CN107935289A - A kind of electroplating wastewater zero processing system - Google Patents

A kind of electroplating wastewater zero processing system Download PDF

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Publication number
CN107935289A
CN107935289A CN201711417685.XA CN201711417685A CN107935289A CN 107935289 A CN107935289 A CN 107935289A CN 201711417685 A CN201711417685 A CN 201711417685A CN 107935289 A CN107935289 A CN 107935289A
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China
Prior art keywords
effect
water
pump
reverse osmosis
enters
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Withdrawn
Application number
CN201711417685.XA
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Chinese (zh)
Inventor
丁曙东
刘华
陈波昌
姚振璇
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QINGDAO GUOBIAO ENVIRONMENTAL PROTECTION ENGINEERING CO Ltd
Original Assignee
QINGDAO GUOBIAO ENVIRONMENTAL PROTECTION ENGINEERING CO Ltd
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Priority to CN201711417685.XA priority Critical patent/CN107935289A/en
Publication of CN107935289A publication Critical patent/CN107935289A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/043—Details
    • 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
    • C02F1/048—Purification of waste water by 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • 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
    • C02F2301/06—Pressure conditions
    • C02F2301/066—Overpressure, high pressure
    • 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
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a kind of electroplating wastewater zero processing system, including pretreatment, reverse osmosis concentration and evaporative crystallization three parts；Pretreatment portion is divided into electroplating wastewater and enters coagulating groove, and subsequently into settling apparatus, sludge squeezes into chamber filter press, and supernatant sequentially enters sand filter, carbon filter, bag hose, water tank with strainer, ultrafiltration apparatus, forms pretreatment production water；Reverse osmosis concentration part enters first-stage reverse osmosis, pure water reuse for pretreatment production water, and concentrated water enters two-pass reverse osmosis, pure water reuse, and concentrated water goes successively to that three-level is reverse osmosis, and pure water reuse, concentrated water enters dope pond；Evaporative crystallization part flows into an effect separator for concentrated water, and hot steam provides heat source by an effect separator and two effect heater unicom for two effect heaters；The steam of two effect separators leads to triple effect heater again, there is provided last heat.Steam in triple effect separator leads to condenser, is discharged after condensation.The present invention reduces using external circulation evaporator is forced and blocks probability.

Description

A kind of electroplating wastewater zero processing system
Technical field
It is espespecially a kind of to be suitable for electroplating wastewater zero processing system the present invention relates to electroplating wastewater processing field.
Background technology
Existing most countries have been made laws, and limit the concentration and total emission volumn of harmful substance in plating emission in plain text.To promote Recessed region economy and development, promote the adjustment and the change in the style of economic growth of economic structure, and China has also put into effect relevant criterion, The developing direction of electroplate technology and pollutant abatement technology is guided, the common trend for administering plating pollution is to be in plating production Controllable state, the particularly control to its emission.
With electroplating industry fast development and environmental requirement increasingly raising, at present, electroplating wastewater processing started into Enter process for cleanly preparing, overall control and circular economy conformity stage, resource recycling and closed cycle are the mainstreams of development Direction.Electroplating Wastewater Treatment develops into end treatment and Pollution protection one by passive end treatment；By the dilution of pollutant Discharge, develops into harmless emission, the tenor for discharging water is almost nil；Develop into can safely, extensively by burying, burning for sludge Utilize generally；The water resource of the overwhelming majority recycles.Due to water resource shortage and electroplating wastewater environmental pollution it is serious Harmfulness, electroplating enterprise realize that electroplating wastewater zero is the inexorable trend of future development, and caused by solution electroplating industry The only way of environmental pollution.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of processing system of electroplating wastewater zero, including pre- place Reason, reverse osmosis concentration and evaporative crystallization three parts；The pretreatment portion is divided into electroplating wastewater and enters wastewater equalization pond, boosted pump Into coagulating groove, subsequently into settling apparatus, sludge enters sludge-tank, and chamber filter press, supernatant are squeezed into through sludge pump Into transition pond, sand filter, carbon filter, bag hose, water tank with strainer are sequentially entered by filter pump, is filled by filter pump into ultrafiltration Put, form pretreatment production water；The reverse osmosis concentration part enters intermediate water tank 1 for pretreatment production water, enters one through high-pressure pump 1 Level is reverse osmosis, and pure water reuse, concentrated water goes successively to intermediate water tank 2, enters two-pass reverse osmosis, pure water reuse, concentrated water through high-pressure pump 2 Intermediate water tank 3 is gone successively to, reverse osmosis into three-level through high-pressure pump 3, pure water reuse, concentrated water enters dope pond, through dope water pump Get；The evaporative crystallization part feeds regulating valve by an effect through feed pump for concentrated water and controls, and waste water is flowed into an effect separation Device, an effect separator are equipped with an effect separator liquid level sensor, and one imitates the waste water shape after heater is heated by high temperature heat conductive oil Into hot steam by an effect separator and two effect heater unicom, imitate heaters for two and heat source be provided, two imitate the steaming of separators Vapour leads to triple effect heater again, there is provided last heat, the steam in triple effect separator lead to condenser, condenses wherein After discharge.
Further, connected, be connected to by pipeline between the effect heater, two effect heaters, triple effect heater Condenser, is discharged by condensate water discharge pump together.
Further, unicom pipeline sets restriction orifice between the heater, ensures each portion under the suction of vacuum pump The fixed gas divided can discharge, and also can guarantee that the temperature of each several part and the stabilization of vacuum.
The beneficial effects of the invention are as follows：
1st, the concentration situation of change that the present invention is crystallized according to material concentration, property, the rise of boiling point and material, is followed using pressure is outer Ring evaporator, reduce block probability so that reach effect number maximization and area minimum and improve steam evaporation it is strong Degree, and then ensure investment and optimal economic benefit.
2nd, vacuum system of the present invention uses the form of vacuum pump, and vacuum is highly stable, and the adjusting of vacuum is very convenient.
3rd, whole system device structure compact and reasonable of the present invention, arrangement is beautiful, and technique is smooth, safe for operation reliable and stable, It is easy to maintenance, easy to manage.
4th, whole system equipment operation of the present invention is very simple, easy to operate using Automatic Control.
5th, whole system adjusting leeway of the present invention is larger, according to the condition of production, as long as adjusting the mould of inlet amount and heater Block opens quantity, it is possible to convenient to adjust discharge concentration.
6th, the present invention is at each observation and control point, and equipped with observation visor, the observation and control to system are very apparent With it is simple.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the pretreatment unit flow chart that the present invention is suitable for electroplating wastewater zero processing system；
Fig. 2 is the reverse osmosis concentrated compression apparatus flow chart that the present invention is suitable for electroplating wastewater zero processing system；
Fig. 3 is the evaporated crystallization device flow chart that the present invention is suitable for electroplating wastewater zero processing system.
Drawing reference numeral explanation：
1st, wastewater equalization pond；2nd, elevator pump；3rd, coagulating groove；4th, settling apparatus；5th, sludge-tank；6th, sludge pump；7th, case Formula filter press；8th, transition pond；9th, filter pump；10th, sand filter；11st, carbon filter；12nd, bag hose；13rd, water tank with strainer；14th, surpass Filter device；15th, intermediate water tank 1；16th, high-pressure pump 1；17th, first-stage reverse osmosis；18th, two-pass reverse osmosis；19th, high-pressure pump 2；20th, it is middle Water tank 2；21st, three-level is reverse osmosis；22nd, high-pressure pump 3；23rd, intermediate water tank 3；24th, dope pond；25th, dope water pump；26th, feed pump； 27th, an effect charging regulating valve；28th, an effect separator liquid level sensor；29th, an effect heater；30th, an effect separator；31st, two effect Feed regulating valve；32nd, two effect separator liquid level sensor；33rd, two effect heater；34th, two effect separator；35th, triple effect separator Liquid level sensor；36th, triple effect charging regulating valve；37th, triple effect heater；38th, triple effect separator；39th, forced circulation pump；40th, arrange Material pump；41st, condenser；42nd, condensation water tank；43rd, condensate water discharge pump；44th, vacuum pump；45th, mixer；46th, centrifuge；47、 Mother liquor tank；48th, mother liquor reflux pumps.
Embodiment
Elaborate below in conjunction with the accompanying drawings to the present invention.
With reference to Fig. 1, Fig. 2 and Fig. 3, electroplating wastewater zero processing system, including wastewater equalization pond 1, elevator pump 2, coagulation Reactive tank 3, settling apparatus 4, sludge-tank 5, sludge pump 6, chamber filter press 7, transition pond 8, filter pump 9, sand filter 10, carbon filter Device 11, bag hose 12, water tank with strainer 13, ultrafiltration apparatus 14, intermediate water tank 15, high-pressure pump 16, first-stage reverse osmosis 17, two level reverse osmosis Saturating 18, high-pressure pump 19, intermediate water tank 20, three-level reverse osmosis 21, high-pressure pump 22, intermediate water tank 23, dope pond 24, dope water pump 25, feed pump 26, an effect charging regulating valve 27, an effect separator liquid level sensor 28, an effect heater 29, an effect separator 30, two effect charging regulating valves 31, two effect separator liquid level sensors 32, two effect heaters 33, two effect separators 34, triple effect separation Device liquid level sensor 35, triple effect charging regulating valve 36, triple effect heater 37, triple effect separator 38, forced circulation pump 39, discharge pump 40, condenser 41, condensation water tank 42, condensate water discharge pump 43, vacuum pump 44, mixer 45, centrifuge 46, mother liquor tank 47, mother Liquid reflux 48.
The pretreatment portion is divided into electroplating wastewater and enters wastewater equalization pond 1, and boosted pump 2 enters coagulating groove 3, then Into settling apparatus 4, sludge enters sludge-tank 5, and chamber filter press 7 is squeezed into through sludge pump 6, and supernatant enters transition pond 8, warp Filter pump 9 sequentially enters sand filter 10, carbon filter 11, bag hose 12, water tank with strainer 13, enters ultrafiltration apparatus 14 by filter pump 9, Form pretreatment production water；The reverse osmosis concentration part enters intermediate water tank 15 for pretreatment production water, enters one through high-pressure pump 16 Level reverse osmosis 17, pure water reuse, concentrated water goes successively to intermediate water tank 20, enters two-pass reverse osmosis 18 through high-pressure pump 19, pure water returns With concentrated water goes successively to intermediate water tank 23, enters three-level reverse osmosis 21, pure water reuse through high-pressure pump 22, concentrated water enters dope pond 24, got through dope water pump 25；The evaporative crystallization part feeds regulating valve 27 by an effect through feed pump 26 for concentrated water and controls, Waste water is set to flow into an effect separator 30, an effect separator 30 is equipped with an effect separator liquid level sensor 28, and an effect heater 29 is logical The hot steam for crossing the formation of the waste water after high temperature heat-conducting oil heating imitates 33 unicom of heater by an effect separator 30 and two, for two effects Heater 33 provides heat source；The steam of two effect separators 34 leads to triple effect heater 37 again, there is provided last heat.Triple effect Steam in separator 38 leads to condenser 41, is discharged after condensing wherein.
Further, the effect heater 29, two is imitated is connected between heater 33, triple effect heater 37 by pipeline, Condenser 41 is connected to, is discharged together by condensate water discharge pump 43.
Further, unicom pipeline sets restriction orifice between the heater, ensures each portion under the suction of vacuum pump The fixed gas divided can discharge, and also can guarantee that the temperature of each several part and the stabilization of vacuum.
Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although with reference to embodiment of above pair The present invention is described in detail, it will be understood by those of ordinary skill in the art that, technical scheme can be carried out Modification or equivalent substitution should not all depart from the spirit and scope of technical solution of the present invention.

Claims (3)

1. a kind of electroplating wastewater zero processing system, it is characterised in that including pretreatment, reverse osmosis concentration and evaporative crystallization three Part；The pretreatment portion is divided into electroplating wastewater and enters wastewater equalization pond（1）, boosted pump（2）Into coagulating groove （3）, subsequently into settling apparatus（4）, sludge enters sludge-tank（5）, through sludge pump（6）Squeeze into chamber filter press（7）, supernatant Into transition pond（8）, by filter pump（9）Sequentially enter sand filter（10）, carbon filter（11）, bag hose（12）, water tank with strainer （13）, by filter pump（9）Into ultrafiltration apparatus（14）, form pretreatment production water；The reverse osmosis concentration part is pretreatment Production water enters intermediate water tank 1（15）, through high-pressure pump 1（16）Into first-stage reverse osmosis（17）, pure water reuse, during concentrated water is gone successively to Between water tank 2（20）, through high-pressure pump 2（19）Into two-pass reverse osmosis（18）, pure water reuse, concentrated water goes successively to intermediate water tank 3 （23）, through high-pressure pump 3（22）It is reverse osmosis into three-level（21）, pure water reuse, concentrated water enters dope pond（24）, through dope water pump （25）Get；The evaporative crystallization part is concentrated water through feed pump（26）Regulating valve is fed by an effect（27）Control, makes to give up Water flows into an effect separator（30）, an effect separator（30）Equipped with an effect separator liquid level sensor（28）, an effect heater （29）The hot steam that waste water after being heated by high temperature heat conductive oil is formed passes through an effect separator（30）With two effect heaters（33） Unicom, for two effect heaters（33）Heat source, two effect separators are provided（34）Steam lead to triple effect heater again（37）, there is provided most Heat afterwards, triple effect separator（38）In steam lead to condenser（41）, discharged after condensing wherein.
2. electroplating wastewater zero processing system as claimed in claim 1, it is characterised in that the effect heater （29）, two effect heaters（33）, triple effect heater（37）Between connected by pipeline, be connected to condenser（41）, pass through together Condensate water discharge pump（43）Discharge.
3. electroplating wastewater zero processing system as claimed in claim 1, it is characterised in that unicom between the heater Pipeline sets restriction orifice, ensures in vacuum pump（44）Suction under the fixed gas of each several part can discharge, also can guarantee that each several part Temperature and vacuum stabilization.
CN201711417685.XA 2017-12-25 2017-12-25 A kind of electroplating wastewater zero processing system Withdrawn CN107935289A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423885A (en) * 2018-05-22 2018-08-21 佛山市三水万瑞达环保科技有限公司 A kind of electroplating waste processing process
CN112794505A (en) * 2020-12-30 2021-05-14 中冶赛迪工程技术股份有限公司 Electric furnace short-flow steel plant water treatment and wastewater zero discharge process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030205524A1 (en) * 1999-11-19 2003-11-06 Microtek Medical Holdings, Inc. Process for treatment of aqueous environments containing a water-soluble polymer
US20040055964A1 (en) * 2002-09-25 2004-03-25 Ural Process Engineering Company Method and device for electroextraction of heavy metals from technological solutions and wastewater
CN102351352A (en) * 2011-07-04 2012-02-15 昆明理工大学 Electrodialysis-efficient evaporation method for treating mining and metallurgy waste water membrane filtrating concentrate
CN203820492U (en) * 2014-03-27 2014-09-10 江阴市江中设备制造有限公司 Continuous wastewater evaporation-concentration-crystallization device
CN204848545U (en) * 2015-05-22 2015-12-09 长沙南方宇航环境工程有限公司 Electroplating effluent retrieves zero discharging equipment
CN106242143A (en) * 2016-08-22 2016-12-21 西安皓海嘉环保工程有限责任公司 A kind of processing method of electroplating wastewater zero

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030205524A1 (en) * 1999-11-19 2003-11-06 Microtek Medical Holdings, Inc. Process for treatment of aqueous environments containing a water-soluble polymer
US20040055964A1 (en) * 2002-09-25 2004-03-25 Ural Process Engineering Company Method and device for electroextraction of heavy metals from technological solutions and wastewater
CN102351352A (en) * 2011-07-04 2012-02-15 昆明理工大学 Electrodialysis-efficient evaporation method for treating mining and metallurgy waste water membrane filtrating concentrate
CN203820492U (en) * 2014-03-27 2014-09-10 江阴市江中设备制造有限公司 Continuous wastewater evaporation-concentration-crystallization device
CN204848545U (en) * 2015-05-22 2015-12-09 长沙南方宇航环境工程有限公司 Electroplating effluent retrieves zero discharging equipment
CN106242143A (en) * 2016-08-22 2016-12-21 西安皓海嘉环保工程有限责任公司 A kind of processing method of electroplating wastewater zero

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423885A (en) * 2018-05-22 2018-08-21 佛山市三水万瑞达环保科技有限公司 A kind of electroplating waste processing process
CN112794505A (en) * 2020-12-30 2021-05-14 中冶赛迪工程技术股份有限公司 Electric furnace short-flow steel plant water treatment and wastewater zero discharge process

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