pump (2-10), dense water reverse osmosis high-pressure pump (2-11), two-pass reverse osmosis feed pump (2-12), one-levelDemineralized water circulating cooling make-up water pump (2-13);
Secondary desalination treatment system (3), its structure comprises two-pass reverse osmosis cartridge filter (3-1), second level reverse osmosis apparatus (3-2), two-pass reverse osmosis produce water tank (3-3), EDI cartridge filter (3-4), electric deionizer (3-5), sweet-water tank (3-6),NaOH throwing device (3-7), two-pass reverse osmosis high-pressure pump (3-8), EDI feed pump (3-9), desalination water pump (3-10); Wherein pre-The outlet pipe G for the treatment of system receives the water inlet of first-stage reverse osmosis cartridge filter (2-1), reducing agent/antisludging agent/non-oxide killingThe medicine outlet of microbial inoculum throwing device (2-7) is also received the water inlet of first-stage reverse osmosis cartridge filter (2-1), and first-stage reverse osmosis is protectedThe water inlet that the delivery port of peace filter (2-1) is received first-stage reverse osmosis device (2-2) by first-stage reverse osmosis high-pressure pump (2-9)Mouthful, the product water out of first-stage reverse osmosis device (2-2) is received the 2# water inlet of one-level sweet-water tank (2-6), first-stage reverse osmosis dressThe dense water out of putting (2-2) is received the water inlet of the dense water tank of first-stage reverse osmosis (2-3), and first-stage reverse osmosis dense water tank (2-3) goes outThe water inlet of dense water reverse osmosis cartridge filter (2-4) is received at the mouth of a river by dense water reverse osmosis feedwater pump (2-10), antisludging agent is thrownThe medicine outlet of feeder apparatus (2-8) is also received the water inlet of dense water reverse osmosis cartridge filter (2-4), and dense water reverse osmosis cartridge filtersThe delivery port of device (2-4) is received the water inlet of dense water reverse osmosis unit (2-5), dense water by dense water reverse osmosis high-pressure pump (2-11)The product water out of reverse osmosis unit (2-5) is received the 1# water inlet of one-level sweet-water tank (2-6), dense water reverse osmosis unit (2-5)Dense water out send the dense water J of primary demineralixation system, the delivery port of one-level sweet-water tank (2-6) circulates by one-level demineralized waterWater small pump (2-13) is sent one-level demineralized water replenishment cycles water E1; The delivery port of one-level sweet-water tank (2-6) also passes through secondaryReverse osmosis feedwater pump (2-12) is received the water inlet of two-pass reverse osmosis cartridge filter (3-1), and NaOH throwing device (3-7) goes outMedicine mouth is also received the water inlet of two-pass reverse osmosis cartridge filter (3-1), the delivery port of two-pass reverse osmosis cartridge filter (3-1)Receive the water inlet of second level reverse osmosis apparatus (3-2) by two-pass reverse osmosis high-pressure pump (3-8), second level reverse osmosis apparatus (3-2)Product water out receive two-pass reverse osmosis produce water tank (3-3) water inlet, two-pass reverse osmosis produce water tank (3-3) delivery port pass throughEDI feed pump (3-9) is received the water inlet of EDI cartridge filter (3-4), and the delivery port of EDI cartridge filter (3-4) is received electricityThe water inlet of deionizer (3-5), the dense water out of second level reverse osmosis apparatus (3-2) and electric deionizer (3-5) denseWater out is sent the concentrate recirculation I of secondary desalting system, and the product water out of electric deionizer (3-5) is received sweet-water tank (3-6) water inlet, the delivery port of sweet-water tank (3-6) is sent demineralized water D by desalination water pump (3-10).
4. water treatment retracting device in copper smelting according to claim 1, is characterized in that described strong brine zero-emission placeReason system (4), its structure comprises DF film softening plant (4-1), strong brine reverse osmosis cartridge filter (4-2), strong brine reverse osmosisDevice (4-3), strong brine zero-discharge treatment system produce water tank (4-4), the reverse osmosis concentrated water tank of strong brine (4-5), STRO security personnel thoroughlyFilter (4-6), ductwork type reverse osmosis unit (4-7), vaporising device (4-8), Ca (OH)2/Na2CO3/ Polyferric Sulfate/bactericide is thrownFeeder apparatus (4-9), HCl/ antisludging agent/non-oxide bactericide throwing device (4-10), antisludging agent/non-oxide bactericide throwing device(4-11), strong brine reverse osmosis feedwater pump (4-12), strong brine reverse osmosis high-pressure pump (4-13), strong brine zero discharge treatment are produced waterCirculating cooling make-up water pump (4-14), STRO feed pump (4-15), STRO high-pressure pump (4-16); The wherein dense water pipe of primary demineralixation systemJ receives the water inlet of DF film softening plant (4-1), Ca (OH)2/Na2CO3The drug of/Polyferric Sulfate/bactericide throwing device (4-9)Mouth is also received the water inlet of DF film softening plant (4-1), and the mud discharging mouth of DF film softening plant (4-1) is sent strong brine zero-emission placeReason system sludge C(decontaminated water treating stations), the delivery port of DF film softening plant (4-1) is by strong brine reverse osmosis feedwater pump (4-12) receive the water inlet of strong brine reverse osmosis cartridge filter (4-2), HCl/ antisludging agent/non-oxide bactericide throwing device (4-10) medicine outlet is also received the water inlet of strong brine reverse osmosis cartridge filter (4-2), strong brine reverse osmosis cartridge filter(4-2) delivery port is received the water inlet of strong brine reverse osmosis unit (4-3) by strong brine reverse osmosis high-pressure pump (4-13), denseThe product water out of salt solution reverse osmosis unit (4-3) is received the water inlet of strong brine zero-discharge treatment system product water tank (4-4), dense saltThe delivery port that water zero discharge treatment system is produced water tank (4-4) produces water circulation water small pump (4-14) by strong brine zero discharge treatmentSend the product water replenishment cycles water E of strong brine zero-discharge treatment system2, the dense water out of strong brine reverse osmosis unit (4-3) connectsTo the water inlet of the reverse osmosis concentrated water tank of strong brine (4-5), the delivery port of the reverse osmosis concentrated water tank of strong brine (4-5) feeds water by STROPump (4-15) is received the water inlet of STRO cartridge filter (4-6), and antisludging agent/non-oxide bactericide throwing device (4-11) goes outMedicine mouth is also received the water inlet of STRO cartridge filter (4-6), and the delivery port of STRO cartridge filter (4-6) is by STRO high pressurePump (4-16) is received the water inlet of ductwork type reverse osmosis unit (4-7), and the dense water out of ductwork type reverse osmosis unit (4-7) is receivedThe water inlet of vaporising device (4-8), the condensate liquid of the product water out of ductwork type reverse osmosis unit (4-7) and vaporising device (4-8)The water inlet of strong brine zero-discharge treatment system product water tank (4-4) is also received in outlet, and the salt outlet of vaporising device (4-8) is sent uselessSalt F.
5. in copper smelting as claimed in claim 1, Zero emission method is reclaimed in water treatment, it is characterized in that comprising the steps:
(1) pretreatment is softening: the milk of lime 200～1000mg/L, the quality that in copper is smelted, in water, add mass concentration 5～10%The soda ash of concentration 5～10% (200～800mg/L, flocculant 20～80mg/L and bactericide 20～70mg/L soften processing,Discharge the softening mud of pretreatment by precipitation, multistage filtering, soften and residual hardness of water≤1.0mmol/L, be beneficial to follow-upDesalination, concentrated, evaporation process;
(2) one-level desalination processing: the water outlet of pretreatment melded system is by first-stage reverse osmosis device, the rate of recovery: 60～75% carry outPreliminary desalination, and utilize dense water reverse osmosis unit, the rate of recovery: 55～70%, the dense water of first-stage reverse osmosis device is tentatively taken offSalt, to improve the rate of recovery 82～92.5% of whole single stage desalting water;
(3) secondary desalination processing: one-level demineralized water passes through the second level reverse osmosis apparatus rate of recovery: 85～95%, further desalination, soAfter carry out advanced desalination by electric deionizer again, the dense water of second level reverse osmosis apparatus and electric deionizer returns to pretreatmentMelded system is processed again; The product water of electric deionizer has reached the requirement of desalted water completely, and Desalting Water System is produced water water qualityFor: electrical conductivity≤0.2 μ s/cm (25 DEG C), SiO2Content≤20 μ g/L;
(4) strong brine zero discharge treatment: the dense water of primary demineralixation system enters DF film softening plant, by adding mass concentration 5Milk of lime 400～1200mg/L of～10%, the soda ash 100～500mg/L of mass concentration 5～10%, flocculant 20～80mg/L,Bactericide 20～70mg/L, softens processing, and its thickened sludge is sent to Sewage Disposal processing, and its softening water outlet is through overrich saltWater reverse osmosis unit, the rate of recovery: 50～70% concentrated, then be 50～70kg/cm through excess pressure2Ductwork type counter-infiltration dressPut the rate of recovery: 60～80%, further the degree of depth is concentrated, and the dope of ductwork type reverse osmosis unit evaporates through vaporising device ZF,Output abraum salt F; The condensed water of the product water of strong brine reverse osmosis unit, the product water of ductwork type reverse osmosis unit and vaporising device ZFWater quality is better than " Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 Standard of reclaimed water, whereinpH：7.0～8.5、Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L, be back to recirculated water.
6. in copper smelting as claimed in claim 1, Zero emission method is reclaimed in water treatment, it is characterized in that in described step (1)In copper smelting, water A is successively by raw water box T1, raw water pump P1, accelerator MCT, filtered water tank T2, high efficiency particulate air filter feedwaterPump P2, high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UF, ultrafiltration produce water tank T3, first-stage reverse osmosis givesWater pump P4Until send the water outlet G of pretreatment melded system; Wherein water A and high efficiency particulate air filter HEF, 100 microns of dish in copper smeltingThe backwash water of chip filter DCF, ultrafiltration apparatus UF is at raw water box T1The adjusting of water quality and quantity is carried out in middle mixing, and by raw water pumpP1Send into accelerator MCT and soften processing; Utilize Ca (OH) at accelerator MCT2/Na2CO3/PAC/PAM/ bactericide throwing device D1Feeding lime breast concentration 5～10%, soda ash concentration 5～10%, PAC, PAM and bactericide,Utilize after lime, the softening precipitation process of soda ash, water outlet hardness leakage≤1.0mmol/L of accelerator MCT, and dischargeMud B is softened in pretreatment; The water outlet of accelerator MCT enters filtered water tank T2, through high efficiency particulate air filter feed pump P2Pressurization firstAfter carry out multipole filtration through high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UF, filtering machinery stirsMix the laggard ultrafiltration product water tank T of entering of particle in depositing reservoir MCT water outlet3, the concentrate recirculation I of secondary desalting system also enters ultrafiltrationProduce water tank T3, and through first-stage reverse osmosis feed pump P4Send the water outlet G of pretreatment melded system; Due to accelerator MCTThe pH of water outlet is 10～11, before high efficiency particulate air filter HEF, utilize HCl throwing device D2Add hydrochloric acid pH is adjusted back to 7.5～8.5, high efficiency particulate air filter HEF utilizes high efficiency particulate air filter backwash water pump P3With high efficiency particulate air filter backwash blower fan B1Regularly carry out air water anti-Wash; Ultrafiltration apparatus UF utilizes hyperfiltration reverse-rinsing blower fan B2, hyperfiltration reverse-rinsing water pump P5With ultrafiltration on-line cleaning chemicals dosing plant D3Regularly carry outThe backwash of online dosing chemistry air water; The backwash row of high efficiency particulate air filter HEF, 100 microns of disc-type filter DCF, ultrafiltration apparatus UFWater returns to raw water box T1Again process.
7. in copper smelting as claimed in claim 1, Zero emission method is reclaimed in water treatment, it is characterized in that in described step (2)Water outlet is by one-level desalination treatment system DS1, and the water outlet G of specifically pretreatment melded system ensures public security by first-stage reverse osmosis successivelyFilter SAF1, first-stage reverse osmosis high-pressure pump P6, first-stage reverse osmosis device RO1, the dense water tank T4 of first-stage reverse osmosis, dense water counter-infiltrationFeed pump P7, dense water reverse osmosis cartridge filter SAF2, dense water reverse osmosis high-pressure pump P8, dense water reverse osmosis unit ROC, one-level are removedBrine tank T5, until one-level demineralized water circulating cooling make-up water pump P10 sends one-level demineralized water replenishment cycles water E1; Wherein pretreatment is softThe water outlet G of change system filters first-stage reverse osmosis device RO1 is protected through first-stage reverse osmosis cartridge filter SAF1, simultaneouslyAdd reducing agent, antisludging agent, non-oxide bactericide by reducing agent/antisludging agent/non-oxide bactericide throwing device D4 furtherProtection first-stage reverse osmosis device RO1, then through first-stage reverse osmosis high-pressure pump P6 pressure: the 10～15kg/cm that adds high pressure2, utilize one-levelThe reverse osmosis unit RO1 rate of recovery: 60～75%, carry out preliminary desalting processing, the product water of first-stage reverse osmosis device RO1 enters one-levelSweet-water tank T5; The dense water of first-stage reverse osmosis device RO1 enters the dense water tank T4 of first-stage reverse osmosis, and by dense water reverse osmosis feedwater pumpP7 pressurization, filters dense water reverse osmosis unit ROC is protected through overrich water reverse osmosis cartridge filter SAF2, simultaneously by resistanceDirt agent throwing device D5 adds antisludging agent dense water reverse osmosis unit ROC is protected, then through overrich water reverse osmosis high-pressure pump P8Pressure adds high pressure: 11～20kg/cm2, utilize the dense water reverse osmosis unit ROC rate of recovery: 55～70%, carry out preliminary desalination placeReason, reaches 82～92.5% with the rate of recovery that improves whole single stage desalting water, and the dense water of dense water reverse osmosis unit ROC is one-levelThe dense water J of desalting system, delivers to strong brine zero-discharge treatment system CWZLD and processes; The product water of dense water reverse osmosis unit ROCAlso enter one-level sweet-water tank T5, be one-level demineralized water, its water quality is better than " Code for design of industrial recirculating cooling water treatment "(GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0～8.5, Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L),Part one-level demineralized water utilizes two-pass reverse osmosis feed pump P9 to deliver to secondary desalination treatment system DS2 and produces demineralized water; Its remaining partPoint one-level demineralized water utilizes one-level demineralized water circulating cooling make-up water pump P10 to send one-level demineralized water replenishment cycles water E1.
8. in copper smelting as claimed in claim 1, Zero emission method is reclaimed in water treatment, it is characterized in that described described step(3) one-level demineralized water is by secondary desalination treatment system DS2, and specifically one-level demineralized water was ensured public security by two-pass reverse osmosis successivelyFilter SAF3, two-pass reverse osmosis high-pressure pump P11, second level reverse osmosis apparatus RO2, two-pass reverse osmosis produce water tank T6, EDI feed pumpP12, EDI cartridge filter SAF4, electric deionizer EDI, sweet-water tank T7 are until desalination water pump P13 sends demineralized water D;Wherein one-level demineralized water filters to protect second level reverse osmosis apparatus RO2 by two-pass reverse osmosis cartridge filter SAF3, simultaneously profitAdd NaOH with NaOH throwing device D6 and improve pH, by two-pass reverse osmosis high-pressure pump P11 pressure: the 10～15kg/ that adds high pressurecm2, utilize the second level reverse osmosis apparatus rate of recovery: 85～95%, further desalination, the product water of second level reverse osmosis apparatus RO2 enters twoThe reverse osmosis produced water tank T6 of level, through EDI feed pump P12 pressurization, by EDI cartridge filter SAF4Filter with protection electrodeionizationDevice EDI, carries out advanced desalination by electric deionizer EDI; Dense water and the electric deionizer of second level reverse osmosis apparatus RO2The concentrate recirculation I that the dense water of EDI is secondary desalting system returns to pretreatment melded system SPT and again processes; Electrodeionization dressThe product water of putting EDI has reached the requirement of desalted water completely, and Desalting Water System is produced water water quality and is: electrical conductivity≤0.2 μ s/cm (25℃)、SiO2Content≤20 μ g/L, the product water of electric deionizer EDI enters sweet-water tank T7, utilizes desalination water pump P13 to sendDemineralized water D.
9. in copper smelting as claimed in claim 1, Zero emission method is reclaimed in water treatment, it is characterized in that described step (4) one-levelThe dense water J of desalting system is by strong brine zero-discharge treatment system CWZLD, and specifically the dense water J of primary demineralixation system is logical successivelyCross DF film softening plant DFS, strong brine reverse osmosis feedwater pump P14, strong brine reverse osmosis cartridge filter SAF5, strong brine reverse osmosisHigh-pressure pump P thoroughly15, strong brine reverse osmosis unit CWRO, the reverse osmosis concentrated water tank T of strong brine8, STRO feed pump P16, STRO ensured public securityFilter SAF6, STRO high-pressure pump P17, ductwork type reverse osmosis unit STRO, vaporising device ZF be until send abraum salt F; Wherein one-levelThe dense water J of desalting system enters DF film softening plant DFS, by Ca (OH)2/Na2CO3/ Polyferric Sulfate/bactericide throwing device D7ThrowAdd lime milk concentration 5～10%, soda ash concentration 5～10%, flocculant, bactericide, soften processing, send strong brine zero-emissionTreatment system mud C, softening water outlet is through strong brine reverse osmosis feedwater pump P14Pressurization, through strong brine reverse osmosis cartridge filterSAF5Filter with protection strong brine reverse osmosis unit CWRO, then by strong brine reverse osmosis high-pressure pump P15Pressure adds high pressure: 15～25kg/cm2, utilize the strong brine reverse osmosis unit CWRO rate of recovery: 50～70% concentrate, strong brine reverse osmosis unit CWROProduct water enter strong brine zero-discharge treatment system and produce water tank T9, it is anti-that the dense water of strong brine reverse osmosis unit CWRO enters strong brinePermeate dense water tank T8, then pass through STRO feed pump P16Pressurization, through STRO cartridge filter SAF6Filter with protection ductwork type anti-Permeability apparatus STRO, simultaneously by antisludging agent/non-oxide bactericide throwing device D9Add antisludging agent and non-oxide bactericide withProtection ductwork type reverse osmosis unit STRO, then by STRO high-pressure pump P17Pressure adds high pressure: 50～70kg/cm2, utilize pipe networkThe formula reverse osmosis unit STRO rate of recovery: 60～80% further degree of depth are concentrated, the dope of ductwork type reverse osmosis unit STRO is through evaporationDevice ZF evaporates, output abraum salt F; The product water of ductwork type reverse osmosis unit STRO and the condensed water of vaporising device ZF enter denseSalt solution zero-discharge treatment system produces water tank T9, strong brine zero-discharge treatment system produces water tank T9In three part mixing water strong brinesThe water quality of product water, the product water of ductwork type reverse osmosis unit STRO and the condensed water of vaporising device ZF of reverse osmosis unit CWRO is better than" Code for design of industrial recirculating cooling water treatment " (GB50050-2007) 6.1.3 Standard of reclaimed water (wherein pH:7.0～8.5、Cl-﹤ 250mg/L, TDS ﹤ 1000mg/L), produce water circulation water small pump P by strong brine zero discharge treatment18Send strong brineThe product water replenishment cycles water E of zero-discharge treatment system2Thereby, reach the object of recycle-water and zero-emission.
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